paper_id
string
title
string
paper_url
string
pdf_url
string
authors
list
abstract
large_string
track
string
primary_area
string
doi
string
volume
string
issue
string
pages
string
abstract_source
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arxiv_id_source
string
10.1609/aaai.v35i13.17379
Outlier Impact Characterization for Time Series Data
https://ojs.aaai.org/index.php/AAAI/article/view/17379
https://ojs.aaai.org/index.php/AAAI/article/download/17379/17186
[ "Jianbo Li", "Lecheng Zheng", "Yada Zhu", "Jingrui He" ]
For time series data, certain types of outliers are intrinsically more harmful for parameter estimation and future predictions than others, irrespective of their frequency. In this paper, for the first time, we study the characteristics of such outliers through the lens of the influence functional from robust statistic...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17379
35
13
11595-11603
official
null
null
10.1609/aaai.v35i13.17378
How RL Agents Behave When Their Actions Are Modified
https://ojs.aaai.org/index.php/AAAI/article/view/17378
https://ojs.aaai.org/index.php/AAAI/article/download/17378/17185
[ "Eric D. Langlois", "Tom Everitt" ]
Reinforcement learning in complex environments may require supervision to prevent the agent from attempting dangerous actions. As a result of supervisor intervention, the executed action may differ from the action specified by the policy. How does this affect learning? We present the Modified-Action Markov Decision Pro...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17378
35
13
11586-11594
official
2102.07716
title_snapshot
10.1609/aaai.v35i13.17377
On Generating Plausible Counterfactual and Semi-Factual Explanations for Deep Learning
https://ojs.aaai.org/index.php/AAAI/article/view/17377
https://ojs.aaai.org/index.php/AAAI/article/download/17377/17184
[ "Eoin M. Kenny", "Mark T Keane" ]
There is a growing concern that the recent progress made in AI, especially regarding the predictive competence of deep learning models, will be undermined by a failure to properly explain their operation and outputs. In response to this disquiet, counterfactual explanations have become very popular in eXplainable AI (X...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17377
35
13
11575-11585
official
2009.06399
title_snapshot
10.1609/aaai.v35i13.17376
Ordered Counterfactual Explanation by Mixed-Integer Linear Optimization
https://ojs.aaai.org/index.php/AAAI/article/view/17376
https://ojs.aaai.org/index.php/AAAI/article/download/17376/17183
[ "Kentaro Kanamori", "Takuya Takagi", "Ken Kobayashi", "Yuichi Ike", "Kento Uemura", "Hiroki Arimura" ]
Post-hoc explanation methods for machine learning models have been widely used to support decision-making. One of the popular methods is Counterfactual Explanation (CE), also known as Actionable Recourse, which provides a user with a perturbation vector of features that alters the prediction result. Given a perturbatio...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17376
35
13
11564-11574
official
2012.11782
title_snapshot
10.1609/aaai.v35i13.17374
Visualization of Supervised and Self-Supervised Neural Networks via Attribution Guided Factorization
https://ojs.aaai.org/index.php/AAAI/article/view/17374
https://ojs.aaai.org/index.php/AAAI/article/download/17374/17181
[ "Shir Gur", "Ameen Ali", "Lior Wolf" ]
Neural network visualization techniques mark image locations by their relevancy to the network's classification. Existing methods are effective in highlighting the regions that affect the resulting classification the most. However, as we show, these methods are limited in their ability to identify the support for alter...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17374
35
13
11545-11554
official
2012.02166
title_snapshot
10.1609/aaai.v35i13.17363
Beyond Class-Conditional Assumption: A Primary Attempt to Combat Instance-Dependent Label Noise
https://ojs.aaai.org/index.php/AAAI/article/view/17363
https://ojs.aaai.org/index.php/AAAI/article/download/17363/17170
[ "Pengfei Chen", "Junjie Ye", "Guangyong Chen", "Jingwei Zhao", "Pheng-Ann Heng" ]
Supervised learning under label noise has seen numerous advances recently, while existing theoretical findings and empirical results broadly build up on the class-conditional noise (CCN) assumption that the noise is independent of input features given the true label. In this work, we present a theoretical hypothesis te...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17363
35
13
11442-11450
official
2012.05458
title_snapshot
10.1609/aaai.v35i13.17364
Robustness of Accuracy Metric and its Inspirations in Learning with Noisy Labels
https://ojs.aaai.org/index.php/AAAI/article/view/17364
https://ojs.aaai.org/index.php/AAAI/article/download/17364/17171
[ "Pengfei Chen", "Junjie Ye", "Guangyong Chen", "Jingwei Zhao", "Pheng-Ann Heng" ]
For multi-class classification under class-conditional label noise, we prove that the accuracy metric itself can be robust. We concretize this finding's inspiration in two essential aspects: training and validation, with which we address critical issues in learning with noisy labels. For training, we show that maximizi...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17364
35
13
11451-11461
official
2012.04193
title_snapshot
10.1609/aaai.v35i13.17365
A Unified Taylor Framework for Revisiting Attribution Methods
https://ojs.aaai.org/index.php/AAAI/article/view/17365
https://ojs.aaai.org/index.php/AAAI/article/download/17365/17172
[ "Huiqi Deng", "Na Zou", "Mengnan Du", "Weifu Chen", "Guocan Feng", "Xia Hu" ]
Attribution methods have been developed to understand the decision making process of machine learning models, especially deep neural networks, by assigning importance scores to individual features. Existing attribution methods often built upon empirical intuitions and heuristics. There still lacks a general and theoret...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17365
35
13
11462-11469
official
2008.09695
title_snapshot
10.1609/aaai.v35i13.17366
Verifiable Machine Ethics in Changing Contexts
https://ojs.aaai.org/index.php/AAAI/article/view/17366
https://ojs.aaai.org/index.php/AAAI/article/download/17366/17173
[ "Louise A. Dennis", "Martin Mose Bentzen", "Felix Lindner", "Michael Fisher" ]
Many systems proposed for the implementation of ethical reasoning involve an encoding of user values as a set of rules or a model. We consider the question of how changes of context affect these encodings. We propose the use of a reasoning cycle, in which information about the ethical reasoner's context is imported in ...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17366
35
13
11470-11478
official
null
null
10.1609/aaai.v35i13.17367
Epistemic Logic of Know-Who
https://ojs.aaai.org/index.php/AAAI/article/view/17367
https://ojs.aaai.org/index.php/AAAI/article/download/17367/17174
[ "Sophia Epstein", "Pavel Naumov" ]
The paper suggests a definition of "know who" as a modality using Grove-Halpern semantics of names. It also introduces a logical system that describes the interplay between modalities "knows who", "knows", and "for all agents". The main technical result is a completeness theorem for the proposed system.
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17367
35
13
11479-11486
official
2012.06651
title_snapshot
10.1609/aaai.v35i13.17368
Agent Incentives: A Causal Perspective
https://ojs.aaai.org/index.php/AAAI/article/view/17368
https://ojs.aaai.org/index.php/AAAI/article/download/17368/17175
[ "Tom Everitt", "Ryan Carey", "Eric D. Langlois", "Pedro A. Ortega", "Shane Legg" ]
We present a framework for analysing agent incentives using causal influence diagrams. We establish that a well-known criterion for value of information is complete. We propose a new graphical criterion for value of control, establishing its soundness and completeness. We also introduce two new concepts for incentive a...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17368
35
13
11487-11495
official
2102.01685
title_snapshot
10.1609/aaai.v35i13.17369
Individual Fairness in Kidney Exchange Programs
https://ojs.aaai.org/index.php/AAAI/article/view/17369
https://ojs.aaai.org/index.php/AAAI/article/download/17369/17176
[ "Golnoosh Farnadi", "William St-Arnaud", "Behrouz Babaki", "Margarida Carvalho" ]
Kidney transplant is the preferred method of treatment for patients suffering from kidney failure. However, not all patients can find a donor which matches their physiological characteristics. Kidney exchange programs (KEPs) seek to match such incompatible patient-donor pairs together, usually with the main objective o...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17369
35
13
11496-11505
official
null
null
10.1609/aaai.v35i13.17370
Fair Representations by Compression
https://ojs.aaai.org/index.php/AAAI/article/view/17370
https://ojs.aaai.org/index.php/AAAI/article/download/17370/17177
[ "Xavier Gitiaux", "Huzefa Rangwala" ]
Organizations that collect and sell data face increasing scrutiny for the discriminatory use of data. We propose a novel unsupervised approach to map data into a compressed binary representation independent of sensitive attributes. We show that in an information bottleneck framework, a parsimonious representation shoul...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17370
35
13
11506-11515
official
2105.14044
title_snapshot
10.1609/aaai.v35i13.17371
Amnesiac Machine Learning
https://ojs.aaai.org/index.php/AAAI/article/view/17371
https://ojs.aaai.org/index.php/AAAI/article/download/17371/17178
[ "Laura Graves", "Vineel Nagisetty", "Vijay Ganesh" ]
The Right to be Forgotten is part of the recently enacted General Data Protection Regulation (GDPR) law that affects any data holder that has data on European Union residents. It gives EU residents the ability to request deletion of their personal data, including training records used to train machine learning models. ...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17371
35
13
11516-11524
official
2010.10981
title_snapshot
10.1609/aaai.v35i13.17372
On the Verification of Neural ODEs with Stochastic Guarantees
https://ojs.aaai.org/index.php/AAAI/article/view/17372
https://ojs.aaai.org/index.php/AAAI/article/download/17372/17179
[ "Sophie Grunbacher", "Ramin Hasani", "Mathias Lechner", "Jacek Cyranka", "Scott A. Smolka", "Radu Grosu" ]
We show that Neural ODEs, an emerging class of time-continuous neural networks, can be verified by solving a set of global-optimization problems. For this purpose, we introduce Stochastic Lagrangian Reachability (SLR), an abstraction-based technique for constructing a tight Reachtube (an over-approximation of the set o...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17372
35
13
11525-11535
official
2012.08863
title_snapshot
10.1609/aaai.v35i13.17373
PenDer: Incorporating Shape Constraints via Penalized Derivatives
https://ojs.aaai.org/index.php/AAAI/article/view/17373
https://ojs.aaai.org/index.php/AAAI/article/download/17373/17180
[ "Akhil Gupta", "Lavanya Marla", "Ruoyu Sun", "Naman Shukla", "Arinbjörn Kolbeinsson" ]
When deploying machine learning models in the real-world, system designers may wish that models exhibit certain shape behavior, i.e., model outputs follow a particular shape with respect to input features. Trends such as monotonicity, convexity, diminishing or accelerating returns are some of the desired shapes. Presen...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17373
35
13
11536-11544
official
null
null
10.1609/aaai.v35i13.17358
Explaining A Black-box By Using A Deep Variational Information Bottleneck Approach
https://ojs.aaai.org/index.php/AAAI/article/view/17358
https://ojs.aaai.org/index.php/AAAI/article/download/17358/17165
[ "Seojin Bang", "Pengtao Xie", "Heewook Lee", "Wei Wu", "Eric Xing" ]
Interpretable machine learning has gained much attention recently. Briefness and comprehensiveness are necessary in order to provide a large amount of information concisely when explaining a black-box decision system. However, existing interpretable machine learning methods fail to consider briefness and comprehensiven...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17358
35
13
11396-11404
official
1902.06918
title_judge
10.1609/aaai.v35i13.17362
FIMAP: Feature Importance by Minimal Adversarial Perturbation
https://ojs.aaai.org/index.php/AAAI/article/view/17362
https://ojs.aaai.org/index.php/AAAI/article/download/17362/17169
[ "Matt Chapman-Rounds", "Umang Bhatt", "Erik Pazos", "Marc-Andre Schulz", "Konstantinos Georgatzis" ]
Instance-based model-agnostic feature importance explanations (LIME, SHAP, L2X) are a popular form of algorithmic transparency. These methods generally return either a weighting or subset of input features as an explanation for the classification of an instance. An alternative literature argues instead that counterfact...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17362
35
13
11433-11441
official
null
null
10.1609/aaai.v35i13.17361
Bayes-TrEx: a Bayesian Sampling Approach to Model Transparency by Example
https://ojs.aaai.org/index.php/AAAI/article/view/17361
https://ojs.aaai.org/index.php/AAAI/article/download/17361/17168
[ "Serena Booth", "Yilun Zhou", "Ankit Shah", "Julie Shah" ]
Post-hoc explanation methods are gaining popularity for interpreting, understanding, and debugging neural networks. Most analyses using such methods explain decisions in response to inputs drawn from the test set. However, the test set may have few examples that trigger some model behaviors, such as high-confidence fai...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17361
35
13
11423-11432
official
2002.10248
title_snapshot
10.1609/aaai.v35i13.17360
TripleTree: A Versatile Interpretable Representation of Black Box Agents and their Environments
https://ojs.aaai.org/index.php/AAAI/article/view/17360
https://ojs.aaai.org/index.php/AAAI/article/download/17360/17167
[ "Tom Bewley", "Jonathan Lawry" ]
In explainable artificial intelligence, there is increasing interest in understanding the behaviour of autonomous agents to build trust and validate performance. Modern agent architectures, such as those trained by deep reinforcement learning, are currently so lacking in interpretable structure as to effectively be bla...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17360
35
13
11415-11422
official
2009.04743
title_snapshot
10.1609/aaai.v35i13.17359
Is the Most Accurate AI the Best Teammate? Optimizing AI for Teamwork
https://ojs.aaai.org/index.php/AAAI/article/view/17359
https://ojs.aaai.org/index.php/AAAI/article/download/17359/17166
[ "Gagan Bansal", "Besmira Nushi", "Ece Kamar", "Eric Horvitz", "Daniel S. Weld" ]
AI practitioners typically strive to develop the most accurate systems, making an implicit assumption that the AI system will function autonomously. However, in practice, AI systems often are used to provide advice to people in domains ranging from criminal justice and finance to healthcare. In such AI-advised decision...
main
Philosophy and Ethics of AI
10.1609/aaai.v35i13.17359
35
13
11405-11414
official
2004.13102
title_snapshot
10.1609/aaai.v35i13.17430
Multi-Decoder Attention Model with Embedding Glimpse for Solving Vehicle Routing Problems
https://ojs.aaai.org/index.php/AAAI/article/view/17430
https://ojs.aaai.org/index.php/AAAI/article/download/17430/17237
[ "Liang Xin", "Wen Song", "Zhiguang Cao", "Jie Zhang" ]
We present a novel deep reinforcement learning method to learn construction heuristics for vehicle routing problems. In specific, we propose a Multi-Decoder Attention Model (MDAM) to train multiple diverse policies, which effectively increases the chance of finding good solutions compared with existing methods that tra...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17430
35
13
12042-12049
official
2012.10638
title_snapshot
10.1609/aaai.v35i13.17429
Competitive Analysis for Two-Level Ski-Rental Problem
https://ojs.aaai.org/index.php/AAAI/article/view/17429
https://ojs.aaai.org/index.php/AAAI/article/download/17429/17236
[ "Binghan Wu", "Wei Bao", "Dong Yuan" ]
In this paper, we study a two-level ski-rental problem. There are multiple commodities, each one can be “rented” (paying for on-demand usage) or “purchased” (paying for life-time usage). There is also a combo purchase available so that all commodities can be purchased as a combo. Since the usages of the commodities in ...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17429
35
13
12034-12041
official
null
null
10.1609/aaai.v35i13.17428
Asking the Right Questions: Learning Interpretable Action Models Through Query Answering
https://ojs.aaai.org/index.php/AAAI/article/view/17428
https://ojs.aaai.org/index.php/AAAI/article/download/17428/17235
[ "Pulkit Verma", "Shashank Rao Marpally", "Siddharth Srivastava" ]
This paper develops a new approach for estimating an interpretable, relational model of a black-box autonomous agent that can plan and act. Our main contributions are a new paradigm for estimating such models using a rudimentary query interface with the agent and a hierarchical querying algorithm that generates an inte...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17428
35
13
12024-12033
official
1912.12613
title_snapshot
10.1609/aaai.v35i13.17427
Dynamic Automaton-Guided Reward Shaping for Monte Carlo Tree Search
https://ojs.aaai.org/index.php/AAAI/article/view/17427
https://ojs.aaai.org/index.php/AAAI/article/download/17427/17234
[ "Alvaro Velasquez", "Brett Bissey", "Lior Barak", "Andre Beckus", "Ismail Alkhouri", "Daniel Melcer", "George Atia" ]
Reinforcement learning and planning have been revolutionized in recent years, due in part to the mass adoption of deep convolutional neural networks and the resurgence of powerful methods to refine decision-making policies. However, the problem of sparse reward signals and their representation remains pervasive in many...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17427
35
13
12015-12023
official
null
null
10.1609/aaai.v35i13.17426
On the Optimal Efficiency of A* with Dominance Pruning
https://ojs.aaai.org/index.php/AAAI/article/view/17426
https://ojs.aaai.org/index.php/AAAI/article/download/17426/17233
[ "Álvaro Torralba" ]
A well known result is that, given a consistent heuristic and no other source of information, A* does expand a minimal number of nodes up to tie-breaking. We extend this analysis for A* with dominance pruning, which exploits a dominance relation to eliminate some nodes during the search. We show that the expansion orde...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17426
35
13
12007-12014
official
null
null
10.1609/aaai.v35i13.17425
Faster Stackelberg Planning via Symbolic Search and Information Sharing
https://ojs.aaai.org/index.php/AAAI/article/view/17425
https://ojs.aaai.org/index.php/AAAI/article/download/17425/17232
[ "Álvaro Torralba", "Patrick Speicher", "Robert Künnemann", "Marcel Steinmetz", "Jörg Hoffmann" ]
Stackelberg planning is a recent framework where a leader and a follower each choose a plan in the same planning task, the leader's objective being to maximize plan cost for the follower. This formulation naturally captures security-related (leader=defender, follower=attacker) as well as robustness-related (leader=adve...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17425
35
13
11998-12006
official
null
null
10.1609/aaai.v35i13.17424
A Complexity-theoretic Analysis of Green Pickup-and-Delivery Problems
https://ojs.aaai.org/index.php/AAAI/article/view/17424
https://ojs.aaai.org/index.php/AAAI/article/download/17424/17231
[ "Xing Tan", "Jimmy Xiangji Huang" ]
In a Green Pickup-and-Delivery problem (GPD), vehicles traveling in a transport network achieving pickup-and-delivery tasks are in particular subject to the two \textit{green} constraints: limited vehicle fuel capacity thus short vehicle traveling range, and limited availability of refueling infrastructure for the vehi...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17424
35
13
11990-11997
official
null
null
10.1609/aaai.v35i13.17423
Online Action Recognition
https://ojs.aaai.org/index.php/AAAI/article/view/17423
https://ojs.aaai.org/index.php/AAAI/article/download/17423/17230
[ "Alejandro Suárez-Hernández", "Javier Segovia-Aguas", "Carme Torras", "Guillem Alenyà" ]
Recognition in planning seeks to find agent intentions, goals or activities given a set of observations and a knowledge library (e.g. goal states, plans or domain theories). In this work we introduce the problem of Online Action Recognition. It consists in recognizing, in an open world, the planning action that best ex...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17423
35
13
11981-11989
official
2012.07464
title_snapshot
10.1609/aaai.v35i13.17412
Improved POMDP Tree Search Planning with Prioritized Action Branching
https://ojs.aaai.org/index.php/AAAI/article/view/17412
https://ojs.aaai.org/index.php/AAAI/article/download/17412/17219
[ "John Mern", "Anil Yildiz", "Lawrence Bush", "Tapan Mukerji", "Mykel J. Kochenderfer" ]
Online solvers for partially observable Markov decision processes have difficulty scaling to problems with large action spaces. This paper proposes a method called PA-POMCPOW to sample a subset of the action space that provides varying mixtures of exploitation and exploration for inclusion in a search tree. The propose...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17412
35
13
11888-11894
official
2010.03599
title_snapshot
10.1609/aaai.v35i13.17411
Bayesian Optimized Monte Carlo Planning
https://ojs.aaai.org/index.php/AAAI/article/view/17411
https://ojs.aaai.org/index.php/AAAI/article/download/17411/17218
[ "John Mern", "Anil Yildiz", "Zachary Sunberg", "Tapan Mukerji", "Mykel J. Kochenderfer" ]
Online solvers for partially observable Markov decision processes have difficulty scaling to problems with large action spaces. Monte Carlo tree search with progressive widening attempts to improve scaling by sampling from the action space to construct a policy search tree. The performance of progressive widening searc...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17411
35
13
11880-11887
official
2010.03597
title_snapshot
10.1609/aaai.v35i13.17413
Synthesis of Search Heuristics for Temporal Planning via Reinforcement Learning
https://ojs.aaai.org/index.php/AAAI/article/view/17413
https://ojs.aaai.org/index.php/AAAI/article/download/17413/17220
[ "Andrea Micheli", "Alessandro Valentini" ]
Automated temporal planning is the problem of synthesizing, starting from a model of a system, a course of actions to achieve a desired goal when temporal constraints, such as deadlines, are present in the problem. Despite considerable successes in the literature, scalability is still a severe limitation for existing p...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17413
35
13
11895-11902
official
null
null
10.1609/aaai.v35i13.17414
Revealing Hidden Preconditions and Effects of Compound HTN Planning Tasks – A Complexity Analysis
https://ojs.aaai.org/index.php/AAAI/article/view/17414
https://ojs.aaai.org/index.php/AAAI/article/download/17414/17221
[ "Conny Olz", "Susanne Biundo", "Pascal Bercher" ]
In Hierarchical Task Network (HTN) planning, compound tasks need to be refined into executable (primitive) action sequences. In contrast to their primitive counterparts, compound tasks do not specify preconditions or effects. Thus, their implications on the states in which they are applied are not explicitly known: the...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17414
35
13
11903-11912
official
null
null
10.1609/aaai.v35i13.17415
Faster and Better Simple Temporal Problems
https://ojs.aaai.org/index.php/AAAI/article/view/17415
https://ojs.aaai.org/index.php/AAAI/article/download/17415/17222
[ "Dario Ostuni", "Alice Raffaele", "Romeo Rizzi", "Matteo Zavatteri" ]
In this paper we give a structural characterization and extend the tractability frontier of the Simple Temporal Problem (STP) by defining the class of the Extended Simple Temporal Problem (ESTP), which augments STP with strict inequalities and monotone Boolean formulae on inequations (i.e., formulae involving the opera...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17415
35
13
11913-11920
official
null
null
10.1609/aaai.v35i13.17416
Latent Independent Excitation for Generalizable Sensor-based Cross-Person Activity Recognition
https://ojs.aaai.org/index.php/AAAI/article/view/17416
https://ojs.aaai.org/index.php/AAAI/article/download/17416/17223
[ "Hangwei Qian", "Sinno Jialin Pan", "Chunyan Miao" ]
In wearable-sensor-based activity recognition, it is often assumed that the training and test samples follow the same data distribution. This assumption neglects practical scenarios where the activity patterns inevitably vary from person to person. To solve this problem, transfer learning and domain adaptation approach...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17416
35
13
11921-11929
official
null
null
10.1609/aaai.v35i13.17417
Minimax Regret Optimisation for Robust Planning in Uncertain Markov Decision Processes
https://ojs.aaai.org/index.php/AAAI/article/view/17417
https://ojs.aaai.org/index.php/AAAI/article/download/17417/17224
[ "Marc Rigter", "Bruno Lacerda", "Nick Hawes" ]
The parameters for a Markov Decision Process (MDP) often cannot be specified exactly. Uncertain MDPs (UMDPs) capture this model ambiguity by defining sets which the parameters belong to. Minimax regret has been proposed as an objective for planning in UMDPs to find robust policies which are not overly conservative. In ...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17417
35
13
11930-11938
official
2012.04626
title_snapshot
10.1609/aaai.v35i13.17418
An LP-Based Approach for Goal Recognition as Planning
https://ojs.aaai.org/index.php/AAAI/article/view/17418
https://ojs.aaai.org/index.php/AAAI/article/download/17418/17225
[ "Luísa R. A. Santos", "Felipe Meneguzzi", "Ramon Fraga Pereira", "André Grahl Pereira" ]
Goal recognition aims to recognize the set of candidate goals that are compatible with the observed behavior of an agent. In this paper, we develop a method based on the operator-counting framework that efficiently computes solutions that satisfy the observations and uses the information generated to solve goal recogni...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17418
35
13
11939-11946
official
1905.04210
title_snapshot
10.1609/aaai.v35i13.17419
Saturated Post-hoc Optimization for Classical Planning
https://ojs.aaai.org/index.php/AAAI/article/view/17419
https://ojs.aaai.org/index.php/AAAI/article/download/17419/17226
[ "Jendrik Seipp", "Thomas Keller", "Malte Helmert" ]
Saturated cost partitioning and post-hoc optimization are two powerful cost partitioning algorithms for optimal classical planning. The main idea of saturated cost partitioning is to give each considered heuristic only the fraction of remaining operator costs that it needs to prove its estimates. We show how to apply t...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17419
35
13
11947-11953
official
null
null
10.1609/aaai.v35i13.17420
Improved Knowledge Modeling and Its Use for Signaling in Multi-Agent Planning with Partial Observability
https://ojs.aaai.org/index.php/AAAI/article/view/17420
https://ojs.aaai.org/index.php/AAAI/article/download/17420/17227
[ "Shashank Shekhar", "Ronen I. Brafman", "Guy Shani" ]
Collaborative Multi-Agent Planning (MAP) problems with uncertainty and partial observability are often modeled as Dec-POMDPs. Yet, in deterministic domains, Qualitative Dec-POMDPs can scale up to much larger problem sizes. The best current QDec solver (QDec-FP) reduces MAP problems to multiple single-agent problems. In...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17420
35
13
11954-11961
official
null
null
10.1609/aaai.v35i13.17421
Planning with Learned Object Importance in Large Problem Instances using Graph Neural Networks
https://ojs.aaai.org/index.php/AAAI/article/view/17421
https://ojs.aaai.org/index.php/AAAI/article/download/17421/17228
[ "Tom Silver", "Rohan Chitnis", "Aidan Curtis", "Joshua B. Tenenbaum", "Tomás Lozano-Pérez", "Leslie Pack Kaelbling" ]
Real-world planning problems often involve hundreds or even thousands of objects, straining the limits of modern planners. In this work, we address this challenge by learning to predict a small set of objects that, taken together, would be sufficient for finding a plan. We propose a graph neural network architecture fo...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17421
35
13
11962-11971
official
2009.05613
title_snapshot
10.1609/aaai.v35i13.17422
Symbolic Search for Oversubscription Planning
https://ojs.aaai.org/index.php/AAAI/article/view/17422
https://ojs.aaai.org/index.php/AAAI/article/download/17422/17229
[ "David Speck", "Michael Katz" ]
The objective of optimal oversubscription planning is to find a plan that yields an end state with a maximum utility while keeping plan cost under a certain bound. In practice, the situation occurs whenever a large number of possible, often competing goals of varying value exist, or the resources are not sufficient to ...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17422
35
13
11972-11980
official
null
null
10.1609/aaai.v35i13.17410
Progression Heuristics for Planning with Probabilistic LTL Constraints
https://ojs.aaai.org/index.php/AAAI/article/view/17410
https://ojs.aaai.org/index.php/AAAI/article/download/17410/17217
[ "Ian Mallett", "Sylvie Thiebaux", "Felipe Trevizan" ]
Probabilistic planning subject to multi-objective probabilistic temporal logic (PLTL) constraints models the problem of computing safe and robust behaviours for agents in stochastic environments. We present novel admissible heuristics to guide the search for cost-optimal policies for these problems. These heuristics pr...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17410
35
13
11870-11879
official
null
null
10.1609/aaai.v35i13.17409
On-line Learning of Planning Domains from Sensor Data in PAL: Scaling up to Large State Spaces
https://ojs.aaai.org/index.php/AAAI/article/view/17409
https://ojs.aaai.org/index.php/AAAI/article/download/17409/17216
[ "Leonardo Lamanna", "Alfonso Emilio Gerevini", "Alessandro Saetti", "Luciano Serafini", "Paolo Traverso" ]
We propose an approach to learn an extensional representation of a discrete deterministic planning domain from observations in a continuous space navigated by the agent actions. This is achieved through the use of a perception function providing the likelihood of a real-value observation being in a given state of the p...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17409
35
13
11862-11869
official
null
null
10.1609/aaai.v35i13.17408
Branch and Price for Bus Driver Scheduling with Complex Break Constraints
https://ojs.aaai.org/index.php/AAAI/article/view/17408
https://ojs.aaai.org/index.php/AAAI/article/download/17408/17215
[ "Lucas Kletzander", "Nysret Musliu", "Pascal Van Hentenryck" ]
This paper presents a Branch and Price approach for a real-life Bus Driver Scheduling problem with a complex set of break constraints. The column generation uses a set partitioning model as master problem and a resource constrained shortest path problem as subproblem. Due to the complex constraints, the branch and pric...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17408
35
13
11853-11861
official
null
null
10.1609/aaai.v35i13.17407
Bike-Repositioning Using Volunteers: Crowd Sourcing with Choice Restriction
https://ojs.aaai.org/index.php/AAAI/article/view/17407
https://ojs.aaai.org/index.php/AAAI/article/download/17407/17214
[ "Jinjia Huang", "Mabel C. Chou", "Chung-Piaw Teo" ]
Motivated by the Bike Angels Program in New York's Citi Bike and Boston's Blue Bikes, we study the use of (registered) volunteers to re-position empty bikes for riders in a bike sharing system. We propose a method that can be used to deploy the volunteers in the system, based on the real time distribution of the bikes ...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17407
35
13
11844-11852
official
null
null
10.1609/aaai.v35i13.17406
Endomorphisms of Classical Planning Tasks
https://ojs.aaai.org/index.php/AAAI/article/view/17406
https://ojs.aaai.org/index.php/AAAI/article/download/17406/17213
[ "Rostislav Horčík", "Daniel Fišer" ]
Detection of redundant operators that can be safely removed from the planning task is an essential technique allowing to greatly improve performance of planners. In this paper, we employ structure-preserving maps on labeled transition systems (LTSs), namely endomorphisms well known from model theory, in order to detect...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17406
35
13
11835-11843
official
null
null
10.1609/aaai.v35i13.17405
Landmark Generation in HTN Planning
https://ojs.aaai.org/index.php/AAAI/article/view/17405
https://ojs.aaai.org/index.php/AAAI/article/download/17405/17212
[ "Daniel Höller", "Pascal Bercher" ]
Landmarks (LMs) are state features that need to be made true or tasks that need to be contained in every solution of a planning problem. They are a valuable source of information in planning and can be exploited in various ways. LMs have been used both in classical and hierarchical planning, but while there is much wor...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17405
35
13
11826-11834
official
null
null
10.1609/aaai.v35i13.17404
Equitable Scheduling on a Single Machine
https://ojs.aaai.org/index.php/AAAI/article/view/17404
https://ojs.aaai.org/index.php/AAAI/article/download/17404/17211
[ "Klaus Heeger", "Dan Hermelin", "George B. Mertzios", "Hendrik Molter", "Rolf Niedermeier", "Dvir Shabtay" ]
We introduce a natural but seemingly yet unstudied generalization of the problem of scheduling jobs on a single machine so as to minimize the number of tardy jobs. Our generalization lies in simultaneously considering several instances of the problem at once. In particular, we have n clients over a period of m days, wh...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17404
35
13
11818-11825
official
2010.04643
title_snapshot
10.1609/aaai.v35i13.17403
Revisiting Dominance Pruning in Decoupled Search
https://ojs.aaai.org/index.php/AAAI/article/view/17403
https://ojs.aaai.org/index.php/AAAI/article/download/17403/17210
[ "Daniel Gnad" ]
In classical planning as search, duplicate state pruning is a standard method to avoid unnecessarily handling the same state multiple times. In decoupled search, similar to symbolic search approaches, search nodes, called decoupled states, do not correspond to individual states, but to sets of states. Therefore, duplic...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17403
35
13
11809-11817
official
null
null
10.1609/aaai.v35i13.17393
Constrained Risk-Averse Markov Decision Processes
https://ojs.aaai.org/index.php/AAAI/article/view/17393
https://ojs.aaai.org/index.php/AAAI/article/download/17393/17200
[ "Mohamadreza Ahmadi", "Ugo Rosolia", "Michel D. Ingham", "Richard M. Murray", "Aaron D. Ames" ]
We consider the problem of designing policies for Markov decision processes (MDPs) with dynamic coherent risk objectives and constraints. We begin by formulating the problem in a Lagrangian framework. Under the assumption that the risk objectives and constraints can be represented by a Markov risk transition mapping, w...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17393
35
13
11718-11725
official
2012.02423
title_snapshot
10.1609/aaai.v35i13.17392
Computing Plan-Length Bounds Using Lengths of Longest Paths
https://ojs.aaai.org/index.php/AAAI/article/view/17392
https://ojs.aaai.org/index.php/AAAI/article/download/17392/17199
[ "Mohammad Abdulaziz", "Dominik Berger" ]
We devise a method to exactly compute the length of the longest simple path in factored state spaces, like state spaces encountered in classical planning. Although the complexity of this problem is NEXP-Hard, we show that our method can be used to compute practically useful upper-bounds on lengths of plans. We show tha...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17392
35
13
11709-11717
official
2006.01011
title_snapshot
10.1609/aaai.v35i13.17394
Contract Scheduling With Predictions
https://ojs.aaai.org/index.php/AAAI/article/view/17394
https://ojs.aaai.org/index.php/AAAI/article/download/17394/17201
[ "Spyros Angelopoulos", "Shahin Kamali" ]
Contract scheduling is a general technique that allows to design a system with interruptible capabilities, given an algorithm that is not necessarily interruptible. Previous work on this topic has largely assumed that the interruption is a worst-case deadline that is unknown to the scheduler. In this work, we study the...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17394
35
13
11726-11733
official
2011.12439
title_snapshot
10.1609/aaai.v35i13.17395
Responsibility Attribution in Parameterized Markovian Models
https://ojs.aaai.org/index.php/AAAI/article/view/17395
https://ojs.aaai.org/index.php/AAAI/article/download/17395/17202
[ "Christel Baier", "Florian Funke", "Rupak Majumdar" ]
We consider the problem of responsibility attribution in the setting of parametric Markov chains. Given a family of Markov chains over a set of parameters, and a property, responsibility attribution asks how the difference in the value of the property should be attributed to the parameters when they change from one poi...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17395
35
13
11734-11743
official
null
null
10.1609/aaai.v35i13.17396
Symbolic Search for Optimal Total-Order HTN Planning
https://ojs.aaai.org/index.php/AAAI/article/view/17396
https://ojs.aaai.org/index.php/AAAI/article/download/17396/17203
[ "Gregor Behnke", "David Speck" ]
Symbolic search has proven to be a useful approach to optimal classical planning. In Hierarchical Task Network (HTN) planning, however, there is little work on optimal planning. One reason for this is that in HTN planning, most algorithms are based on heuristic search, and admissible heuristics have to incorporate the ...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17396
35
13
11744-11754
official
null
null
10.1609/aaai.v35i13.17397
A Multivariate Complexity Analysis of the Material Consumption Scheduling Problem
https://ojs.aaai.org/index.php/AAAI/article/view/17397
https://ojs.aaai.org/index.php/AAAI/article/download/17397/17204
[ "Matthias Bentert", "Robert Bredereck", "Péter Györgyi", "Andrzej Kaczmarczyk", "Rolf Niedermeier" ]
The NP-hard Material Consumption Scheduling Problem and closely related problems have been thoroughly studied since the 1980's. Roughly speaking, the problem deals with minimizing the makespan when scheduling jobs that consume non-renewable resources. We focus on the single-machine case without preemption: from time to...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17397
35
13
11755-11763
official
2102.13642
title_snapshot
10.1609/aaai.v35i13.17398
General Policies, Representations, and Planning Width
https://ojs.aaai.org/index.php/AAAI/article/view/17398
https://ojs.aaai.org/index.php/AAAI/article/download/17398/17205
[ "Blai Bonet", "Hector Geffner" ]
It has been observed that in many of the benchmark planning domains, atomic goals can be reached with a simple polynomial exploration procedure, called IW, that runs in time exponential in the problem width. Such problems have indeed a bounded width: a width that does not grow with the number of problem variables and i...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17398
35
13
11764-11773
official
null
null
10.1609/aaai.v35i13.17399
Successor Feature Sets: Generalizing Successor Representations Across Policies
https://ojs.aaai.org/index.php/AAAI/article/view/17399
https://ojs.aaai.org/index.php/AAAI/article/download/17399/17206
[ "Kianté Brantley", "Soroush Mehri", "Geoff J. Gordon" ]
Successor-style representations have many advantages for reinforcement learning: for example, they can help an agent generalize from past experience to new goals, and they have been proposed as explanations of behavioral and neural data from human and animal learners. They also form a natural bridge between model-based...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17399
35
13
11774-11781
official
2103.02650
title_snapshot
10.1609/aaai.v35i13.17400
GLIB: Efficient Exploration for Relational Model-Based Reinforcement Learning via Goal-Literal Babbling
https://ojs.aaai.org/index.php/AAAI/article/view/17400
https://ojs.aaai.org/index.php/AAAI/article/download/17400/17207
[ "Rohan Chitnis", "Tom Silver", "Joshua B. Tenenbaum", "Leslie Pack Kaelbling", "Tomás Lozano-Pérez" ]
We address the problem of efficient exploration for transition model learning in the relational model-based reinforcement learning setting without extrinsic goals or rewards. Inspired by human curiosity, we propose goal-literal babbling (GLIB), a simple and general method for exploration in such problems. GLIB samples ...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17400
35
13
11782-11791
official
2001.08299
title_snapshot
10.1609/aaai.v35i13.17401
Robust Finite-State Controllers for Uncertain POMDPs
https://ojs.aaai.org/index.php/AAAI/article/view/17401
https://ojs.aaai.org/index.php/AAAI/article/download/17401/17208
[ "Murat Cubuktepe", "Nils Jansen", "Sebastian Junges", "Ahmadreza Marandi", "Marnix Suilen", "Ufuk Topcu" ]
Uncertain partially observable Markov decision processes (uPOMDPs) allow the probabilistic transition and observation functions of standard POMDPs to belong to a so-called uncertainty set. Such uncertainty, referred to as epistemic uncertainty, captures uncountable sets of probability distributions caused by, for insta...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17401
35
13
11792-11800
official
2009.11459
title_snapshot
10.1609/aaai.v35i13.17402
Learning General Planning Policies from Small Examples Without Supervision
https://ojs.aaai.org/index.php/AAAI/article/view/17402
https://ojs.aaai.org/index.php/AAAI/article/download/17402/17209
[ "Guillem Francès", "Blai Bonet", "Hector Geffner" ]
Generalized planning is concerned with the computation of general policies that solve multiple instances of a planning domain all at once. It has been recently shown that these policies can be computed in two steps: first, a suitable abstraction in the form of a qualitative numerical planning problem (QNP) is learned f...
main
Planning, Routing, and Scheduling
10.1609/aaai.v35i13.17402
35
13
11801-11808
official
2101.00692
title_judge
10.1609/aaai.v35i13.17449
Bounding Causal Effects on Continuous Outcome
https://ojs.aaai.org/index.php/AAAI/article/view/17449
https://ojs.aaai.org/index.php/AAAI/article/download/17449/17256
[ "Junzhe Zhang", "Elias Bareinboim" ]
We investigate the problem of bounding causal effects from experimental studies in which treatment assignment is randomized but the subject compliance is imperfect. It is well known that under such conditions, the actual causal effects are not point-identifiable due to uncontrollable unobserved confounding. In their se...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17449
35
13
12207-12215
official
null
null
10.1609/aaai.v35i13.17448
Polynomial-Time Algorithms for Counting and Sampling Markov Equivalent DAGs
https://ojs.aaai.org/index.php/AAAI/article/view/17448
https://ojs.aaai.org/index.php/AAAI/article/download/17448/17255
[ "Marcel Wienöbst", "Max Bannach", "Maciej Liskiewicz" ]
Counting and uniform sampling of directed acyclic graphs (DAGs) from a Markov equivalence class are fundamental tasks in graphical causal analysis. In this paper, we show that these tasks can be performed in polynomial time, solving a long-standing open problem in this area. Our algorithms are effective and easily impl...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17448
35
13
12198-12206
official
2012.09679
title_snapshot
10.1609/aaai.v35i13.17447
Learning the Parameters of Bayesian Networks from Uncertain Data
https://ojs.aaai.org/index.php/AAAI/article/view/17447
https://ojs.aaai.org/index.php/AAAI/article/download/17447/17254
[ "Segev Wasserkrug", "Radu Marinescu", "Sergey Zeltyn", "Evgeny Shindin", "Yishai A Feldman" ]
The creation of Bayesian networks often requires the specification of a large number of parameters, making it highly desirable to be able to learn these parameters from historical data. In many cases, such data has uncertainty associated with it, including cases in which this data comes from unstructured analysis or fr...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17447
35
13
12190-12197
official
null
null
10.1609/aaai.v35i13.17446
Robust Contextual Bandits via Bootstrapping
https://ojs.aaai.org/index.php/AAAI/article/view/17446
https://ojs.aaai.org/index.php/AAAI/article/download/17446/17253
[ "Qiao Tang", "Hong Xie", "Yunni Xia", "Jia Lee", "Qingsheng Zhu" ]
Upper confidence bound (UCB) based contextual bandit algorithms require one to know the tail property of the reward distribution. Unfortunately, such tail property is usually unknown or difficult to specify in real-world applications. Using a tail property heavier than the ground truth leads to a slow learning speed of...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17446
35
13
12182-12189
official
null
null
10.1609/aaai.v35i13.17445
Probabilistic Dependency Graphs
https://ojs.aaai.org/index.php/AAAI/article/view/17445
https://ojs.aaai.org/index.php/AAAI/article/download/17445/17252
[ "Oliver Richardson", "Joseph Y Halpern" ]
We introduce Probabilistic Dependency Graphs (PDGs), a new class of directed graphical models. PDGs can capture inconsistent beliefs in a natural way and are more modular than Bayesian Networks (BNs), in that they make it easier to incorporate new information and restructure the representation. We show by example how P...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17445
35
13
12174-12181
official
2012.10800
title_snapshot
10.1609/aaai.v35i13.17444
Estimation of Spectral Risk Measures
https://ojs.aaai.org/index.php/AAAI/article/view/17444
https://ojs.aaai.org/index.php/AAAI/article/download/17444/17251
[ "Ajay Kumar Pandey", "Prashanth L.A.", "Sanjay P. Bhat" ]
We consider the problem of estimating a spectral risk measure (SRM) from i.i.d. samples, and propose a novel method that is based on numerical integration. We show that our SRM estimate concentrates exponentially, when the underlying distribution has bounded support. Further, we also consider the case when the underlyi...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17444
35
13
12166-12173
official
1912.10398
title_snapshot
10.1609/aaai.v35i13.17443
A New Bounding Scheme for Influence Diagrams
https://ojs.aaai.org/index.php/AAAI/article/view/17443
https://ojs.aaai.org/index.php/AAAI/article/download/17443/17250
[ "Radu Marinescu", "Junkyu Lee", "Rina Dechter" ]
Influence diagrams provide a modeling and inference framework for sequential decision problems, representing the probabilistic knowledge by a Bayesian network and the preferences of an agent by utility functions over the random variables and decision variables. Computing the maximum expected utility (MEU) and the optim...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17443
35
13
12158-12165
official
null
null
10.1609/aaai.v35i13.17440
Instrumental Variable-based Identification for Causal Effects using Covariate Information
https://ojs.aaai.org/index.php/AAAI/article/view/17440
https://ojs.aaai.org/index.php/AAAI/article/download/17440/17247
[ "Yuta Kawakami" ]
This paper deals with the identification problem of causal effects in randomized trials with noncompliance. In this problem, generally, causal effects are not identifiable and thus have been evaluated under some strict assumptions, or through the bounds. Different from existing studies, we propose novel identification ...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17440
35
13
12131-12138
official
null
null
10.1609/aaai.v35i13.17442
Submodel Decomposition Bounds for Influence Diagrams
https://ojs.aaai.org/index.php/AAAI/article/view/17442
https://ojs.aaai.org/index.php/AAAI/article/download/17442/17249
[ "Junkyu Lee", "Radu Marinescu", "Rina Dechter" ]
Influence diagrams (IDs) are graphical models for representing and reasoning with sequential decision-making problems under uncertainty. Limited memory influence diagrams (LIMIDs) model a decision-maker (DM) who forgets the history in the course of making a sequence of decisions. The standard inference task in IDs and ...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17442
35
13
12147-12157
official
null
null
10.1609/aaai.v35i13.17441
Learning Continuous High-Dimensional Models using Mutual Information and Copula Bayesian Networks
https://ojs.aaai.org/index.php/AAAI/article/view/17441
https://ojs.aaai.org/index.php/AAAI/article/download/17441/17248
[ "Marvin Lasserre", "Régis Lebrun", "Pierre-Henri Wuillemin" ]
We propose a new framework to learn non-parametric graphical models from continuous observational data. Our method is based on concepts from information theory in order to discover independences and causality between variables: the conditional and multivariate mutual information (such as \cite{verny2017learning} for di...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17441
35
13
12139-12146
official
null
null
10.1609/aaai.v35i13.17431
Group Fairness by Probabilistic Modeling with Latent Fair Decisions
https://ojs.aaai.org/index.php/AAAI/article/view/17431
https://ojs.aaai.org/index.php/AAAI/article/download/17431/17238
[ "YooJung Choi", "Meihua Dang", "Guy Van den Broeck" ]
Machine learning systems are increasingly being used to make impactful decisions such as loan applications and criminal justice risk assessments, and as such, ensuring fairness of these systems is critical. This is often challenging as the labels in the data are biased. This paper studies learning fair probability dist...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17431
35
13
12051-12059
official
2009.09031
title_snapshot
10.1609/aaai.v35i13.17439
Relational Boosted Bandits
https://ojs.aaai.org/index.php/AAAI/article/view/17439
https://ojs.aaai.org/index.php/AAAI/article/download/17439/17246
[ "Ashutosh Kakadiya", "Sriraam Natarajan", "Balaraman Ravindran" ]
Contextual bandits algorithms have become essential in real-world user interaction problems in recent years. However, these algorithms represent context as attribute value representation, which makes them infeasible for real world domains like social networks, which are inherently relational. We propose Relational Boos...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17439
35
13
12123-12130
official
2012.09220
title_snapshot
10.1609/aaai.v35i13.17438
Estimating Identifiable Causal Effects through Double Machine Learning
https://ojs.aaai.org/index.php/AAAI/article/view/17438
https://ojs.aaai.org/index.php/AAAI/article/download/17438/17245
[ "Yonghan Jung", "Jin Tian", "Elias Bareinboim" ]
Identifying causal effects from observational data is a pervasive challenge found throughout the empirical sciences. Very general methods have been developed to decide the identifiability of a causal quantity from a combination of observational data and causal knowledge about the underlying system. In practice, however...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17438
35
13
12113-12122
official
null
null
10.1609/aaai.v35i13.17437
A Generative Adversarial Framework for Bounding Confounded Causal Effects
https://ojs.aaai.org/index.php/AAAI/article/view/17437
https://ojs.aaai.org/index.php/AAAI/article/download/17437/17244
[ "Yaowei Hu", "Yongkai Wu", "Lu Zhang", "Xintao Wu" ]
Causal inference from observational data is receiving wide applications in many fields. However, unidentifiable situations, where causal effects cannot be uniquely computed from observational data, pose critical barriers to applying causal inference to complicated real applications. In this paper, we develop a bounding...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17437
35
13
12104-12112
official
null
null
10.1609/aaai.v35i13.17436
High Dimensional Level Set Estimation with Bayesian Neural Network
https://ojs.aaai.org/index.php/AAAI/article/view/17436
https://ojs.aaai.org/index.php/AAAI/article/download/17436/17243
[ "Huong Ha", "Sunil Gupta", "Santu Rana", "Svetha Venkatesh" ]
Level Set Estimation (LSE) is an important problem with applications in various fields such as material design, biotechnology, machine operational testing, etc. Existing techniques suffer from the scalability issue, that is, these methods do not work well with high dimensional inputs. This paper proposes novel methods ...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17436
35
13
12095-12103
official
2012.09973
title_snapshot
10.1609/aaai.v35i13.17435
Scalable First-Order Methods for Robust MDPs
https://ojs.aaai.org/index.php/AAAI/article/view/17435
https://ojs.aaai.org/index.php/AAAI/article/download/17435/17242
[ "Julien Grand-Clément", "Christian Kroer" ]
Robust Markov Decision Processes (MDPs) are a powerful framework for modeling sequential decision making problems with model uncertainty. This paper proposes the first first-order framework for solving robust MDPs. Our algorithm interleaves primal-dual first-order updates with approximate Value Iteration updates. By ca...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17435
35
13
12086-12094
official
2005.05434
title_snapshot
10.1609/aaai.v35i13.17434
Uncertainty Quantification in CNN Through the Bootstrap of Convex Neural Networks
https://ojs.aaai.org/index.php/AAAI/article/view/17434
https://ojs.aaai.org/index.php/AAAI/article/download/17434/17241
[ "Hongfei Du", "Emre Barut", "Fang Jin" ]
Despite the popularity of Convolutional Neural Networks (CNN), the problem of uncertainty quantification (UQ) of CNN has been largely overlooked. Lack of efficient UQ tools severely limits the application of CNN in certain areas, such as medicine, where prediction uncertainty is critically important. Among the few exis...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17434
35
13
12078-12085
official
2604.11833
title_snapshot
10.1609/aaai.v35i13.17433
Better Bounds on the Adaptivity Gap of Influence Maximization under Full-adoption Feedback
https://ojs.aaai.org/index.php/AAAI/article/view/17433
https://ojs.aaai.org/index.php/AAAI/article/download/17433/17240
[ "Gianlorenzo D'Angelo", "Debashmita Poddar", "Cosimo Vinci" ]
In the influence maximization (IM) problem, we are given a social network and a budget k, and we look for a set of k nodes in the network, called seeds, that maximize the expected number of nodes that are reached by an influence cascade generated by the seeds, according to some stochastic model for influence diffusion....
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17433
35
13
12069-12077
official
2006.15374
title_snapshot
10.1609/aaai.v35i13.17432
GO Hessian for Expectation-Based Objectives
https://ojs.aaai.org/index.php/AAAI/article/view/17432
https://ojs.aaai.org/index.php/AAAI/article/download/17432/17239
[ "Yulai Cong", "Miaoyun Zhao", "Jianqiao Li", "Junya Chen", "Lawrence Carin" ]
An unbiased low-variance gradient estimator, termed GO gradient, was proposed recently for expectation-based objectives E_q_γ(y) [f(y)], where the random variable (RV) y may be drawn from a stochastic computation graph (SCG) with continuous (non-reparameterizable) internal nodes and continuous/discrete leaves. Based on...
main
Reasoning under Uncertainty
10.1609/aaai.v35i13.17432
35
13
12060-12068
official
2006.08873
title_snapshot
10.1609/aaai.v35i14.17464
Enhancing Balanced Graph Edge Partition with Effective Local Search
https://ojs.aaai.org/index.php/AAAI/article/view/17464
https://ojs.aaai.org/index.php/AAAI/article/download/17464/17271
[ "Zhenyu Guo", "Mingyu Xiao", "Yi Zhou", "Dongxiang Zhang", "Kian-Lee Tan" ]
Graph partition is a key component to achieve workload balance and reduce job completion time in parallel graph processing systems. Among the various partition strategies, edge partition has demonstrated more promising performance in power-law graphs than vertex partition and thereby has been more widely adopted as the...
main
Search and Optimization
10.1609/aaai.v35i14.17464
35
14
12336-12343
official
2012.09451
title_snapshot
10.1609/aaai.v35i14.17477
Improving Maximum k-plex Solver via Second-Order Reduction and Graph Color Bounding
https://ojs.aaai.org/index.php/AAAI/article/view/17477
https://ojs.aaai.org/index.php/AAAI/article/download/17477/17284
[ "Yi Zhou", "Shan Hu", "Mingyu Xiao", "Zhang-Hua Fu" ]
In a graph, a k-plex is a vertex set in which every vertex is not adjacent to at most k vertices of this set. The maximum k-plex problem, which asks for the largest k-plex from the given graph, is a key primitive in a variety of real-world applications like community detection and so on. In the paper, we develop an exa...
main
Search and Optimization
10.1609/aaai.v35i14.17477
35
14
12453-12460
official
null
null
10.1609/aaai.v35i14.17476
Combining Reinforcement Learning with Lin-Kernighan-Helsgaun Algorithm for the Traveling Salesman Problem
https://ojs.aaai.org/index.php/AAAI/article/view/17476
https://ojs.aaai.org/index.php/AAAI/article/download/17476/17283
[ "Jiongzhi Zheng", "Kun He", "Jianrong Zhou", "Yan Jin", "Chu-Min Li" ]
We address the Traveling Salesman Problem (TSP), a famous NP-hard combinatorial optimization problem. And we propose a variable strategy reinforced approach, denoted as VSR-LKH, which combines three reinforcement learning methods (Q-learning, Sarsa and Monte Carlo) with the well-known TSP algorithm, called Lin-Kernigha...
main
Search and Optimization
10.1609/aaai.v35i14.17476
35
14
12445-12452
official
2012.04461
title_snapshot
10.1609/aaai.v35i14.17475
Accelerated Combinatorial Search for Outlier Detection with Provable Bound on Sub-Optimality
https://ojs.aaai.org/index.php/AAAI/article/view/17475
https://ojs.aaai.org/index.php/AAAI/article/download/17475/17282
[ "Guihong Wan", "Haim Schweitzer" ]
Outliers negatively affect the accuracy of data analysis. In this paper we are concerned with their influence on the accuracy of Principal Component Analysis (PCA). Algorithms that attempt to detect outliers and remove them from the data prior to applying PCA are sometimes called Robust PCA, or Robust Subspace Recovery...
main
Search and Optimization
10.1609/aaai.v35i14.17475
35
14
12436-12444
official
null
null
10.1609/aaai.v35i14.17474
Learning Branching Heuristics for Propositional Model Counting
https://ojs.aaai.org/index.php/AAAI/article/view/17474
https://ojs.aaai.org/index.php/AAAI/article/download/17474/17281
[ "Pashootan Vaezipoor", "Gil Lederman", "Yuhuai Wu", "Chris Maddison", "Roger B Grosse", "Sanjit A. Seshia", "Fahiem Bacchus" ]
Propositional model counting, or #SAT, is the problem of computing the number of satisfying assignments of a Boolean formula. Many problems from different application areas, including many discrete probabilistic inference problems, can be translated into model counting problems to be solved by #SAT solvers. Exact #SAT ...
main
Search and Optimization
10.1609/aaai.v35i14.17474
35
14
12427-12435
official
2007.03204
title_snapshot
10.1609/aaai.v35i14.17473
Bayes DistNet - A Robust Neural Network for Algorithm Runtime Distribution Predictions
https://ojs.aaai.org/index.php/AAAI/article/view/17473
https://ojs.aaai.org/index.php/AAAI/article/download/17473/17280
[ "Jake Tuero", "Michael Buro" ]
Randomized algorithms are used in many state-of-the-art solvers for constraint satisfaction problems (CSP) and Boolean satisfiability (SAT) problems. For many of these problems, there is no single solver which will dominate others. Having access to the underlying runtime distributions (RTD) of these solvers can allow f...
main
Search and Optimization
10.1609/aaai.v35i14.17473
35
14
12418-12426
official
2012.07197
title_snapshot
10.1609/aaai.v35i14.17472
Multi-Goal Multi-Agent Path Finding via Decoupled and Integrated Goal Vertex Ordering
https://ojs.aaai.org/index.php/AAAI/article/view/17472
https://ojs.aaai.org/index.php/AAAI/article/download/17472/17279
[ "Pavel Surynek" ]
We introduce multi-goal multi agent path finding (MG-MAPF) which generalizes the standard discrete multi-agent path finding (MAPF) problem. While the task in MAPF is to navigate agents in an undirected graph from their starting vertices to one individual goal vertex per agent, MG-MAPF assigns each agent multiple goal v...
main
Search and Optimization
10.1609/aaai.v35i14.17472
35
14
12409-12417
official
2009.05161
title_snapshot
10.1609/aaai.v35i14.17471
Weighting-based Variable Neighborhood Search for Optimal Camera Placement
https://ojs.aaai.org/index.php/AAAI/article/view/17471
https://ojs.aaai.org/index.php/AAAI/article/download/17471/17278
[ "Zhouxing Su", "Qingyun Zhang", "Zhipeng Lü", "Chu-Min Li", "Weibo Lin", "Fuda Ma" ]
The optimal camera placement problem (OCP) aims to accomplish surveillance tasks with the minimum number of cameras, which is one of the topics in the GECCO 2020 Competition and can be modeled as the unicost set covering problem (USCP). This paper presents a weighting-based variable neighborhood search (WVNS) algorithm...
main
Search and Optimization
10.1609/aaai.v35i14.17471
35
14
12400-12408
official
null
null
10.1609/aaai.v35i14.17470
Deep Innovation Protection: Confronting the Credit Assignment Problem in Training Heterogeneous Neural Architectures
https://ojs.aaai.org/index.php/AAAI/article/view/17470
https://ojs.aaai.org/index.php/AAAI/article/download/17470/17277
[ "Sebastian Risi", "Kenneth O. Stanley" ]
Deep reinforcement learning approaches have shown impressive results in a variety of different domains, however, more complex heterogeneous architectures such as world models require the different neural components to be trained separately instead of end-to-end. While a simple genetic algorithm recently showed end-to-e...
main
Search and Optimization
10.1609/aaai.v35i14.17470
35
14
12391-12399
official
2001.01683
title_snapshot
10.1609/aaai.v35i14.17469
Policy-Guided Heuristic Search with Guarantees
https://ojs.aaai.org/index.php/AAAI/article/view/17469
https://ojs.aaai.org/index.php/AAAI/article/download/17469/17276
[ "Laurent Orseau", "Levi H. S. Lelis" ]
The use of a policy and a heuristic function for guiding search can be quite effective in adversarial problems, as demonstrated by AlphaGo and its successors, which are based on the PUCT search algorithm. While PUCT can also be used to solve single-agent deterministic problems, it lacks guarantees on its search effort ...
main
Search and Optimization
10.1609/aaai.v35i14.17469
35
14
12382-12390
official
2103.11505
title_snapshot
10.1609/aaai.v35i14.17468
Single Player Monte-Carlo Tree Search Based on the Plackett-Luce Model
https://ojs.aaai.org/index.php/AAAI/article/view/17468
https://ojs.aaai.org/index.php/AAAI/article/download/17468/17275
[ "Felix Mohr", "Viktor Bengs", "Eyke Hüllermeier" ]
The problem of minimal cost path search is especially difficult when no useful heuristics are available. A common solution is roll-out-based search like Monte Carlo Tree Search (MCTS). However, MCTS is mostly used in stochastic or adversarial environments, with the goal to identify an agent's best next move. For this r...
main
Search and Optimization
10.1609/aaai.v35i14.17468
35
14
12373-12381
official
null
null
10.1609/aaai.v35i14.17467
Correlation-Aware Heuristic Search for Intelligent Virtual Machine Provisioning in Cloud Systems
https://ojs.aaai.org/index.php/AAAI/article/view/17467
https://ojs.aaai.org/index.php/AAAI/article/download/17467/17274
[ "Chuan Luo", "Bo Qiao", "Wenqian Xing", "Xin Chen", "Pu Zhao", "Chao Du", "Randolph Yao", "Hongyu Zhang", "Wei Wu", "Shaowei Cai", "Bing He", "Saravanakumar Rajmohan", "Qingwei Lin" ]
The optimization of resource is crucial for the operation of public cloud systems such as Microsoft Azure, as well as servers dedicated to the workloads of large customers such as Microsoft 365. Those optimization tasks often need to take unknown parameters into consideration and can be formulated as Prediction+Optimiz...
main
Search and Optimization
10.1609/aaai.v35i14.17467
35
14
12363-12372
official
null
null
10.1609/aaai.v35i14.17466
EECBS: A Bounded-Suboptimal Search for Multi-Agent Path Finding
https://ojs.aaai.org/index.php/AAAI/article/view/17466
https://ojs.aaai.org/index.php/AAAI/article/download/17466/17273
[ "Jiaoyang Li", "Wheeler Ruml", "Sven Koenig" ]
Multi-Agent Path Finding (MAPF), i.e., finding collision-free paths for multiple robots, is important for many applications where small runtimes are necessary, including the kind of automated warehouses operated by Amazon. CBS is a leading two-level search algorithm for solving MAPF optimally. ECBS is a bounded-subopti...
main
Search and Optimization
10.1609/aaai.v35i14.17466
35
14
12353-12362
official
2010.01367
title_snapshot
10.1609/aaai.v35i14.17465
Submodular Span, with Applications to Conditional Data Summarization
https://ojs.aaai.org/index.php/AAAI/article/view/17465
https://ojs.aaai.org/index.php/AAAI/article/download/17465/17272
[ "Lilly Kumari", "Jeff Bilmes" ]
As an extension to the matroid span problem, we propose the submodular span problem that involves finding a large set of elements with small gain relative to a given query set. We then propose a two-stage Submodular Span Summarization (S3) framework to achieve a form of conditional or query-focused data summarization. ...
main
Search and Optimization
10.1609/aaai.v35i14.17465
35
14
12344-12352
official
null
null
10.1609/aaai.v35i14.17463
Efficient Bayesian Network Structure Learning via Parameterized Local Search on Topological Orderings
https://ojs.aaai.org/index.php/AAAI/article/view/17463
https://ojs.aaai.org/index.php/AAAI/article/download/17463/17270
[ "Niels Grüttemeier", "Christian Komusiewicz", "Nils Morawietz" ]
In Bayesian Network Structure Learning (BNSL), we are given a variable set and parent scores for each variable and aim to compute a DAG, called Bayesian network, that maximizes the sum of parent scores, possibly under some structural constraints. Even very restricted special cases of BNSL are computationally hard, and,...
main
Search and Optimization
10.1609/aaai.v35i14.17463
35
14
12328-12335
official
2204.02902
title_snapshot
10.1609/aaai.v35i14.17450
A Fast Exact Algorithm for the Resource Constrained Shortest Path Problem
https://ojs.aaai.org/index.php/AAAI/article/view/17450
https://ojs.aaai.org/index.php/AAAI/article/download/17450/17257
[ "Saman Ahmadi", "Guido Tack", "Daniel D. Harabor", "Philip Kilby" ]
Resource constrained path finding is a well studied topic in AI, with real-world applications in different areas such as transportation and robotics. This paper introduces several heuristics in the resource constrained path finding context that significantly improve the algorithmic performance of the initialisation pha...
main
Search and Optimization
10.1609/aaai.v35i14.17450
35
14
12217-12224
official
null
null
10.1609/aaai.v35i14.17462
OpEvo: An Evolutionary Method for Tensor Operator Optimization
https://ojs.aaai.org/index.php/AAAI/article/view/17462
https://ojs.aaai.org/index.php/AAAI/article/download/17462/17269
[ "Xiaotian Gao", "Wei Cui", "Lintao Zhang", "Mao Yang" ]
Training and inference efficiency of deep neural networks highly rely on the performance of tensor operators on hardware platforms. Manually optimizing tensor operators has limitations in terms of supporting new operators or hardware platforms. Therefore, automatically optimizing device code configurations of tensor op...
main
Search and Optimization
10.1609/aaai.v35i14.17462
35
14
12320-12327
official
2006.05664
title_snapshot
10.1609/aaai.v35i14.17461
Choosing the Initial State for Online Replanning
https://ojs.aaai.org/index.php/AAAI/article/view/17461
https://ojs.aaai.org/index.php/AAAI/article/download/17461/17268
[ "Maximilian Fickert", "Ivan Gavran", "Ivan Fedotov", "Jörg Hoffmann", "Rupak Majumdar", "Wheeler Ruml" ]
The need to replan arises in many applications. However, in the context of planning as heuristic search, it raises an annoying problem: if the previous plan is still executing, what should the new plan search take as its initial state? If it were possible to accurately predict how long replanning would take, it would b...
main
Search and Optimization
10.1609/aaai.v35i14.17461
35
14
12311-12319
official
null
null
10.1609/aaai.v35i14.17460
Multi-Objective Submodular Maximization by Regret Ratio Minimization with Theoretical Guarantee
https://ojs.aaai.org/index.php/AAAI/article/view/17460
https://ojs.aaai.org/index.php/AAAI/article/download/17460/17267
[ "Chao Feng", "Chao Qian" ]
Submodular maximization has attracted much attention due to its wide application and attractive property. Previous works mainly considered one single objective function, while there can be multiple ones in practice. As the objectives are usually conflicting, there exists a set of Pareto optimal solutions, attaining dif...
main
Search and Optimization
10.1609/aaai.v35i14.17460
35
14
12302-12310
official
null
null
10.1609/aaai.v35i14.17459
Theoretical Analyses of Multi-Objective Evolutionary Algorithms on Multi-Modal Objectives
https://ojs.aaai.org/index.php/AAAI/article/view/17459
https://ojs.aaai.org/index.php/AAAI/article/download/17459/17266
[ "Benjamin Doerr", "Weijie Zheng" ]
Previous theory work on multi-objective evolutionary algorithms considers mostly easy problems that are composed of unimodal objectives. This paper takes a first step towards a deeper understanding of how evolutionary algorithms solve multi-modal multi-objective problems. We propose the OneJumpZeroJump problem, a bi-ob...
main
Search and Optimization
10.1609/aaai.v35i14.17459
35
14
12293-12301
official
2012.07231
title_judge
10.1609/aaai.v35i14.17458
Pareto Optimization for Subset Selection with Dynamic Partition Matroid Constraints
https://ojs.aaai.org/index.php/AAAI/article/view/17458
https://ojs.aaai.org/index.php/AAAI/article/download/17458/17265
[ "Anh Viet Do", "Frank Neumann" ]
In this study, we consider the subset selection problems with submodular or monotone discrete objective functions under partition matroid constraints where the thresholds are dynamic. We focus on POMC, a simple Pareto optimization approach that has been shown to be effective on such problems. Our analysis departs from ...
main
Search and Optimization
10.1609/aaai.v35i14.17458
35
14
12284-12292
official
2012.08738
title_snapshot