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10.1609/aaai.v34i01.7377
A Spherical Convolution Approach for Learning Long Term Viewport Prediction in 360 Immersive Video
https://ojs.aaai.org/index.php/AAAI/article/view/7377
https://ojs.aaai.org/index.php/AAAI/article/download/7377/7241
[ "Chenglei Wu", "Ruixiao Zhang", "Zhi Wang", "Lifeng Sun" ]
Viewport prediction for 360 video forecasts a viewer’s viewport when he/she watches a 360 video with a head-mounted display, which benefits many VR/AR applications such as 360 video streaming and mobile cloud VR. Existing studies based on planar convolutional neural network (CNN) suffer from the image distortion and sp...
main
AI and the Web
10.1609/aaai.v34i01.7377
34
01
14003-14040
official
null
null
10.1609/aaai.v34i01.5367
A Recurrent Model for Collective Entity Linking with Adaptive Features
https://ojs.aaai.org/index.php/AAAI/article/view/5367
https://ojs.aaai.org/index.php/AAAI/article/download/5367/5223
[ "Xiaoling Zhou", "Yukai Miao", "Wei Wang", "Jianbin Qin" ]
The vast amount of web data enables us to build knowledge bases with unprecedented quality and coverage. Named Entity Disambiguation (NED) is an important task that automatically resolves ambiguous mentions in free text to correct target entries in the knowledge base. Traditional machine learning based methods for NED ...
main
AI and the Web
10.1609/aaai.v34i01.5367
34
01
329-336
official
null
null
10.1609/aaai.v34i01.5366
Table2Analysis: Modeling and Recommendation of Common Analysis Patterns for Multi-Dimensional Data
https://ojs.aaai.org/index.php/AAAI/article/view/5366
https://ojs.aaai.org/index.php/AAAI/article/download/5366/5222
[ "Mengyu Zhou", "Wang Tao", "Ji Pengxin", "Han Shi", "Zhang Dongmei" ]
Given a table of multi-dimensional data, what analyses would human create to extract information from it? From scientific exploration to business intelligence (BI), this is a key problem to solve towards automation of knowledge discovery and decision making. In this paper, we propose Table2Analysis to learn commonly co...
main
AI and the Web
10.1609/aaai.v34i01.5366
34
01
320-328
official
null
null
10.1609/aaai.v34i01.5365
Multi-Channel Reverse Dictionary Model
https://ojs.aaai.org/index.php/AAAI/article/view/5365
https://ojs.aaai.org/index.php/AAAI/article/download/5365/5221
[ "Lei Zhang", "Fanchao Qi", "Zhiyuan Liu", "Yasheng Wang", "Qun Liu", "Maosong Sun" ]
A reverse dictionary takes the description of a target word as input and outputs the target word together with other words that match the description. Existing reverse dictionary methods cannot deal with highly variable input queries and low-frequency target words successfully. Inspired by the description-to-word infer...
main
AI and the Web
10.1609/aaai.v34i01.5365
34
01
312-319
official
1912.08441
title_snapshot
10.1609/aaai.v34i01.5364
An End-to-End Visual-Audio Attention Network for Emotion Recognition in User-Generated Videos
https://ojs.aaai.org/index.php/AAAI/article/view/5364
https://ojs.aaai.org/index.php/AAAI/article/download/5364/5220
[ "Sicheng Zhao", "Yunsheng Ma", "Yang Gu", "Jufeng Yang", "Tengfei Xing", "Pengfei Xu", "Runbo Hu", "Hua Chai", "Kurt Keutzer" ]
Emotion recognition in user-generated videos plays an important role in human-centered computing. Existing methods mainly employ traditional two-stage shallow pipeline, i.e. extracting visual and/or audio features and training classifiers. In this paper, we propose to recognize video emotions in an end-to-end manner ba...
main
AI and the Web
10.1609/aaai.v34i01.5364
34
01
303-311
official
2003.00832
title_snapshot
10.1609/aaai.v34i01.5363
D2D-LSTM: LSTM-Based Path Prediction of Content Diffusion Tree in Device-to-Device Social Networks
https://ojs.aaai.org/index.php/AAAI/article/view/5363
https://ojs.aaai.org/index.php/AAAI/article/download/5363/5219
[ "Heng Zhang", "Xiaofei Wang", "Jiawen Chen", "Chenyang Wang", "Jianxin Li" ]
With the proliferation of mobile device users, the Device-to-Device (D2D) communication has ascended to the spotlight in social network for users to share and exchange enormous data. Different from classic online social network (OSN) like Twitter and Facebook, each single data file to be shared in the D2D social networ...
main
AI and the Web
10.1609/aaai.v34i01.5363
34
01
295-302
official
null
null
10.1609/aaai.v34i01.5362
Learning to Match on Graph for Fashion Compatibility Modeling
https://ojs.aaai.org/index.php/AAAI/article/view/5362
https://ojs.aaai.org/index.php/AAAI/article/download/5362/5218
[ "Xun Yang", "Xiaoyu Du", "Meng Wang" ]
Understanding the mix-and-match relationships between items receives increasing attention in the fashion industry. Existing methods have primarily learned visual compatibility from dyadic co-occurrence or co-purchase information of items to model the item-item matching interaction. Despite effectiveness, rich extra-con...
main
AI and the Web
10.1609/aaai.v34i01.5362
34
01
287-294
official
null
null
10.1609/aaai.v34i01.5361
Cross-Modal Attention Network for Temporal Inconsistent Audio-Visual Event Localization
https://ojs.aaai.org/index.php/AAAI/article/view/5361
https://ojs.aaai.org/index.php/AAAI/article/download/5361/5217
[ "Hanyu Xuan", "Zhenyu Zhang", "Shuo Chen", "Jian Yang", "Yan Yan" ]
In human multi-modality perception systems, the benefits of integrating auditory and visual information are extensive as they provide plenty supplementary cues for understanding the events. Despite some recent methods proposed for such application, they cannot deal with practical conditions with temporal inconsistency....
main
AI and the Web
10.1609/aaai.v34i01.5361
34
01
279-286
official
null
null
10.1609/aaai.v34i01.5349
Incremental Fairness in Two-Sided Market Platforms: On Smoothly Updating Recommendations
https://ojs.aaai.org/index.php/AAAI/article/view/5349
https://ojs.aaai.org/index.php/AAAI/article/download/5349/5205
[ "Gourab K. Patro", "Abhijnan Chakraborty", "Niloy Ganguly", "Krishna Gummadi" ]
Major online platforms today can be thought of as two-sided markets with producers and customers of goods and services. There have been concerns that over-emphasis on customer satisfaction by the platforms may affect the well-being of the producers. To counter such issues, few recent works have attempted to incorporate...
main
AI and the Web
10.1609/aaai.v34i01.5349
34
01
181-188
official
1909.10005
title_snapshot
10.1609/aaai.v34i01.5348
A Variational Point Process Model for Social Event Sequences
https://ojs.aaai.org/index.php/AAAI/article/view/5348
https://ojs.aaai.org/index.php/AAAI/article/download/5348/5204
[ "Zhen Pan", "Zhenya Huang", "Defu Lian", "Enhong Chen" ]
Many events occur in real-world and social networks. Events are related to the past and there are patterns in the evolution of event sequences. Understanding the patterns can help us better predict the type and arriving time of the next event. In the literature, both feature-based approaches and generative approaches a...
main
AI and the Web
10.1609/aaai.v34i01.5348
34
01
173-180
official
null
null
10.1609/aaai.v34i01.5350
Towards Comprehensive Recommender Systems: Time-Aware Unified Recommendations Based on Listwise Ranking of Implicit Cross-Network Data
https://ojs.aaai.org/index.php/AAAI/article/view/5350
https://ojs.aaai.org/index.php/AAAI/article/download/5350/5206
[ "Dilruk Perera", "Roger Zimmermann" ]
The abundance of information in web applications make recommendation essential for users as well as applications. Despite the effectiveness of existing recommender systems, we find two major limitations that reduce their overall performance: (1) inability to provide timely recommendations for both new and existing user...
main
AI and the Web
10.1609/aaai.v34i01.5350
34
01
189-197
official
2008.13516
title_judge
10.1609/aaai.v34i01.5351
Minimizing the Bag-of-Ngrams Difference for Non-Autoregressive Neural Machine Translation
https://ojs.aaai.org/index.php/AAAI/article/view/5351
https://ojs.aaai.org/index.php/AAAI/article/download/5351/5207
[ "Chenze Shao", "Jinchao Zhang", "Yang Feng", "Fandong Meng", "Jie Zhou" ]
Non-Autoregressive Neural Machine Translation (NAT) achieves significant decoding speedup through generating target words independently and simultaneously. However, in the context of non-autoregressive translation, the word-level cross-entropy loss cannot model the target-side sequential dependency properly, leading to...
main
AI and the Web
10.1609/aaai.v34i01.5351
34
01
198-205
official
1911.09320
title_snapshot
10.1609/aaai.v34i01.5352
PEIA: Personality and Emotion Integrated Attentive Model for Music Recommendation on Social Media Platforms
https://ojs.aaai.org/index.php/AAAI/article/view/5352
https://ojs.aaai.org/index.php/AAAI/article/download/5352/5208
[ "Tiancheng Shen", "Jia Jia", "Yan Li", "Yihui Ma", "Yaohua Bu", "Hanjie Wang", "Bo Chen", "Tat-Seng Chua", "Wendy Hall" ]
With the rapid expansion of digital music formats, it's indispensable to recommend users with their favorite music. For music recommendation, users' personality and emotion greatly affect their music preference, respectively in a long-term and short-term manner, while rich social media data provides effective feedback ...
main
AI and the Web
10.1609/aaai.v34i01.5352
34
01
206-213
official
null
null
10.1609/aaai.v34i01.5353
Where to Go Next: Modeling Long- and Short-Term User Preferences for Point-of-Interest Recommendation
https://ojs.aaai.org/index.php/AAAI/article/view/5353
https://ojs.aaai.org/index.php/AAAI/article/download/5353/5209
[ "Ke Sun", "Tieyun Qian", "Tong Chen", "Yile Liang", "Quoc Viet Hung Nguyen", "Hongzhi Yin" ]
Point-of-Interest (POI) recommendation has been a trending research topic as it generates personalized suggestions on facilities for users from a large number of candidate venues. Since users' check-in records can be viewed as a long sequence, methods based on recurrent neural networks (RNNs) have recently shown promis...
main
AI and the Web
10.1609/aaai.v34i01.5353
34
01
214-221
official
null
null
10.1609/aaai.v34i01.5354
Knowledge Graph Alignment Network with Gated Multi-Hop Neighborhood Aggregation
https://ojs.aaai.org/index.php/AAAI/article/view/5354
https://ojs.aaai.org/index.php/AAAI/article/download/5354/5210
[ "Zequn Sun", "Chengming Wang", "Wei Hu", "Muhao Chen", "Jian Dai", "Wei Zhang", "Yuzhong Qu" ]
Graph neural networks (GNNs) have emerged as a powerful paradigm for embedding-based entity alignment due to their capability of identifying isomorphic subgraphs. However, in real knowledge graphs (KGs), the counterpart entities usually have non-isomorphic neighborhood structures, which easily causes GNNs to yield diff...
main
AI and the Web
10.1609/aaai.v34i01.5354
34
01
222-229
official
1911.08936
title_snapshot
10.1609/aaai.v34i01.5355
Learning with Unsure Responses
https://ojs.aaai.org/index.php/AAAI/article/view/5355
https://ojs.aaai.org/index.php/AAAI/article/download/5355/5211
[ "Kunihiro Takeoka", "Yuyang Dong", "Masafumi Oyamada" ]
Many annotation systems provide to add an unsure option in the labels, because the annotators have different expertise, and they may not have enough confidence to choose a label for some assigned instances. However, all the existing approaches only learn the labels with a clear class name and ignore the unsure response...
main
AI and the Web
10.1609/aaai.v34i01.5355
34
01
230-237
official
null
null
10.1609/aaai.v34i01.5356
Author Name Disambiguation on Heterogeneous Information Network with Adversarial Representation Learning
https://ojs.aaai.org/index.php/AAAI/article/view/5356
https://ojs.aaai.org/index.php/AAAI/article/download/5356/5212
[ "Haiwen Wang", "Ruijie Wan", "Chuan Wen", "Shuhao Li", "Yuting Jia", "Weinan Zhang", "Xinbing Wang" ]
Author name ambiguity causes inadequacy and inconvenience in academic information retrieval, which raises the necessity of author name disambiguation (AND). Existing AND methods can be divided into two categories: the models focusing on content information to distinguish whether two papers are written by the same autho...
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AI and the Web
10.1609/aaai.v34i01.5356
34
01
238-245
official
2002.09803
title_snapshot
10.1609/aaai.v34i01.5357
Social Influence Does Matter: User Action Prediction for In-Feed Advertising
https://ojs.aaai.org/index.php/AAAI/article/view/5357
https://ojs.aaai.org/index.php/AAAI/article/download/5357/5213
[ "Hongyang Wang", "Qingfei Meng", "Ju Fan", "Yuchen Li", "Laizhong Cui", "Xiaoman Zhao", "Chong Peng", "Gong Chen", "Xiaoyong Du" ]
Social in-feed advertising delivers ads that seamlessly fit inside a user’s feed, and allows users to engage in social actions (likes or comments) with the ads. Many businesses pay higher attention to “engagement marketing” that maximizes social actions, as social actions can effectively promote brand awareness. This p...
main
AI and the Web
10.1609/aaai.v34i01.5357
34
01
246-253
official
null
null
10.1609/aaai.v34i01.5358
Mining Unfollow Behavior in Large-Scale Online Social Networks via Spatial-Temporal Interaction
https://ojs.aaai.org/index.php/AAAI/article/view/5358
https://ojs.aaai.org/index.php/AAAI/article/download/5358/5214
[ "Haozhe Wu", "Zhiyuan Hu", "Jia Jia", "Yaohua Bu", "Xiangnan He", "Tat-Seng Chua" ]
Online Social Networks (OSNs) evolve through two pervasive behaviors: follow and unfollow, which respectively signify relationship creation and relationship dissolution. Researches on social network evolution mainly focus on the follow behavior, while the unfollow behavior has largely been ignored. Mining unfollow beha...
main
AI and the Web
10.1609/aaai.v34i01.5358
34
01
254-261
official
1911.07156
title_snapshot
10.1609/aaai.v34i01.5359
Who Likes What? — SplitLBI in Exploring Preferential Diversity of Ratings
https://ojs.aaai.org/index.php/AAAI/article/view/5359
https://ojs.aaai.org/index.php/AAAI/article/download/5359/5215
[ "Qianqian Xu", "Jiechao Xiong", "Zhiyong Yang", "Xiaochun Cao", "Qingming Huang", "Yuan Yao" ]
In recent years, learning user preferences has received significant attention. A shortcoming of existing learning to rank work lies in that they do not take into account the multi-level hierarchies from social choice to individuals. In this paper, we propose a multi-level model which learns both the common preference o...
main
AI and the Web
10.1609/aaai.v34i01.5359
34
01
262-269
official
null
null
10.1609/aaai.v34i01.5360
Multi-Feature Discrete Collaborative Filtering for Fast Cold-Start Recommendation
https://ojs.aaai.org/index.php/AAAI/article/view/5360
https://ojs.aaai.org/index.php/AAAI/article/download/5360/5216
[ "Yang Xu", "Lei Zhu", "Zhiyong Cheng", "Jingjing Li", "Jiande Sun" ]
Hashing is an effective technique to address the large-scale recommendation problem, due to its high computation and storage efficiency on calculating the user preferences on items. However, existing hashing-based recommendation methods still suffer from two important problems: 1) Their recommendation process mainly re...
main
AI and the Web
10.1609/aaai.v34i01.5360
34
01
270-278
official
2003.10719
title_snapshot
10.1609/aaai.v34i01.5347
Modality to Modality Translation: An Adversarial Representation Learning and Graph Fusion Network for Multimodal Fusion
https://ojs.aaai.org/index.php/AAAI/article/view/5347
https://ojs.aaai.org/index.php/AAAI/article/download/5347/5203
[ "Sijie Mai", "Haifeng Hu", "Songlong Xing" ]
Learning joint embedding space for various modalities is of vital importance for multimodal fusion. Mainstream modality fusion approaches fail to achieve this goal, leaving a modality gap which heavily affects cross-modal fusion. In this paper, we propose a novel adversarial encoder-decoder-classifier framework to lear...
main
AI and the Web
10.1609/aaai.v34i01.5347
34
01
164-172
official
1911.07848
title_snapshot
10.1609/aaai.v34i01.5346
Deep Match to Rank Model for Personalized Click-Through Rate Prediction
https://ojs.aaai.org/index.php/AAAI/article/view/5346
https://ojs.aaai.org/index.php/AAAI/article/download/5346/5202
[ "Ze Lyu", "Yu Dong", "Chengfu Huo", "Weijun Ren" ]
Click-through rate (CTR) prediction is a core task in the field of recommender system and many other applications. For CTR prediction model, personalization is the key to improve the performance and enhance the user experience. Recently, several models are proposed to extract user interest from user behavior data which...
main
AI and the Web
10.1609/aaai.v34i01.5346
34
01
156-163
official
null
null
10.1609/aaai.v34i01.5345
Type-Aware Anchor Link Prediction across Heterogeneous Networks Based on Graph Attention Network
https://ojs.aaai.org/index.php/AAAI/article/view/5345
https://ojs.aaai.org/index.php/AAAI/article/download/5345/5201
[ "Xiaoxue Li", "Yanmin Shang", "Yanan Cao", "Yangxi Li", "Jianlong Tan", "Yanbing Liu" ]
Anchor Link Prediction (ALP) across heterogeneous networks plays a pivotal role in inter-network applications. The difficulty of anchor link prediction in heterogeneous networks lies in how to consider the factors affecting nodes alignment comprehensively. In recent years, predicting anchor links based on network embed...
main
AI and the Web
10.1609/aaai.v34i01.5345
34
01
147-155
official
null
null
10.1609/aaai.v34i01.5344
Understanding and Improving Proximity Graph Based Maximum Inner Product Search
https://ojs.aaai.org/index.php/AAAI/article/view/5344
https://ojs.aaai.org/index.php/AAAI/article/download/5344/5200
[ "Jie Liu", "Xiao Yan", "Xinyan Dai", "Zhirong Li", "James Cheng", "Ming-Chang Yang" ]
The inner-product navigable small world graph (ip-NSW) represents the state-of-the-art method for approximate maximum inner product search (MIPS) and it can achieve an order of magnitude speedup over the fastest baseline. However, to date it is still unclear where its exceptional performance comes from. In this paper, ...
main
AI and the Web
10.1609/aaai.v34i01.5344
34
01
139-146
official
1909.13459
title_snapshot
10.1609/aaai.v34i01.5343
True Nonlinear Dynamics from Incomplete Networks
https://ojs.aaai.org/index.php/AAAI/article/view/5343
https://ojs.aaai.org/index.php/AAAI/article/download/5343/5199
[ "Chunheng Jiang", "Jianxi Gao", "Malik Magdon-Ismail" ]
We study nonlinear dynamics on complex networks. Each vertex i has a state xi which evolves according to a networked dynamics to a steady-state xi*. We develop fundamental tools to learn the true steady-state of a small part of the network, without knowing the full network. A naive approach and the current state-of-the...
main
AI and the Web
10.1609/aaai.v34i01.5343
34
01
131-138
official
2001.06722
title_snapshot
10.1609/aaai.v34i01.5342
Functionality Discovery and Prediction of Physical Objects
https://ojs.aaai.org/index.php/AAAI/article/view/5342
https://ojs.aaai.org/index.php/AAAI/article/download/5342/5198
[ "Lei Ji", "Botian Shi", "Xianglin Guo", "Xilin Chen" ]
Functionality is a fundamental attribute of an object which indicates the capability to be used to perform specific actions. It is critical to empower robots the functionality knowledge in discovering appropriate objects for a task e.g. cut cake using knife. Existing research works have focused on understanding object ...
main
AI and the Web
10.1609/aaai.v34i01.5342
34
01
123-130
official
null
null
10.1609/aaai.v34i01.5341
Cross-Lingual Pre-Training Based Transfer for Zero-Shot Neural Machine Translation
https://ojs.aaai.org/index.php/AAAI/article/view/5341
https://ojs.aaai.org/index.php/AAAI/article/download/5341/5197
[ "Baijun Ji", "Zhirui Zhang", "Xiangyu Duan", "Min Zhang", "Boxing Chen", "Weihua Luo" ]
Transfer learning between different language pairs has shown its effectiveness for Neural Machine Translation (NMT) in low-resource scenario. However, existing transfer methods involving a common target language are far from success in the extreme scenario of zero-shot translation, due to the language space mismatch pr...
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AI and the Web
10.1609/aaai.v34i01.5341
34
01
115-122
official
1912.01214
title_snapshot
10.1609/aaai.v34i01.5328
MultiSumm: Towards a Unified Model for Multi-Lingual Abstractive Summarization
https://ojs.aaai.org/index.php/AAAI/article/view/5328
https://ojs.aaai.org/index.php/AAAI/article/download/5328/5184
[ "Yue Cao", "Xiaojun Wan", "Jinge Yao", "Dian Yu" ]
Automatic text summarization aims at producing a shorter version of the input text that conveys the most important information. However, multi-lingual text summarization, where the goal is to process texts in multiple languages and output summaries in the corresponding languages with a single model, has been rarely stu...
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AI and the Web
10.1609/aaai.v34i01.5328
34
01
11-18
official
null
null
10.1609/aaai.v34i01.5327
Balancing Spreads of Influence in a Social Network
https://ojs.aaai.org/index.php/AAAI/article/view/5327
https://ojs.aaai.org/index.php/AAAI/article/download/5327/5183
[ "Ruben Becker", "Federico Corò", "Gianlorenzo D'Angelo", "Hugo Gilbert" ]
The personalization of our news consumption on social media has a tendency to reinforce our pre-existing beliefs instead of balancing our opinions. To tackle this issue, Garimella et al. (NIPS'17) modeled the spread of these viewpoints, also called campaigns, using the independent cascade model introduced by Kempe, Kle...
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AI and the Web
10.1609/aaai.v34i01.5327
34
01
3-10
official
1906.00074
title_snapshot
10.1609/aaai.v34i01.5329
Efficient Heterogeneous Collaborative Filtering without Negative Sampling for Recommendation
https://ojs.aaai.org/index.php/AAAI/article/view/5329
https://ojs.aaai.org/index.php/AAAI/article/download/5329/5185
[ "Chong Chen", "Min Zhang", "Yongfeng Zhang", "Weizhi Ma", "Yiqun Liu", "Shaoping Ma" ]
Recent studies on recommendation have largely focused on exploring state-of-the-art neural networks to improve the expressiveness of models, while typically apply the Negative Sampling (NS) strategy for efficient learning. Despite effectiveness, two important issues have not been well-considered in existing methods: 1)...
main
AI and the Web
10.1609/aaai.v34i01.5329
34
01
19-26
official
null
null
10.1609/aaai.v34i01.5330
Revisiting Graph Based Collaborative Filtering: A Linear Residual Graph Convolutional Network Approach
https://ojs.aaai.org/index.php/AAAI/article/view/5330
https://ojs.aaai.org/index.php/AAAI/article/download/5330/5186
[ "Lei Chen", "Le Wu", "Richang Hong", "Kun Zhang", "Meng Wang" ]
Graph Convolutional Networks~(GCNs) are state-of-the-art graph based representation learning models by iteratively stacking multiple layers of convolution aggregation operations and non-linear activation operations. Recently, in Collaborative Filtering~(CF) based Recommender Systems~(RS), by treating the user-item inte...
main
AI and the Web
10.1609/aaai.v34i01.5330
34
01
27-34
official
2001.10167
title_snapshot
10.1609/aaai.v34i01.5331
Question-Driven Purchasing Propensity Analysis for Recommendation
https://ojs.aaai.org/index.php/AAAI/article/view/5331
https://ojs.aaai.org/index.php/AAAI/article/download/5331/5187
[ "Long Chen", "Ziyu Guan", "Qibin Xu", "Qiong Zhang", "Huan Sun", "Guangyue Lu", "Deng Cai" ]
Merchants of e-commerce Websites expect recommender systems to entice more consumption which is highly correlated with the customers' purchasing propensity. However, most existing recommender systems focus on customers' general preference rather than purchasing propensity often governed by instant demands which we deem...
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AI and the Web
10.1609/aaai.v34i01.5331
34
01
35-42
official
null
null
10.1609/aaai.v34i01.5332
Gradient Method for Continuous Influence Maximization with Budget-Saving Considerations
https://ojs.aaai.org/index.php/AAAI/article/view/5332
https://ojs.aaai.org/index.php/AAAI/article/download/5332/5188
[ "Wei Chen", "Weizhong Zhang", "Haoyu Zhao" ]
Continuous influence maximization (CIM) generalizes the original influence maximization by incorporating general marketing strategies: a marketing strategy mix is a vector x = (x1, …, xd) such that for each node v in a social network, v could be activated as a seed of diffusion with probability hv(x), where hv is a str...
main
AI and the Web
10.1609/aaai.v34i01.5332
34
01
43-50
official
1911.09100
title_snapshot
10.1609/aaai.v34i01.5333
Norm-Explicit Quantization: Improving Vector Quantization for Maximum Inner Product Search
https://ojs.aaai.org/index.php/AAAI/article/view/5333
https://ojs.aaai.org/index.php/AAAI/article/download/5333/5189
[ "Xinyan Dai", "Xiao Yan", "Kelvin K. W. Ng", "Jiu Liu", "James Cheng" ]
Vector quantization (VQ) techniques are widely used in similarity search for data compression, computation acceleration and etc. Originally designed for Euclidean distance, existing VQ techniques (e.g., PQ, AQ) explicitly or implicitly minimize the quantization error. In this paper, we present a new angle to analyze th...
main
AI and the Web
10.1609/aaai.v34i01.5333
34
01
51-58
official
1911.04654
title_snapshot
10.1609/aaai.v34i01.5334
Modeling Fluency and Faithfulness for Diverse Neural Machine Translation
https://ojs.aaai.org/index.php/AAAI/article/view/5334
https://ojs.aaai.org/index.php/AAAI/article/download/5334/5190
[ "Yang Feng", "Wanying Xie", "Shuhao Gu", "Chenze Shao", "Wen Zhang", "Zhengxin Yang", "Dong Yu" ]
Neural machine translation models usually adopt the teacher forcing strategy for training which requires the predicted sequence matches ground truth word by word and forces the probability of each prediction to approach a 0-1 distribution. However, the strategy casts all the portion of the distribution to the ground tr...
main
AI and the Web
10.1609/aaai.v34i01.5334
34
01
59-66
official
1912.00178
title_snapshot
10.1609/aaai.v34i01.5335
Leveraging Title-Abstract Attentive Semantics for Paper Recommendation
https://ojs.aaai.org/index.php/AAAI/article/view/5335
https://ojs.aaai.org/index.php/AAAI/article/download/5335/5191
[ "Guibing Guo", "Bowei Chen", "Xiaoyan Zhang", "Zhirong Liu", "Zhenhua Dong", "Xiuqiang He" ]
Paper recommendation is a research topic to provide users with personalized papers of interest. However, most existing approaches equally treat title and abstract as the input to learn the representation of a paper, ignoring their semantic relationship. In this paper, we regard the abstract as a sequence of sentences, ...
main
AI and the Web
10.1609/aaai.v34i01.5335
34
01
67-74
official
null
null
10.1609/aaai.v34i01.5336
Preserving Ordinal Consensus: Towards Feature Selection for Unlabeled Data
https://ojs.aaai.org/index.php/AAAI/article/view/5336
https://ojs.aaai.org/index.php/AAAI/article/download/5336/5192
[ "Jun Guo", "Heng Chang", "Wenwu Zhu" ]
To better pre-process unlabeled data, most existing feature selection methods remove redundant and noisy information by exploring some intrinsic structures embedded in samples. However, these unsupervised studies focus too much on the relations among samples, totally neglecting the feature-level geometric information. ...
main
AI and the Web
10.1609/aaai.v34i01.5336
34
01
75-82
official
null
null
10.1609/aaai.v34i01.5337
An Attentional Recurrent Neural Network for Personalized Next Location Recommendation
https://ojs.aaai.org/index.php/AAAI/article/view/5337
https://ojs.aaai.org/index.php/AAAI/article/download/5337/5193
[ "Qing Guo", "Zhu Sun", "Jie Zhang", "Yin-Leng Theng" ]
Most existing studies on next location recommendation propose to model the sequential regularity of check-in sequences, but suffer from the severe data sparsity issue where most locations have fewer than five following locations. To this end, we propose an Attentional Recurrent Neural Network (ARNN) to jointly model bo...
main
AI and the Web
10.1609/aaai.v34i01.5337
34
01
83-90
official
null
null
10.1609/aaai.v34i01.5338
Re-Attention for Visual Question Answering
https://ojs.aaai.org/index.php/AAAI/article/view/5338
https://ojs.aaai.org/index.php/AAAI/article/download/5338/5194
[ "Wenya Guo", "Ying Zhang", "Xiaoping Wu", "Jufeng Yang", "Xiangrui Cai", "Xiaojie Yuan" ]
Visual Question Answering~(VQA) requires a simultaneous understanding of images and questions. Existing methods achieve well performance by focusing on both key objects in images and key words in questions. However, the answer also contains rich information which can help to better describe the image and generate more ...
main
AI and the Web
10.1609/aaai.v34i01.5338
34
01
91-98
official
null
null
10.1609/aaai.v34i01.5339
Semi-Supervised Multi-Modal Learning with Balanced Spectral Decomposition
https://ojs.aaai.org/index.php/AAAI/article/view/5339
https://ojs.aaai.org/index.php/AAAI/article/download/5339/5195
[ "Peng Hu", "Hongyuan Zhu", "Xi Peng", "Jie Lin" ]
Cross-modal retrieval aims to retrieve the relevant samples across different modalities, of which the key problem is how to model the correlations among different modalities while narrowing the large heterogeneous gap. In this paper, we propose a Semi-supervised Multimodal Learning Network method (SMLN) which correlate...
main
AI and the Web
10.1609/aaai.v34i01.5339
34
01
99-106
official
null
null
10.1609/aaai.v34i01.5340
MuMod: A Micro-Unit Connection Approach for Hybrid-Order Community Detection
https://ojs.aaai.org/index.php/AAAI/article/view/5340
https://ojs.aaai.org/index.php/AAAI/article/download/5340/5196
[ "Ling Huang", "Hong-Yang Chao", "Quangqiang Xie" ]
In the past few years, higher-order community detection has drawn an increasing amount of attention. Compared with the lower-order approaches that rely on the connectivity pattern of individual nodes and edges, the higher-order approaches discover communities by leveraging the higher-order connectivity pattern via cons...
main
AI and the Web
10.1609/aaai.v34i01.5340
34
01
107-114
official
null
null
10.1609/aaai.v34i01.5482
MixedAD: A Scalable Algorithm for Detecting Mixed Anomalies in Attributed Graphs
https://ojs.aaai.org/index.php/AAAI/article/view/5482
https://ojs.aaai.org/index.php/AAAI/article/download/5482/5338
[ "Mengxiao Zhu", "Haogang Zhu" ]
Attributed graphs, where nodes are associated with a rich set of attributes, have been widely used in various domains. Among all the nodes, those with patterns that deviate significantly from others are of particular interest. There are mainly two challenges for anomaly detection. For one thing, we often encounter larg...
main
Applications
10.1609/aaai.v34i01.5482
34
01
1274-1281
official
null
null
10.1609/aaai.v34i01.5467
MetaLight: Value-Based Meta-Reinforcement Learning for Traffic Signal Control
https://ojs.aaai.org/index.php/AAAI/article/view/5467
https://ojs.aaai.org/index.php/AAAI/article/download/5467/5323
[ "Xinshi Zang", "Huaxiu Yao", "Guanjie Zheng", "Nan Xu", "Kai Xu", "Zhenhui Li" ]
Using reinforcement learning for traffic signal control has attracted increasing interests recently. Various value-based reinforcement learning methods have been proposed to deal with this classical transportation problem and achieved better performances compared with traditional transportation methods. However, curren...
main
Applications
10.1609/aaai.v34i01.5467
34
01
1153-1160
official
null
null
10.1609/aaai.v34i01.5462
Reinforcement-Learning Based Portfolio Management with Augmented Asset Movement Prediction States
https://ojs.aaai.org/index.php/AAAI/article/view/5462
https://ojs.aaai.org/index.php/AAAI/article/download/5462/5318
[ "Yunan Ye", "Hengzhi Pei", "Boxin Wang", "Pin-Yu Chen", "Yada Zhu", "Ju Xiao", "Bo Li" ]
Portfolio management (PM) is a fundamental financial planning task that aims to achieve investment goals such as maximal profits or minimal risks. Its decision process involves continuous derivation of valuable information from various data sources and sequential decision optimization, which is a prospective research d...
main
Applications
10.1609/aaai.v34i01.5462
34
01
1112-1119
official
2002.05780
title_snapshot
10.1609/aaai.v34i01.5463
Attention Based Data Hiding with Generative Adversarial Networks
https://ojs.aaai.org/index.php/AAAI/article/view/5463
https://ojs.aaai.org/index.php/AAAI/article/download/5463/5319
[ "Chong Yu" ]
Recently, the generative adversarial network is the hotspot in research and industrial areas. Its application on data generation is the most common usage. In this paper, we propose the novel end-to-end framework to extend its application to data hiding area. The discriminative model simulates the detection process, whi...
main
Applications
10.1609/aaai.v34i01.5463
34
01
1120-1128
official
null
null
10.1609/aaai.v34i01.5464
AirNet: A Calibration Model for Low-Cost Air Monitoring Sensors Using Dual Sequence Encoder Networks
https://ojs.aaai.org/index.php/AAAI/article/view/5464
https://ojs.aaai.org/index.php/AAAI/article/download/5464/5320
[ "Haomin Yu", "Qingyong Li", "Yangli-ao Geng", "Yingjun Zhang", "Zhi Wei" ]
Air pollution monitoring has attracted much attention in recent years. However, accurate and high-resolution monitoring of atmospheric pollution remains challenging. There are two types of devices for air pollution monitoring, i.e., static stations and mobile stations. Static stations can provide accurate pollution mea...
main
Applications
10.1609/aaai.v34i01.5464
34
01
1129-1136
official
null
null
10.1609/aaai.v34i01.5465
Towards Hands-Free Visual Dialog Interactive Recommendation
https://ojs.aaai.org/index.php/AAAI/article/view/5465
https://ojs.aaai.org/index.php/AAAI/article/download/5465/5321
[ "Tong Yu", "Yilin Shen", "Hongxia Jin" ]
With the recent advances of multimodal interactive recommendations, the users are able to express their preference by natural language feedback to the item images, to find the desired items. However, the existing systems either retrieve only one item or require the user to specify (e.g., by click or touch) the commente...
main
Applications
10.1609/aaai.v34i01.5465
34
01
1137-1144
official
null
null
10.1609/aaai.v34i01.5466
Order Matters: Semantic-Aware Neural Networks for Binary Code Similarity Detection
https://ojs.aaai.org/index.php/AAAI/article/view/5466
https://ojs.aaai.org/index.php/AAAI/article/download/5466/5322
[ "Zeping Yu", "Rui Cao", "Qiyi Tang", "Sen Nie", "Junzhou Huang", "Shi Wu" ]
Binary code similarity detection, whose goal is to detect similar binary functions without having access to the source code, is an essential task in computer security. Traditional methods usually use graph matching algorithms, which are slow and inaccurate. Recently, neural network-based approaches have made great achi...
main
Applications
10.1609/aaai.v34i01.5466
34
01
1145-1152
official
null
null
10.1609/aaai.v34i01.5468
Geometry-Constrained Car Recognition Using a 3D Perspective Network
https://ojs.aaai.org/index.php/AAAI/article/view/5468
https://ojs.aaai.org/index.php/AAAI/article/download/5468/5324
[ "Zeng Rui", "Ge Zongyuan", "Denman Simon", "Sridharan Sridha", "Fookes Clinton" ]
We present a novel learning framework for vehicle recognition from a single RGB image. Unlike existing methods which only use attention mechanisms to locate 2D discriminative information, our work learns a novel 3D perspective feature representation of a vehicle, which is then fused with 2D appearance feature to predic...
main
Applications
10.1609/aaai.v34i01.5468
34
01
1161-1168
official
1903.07916
title_snapshot
10.1609/aaai.v34i01.5469
Generating Adversarial Examples for Holding Robustness of Source Code Processing Models
https://ojs.aaai.org/index.php/AAAI/article/view/5469
https://ojs.aaai.org/index.php/AAAI/article/download/5469/5325
[ "Huangzhao Zhang", "Zhuo Li", "Ge Li", "Lei Ma", "Yang Liu", "Zhi Jin" ]
Automated processing, analysis, and generation of source code are among the key activities in software and system lifecycle. To this end, while deep learning (DL) exhibits a certain level of capability in handling these tasks, the current state-of-the-art DL models still suffer from non-robust issues and can be easily ...
main
Applications
10.1609/aaai.v34i01.5469
34
01
1169-1176
official
null
null
10.1609/aaai.v34i01.5470
Spatio-Temporal Graph Structure Learning for Traffic Forecasting
https://ojs.aaai.org/index.php/AAAI/article/view/5470
https://ojs.aaai.org/index.php/AAAI/article/download/5470/5326
[ "Qi Zhang", "Jianlong Chang", "Gaofeng Meng", "Shiming Xiang", "Chunhong Pan" ]
As an indispensable part in Intelligent Traffic System (ITS), the task of traffic forecasting inherently subjects to the following three challenging aspects. First, traffic data are physically associated with road networks, and thus should be formatted as traffic graphs rather than regular grid-like tensors. Second, tr...
main
Applications
10.1609/aaai.v34i01.5470
34
01
1177-1185
official
null
null
10.1609/aaai.v34i01.5471
Semi-Supervised Hierarchical Recurrent Graph Neural Network for City-Wide Parking Availability Prediction
https://ojs.aaai.org/index.php/AAAI/article/view/5471
https://ojs.aaai.org/index.php/AAAI/article/download/5471/5327
[ "Weijia Zhang", "Hao Liu", "Yanchi Liu", "Jingbo Zhou", "Hui Xiong" ]
The ability to predict city-wide parking availability is crucial for the successful development of Parking Guidance and Information (PGI) systems. Indeed, the effective prediction of city-wide parking availability can improve parking efficiency, help urban planning, and ultimately alleviate city congestion. However, it...
main
Applications
10.1609/aaai.v34i01.5471
34
01
1186-1193
official
1911.10516
title_snapshot
10.1609/aaai.v34i01.5473
A Novel Learning Framework for Sampling-Based Motion Planning in Autonomous Driving
https://ojs.aaai.org/index.php/AAAI/article/view/5473
https://ojs.aaai.org/index.php/AAAI/article/download/5473/5329
[ "Yifan Zhang", "Jinghuai Zhang", "Jindi Zhang", "Jianping Wang", "Kejie Lu", "Jeff Hong" ]
Sampling-based motion planning (SBMP) is a major trajectory planning approach in autonomous driving given its high efficiency in practice. As the core of SBMP schemes, sampling strategy holds the key to whether a smooth and collision-free trajectory can be found in real-time. Although some bias sampling strategies have...
main
Applications
10.1609/aaai.v34i01.5473
34
01
1202-1209
official
null
null
10.1609/aaai.v34i01.5481
Deep Reservoir Computing Meets 5G MIMO-OFDM Systems in Symbol Detection
https://ojs.aaai.org/index.php/AAAI/article/view/5481
https://ojs.aaai.org/index.php/AAAI/article/download/5481/5337
[ "Zhou Zhou", "Lingjia Liu", "Vikram Chandrasekhar", "Jianzhong Zhang", "Yang Yi" ]
Conventional reservoir computing (RC) is a shallow recurrent neural network (RNN) with fixed high dimensional hidden dynamics and one trainable output layer. It has the nice feature of requiring limited training which is critical for certain applications where training data is extremely limited and costly to obtain. In...
main
Applications
10.1609/aaai.v34i01.5481
34
01
1266-1273
official
null
null
10.1609/aaai.v34i01.5480
RiskOracle: A Minute-Level Citywide Traffic Accident Forecasting Framework
https://ojs.aaai.org/index.php/AAAI/article/view/5480
https://ojs.aaai.org/index.php/AAAI/article/download/5480/5336
[ "Zhengyang Zhou", "Yang Wang", "Xike Xie", "Lianliang Chen", "Hengchang Liu" ]
Real-time traffic accident forecasting is increasingly important for public safety and urban management (e.g., real-time safe route planning and emergency response deployment). Previous works on accident forecasting are often performed on hour levels, utilizing existed neural networks with static region-wise correlatio...
main
Applications
10.1609/aaai.v34i01.5480
34
01
1258-1265
official
2003.00819
title_snapshot
10.1609/aaai.v34i01.5479
Iteratively Questioning and Answering for Interpretable Legal Judgment Prediction
https://ojs.aaai.org/index.php/AAAI/article/view/5479
https://ojs.aaai.org/index.php/AAAI/article/download/5479/5335
[ "Haoxi Zhong", "Yuzhong Wang", "Cunchao Tu", "Tianyang Zhang", "Zhiyuan Liu", "Maosong Sun" ]
Legal Judgment Prediction (LJP) aims to predict judgment results according to the facts of cases. In recent years, LJP has drawn increasing attention rapidly from both academia and the legal industry, as it can provide references for legal practitioners and is expected to promote judicial justice. However, the research...
main
Applications
10.1609/aaai.v34i01.5479
34
01
1250-1257
official
null
null
10.1609/aaai.v34i01.5478
Index Tracking with Cardinality Constraints: A Stochastic Neural Networks Approach
https://ojs.aaai.org/index.php/AAAI/article/view/5478
https://ojs.aaai.org/index.php/AAAI/article/download/5478/5334
[ "Yu Zheng", "Bowei Chen", "Timothy M. Hospedales", "Yongxin Yang" ]
Partial (replication) index tracking is a popular passive investment strategy. It aims to replicate the performance of a given index by constructing a tracking portfolio which contains some constituents of the index. The tracking error optimisation is quadratic and NP-hard when taking the ℓ0 constraint into account so ...
main
Applications
10.1609/aaai.v34i01.5478
34
01
1242-1249
official
1911.05052
title_snapshot
10.1609/aaai.v34i01.5477
GMAN: A Graph Multi-Attention Network for Traffic Prediction
https://ojs.aaai.org/index.php/AAAI/article/view/5477
https://ojs.aaai.org/index.php/AAAI/article/download/5477/5333
[ "Chuanpan Zheng", "Xiaoliang Fan", "Cheng Wang", "Jianzhong Qi" ]
Long-term traffic prediction is highly challenging due to the complexity of traffic systems and the constantly changing nature of many impacting factors. In this paper, we focus on the spatio-temporal factors, and propose a graph multi-attention network (GMAN) to predict traffic conditions for time steps ahead at diffe...
main
Applications
10.1609/aaai.v34i01.5477
34
01
1234-1241
official
1911.08415
title_snapshot
10.1609/aaai.v34i01.5476
MaskGEC: Improving Neural Grammatical Error Correction via Dynamic Masking
https://ojs.aaai.org/index.php/AAAI/article/view/5476
https://ojs.aaai.org/index.php/AAAI/article/download/5476/5332
[ "Zewei Zhao", "Houfeng Wang" ]
Grammatical error correction (GEC) is a promising natural language processing (NLP) application, whose goal is to change the sentences with grammatical errors into the correct ones. Neural machine translation (NMT) approaches have been widely applied to this translation-like task. However, such methods need a fairly la...
main
Applications
10.1609/aaai.v34i01.5476
34
01
1226-1233
official
null
null
10.1609/aaai.v34i01.5475
OF-MSRN: Optical Flow-Auxiliary Multi-Task Regression Network for Direct Quantitative Measurement, Segmentation and Motion Estimation
https://ojs.aaai.org/index.php/AAAI/article/view/5475
https://ojs.aaai.org/index.php/AAAI/article/download/5475/5331
[ "Chengqian Zhao", "Cheng Feng", "Dengwang Li", "Shuo Li" ]
Comprehensively analyzing the carotid artery is critically significant to diagnosing and treating cardiovascular diseases. The object of this work is to simultaneously achieve direct quantitative measurement and automated segmentation of the lumen diameter and intima-media thickness as well as the motion estimation of ...
main
Applications
10.1609/aaai.v34i01.5475
34
01
1218-1225
official
null
null
10.1609/aaai.v34i01.5474
Dynamic Malware Analysis with Feature Engineering and Feature Learning
https://ojs.aaai.org/index.php/AAAI/article/view/5474
https://ojs.aaai.org/index.php/AAAI/article/download/5474/5330
[ "Zhaoqi Zhang", "Panpan Qi", "Wei Wang" ]
Dynamic malware analysis executes the program in an isolated environment and monitors its run-time behaviour (e.g. system API calls) for malware detection. This technique has been proven to be effective against various code obfuscation techniques and newly released (“zero-day”) malware. However, existing works typicall...
main
Applications
10.1609/aaai.v34i01.5474
34
01
1210-1217
official
1907.07352
title_snapshot
10.1609/aaai.v34i01.5472
Shoreline: Data-Driven Threshold Estimation of Online Reserves of Cryptocurrency Trading Platforms
https://ojs.aaai.org/index.php/AAAI/article/view/5472
https://ojs.aaai.org/index.php/AAAI/article/download/5472/5328
[ "Xitong Zhang", "He Zhu", "Jiayu Zhou" ]
With the proliferation of blockchain projects and applications, cryptocurrency exchanges, which provides exchange services among different types of cryptocurrencies, become pivotal platforms that allow customers to trade digital assets on different blockchains. Because of the anonymity and trustlessness nature of crypt...
main
Applications
10.1609/aaai.v34i01.5472
34
01
1194-1201
official
null
null
10.1609/aaai.v34i01.5461
Instance-Wise Dynamic Sensor Selection for Human Activity Recognition
https://ojs.aaai.org/index.php/AAAI/article/view/5461
https://ojs.aaai.org/index.php/AAAI/article/download/5461/5317
[ "Xiaodong Yang", "Yiqiang Chen", "Hanchao Yu", "Yingwei Zhang", "Wang Lu", "Ruizhe Sun" ]
Human Activity Recognition (HAR) is an important application of smart wearable/mobile systems for many human-centric problems such as healthcare. The multi-sensor synchronous measurement has shown better performance for HAR than a single sensor. However, the multi-sensor setting increases the costs of data transmission...
main
Applications
10.1609/aaai.v34i01.5461
34
01
1104-1111
official
null
null
10.1609/aaai.v34i01.5441
Finding Minimum-Weight Link-Disjoint Paths with a Few Common Nodes
https://ojs.aaai.org/index.php/AAAI/article/view/5441
https://ojs.aaai.org/index.php/AAAI/article/download/5441/5297
[ "Binglin Tao", "Mingyu Xiao", "Jingyang Zhao" ]
Network survivability has drawn certain interest in network optimization. However, the demand for full protection of a network is usually too restrictive. To overcome the limitation of geographical environments and to save network resources, we turn to establish backup networks allowing a few common nodes. It comes out...
main
Applications
10.1609/aaai.v34i01.5441
34
01
938-945
official
null
null
10.1609/aaai.v34i01.5442
Finding Needles in a Moving Haystack: Prioritizing Alerts with Adversarial Reinforcement Learning
https://ojs.aaai.org/index.php/AAAI/article/view/5442
https://ojs.aaai.org/index.php/AAAI/article/download/5442/5298
[ "Liang Tong", "Aron Laszka", "Chao Yan", "Ning Zhang", "Yevgeniy Vorobeychik" ]
Detection of malicious behavior is a fundamental problem in security. One of the major challenges in using detection systems in practice is in dealing with an overwhelming number of alerts that are triggered by normal behavior (the so-called false positives), obscuring alerts resulting from actual malicious activities....
main
Applications
10.1609/aaai.v34i01.5442
34
01
946-953
official
1906.08805
title_snapshot
10.1609/aaai.v34i01.5443
Robust Adversarial Objects against Deep Learning Models
https://ojs.aaai.org/index.php/AAAI/article/view/5443
https://ojs.aaai.org/index.php/AAAI/article/download/5443/5299
[ "Tzungyu Tsai", "Kaichen Yang", "Tsung-Yi Ho", "Yier Jin" ]
Previous work has shown that Deep Neural Networks (DNNs), including those currently in use in many fields, are extremely vulnerable to maliciously crafted inputs, known as adversarial examples. Despite extensive and thorough research of adversarial examples in many areas, adversarial 3D data, such as point clouds, rema...
main
Applications
10.1609/aaai.v34i01.5443
34
01
954-962
official
null
null
10.1609/aaai.v34i01.5444
OMuLeT: Online Multi-Lead Time Location Prediction for Hurricane Trajectory Forecasting
https://ojs.aaai.org/index.php/AAAI/article/view/5444
https://ojs.aaai.org/index.php/AAAI/article/download/5444/5300
[ "Ding Wang", "Boyang Liu", "Pang-Ning Tan", "Lifeng Luo" ]
Hurricanes are powerful tropical cyclones with sustained wind speeds ranging from at least 74 mph (for category 1 storms) to more than 157 mph (for category 5 storms). Accurate prediction of the storm tracks is essential for hurricane preparedness and mitigation of storm impacts. In this paper, we cast the hurricane tr...
main
Applications
10.1609/aaai.v34i01.5444
34
01
963-970
official
null
null
10.1609/aaai.v34i01.5445
Incorporating Expert-Based Investment Opinion Signals in Stock Prediction: A Deep Learning Framework
https://ojs.aaai.org/index.php/AAAI/article/view/5445
https://ojs.aaai.org/index.php/AAAI/article/download/5445/5301
[ "Heyuan Wang", "Tengjiao Wang", "Yi Li" ]
Investment messages published on social media platforms are highly valuable for stock prediction. Most previous work regards overall message sentiments as forecast indicators and relies on shallow features (bag-of-words, noun phrases, etc.) to determine the investment opinion signals. These methods neither capture the ...
main
Applications
10.1609/aaai.v34i01.5445
34
01
971-978
official
null
null
10.1609/aaai.v34i01.5446
Graph-Driven Generative Models for Heterogeneous Multi-Task Learning
https://ojs.aaai.org/index.php/AAAI/article/view/5446
https://ojs.aaai.org/index.php/AAAI/article/download/5446/5302
[ "Wenlin Wang", "Hongteng Xu", "Zhe Gan", "Bai Li", "Guoyin Wang", "Liqun Chen", "Qian Yang", "Wenqi Wang", "Lawrence Carin" ]
We propose a novel graph-driven generative model, that unifies multiple heterogeneous learning tasks into the same framework. The proposed model is based on the fact that heterogeneous learning tasks, which correspond to different generative processes, often rely on data with a shared graph structure. Accordingly, our ...
main
Applications
10.1609/aaai.v34i01.5446
34
01
979-988
official
1911.08709
title_snapshot
10.1609/aaai.v34i01.5447
Topic Enhanced Sentiment Spreading Model in Social Networks Considering User Interest
https://ojs.aaai.org/index.php/AAAI/article/view/5447
https://ojs.aaai.org/index.php/AAAI/article/download/5447/5303
[ "Xiaobao Wang", "Di Jin", "Katarzyna Musial", "Jianwu Dang" ]
Emotion is a complex emotional state, which can affect our physiology and psychology and lead to behavior changes. The spreading process of emotions in the text-based social networks is referred to as sentiment spreading. In this paper, we study an interesting problem of sentiment spreading in social networks. In parti...
main
Applications
10.1609/aaai.v34i01.5447
34
01
989-996
official
null
null
10.1609/aaai.v34i01.5448
HDK: Toward High-Performance Deep-Learning-Based Kirchhoff Analysis
https://ojs.aaai.org/index.php/AAAI/article/view/5448
https://ojs.aaai.org/index.php/AAAI/article/download/5448/5304
[ "Xinying Wang", "Olamide Timothy Tawose", "Feng Yan", "Dongfang Zhao" ]
The Kirchhoff law is one of the most widely used physical laws in many engineering principles, e.g., biomedical engineering, electrical engineering, and computer engineering. One challenge of applying the Kirchhoff law to real-world applications at scale lies in the high, if not prohibitive, computational cost to solve...
main
Applications
10.1609/aaai.v34i01.5448
34
01
997-1004
official
null
null
10.1609/aaai.v34i01.5449
Actor Critic Deep Reinforcement Learning for Neural Malware Control
https://ojs.aaai.org/index.php/AAAI/article/view/5449
https://ojs.aaai.org/index.php/AAAI/article/download/5449/5305
[ "Yu Wang", "Jack Stokes", "Mady Marinescu" ]
In addition to using signatures, antimalware products also detect malicious attacks by evaluating unknown files in an emulated environment, i.e. sandbox, prior to execution on a computer's native operating system. During emulation, a file cannot be scanned indefinitely, and antimalware engines often set the number of i...
main
Applications
10.1609/aaai.v34i01.5449
34
01
1005-1012
official
null
null
10.1609/aaai.v34i01.5450
Urban2Vec: Incorporating Street View Imagery and POIs for Multi-Modal Urban Neighborhood Embedding
https://ojs.aaai.org/index.php/AAAI/article/view/5450
https://ojs.aaai.org/index.php/AAAI/article/download/5450/5306
[ "Zhecheng Wang", "Haoyuan Li", "Ram Rajagopal" ]
Understanding intrinsic patterns and predicting spatiotemporal characteristics of cities require a comprehensive representation of urban neighborhoods. Existing works relied on either inter- or intra-region connectivities to generate neighborhood representations but failed to fully utilize the informative yet heterogen...
main
Applications
10.1609/aaai.v34i01.5450
34
01
1013-1020
official
2001.11101
title_snapshot
10.1609/aaai.v34i01.5451
Hiding in Multilayer Networks
https://ojs.aaai.org/index.php/AAAI/article/view/5451
https://ojs.aaai.org/index.php/AAAI/article/download/5451/5307
[ "Marcin Waniek", "Tomasz Michalak", "Talal Rahwan" ]
Multilayer networks allow for modeling complex relationships, where individuals are embedded in multiple social networks at the same time. Given the ubiquity of such relationships, these networks have been increasingly gaining attention in the literature. This paper presents the first analysis of the robustness of cent...
main
Applications
10.1609/aaai.v34i01.5451
34
01
1021-1028
official
1911.05947
title_snapshot
10.1609/aaai.v34i01.5453
DeepDualMapper: A Gated Fusion Network for Automatic Map Extraction Using Aerial Images and Trajectories
https://ojs.aaai.org/index.php/AAAI/article/view/5453
https://ojs.aaai.org/index.php/AAAI/article/download/5453/5309
[ "Hao Wu", "Hanyuan Zhang", "Xinyu Zhang", "Weiwei Sun", "Baihua Zheng", "Yuning Jiang" ]
Automatic map extraction is of great importance to urban computing and location-based services. Aerial image and GPS trajectory data refer to two different data sources that could be leveraged to generate the map, although they carry different types of information. Most previous works on data fusion between aerial imag...
main
Applications
10.1609/aaai.v34i01.5453
34
01
1037-1045
official
2002.06832
title_snapshot
10.1609/aaai.v34i01.5454
Accelerating and Improving AlphaZero Using Population Based Training
https://ojs.aaai.org/index.php/AAAI/article/view/5454
https://ojs.aaai.org/index.php/AAAI/article/download/5454/5310
[ "Ti-Rong Wu", "Ting-Han Wei", "I-Chen Wu" ]
AlphaZero has been very successful in many games. Unfortunately, it still consumes a huge amount of computing resources, the majority of which is spent in self-play. Hyperparameter tuning exacerbates the training cost since each hyperparameter configuration requires its own time to train one run, during which it will g...
main
Applications
10.1609/aaai.v34i01.5454
34
01
1046-1053
official
2003.06212
title_snapshot
10.1609/aaai.v34i01.5455
Graph Convolutional Networks with Markov Random Field Reasoning for Social Spammer Detection
https://ojs.aaai.org/index.php/AAAI/article/view/5455
https://ojs.aaai.org/index.php/AAAI/article/download/5455/5311
[ "Yongji Wu", "Defu Lian", "Yiheng Xu", "Le Wu", "Enhong Chen" ]
The recent growth of social networking platforms also led to the emergence of social spammers, who overwhelm legitimate users with unwanted content. The existing social spammer detection methods can be characterized into two categories: features based ones and propagation-based ones. Features based methods mainly rely ...
main
Applications
10.1609/aaai.v34i01.5455
34
01
1054-1061
official
null
null
10.1609/aaai.v34i01.5456
Generative Adversarial Regularized Mutual Information Policy Gradient Framework for Automatic Diagnosis
https://ojs.aaai.org/index.php/AAAI/article/view/5456
https://ojs.aaai.org/index.php/AAAI/article/download/5456/5312
[ "Yuan Xia", "Jingbo Zhou", "Zhenhui Shi", "Chao Lu", "Haifeng Huang" ]
Automatic diagnosis systems have attracted increasing attention in recent years. The reinforcement learning (RL) is an attractive technique for building an automatic diagnosis system due to its advantages for handling sequential decision making problem. However, the RL method still cannot achieve good enough prediction...
main
Applications
10.1609/aaai.v34i01.5456
34
01
1062-1069
official
null
null
10.1609/aaai.v34i01.5457
Generate (Non-Software) Bugs to Fool Classifiers
https://ojs.aaai.org/index.php/AAAI/article/view/5457
https://ojs.aaai.org/index.php/AAAI/article/download/5457/5313
[ "Hiromu Yakura", "Youhei Akimoto", "Jun Sakuma" ]
In adversarial attacks intended to confound deep learning models, most studies have focused on limiting the magnitude of the modification so that humans do not notice the attack. On the other hand, during an attack against autonomous cars, for example, most drivers would not find it strange if a small insect image were...
main
Applications
10.1609/aaai.v34i01.5457
34
01
1070-1078
official
1911.08644
title_snapshot
10.1609/aaai.v34i01.5458
Fairness-Aware Demand Prediction for New Mobility
https://ojs.aaai.org/index.php/AAAI/article/view/5458
https://ojs.aaai.org/index.php/AAAI/article/download/5458/5314
[ "An Yan", "Bill Howe" ]
Emerging transportation modes, including car-sharing, bike-sharing, and ride-hailing, are transforming urban mobility yet have been shown to reinforce socioeconomic inequity. These services rely on accurate demand prediction, but the demand data on which these models are trained reflect biases around demographics, soci...
main
Applications
10.1609/aaai.v34i01.5458
34
01
1079-1087
official
null
null
10.1609/aaai.v34i01.5459
Beyond Digital Domain: Fooling Deep Learning Based Recognition System in Physical World
https://ojs.aaai.org/index.php/AAAI/article/view/5459
https://ojs.aaai.org/index.php/AAAI/article/download/5459/5315
[ "Kaichen Yang", "Tzungyu Tsai", "Honggang Yu", "Tsung-Yi Ho", "Yier Jin" ]
Adversarial examples that can fool deep neural network (DNN) models in computer vision present a growing threat. The current methods of launching adversarial attacks concentrate on attacking image classifiers by adding noise to digital inputs. The problem of attacking object detection models and adversarial attacks in ...
main
Applications
10.1609/aaai.v34i01.5459
34
01
1088-1095
official
null
null
10.1609/aaai.v34i01.5460
Scalable and Generalizable Social Bot Detection through Data Selection
https://ojs.aaai.org/index.php/AAAI/article/view/5460
https://ojs.aaai.org/index.php/AAAI/article/download/5460/5316
[ "Kai-Cheng Yang", "Onur Varol", "Pik-Mai Hui", "Filippo Menczer" ]
Efficient and reliable social bot classification is crucial for detecting information manipulation on social media. Despite rapid development, state-of-the-art bot detection models still face generalization and scalability challenges, which greatly limit their applications. In this paper we propose a framework that use...
main
Applications
10.1609/aaai.v34i01.5460
34
01
1096-1103
official
1911.09179
title_snapshot
10.1609/aaai.v34i01.5437
Effective Decoding in Graph Auto-Encoder Using Triadic Closure
https://ojs.aaai.org/index.php/AAAI/article/view/5437
https://ojs.aaai.org/index.php/AAAI/article/download/5437/5293
[ "Han Shi", "Haozheng Fan", "James T. Kwok" ]
The (variational) graph auto-encoder and its variants have been popularly used for representation learning on graph-structured data. While the encoder is often a powerful graph convolutional network, the decoder reconstructs the graph structure by only considering two nodes at a time, thus ignoring possible interaction...
main
Applications
10.1609/aaai.v34i01.5437
34
01
906-913
official
1911.11322
title_snapshot
10.1609/aaai.v34i01.5440
DATA-GRU: Dual-Attention Time-Aware Gated Recurrent Unit for Irregular Multivariate Time Series
https://ojs.aaai.org/index.php/AAAI/article/view/5440
https://ojs.aaai.org/index.php/AAAI/article/download/5440/5296
[ "Qingxiong Tan", "Mang Ye", "Baoyao Yang", "Siqi Liu", "Andy Jinhua Ma", "Terry Cheuk-Fung Yip", "Grace Lai-Hung Wong", "PongChi Yuen" ]
Due to the discrepancy of diseases and symptoms, patients usually visit hospitals irregularly and different physiological variables are examined at each visit, producing large amounts of irregular multivariate time series (IMTS) data with missing values and varying intervals. Existing methods process IMTS into regular ...
main
Applications
10.1609/aaai.v34i01.5440
34
01
930-937
official
null
null
10.1609/aaai.v34i01.5439
Continuous Multiagent Control Using Collective Behavior Entropy for Large-Scale Home Energy Management
https://ojs.aaai.org/index.php/AAAI/article/view/5439
https://ojs.aaai.org/index.php/AAAI/article/download/5439/5295
[ "Jianwen Sun", "Yan Zheng", "Jianye Hao", "Zhaopeng Meng", "Yang Liu" ]
With the increasing popularity of electric vehicles, distributed energy generation and storage facilities in smart grid systems, an efficient Demand-Side Management (DSM) is urgent for energy savings and peak loads reduction. Traditional DSM works focusing on optimizing the energy activities for a single household can ...
main
Applications
10.1609/aaai.v34i01.5439
34
01
922-929
official
2005.10000
title_snapshot
10.1609/aaai.v34i01.5438
Spatial-Temporal Synchronous Graph Convolutional Networks: A New Framework for Spatial-Temporal Network Data Forecasting
https://ojs.aaai.org/index.php/AAAI/article/view/5438
https://ojs.aaai.org/index.php/AAAI/article/download/5438/5294
[ "Chao Song", "Youfang Lin", "Shengnan Guo", "Huaiyu Wan" ]
Spatial-temporal network data forecasting is of great importance in a huge amount of applications for traffic management and urban planning. However, the underlying complex spatial-temporal correlations and heterogeneities make this problem challenging. Existing methods usually use separate components to capture spatia...
main
Applications
10.1609/aaai.v34i01.5438
34
01
914-921
official
null
null
10.1609/aaai.v34i01.5436
Spatial Classification with Limited Observations Based on Physics-Aware Structural Constraint
https://ojs.aaai.org/index.php/AAAI/article/view/5436
https://ojs.aaai.org/index.php/AAAI/article/download/5436/5292
[ "Arpan Man Sainju", "Wenchong He", "Zhe Jiang", "Da Yan" ]
Spatial classification with limited feature observations has been a challenging problem in machine learning. The problem exists in applications where only a subset of sensors are deployed at certain regions or partial responses are collected in field surveys. Existing research mostly focuses on addressing incomplete or...
main
Applications
10.1609/aaai.v34i01.5436
34
01
898-905
official
2009.01072
title_snapshot
10.1609/aaai.v34i01.5421
Towards Cross-Modality Medical Image Segmentation with Online Mutual Knowledge Distillation
https://ojs.aaai.org/index.php/AAAI/article/view/5421
https://ojs.aaai.org/index.php/AAAI/article/download/5421/5277
[ "Kang Li", "Lequan Yu", "Shujun Wang", "Pheng-Ann Heng" ]
The success of deep convolutional neural networks is partially attributed to the massive amount of annotated training data. However, in practice, medical data annotations are usually expensive and time-consuming to be obtained. Considering multi-modality data with the same anatomic structures are widely available in cl...
main
Applications
10.1609/aaai.v34i01.5421
34
01
775-783
official
2010.01532
title_snapshot
10.1609/aaai.v34i01.5422
Privacy-Preserving Gradient Boosting Decision Trees
https://ojs.aaai.org/index.php/AAAI/article/view/5422
https://ojs.aaai.org/index.php/AAAI/article/download/5422/5278
[ "Qinbin Li", "Zhaomin Wu", "Zeyi Wen", "Bingsheng He" ]
The Gradient Boosting Decision Tree (GBDT) is a popular machine learning model for various tasks in recent years. In this paper, we study how to improve model accuracy of GBDT while preserving the strong guarantee of differential privacy. Sensitivity and privacy budget are two key design aspects for the effectiveness o...
main
Applications
10.1609/aaai.v34i01.5422
34
01
784-791
official
1911.04209
title_snapshot
10.1609/aaai.v34i01.5423
MRI Reconstruction with Interpretable Pixel-Wise Operations Using Reinforcement Learning
https://ojs.aaai.org/index.php/AAAI/article/view/5423
https://ojs.aaai.org/index.php/AAAI/article/download/5423/5279
[ "Wentian Li", "Xidong Feng", "Haotian An", "Xiang Yao Ng", "Yu-Jin Zhang" ]
Compressed sensing magnetic resonance imaging (CS-MRI) is a technique aimed at accelerating the data acquisition of MRI. While down-sampling in k-space proportionally reduces the data acquisition time, it results in images corrupted by aliasing artifacts and blur. To reconstruct images from the down-sampled k-space, re...
main
Applications
10.1609/aaai.v34i01.5423
34
01
792-799
official
null
null
10.1609/aaai.v34i01.5424
PSENet: Psoriasis Severity Evaluation Network
https://ojs.aaai.org/index.php/AAAI/article/view/5424
https://ojs.aaai.org/index.php/AAAI/article/download/5424/5280
[ "Yi Li", "Zhe Wu", "Shuang Zhao", "Xian Wu", "Yehong Kuang", "Yangtian Yan", "Shen Ge", "Kai Wang", "Wei Fan", "Xiang Chen", "Yong Wang" ]
Psoriasis is a chronic skin disease which affects hundreds of millions of people around the world. This disease cannot be fully cured and requires lifelong caring. If the deterioration of Psoriasis is not detected and properly treated in time, it could cause serious complications or even lead to a life threat. Therefor...
main
Applications
10.1609/aaai.v34i01.5424
34
01
800-807
official
null
null
10.1609/aaai.v34i01.5425
Learning Geo-Contextual Embeddings for Commuting Flow Prediction
https://ojs.aaai.org/index.php/AAAI/article/view/5425
https://ojs.aaai.org/index.php/AAAI/article/download/5425/5281
[ "Zhicheng Liu", "Fabio Miranda", "Weiting Xiong", "Junyan Yang", "Qiao Wang", "Claudio Silva" ]
Predicting commuting flows based on infrastructure and land-use information is critical for urban planning and public policy development. However, it is a challenging task given the complex patterns of commuting flows. Conventional models, such as gravity model, are mainly derived from physics principles and limited by...
main
Applications
10.1609/aaai.v34i01.5425
34
01
808-816
official
2005.01690
title_snapshot
10.1609/aaai.v34i01.5426
Learning Multi-Modal Biomarker Representations via Globally Aligned Longitudinal Enrichments
https://ojs.aaai.org/index.php/AAAI/article/view/5426
https://ojs.aaai.org/index.php/AAAI/article/download/5426/5282
[ "Lyujian Lu", "Saad Elbeleidy", "Lauren Zoe Baker", "Hua Wang" ]
Alzheimer's Disease (AD) is a chronic neurodegenerative disease that severely impacts patients' thinking, memory and behavior. To aid automatic AD diagnoses, many longitudinal learning models have been proposed to predict clinical outcomes and/or disease status, which, though, often fail to consider missing temporal ph...
main
Applications
10.1609/aaai.v34i01.5426
34
01
817-824
official
null
null
10.1609/aaai.v34i01.5427
AdaCare: Explainable Clinical Health Status Representation Learning via Scale-Adaptive Feature Extraction and Recalibration
https://ojs.aaai.org/index.php/AAAI/article/view/5427
https://ojs.aaai.org/index.php/AAAI/article/download/5427/5283
[ "Liantao Ma", "Junyi Gao", "Yasha Wang", "Chaohe Zhang", "Jiangtao Wang", "Wenjie Ruan", "Wen Tang", "Xin Gao", "Xinyu Ma" ]
Deep learning-based health status representation learning and clinical prediction have raised much research interest in recent years. Existing models have shown superior performance, but there are still several major issues that have not been fully taken into consideration. First, the historical variation pattern of th...
main
Applications
10.1609/aaai.v34i01.5427
34
01
825-832
official
1911.12205
title_snapshot
10.1609/aaai.v34i01.5428
ConCare: Personalized Clinical Feature Embedding via Capturing the Healthcare Context
https://ojs.aaai.org/index.php/AAAI/article/view/5428
https://ojs.aaai.org/index.php/AAAI/article/download/5428/5284
[ "Liantao Ma", "Chaohe Zhang", "Yasha Wang", "Wenjie Ruan", "Jiangtao Wang", "Wen Tang", "Xinyu Ma", "Xin Gao", "Junyi Gao" ]
Predicting the patient's clinical outcome from the historical electronic medical records (EMR) is a fundamental research problem in medical informatics. Most deep learning-based solutions for EMR analysis concentrate on learning the clinical visit embedding and exploring the relations between visits. Although those wor...
main
Applications
10.1609/aaai.v34i01.5428
34
01
833-840
official
1911.12216
title_snapshot
10.1609/aaai.v34i01.5430
Gait Recognition for Co-Existing Multiple People Using Millimeter Wave Sensing
https://ojs.aaai.org/index.php/AAAI/article/view/5430
https://ojs.aaai.org/index.php/AAAI/article/download/5430/5286
[ "Zhen Meng", "Song Fu", "Jie Yan", "Hongyuan Liang", "Anfu Zhou", "Shilin Zhu", "Huadong Ma", "Jianhua Liu", "Ning Yang" ]
Gait recognition, i.e., recognizing persons from their walking postures, has found versatile applications in security check, health monitoring, and novel human-computer interaction. The millimeter-wave (mmWave) based gait recognition represents the most recent advance. Compared with traditional camera-based solutions, ...
main
Applications
10.1609/aaai.v34i01.5430
34
01
849-856
official
null
null
10.1609/aaai.v34i01.5431
Generalizable Resource Allocation in Stream Processing via Deep Reinforcement Learning
https://ojs.aaai.org/index.php/AAAI/article/view/5431
https://ojs.aaai.org/index.php/AAAI/article/download/5431/5287
[ "Xiang Ni", "Jing Li", "Mo Yu", "Wang Zhou", "Kun-Lung Wu" ]
This paper considers the problem of resource allocation in stream processing, where continuous data flows must be processed in real time in a large distributed system. To maximize system throughput, the resource allocation strategy that partitions the computation tasks of a stream processing graph onto computing device...
main
Applications
10.1609/aaai.v34i01.5431
34
01
857-864
official
1911.08517
title_snapshot
10.1609/aaai.v34i01.5432
ActiveThief: Model Extraction Using Active Learning and Unannotated Public Data
https://ojs.aaai.org/index.php/AAAI/article/view/5432
https://ojs.aaai.org/index.php/AAAI/article/download/5432/5288
[ "Soham Pal", "Yash Gupta", "Aditya Shukla", "Aditya Kanade", "Shirish Shevade", "Vinod Ganapathy" ]
Machine learning models are increasingly being deployed in practice. Machine Learning as a Service (MLaaS) providers expose such models to queries by third-party developers through application programming interfaces (APIs). Prior work has developed model extraction attacks, in which an attacker extracts an approximatio...
main
Applications
10.1609/aaai.v34i01.5432
34
01
865-872
official
null
null
10.1609/aaai.v34i01.5433
Chemically Interpretable Graph Interaction Network for Prediction of Pharmacokinetic Properties of Drug-Like Molecules
https://ojs.aaai.org/index.php/AAAI/article/view/5433
https://ojs.aaai.org/index.php/AAAI/article/download/5433/5289
[ "Yashaswi Pathak", "Siddhartha Laghuvarapu", "Sarvesh Mehta", "U. Deva Priyakumar" ]
Solubility of drug molecules is related to pharmacokinetic properties such as absorption and distribution, which affects the amount of drug that is available in the body for its action. Computational or experimental evaluation of solvation free energies of drug-like molecules/solute that quantify solubilities is an ard...
main
Applications
10.1609/aaai.v34i01.5433
34
01
873-880
official
null
null