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541k
2011.08639
Space-time budget allocation policy design for viral marketing
We address formally the problem of opinion dynamics when the agents of a social network (e.g., consumers) are not only influenced by their neighbors but also by an external influential entity referred to as a marketer. The influential entity tries to sway the overall opinion as close as possible to a desired opinion by...
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false
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206,940
1810.09309
Real-time Neural-based Input Method
The input method is an essential service on every mobile and desktop devices that provides text suggestions. It converts sequential keyboard inputs to the characters in its target language, which is indispensable for Japanese and Chinese users. Due to critical resource constraints and limited network bandwidth of the t...
false
false
false
false
false
false
true
false
true
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false
false
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false
false
false
111,032
2312.13127
Pixel-to-Abundance Translation: Conditional Generative Adversarial Networks Based on Patch Transformer for Hyperspectral Unmixing
Spectral unmixing is a significant challenge in hyperspectral image processing. Existing unmixing methods utilize prior knowledge about the abundance distribution to solve the regularization optimization problem, where the difficulty lies in choosing appropriate prior knowledge and solving the complex regularization op...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
417,216
2306.10441
Image Harmonization with Diffusion Model
Image composition in image editing involves merging a foreground image with a background image to create a composite. Inconsistent lighting conditions between the foreground and background often result in unrealistic composites. Image harmonization addresses this challenge by adjusting illumination and color to achieve...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
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374,226
2204.05571
Speech Emotion Recognition with Global-Aware Fusion on Multi-scale Feature Representation
Speech Emotion Recognition (SER) is a fundamental task to predict the emotion label from speech data. Recent works mostly focus on using convolutional neural networks~(CNNs) to learn local attention map on fixed-scale feature representation by viewing time-varied spectral features as images. However, rich emotional fea...
false
false
true
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
291,077
2303.01353
Penalising the biases in norm regularisation enforces sparsity
Controlling the parameters' norm often yields good generalisation when training neural networks. Beyond simple intuitions, the relation between regularising parameters' norm and obtained estimators remains theoretically misunderstood. For one hidden ReLU layer networks with unidimensional data, this work shows the para...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
348,939
1912.07358
Blind Denoising Autoencoder
The term blind denoising refers to the fact that the basis used for denoising is learnt from the noisy sample itself during denoising. Dictionary learning and transform learning based formulations for blind denoising are well known. But there has been no autoencoder based solution for the said blind denoising approach....
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
157,584
2501.13080
Refining Input Guardrails: Enhancing LLM-as-a-Judge Efficiency Through Chain-of-Thought Fine-Tuning and Alignment
Large Language Models (LLMs) have demonstrated powerful capabilities that render them valuable in different applications, including conversational AI products. It is paramount to ensure the security and reliability of these products by mitigating their vulnerabilities towards malicious user interactions, which can lead...
false
false
false
false
false
false
true
false
true
false
false
false
true
false
false
false
false
false
526,549
2206.11254
Langevin Monte Carlo for Contextual Bandits
We study the efficiency of Thompson sampling for contextual bandits. Existing Thompson sampling-based algorithms need to construct a Laplace approximation (i.e., a Gaussian distribution) of the posterior distribution, which is inefficient to sample in high dimensional applications for general covariance matrices. Moreo...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
304,214
2202.04912
Random Forest Weighted Local Fr\'echet Regression with Random Objects
Statistical analysis is increasingly confronted with complex data from metric spaces. Petersen and M\"uller (2019) established a general paradigm of Fr\'echet regression with complex metric space valued responses and Euclidean predictors. However, the local approach therein involves nonparametric kernel smoothing and s...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
279,713
2305.03610
The Role of Data Curation in Image Captioning
Image captioning models are typically trained by treating all samples equally, neglecting to account for mismatched or otherwise difficult data points. In contrast, recent work has shown the effectiveness of training models by scheduling the data using curriculum learning strategies. This paper contributes to this dire...
false
false
false
false
true
false
false
false
true
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false
true
false
false
false
false
false
false
362,455
2309.11445
SkeleTR: Towrads Skeleton-based Action Recognition in the Wild
We present SkeleTR, a new framework for skeleton-based action recognition. In contrast to prior work, which focuses mainly on controlled environments, we target more general scenarios that typically involve a variable number of people and various forms of interaction between people. SkeleTR works with a two-stage parad...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
393,409
2502.13474
Towards Lightweight, Adaptive and Attribute-Aware Multi-Aspect Controllable Text Generation with Large Language Models
Multi-aspect controllable text generation aims to control text generation in attributes from multiple aspects, making it a complex but powerful task in natural language processing. Supervised fine-tuning methods are often employed for this task due to their simplicity and effectiveness. However, they still have some li...
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
535,381
2112.05660
DPU: DAG Processing Unit for Irregular Graphs with Precision-Scalable Posit Arithmetic in 28nm
Computation in several real-world applications like probabilistic machine learning, sparse linear algebra, and robotic navigation, can be modeled as irregular directed acyclic graphs (DAGs). The irregular data dependencies in DAGs pose challenges to parallel execution on general-purpose CPUs and GPUs, resulting in seve...
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
true
270,914
2411.08253
Open-World Task and Motion Planning via Vision-Language Model Inferred Constraints
Foundation models trained on internet-scale data, such as Vision-Language Models (VLMs), excel at performing tasks involving common sense, such as visual question answering. Despite their impressive capabilities, these models cannot currently be directly applied to challenging robot manipulation problems that require c...
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
507,820
2104.06650
Learning Semantic Person Image Generation by Region-Adaptive Normalization
Human pose transfer has received great attention due to its wide applications, yet is still a challenging task that is not well solved. Recent works have achieved great success to transfer the person image from the source to the target pose. However, most of them cannot well capture the semantic appearance, resulting i...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
230,147
2403.06705
Multimodal Transformers for Real-Time Surgical Activity Prediction
Real-time recognition and prediction of surgical activities are fundamental to advancing safety and autonomy in robot-assisted surgery. This paper presents a multimodal transformer architecture for real-time recognition and prediction of surgical gestures and trajectories based on short segments of kinematic and video ...
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
436,571
2407.11788
Learning feasible transitions for efficient contact planning
In this paper, we propose an efficient contact planner for quadrupedal robots to navigate in extremely constrained environments such as stepping stones. The main difficulty in this setting stems from the mixed nature of the problem, namely discrete search over the steppable patches and continuous trajectory optimizatio...
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
473,620
1801.06761
PU-Net: Point Cloud Upsampling Network
Learning and analyzing 3D point clouds with deep networks is challenging due to the sparseness and irregularity of the data. In this paper, we present a data-driven point cloud upsampling technique. The key idea is to learn multi-level features per point and expand the point set via a multi-branch convolution unit impl...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
true
88,668
1904.07442
Decoupling Localization and Classification in Single Shot Temporal Action Detection
Video temporal action detection aims to temporally localize and recognize the action in untrimmed videos. Existing one-stage approaches mostly focus on unifying two subtasks, i.e., localization of action proposals and classification of each proposal through a fully shared backbone. However, such design of encapsulating...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
127,795
2410.17770
Small Singular Values Matter: A Random Matrix Analysis of Transformer Models
As large language models (LLMs) become increasingly central to AI applications, understanding their inner workings is essential. In this work, we analyze the spectra of weight matrices in pretrained transformer models through the lens of random matrix theory (RMT) to uncover learned structures. We find that certain reg...
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
false
501,608
2208.03561
Study of detecting behavioral signatures within DeepFake videos
There is strong interest in the generation of synthetic video imagery of people talking for various purposes, including entertainment, communication, training, and advertisement. With the development of deep fake generation models, synthetic video imagery will soon be visually indistinguishable to the naked eye from a ...
false
false
false
false
true
false
false
false
false
false
false
true
false
false
false
false
false
false
311,822
2212.00268
Gaussian Process Barrier States for Safe Trajectory Optimization and Control
This paper proposes embedded Gaussian Process Barrier States (GP-BaS), a methodology to safely control unmodeled dynamics of nonlinear system using Bayesian learning. Gaussian Processes (GPs) are used to model the dynamics of the safety-critical system, which is subsequently used in the GP-BaS model. We derive the barr...
false
false
false
false
false
false
false
true
false
false
true
false
false
false
false
false
false
false
333,997
1810.05045
Analysis of Noisy Evolutionary Optimization When Sampling Fails
In noisy evolutionary optimization, sampling is a common strategy to deal with noise. By the sampling strategy, the fitness of a solution is evaluated multiple times (called \emph{sample size}) independently, and its true fitness is then approximated by the average of these evaluations. Most previous studies on samplin...
false
false
false
false
false
false
false
false
false
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false
false
false
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false
true
false
false
110,155
1907.02648
What is the Benefit of Code-domain NOMA in Massive MIMO?
In overloaded Massive MIMO systems, wherein the number K of user equipments (UEs) exceeds the number of base station antennas M, it has recently been shown that non-orthogonal multiple access (NOMA) can increase performance. This paper aims at identifying cases of the classical operating regime K < M, where code-domain...
false
false
false
false
false
false
false
false
false
true
false
false
false
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false
false
false
137,653
2103.04231
Quantum interpolating ensemble: Biorthogonal polynomials and average entropies
The density matrix formalism is a fundamental tool in studying various problems in quantum information processing. In the space of density matrices, the most well-known measures are the Hilbert-Schmidt and Bures-Hall ensembles. In this work, the averages of quantum purity and von Neumann entropy for an ensemble that in...
false
false
false
false
false
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false
false
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true
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false
false
223,563
1404.2071
Extracting a bilingual semantic grammar from FrameNet-annotated corpora
We present the creation of an English-Swedish FrameNet-based grammar in Grammatical Framework. The aim of this research is to make existing framenets computationally accessible for multilingual natural language applications via a common semantic grammar API, and to facilitate the porting of such grammar to other langua...
false
false
false
false
false
false
false
false
true
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false
false
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32,174
2409.17550
A Simple but Strong Baseline for Sounding Video Generation: Effective Adaptation of Audio and Video Diffusion Models for Joint Generation
In this work, we build a simple but strong baseline for sounding video generation. Given base diffusion models for audio and video, we integrate them with additional modules into a single model and train it to make the model jointly generate audio and video. To enhance alignment between audio-video pairs, we introduce ...
false
false
true
false
false
false
true
false
false
false
false
false
false
false
false
false
false
true
491,862
2408.12133
Self-supervised Learning for Geospatial AI: A Survey
The proliferation of geospatial data in urban and territorial environments has significantly facilitated the development of geospatial artificial intelligence (GeoAI) across various urban applications. Given the vast yet inherently sparse labeled nature of geospatial data, there is a critical need for techniques that c...
false
false
false
false
true
false
true
false
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false
false
false
false
false
false
482,604
1608.04694
Accelerating scientific codes by performance and accuracy modeling
Scientific software is often driven by multiple parameters that affect both accuracy and performance. Since finding the optimal configuration of these parameters is a highly complex task, it extremely common that the software is used suboptimally. In a typical scenario, accuracy requirements are imposed, and attained t...
false
true
false
false
false
false
false
false
false
false
false
false
false
false
false
false
false
false
59,871
2208.04190
SA-NET.v2: Real-time vehicle detection from oblique UAV images with use of uncertainty estimation in deep meta-learning
In recent years, unmanned aerial vehicle (UAV) imaging is a suitable solution for real-time monitoring different vehicles on the urban scale. Real-time vehicle detection with the use of uncertainty estimation in deep meta-learning for the portable platforms (e.g., UAV) potentially improves video understanding in real-w...
false
false
false
false
false
false
true
false
false
false
false
true
false
false
false
false
false
false
312,023
1508.07433
A General MIMO Framework for NOMA Downlink and Uplink Transmission Based on Signal Alignment
The application of multiple-input multiple-output (MIMO) techniques to non-orthogonal multiple access (NOMA) systems is important to enhance the performance gains of NOMA. In this paper, a novel MIMO-NOMA framework for downlink and uplink transmission is proposed by applying the concept of signal alignment. By using st...
false
false
false
false
false
false
false
false
false
true
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false
false
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false
false
46,403
2310.11282
ChapGTP, ILLC's Attempt at Raising a BabyLM: Improving Data Efficiency by Automatic Task Formation
We present the submission of the ILLC at the University of Amsterdam to the BabyLM challenge (Warstadt et al., 2023), in the strict-small track. Our final model, ChapGTP, is a masked language model that was trained for 200 epochs, aided by a novel data augmentation technique called Automatic Task Formation. We discuss ...
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
400,584
2406.02506
An Open-Source Tool for Mapping War Destruction at Scale in Ukraine using Sentinel-1 Time Series
Access to detailed war impact assessments is crucial for humanitarian organizations to assist affected populations effectively. However, maintaining a comprehensive understanding of the situation on the ground is challenging, especially in widespread and prolonged conflicts. Here we present a scalable method for estima...
false
false
false
false
false
false
false
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true
false
false
false
false
false
false
460,796
1705.00487
Generalized orderless pooling performs implicit salient matching
Most recent CNN architectures use average pooling as a final feature encoding step. In the field of fine-grained recognition, however, recent global representations like bilinear pooling offer improved performance. In this paper, we generalize average and bilinear pooling to "alpha-pooling", allowing for learning the p...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
72,692
2310.12556
An Efficient Algorithm for Counting Cycles in QC and APM LDPC Codes
In this paper, a new method is given for counting cycles in the Tanner graph of a (Type-I) quasi-cyclic (QC) low-density parity-check (LDPC) code which the complexity mainly is dependent on the base matrix, independent from the CPM-size of the constructed code. Interestingly, for large CPM-sizes, in comparison of the e...
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
401,067
2403.05801
Enhancing Multi-Hop Knowledge Graph Reasoning through Reward Shaping Techniques
In the realm of computational knowledge representation, Knowledge Graph Reasoning (KG-R) stands at the forefront of facilitating sophisticated inferential capabilities across multifarious domains. The quintessence of this research elucidates the employment of reinforcement learning (RL) strategies, notably the REINFORC...
false
false
false
false
true
false
false
false
false
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false
false
false
false
false
false
false
false
436,162
1507.01728
Equidistant subspace codes
In this paper we study equidistant subspace codes, i.e. subspace codes with the property that each two distinct codewords have the same distance. We provide an almost complete classification of such codes under the assumption that the cardinality of the ground field is large enough. More precisely, we prove that for mo...
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
44,900
2210.00221
Motion-inductive Self-supervised Object Discovery in Videos
In this paper, we consider the task of unsupervised object discovery in videos. Previous works have shown promising results via processing optical flows to segment objects. However, taking flow as input brings about two drawbacks. First, flow cannot capture sufficient cues when objects remain static or partially occlud...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
320,787
2407.08939
LightenDiffusion: Unsupervised Low-Light Image Enhancement with Latent-Retinex Diffusion Models
In this paper, we propose a diffusion-based unsupervised framework that incorporates physically explainable Retinex theory with diffusion models for low-light image enhancement, named LightenDiffusion. Specifically, we present a content-transfer decomposition network that performs Retinex decomposition within the laten...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
472,367
2406.01275
Lifting Factor Graphs with Some Unknown Factors
Lifting exploits symmetries in probabilistic graphical models by using a representative for indistinguishable objects, allowing to carry out query answering more efficiently while maintaining exact answers. In this paper, we investigate how lifting enables us to perform probabilistic inference for factor graphs contain...
false
false
false
false
true
false
true
false
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false
false
false
false
false
false
false
false
460,244
2401.09775
Controllable Decontextualization of Yes/No Question and Answers into Factual Statements
Yes/No or polar questions represent one of the main linguistic question categories. They consist of a main interrogative clause, for which the answer is binary (assertion or negation). Polar questions and answers (PQA) represent a valuable knowledge resource present in many community and other curated QA sources, such ...
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
422,381
2210.16118
Imitation Learning-based Implicit Semantic-aware Communication Networks: Multi-layer Representation and Collaborative Reasoning
Semantic communication has recently attracted significant interest from both industry and academia due to its potential to transform the existing data-focused communication architecture towards a more generally intelligent and goal-oriented semantic-aware networking system. Despite its promising potential, semantic com...
false
false
false
false
true
false
false
false
false
true
false
false
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false
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false
false
true
327,231
2007.01272
RELATE: Physically Plausible Multi-Object Scene Synthesis Using Structured Latent Spaces
We present RELATE, a model that learns to generate physically plausible scenes and videos of multiple interacting objects. Similar to other generative approaches, RELATE is trained end-to-end on raw, unlabeled data. RELATE combines an object-centric GAN formulation with a model that explicitly accounts for correlations...
false
false
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
185,378
1104.0992
On the Degrees of Freedom Achievable Through Interference Alignment in a MIMO Interference Channel
Consider a K-user flat fading MIMO interference channel where the k-th transmitter (or receiver) is equipped with M_k (respectively N_k) antennas. If a large number of statistically independent channel extensions are allowed either across time or frequency, the recent work [1] suggests that the total achievable degrees...
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
9,885
1706.01513
Beyond Volume: The Impact of Complex Healthcare Data on the Machine Learning Pipeline
From medical charts to national census, healthcare has traditionally operated under a paper-based paradigm. However, the past decade has marked a long and arduous transformation bringing healthcare into the digital age. Ranging from electronic health records, to digitized imaging and laboratory reports, to public healt...
false
false
false
false
false
false
true
false
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false
false
74,813
1408.2359
Gap-weighted subsequences for automatic cognate identification and phylogenetic inference
In this paper, we describe the problem of cognate identification and its relation to phylogenetic inference. We introduce subsequence based features for discriminating cognates from non-cognates. We show that subsequence based features perform better than the state-of-the-art string similarity measures for the purpose ...
false
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false
false
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false
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true
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false
false
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false
false
false
false
35,292
2203.08213
HUMUS-Net: Hybrid unrolled multi-scale network architecture for accelerated MRI reconstruction
In accelerated MRI reconstruction, the anatomy of a patient is recovered from a set of under-sampled and noisy measurements. Deep learning approaches have been proven to be successful in solving this ill-posed inverse problem and are capable of producing very high quality reconstructions. However, current architectures...
false
false
false
false
false
false
true
false
false
false
false
true
false
false
false
false
false
false
285,711
2408.05764
A robust baro-radar-inertial odometry m-estimator for multicopter navigation in cities and forests
Search and rescue operations require mobile robots to navigate unstructured indoor and outdoor environments. In particular, actively stabilized multirotor drones need precise movement data to balance and avoid obstacles. Combining radial velocities from on-chip radar with MEMS inertial sensing has proven to provide rob...
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
false
false
479,926
1901.00952
Space Expansion of Feature Selection for Designing more Accurate Error Predictors
Approximate computing is being considered as a promising design paradigm to overcome the energy and performance challenges in computationally demanding applications. If the case where the accuracy can be configured, the quality level versus energy efficiency or delay also may be traded-off. For this technique to be use...
false
false
false
false
false
false
true
false
false
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false
false
117,886
1610.09638
Hybrid Analog and Digital Precoding: From Practical RF System Models to Information Theoretic Bounds
Hybrid analog-digital precoding is a key millimeter wave access technology, where an antenna array with reduced number of radio frequency (RF) chains is used with an RF precoding matrix to increase antenna gain at a reasonable cost. However, digital and RF precoder algorithms must be accompa- nied by a detailed system ...
false
false
false
false
false
false
false
false
false
true
false
false
false
false
false
false
false
false
63,095
2209.05156
Multiple Control Barrier Functions: An Application to Reactive Obstacle Avoidance for a Multi-steering Tractor-trailer System
Control barrier functions (CBFs) recently introduced a systematic way to guarantee the system's safety through set invariance. Together with a nominal control method, it establishes a safety-critical control mechanism. The resulting safety constraints can be enforced as hard constraints in quadratic programming (QP) op...
false
false
false
false
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true
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false
false
false
317,013
2305.16791
On the Generalization and Approximation Capacities of Neural Controlled Differential Equations
Neural Controlled Differential Equations (NCDEs) are a state-of-the-art tool for supervised learning with irregularly sampled time series (Kidger, 2020). However, no theoretical analysis of their performance has been provided yet, and it remains unclear in particular how the irregularity of the time series affects thei...
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368,252
2302.02229
Entanglement capacity of fermionic Gaussian states
We study the capacity of entanglement as an alternative to entanglement entropies in estimating the degree of entanglement of quantum bipartite systems over fermionic Gaussian states. In particular, we derive the exact and asymptotic formulas of average capacity of two different cases - with and without particle number...
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343,912
2201.10436
Safe AI -- How is this Possible?
Ttraditional safety engineering is coming to a turning point moving from deterministic, non-evolving systems operating in well-defined contexts to increasingly autonomous and learning-enabled AI systems which are acting in largely unpredictable operating contexts. We outline some of underlying challenges of safe AI and...
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true
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false
276,993
2006.05826
Transient Non-Stationarity and Generalisation in Deep Reinforcement Learning
Non-stationarity can arise in Reinforcement Learning (RL) even in stationary environments. For example, most RL algorithms collect new data throughout training, using a non-stationary behaviour policy. Due to the transience of this non-stationarity, it is often not explicitly addressed in deep RL and a single neural ne...
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false
false
false
true
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true
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181,211
2112.04042
Vision-Cloud Data Fusion for ADAS: A Lane Change Prediction Case Study
With the rapid development of intelligent vehicles and Advanced Driver-Assistance Systems (ADAS), a new trend is that mixed levels of human driver engagements will be involved in the transportation system. Therefore, necessary visual guidance for drivers is vitally important under this situation to prevent potential ri...
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false
false
false
false
false
true
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true
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270,403
2002.05227
Variational Autoencoders with Riemannian Brownian Motion Priors
Variational Autoencoders (VAEs) represent the given data in a low-dimensional latent space, which is generally assumed to be Euclidean. This assumption naturally leads to the common choice of a standard Gaussian prior over continuous latent variables. Recent work has, however, shown that this prior has a detrimental ef...
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163,834
2010.11807
Validation of non-negative matrix factorization for assessment of atomic pair-distribution function (PDF) data in a real-time streaming context
We validate the use of matrix factorization for the automatic identification of relevant components from atomic pair distribution function (PDF) data. We also present a newly developed software infrastructure for analyzing the PDF data arriving in streaming manner. We then apply two matrix factorization techniques, Pri...
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202,435
1903.09847
Monocular 3D Object Detection with Pseudo-LiDAR Point Cloud
Monocular 3D scene understanding tasks, such as object size estimation, heading angle estimation and 3D localization, is challenging. Successful modern day methods for 3D scene understanding require the use of a 3D sensor. On the other hand, single image based methods have significantly worse performance. In this work,...
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125,149
1803.04651
Compressive Sensing Based User Clustering for Downlink NOMA Systems with Decoding Power
This letter investigates joint power control and user clustering for downlink non-orthogonal multiple access systems. Our aim is to minimize the total power consumption by taking into account not only the conventional transmission power but also the decoding power of the users. To solve this optimization problem, it is...
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92,493
2409.16670
GraphLoRA: Structure-Aware Contrastive Low-Rank Adaptation for Cross-Graph Transfer Learning
Graph Neural Networks (GNNs) have demonstrated remarkable proficiency in handling a range of graph analytical tasks across various domains, such as e-commerce and social networks. Despite their versatility, GNNs face significant challenges in transferability, limiting their utility in real-world applications. Existing ...
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false
false
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491,450
1908.07553
Phrase Localization Without Paired Training Examples
Localizing phrases in images is an important part of image understanding and can be useful in many applications that require mappings between textual and visual information. Existing work attempts to learn these mappings from examples of phrase-image region correspondences (strong supervision) or from phrase-image pair...
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false
false
false
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true
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142,312
2411.13072
AMaze: An intuitive benchmark generator for fast prototyping of generalizable agents
Traditional approaches to training agents have generally involved a single, deterministic environment of minimal complexity to solve various tasks such as robot locomotion or computer vision. However, agents trained in static environments lack generalization capabilities, limiting their potential in broader scenarios. ...
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false
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true
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509,666
1804.05259
Intrinsically motivated reinforcement learning for human-robot interaction in the real-world
For a natural social human-robot interaction, it is essential for a robot to learn the human-like social skills. However, learning such skills is notoriously hard due to the limited availability of direct instructions from people to teach a robot. In this paper, we propose an intrinsically motivated reinforcement learn...
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true
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95,028
2207.09350
Riemannian Stochastic Gradient Method for Nested Composition Optimization
This work considers optimization of composition of functions in a nested form over Riemannian manifolds where each function contains an expectation. This type of problems is gaining popularity in applications such as policy evaluation in reinforcement learning or model customization in meta-learning. The standard Riema...
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true
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308,877
1707.05154
Preliminary Exploration of Formula Embedding for Mathematical Information Retrieval: can mathematical formulae be embedded like a natural language?
While neural network approaches are achieving breakthrough performance in the natural language related fields, there have been few similar attempts at mathematical language related tasks. In this study, we explore the potential of applying neural representation techniques to Mathematical Information Retrieval (MIR) tas...
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77,175
1907.03564
Bounded Model Checking of Max-Plus Linear Systems via Predicate Abstractions
This paper introduces the abstraction of max-plus linear (MPL) systems via predicates. Predicates are automatically selected from system matrix, as well as from the specifications under consideration. We focus on verifying time-difference specifications, which encompass the relation between successive events in MPL sys...
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true
137,888
2401.16552
ONDA: ONline Database Architect
Database modeling is a key activity towards the fulfillment of storage requirements. Despite the availability of several database modeling tools for developers, these often come with associated costs, setup complexities, usability challenges, or dependency on specific operating systems. In this paper we present ONDA, a...
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false
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424,871
2208.04803
Exploring the trade off between human driving imitation and safety for traffic simulation
Traffic simulation has gained a lot of interest for quantitative evaluation of self driving vehicles performance. In order for a simulator to be a valuable test bench, it is required that the driving policy animating each traffic agent in the scene acts as humans would do while maintaining minimal safety guarantees. Le...
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false
false
false
false
false
true
true
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false
312,229
1906.07322
Whole-Body Control with (Self) Collision Avoidance using Vector Field Inequalities
This work uses vector field inequalities (VFI) to prevent robot self-collisions and collisions with the workspace. Differently from previous approaches, the method is suitable for both velocity and torque-actuated robots. We propose a new distance function and its corresponding Jacobian in order to generate a VFI to li...
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false
false
false
false
false
false
true
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false
false
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false
135,565
2301.06844
USER: Unified Semantic Enhancement with Momentum Contrast for Image-Text Retrieval
As a fundamental and challenging task in bridging language and vision domains, Image-Text Retrieval (ITR) aims at searching for the target instances that are semantically relevant to the given query from the other modality, and its key challenge is to measure the semantic similarity across different modalities. Althoug...
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false
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340,754
1812.04429
Face-Focused Cross-Stream Network for Deception Detection in Videos
Automated deception detection (ADD) from real-life videos is a challenging task. It specifically needs to address two problems: (1) Both face and body contain useful cues regarding whether a subject is deceptive. How to effectively fuse the two is thus key to the effectiveness of an ADD model. (2) Real-life deceptive s...
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false
false
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116,219
2012.03902
Generative Adversarial User Privacy in Lossy Single-Server Information Retrieval
We propose to extend the concept of private information retrieval by allowing for distortion in the retrieval process and relaxing the perfect privacy requirement at the same time. In particular, we study the trade-off between download rate, distortion, and user privacy leakage, and show that in the limit of large file...
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210,294
2201.07657
Multiblock ADMM for nonsmooth nonconvex optimization with nonlinear coupling constraints
This paper proposes a multiblock alternating direction method of multipliers for solving a class of multiblock nonsmooth nonconvex optimization problem with nonlinear coupling constraints. We employ a majorization minimization procedure in the update of each block of the primal variables. Subsequential and global conve...
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false
false
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false
276,091
2112.13121
The Curse of Zero Task Diversity: On the Failure of Transfer Learning to Outperform MAML and their Empirical Equivalence
Recently, it has been observed that a transfer learning solution might be all we need to solve many few-shot learning benchmarks -- thus raising important questions about when and how meta-learning algorithms should be deployed. In this paper, we seek to clarify these questions by proposing a novel metric -- the divers...
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273,146
2403.17336
Don't Listen To Me: Understanding and Exploring Jailbreak Prompts of Large Language Models
Recent advancements in generative AI have enabled ubiquitous access to large language models (LLMs). Empowered by their exceptional capabilities to understand and generate human-like text, these models are being increasingly integrated into our society. At the same time, there are also concerns on the potential misuse ...
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false
false
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441,416
2406.13744
SRL-VIC: A Variable Stiffness-Based Safe Reinforcement Learning for Contact-Rich Robotic Tasks
Reinforcement learning (RL) has emerged as a promising paradigm in complex and continuous robotic tasks, however, safe exploration has been one of the main challenges, especially in contact-rich manipulation tasks in unstructured environments. Focusing on this issue, we propose SRL-VIC: a model-free safe RL framework c...
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false
false
false
false
false
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true
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465,982
1311.2903
Protocol Design and Stability Analysis of Cooperative Cognitive Radio Users
A single cognitive radio transmitter--receiver pair shares the spectrum with two primary users communicating with their respective receivers. Each primary user has a local traffic queue, whereas the cognitive user has three queues; one storing its own traffic while the other two are relaying queues used to store primar...
false
false
false
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true
28,365
2407.01126
Investigating the potential of Sparse Mixtures-of-Experts for multi-domain neural machine translation
We focus on multi-domain Neural Machine Translation, with the goal of developing efficient models which can handle data from various domains seen during training and are robust to domains unseen during training. We hypothesize that Sparse Mixture-of-Experts (SMoE) models are a good fit for this task, as they enable eff...
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false
false
false
true
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true
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469,164
2405.05369
Model Reconstruction Using Counterfactual Explanations: A Perspective From Polytope Theory
Counterfactual explanations provide ways of achieving a favorable model outcome with minimum input perturbation. However, counterfactual explanations can also be leveraged to reconstruct the model by strategically training a surrogate model to give similar predictions as the original (target) model. In this work, we an...
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false
false
false
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false
452,891
2312.07609
IndoorGNN: A Graph Neural Network based approach for Indoor Localization using WiFi RSSI
Indoor localization is the process of determining the location of a person or object inside a building. Potential usage of indoor localization includes navigation, personalization, safety and security, and asset tracking. Commonly used technologies for indoor localization include WiFi, Bluetooth, RFID, and Ultra-wideba...
false
false
false
false
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true
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414,994
2106.02775
Visual communication of object concepts at different levels of abstraction
People can produce drawings of specific entities (e.g., Garfield), as well as general categories (e.g., "cat"). What explains this ability to produce such varied drawings of even highly familiar object concepts? We hypothesized that drawing objects at different levels of abstraction depends on both sensory information ...
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false
false
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239,017
2408.01050
The Impact of Hyperparameters on Large Language Model Inference Performance: An Evaluation of vLLM and HuggingFace Pipelines
The recent surge of open-source large language models (LLMs) enables developers to create AI-based solutions while maintaining control over aspects such as privacy and compliance, thereby providing governance and ownership of the model deployment process. To utilize these LLMs, inference engines are needed. These engin...
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false
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true
478,082
2412.07509
Enhancing 3D Object Detection in Autonomous Vehicles Based on Synthetic Virtual Environment Analysis
Autonomous Vehicles (AVs) use natural images and videos as input to understand the real world by overlaying and inferring digital elements, facilitating proactive detection in an effort to assure safety. A crucial aspect of this process is real-time, accurate object recognition through automatic scene analysis. While t...
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false
false
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false
515,693
1603.09382
Deep Networks with Stochastic Depth
Very deep convolutional networks with hundreds of layers have led to significant reductions in error on competitive benchmarks. Although the unmatched expressiveness of the many layers can be highly desirable at test time, training very deep networks comes with its own set of challenges. The gradients can vanish, the f...
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false
false
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53,909
1407.2343
Fast Separable Non-Local Means
We propose a simple and fast algorithm called PatchLift for computing distances between patches (contiguous block of samples) extracted from a given one-dimensional signal. PatchLift is based on the observation that the patch distances can be efficiently computed from a matrix that is derived from the one-dimensional s...
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false
34,518
2406.07328
Realistic Data Generation for 6D Pose Estimation of Surgical Instruments
Automation in surgical robotics has the potential to improve patient safety and surgical efficiency, but it is difficult to achieve due to the need for robust perception algorithms. In particular, 6D pose estimation of surgical instruments is critical to enable the automatic execution of surgical maneuvers based on vis...
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false
false
false
false
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true
true
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false
463,001
2210.07760
Lightweight Alpha Matting Network Using Distillation-Based Channel Pruning
Recently, alpha matting has received a lot of attention because of its usefulness in mobile applications such as selfies. Therefore, there has been a demand for a lightweight alpha matting model due to the limited computational resources of commercial portable devices. To this end, we suggest a distillation-based chann...
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323,853
2107.06749
Dynamic Event Camera Calibration
Camera calibration is an important prerequisite towards the solution of 3D computer vision problems. Traditional methods rely on static images of a calibration pattern. This raises interesting challenges towards the practical usage of event cameras, which notably require image change to produce sufficient measurements....
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246,183
1907.10138
Reflective-AR Display: An Interaction Methodology for Virtual-Real Alignment in Medical Robotics
Robot-assisted minimally invasive surgery has shown to improve patient outcomes, as well as reduce complications and recovery time for several clinical applications. While increasingly configurable robotic arms can maximize reach and avoid collisions in cluttered environments, positioning them appropriately during surg...
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false
false
false
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true
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139,544
2203.03606
I-GCN: A Graph Convolutional Network Accelerator with Runtime Locality Enhancement through Islandization
Graph Convolutional Networks (GCNs) have drawn tremendous attention in the past three years. Compared with other deep learning modalities, high-performance hardware acceleration of GCNs is as critical but even more challenging. The hurdles arise from the poor data locality and redundant computation due to the large siz...
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284,154
cmp-lg/9505038
Ubiquitous Talker: Spoken Language Interaction with Real World Objects
Augmented reality is a research area that tries to embody an electronic information space within the real world, through computational devices. A crucial issue within this area, is the recognition of real world objects or situations. In natural language processing, it is much easier to determine interpretations of ut...
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false
false
false
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false
536,397
2406.11443
PrAViC: Probabilistic Adaptation Framework for Real-Time Video Classification
Video processing is generally divided into two main categories: processing of the entire video, which typically yields optimal classification outcomes, and real-time processing, where the objective is to make a decision as promptly as possible. The latter is often driven by the need to identify rapidly potential critic...
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false
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false
464,894
1904.02679
Visualizing Attention in Transformer-Based Language Representation Models
We present an open-source tool for visualizing multi-head self-attention in Transformer-based language representation models. The tool extends earlier work by visualizing attention at three levels of granularity: the attention-head level, the model level, and the neuron level. We describe how each of these views can he...
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126,498
1706.00123
Diversified Top-k Partial MaxSAT Solving
We introduce a diversified top-k partial MaxSAT problem, a combination of partial MaxSAT problem and enumeration problem. Given a partial MaxSAT formula F and a positive integer k, the diversified top-k partial MaxSAT is to find k maximal solutions for F such that the k maximal solutions satisfy the maximum number of s...
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false
false
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74,567
1712.03898
Achieving Maximum Distance Separable Private Information Retrieval Capacity With Linear Codes
We propose three private information retrieval (PIR) protocols for distributed storage systems (DSSs) where data is stored using an arbitrary linear code. The first two protocols, named Protocol 1 and Protocol 2, achieve privacy for the scenario with noncolluding nodes. Protocol 1 requires a file size that is exponenti...
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86,516
2111.02212
Virtual reference feedback tuning with robustness constraints: A swarm intelligence solution
The simplified modeling of a complex system allied with a low-order controller structure can lead to poor closed-loop performance and robustness. A feasible solution is to avoid the necessity of a model by using data for the controller design. The Virtual Reference Feedback Tuning (VRFT) is a data-driven design method ...
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264,803
2406.12536
ViDSOD-100: A New Dataset and a Baseline Model for RGB-D Video Salient Object Detection
With the rapid development of depth sensor, more and more RGB-D videos could be obtained. Identifying the foreground in RGB-D videos is a fundamental and important task. However, the existing salient object detection (SOD) works only focus on either static RGB-D images or RGB videos, ignoring the collaborating of RGB-D...
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false
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465,453
1909.09569
Understanding Architectures Learnt by Cell-based Neural Architecture Search
Neural architecture search (NAS) searches architectures automatically for given tasks, e.g., image classification and language modeling. Improving the search efficiency and effectiveness have attracted increasing attention in recent years. However, few efforts have been devoted to understanding the generated architectu...
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146,295