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Learning an effective policy to control high-dimensional, overactuated systems is a significant challenge for deep reinforcement learning algorithms. Such control scenarios are often observed in the neural control of vertebrate…

Robotics · Computer Science 2024-12-30 Kaibo He , Chenhui Zuo , Chengtian Ma , Yanan Sui

Representation learning on graphs has emerged as a powerful mechanism to automate feature vector generation for downstream machine learning tasks. The advances in representation on graphs have centered on both homogeneous and heterogeneous…

Machine Learning · Statistics 2020-11-23 Piotr Bielak , Kamil Tagowski , Maciej Falkiewicz , Tomasz Kajdanowicz , Nitesh V. Chawla

Deep learning model effectiveness in classification tasks is often challenged by the quality and quantity of training data whenever they are affected by strong spurious correlations between specific attributes and target labels. This…

Learning latent representations of nodes in graphs is an important and ubiquitous task with widespread applications such as link prediction, node classification, and graph visualization. Previous methods on graph representation learning…

Machine Learning · Computer Science 2019-06-18 Aravind Sankar , Yanhong Wu , Liang Gou , Wei Zhang , Hao Yang

Sequential Recommendation is a widely studied paradigm for learning users' dynamic interests from historical interactions for predicting the next potential item. Although lots of research work has achieved remarkable progress, they are…

Information Retrieval · Computer Science 2023-03-02 Yongqiang Han , Likang Wu , Hao Wang , Guifeng Wang , Mengdi Zhang , Zhi Li , Defu Lian , Enhong Chen

Multi-agent reinforcement Learning (MARL) is often challenged by the sight range dilemma, where agents either receive insufficient or excessive information from their environment. In this paper, we propose a novel method, called Dynamic…

Multiagent Systems · Computer Science 2025-05-20 Wei-Chen Liao , Ti-Rong Wu , I-Chen Wu

Recent advancement in web services plays an important role in business to business and business to consumer interaction. Discovery mechanism is not only used to find a suitable service but also provides collaboration between service…

Artificial Intelligence · Computer Science 2010-04-28 Saba Bashir , Farhan Hassan Khan , M. Younus Javed , Aihab Khan , Malik Sikandar Hayat Khiyal

Recommender systems (RSs) are software tools and algorithms developed to alleviate the problem of information overload, which makes it difficult for a user to make right decisions. Two main paradigms toward the recommendation problem are…

Information Retrieval · Computer Science 2021-05-24 Mehdi Afsar , Trafford Crump , Behrouz Far

Multi-step agentic retrieval systems based on large language models (LLMs) have demonstrated remarkable performance in complex information search tasks. However, these systems still face significant challenges in practical applications,…

Machine Learning · Computer Science 2025-10-16 Chuzhan Hao , Wenfeng Feng , Yuewei Zhang , Hao Wang

High dimensional data analysis for exploration and discovery includes three fundamental tasks: dimensionality reduction, clustering, and visualization. When the three associated tasks are done separately, as is often the case thus far,…

Machine Learning · Computer Science 2020-12-02 Stan Z. Li , Lirong Wu , Zelin Zang

Disentangled representation learning aims to capture the underlying explanatory factors of observed data, enabling a principled understanding of the data-generating process. Recent advances in generative modeling have introduced new…

Machine Learning · Computer Science 2026-05-12 Jinjin Chi , Taoping Liu , Mengtao Yin , Ximing Li , Yongcheng Jing , Jialie Shen , Leszek Rutkowski , Dacheng Tao

In today's digital landscape, Deep Recommender Systems (DRS) play a crucial role in navigating and customizing online content for individual preferences. However, conventional methods, which mainly depend on single recommendation task,…

Information Retrieval · Computer Science 2025-03-03 Xiangyu Zhao , Yichao Wang , Bo Chen , Jingtong Gao , Yuhao Wang , Xiaopeng Li , Pengyue Jia , Qidong Liu , Huifeng Guo , Ruiming Tang

Recommender systems have been extensively used by the entertainment industry, business marketing and the biomedical industry. In addition to its capacity of providing preference-based recommendations as an unsupervised learning methodology,…

Methodology · Statistics 2020-03-13 Yanqing Zhang , Xuan Bi , Niansheng Tang , Annie Qu

Sequential recommendation is an advanced recommendation technique that utilizes the sequence of user behaviors to generate personalized suggestions by modeling the temporal dependencies and patterns in user preferences. However, it requires…

Information Retrieval · Computer Science 2025-04-09 Yichen Li , Qiyu Qin , Gaoyang Zhu , Wenchao Xu , Haozhao Wang , Yuhua Li , Rui Zhang , Ruixuan Li

With the prevalence of social networks on online platforms, social recommendation has become a vital technique for enhancing personalized recommendations. The effectiveness of social recommendations largely relies on the social homophily…

Social and Information Networks · Computer Science 2025-08-28 Chengyi Liu , Jiahao Zhang , Shijie Wang , Wenqi Fan , Qing Li

Color-guided depth map super-resolution (CDSR) improve the spatial resolution of a low-quality depth map with the corresponding high-quality color map, benefiting various applications such as 3D reconstruction, virtual reality, and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Yuan Shi , Bin Xia , Rui Zhu , Qingmin Liao , Wenming Yang

Multivariate time-series data in numerous real-world applications (e.g., healthcare and industry) are informative but challenging due to the lack of labels and high dimensionality. Recent studies in self-supervised learning have shown their…

Machine Learning · Computer Science 2024-07-18 Ching Chang , Chiao-Tung Chan , Wei-Yao Wang , Wen-Chih Peng , Tien-Fu Chen

Unsupervised representation learning for dynamic graphs has attracted a lot of research attention in recent years. Compared with static graph, the dynamic graph is a comprehensive embodiment of both the intrinsic stable characteristics of…

Social and Information Networks · Computer Science 2023-08-17 Kaike Zhang , Qi Cao , Gaolin Fang , Bingbing Xu , Hongjian Zou , Huawei Shen , Xueqi Cheng

Reasoning about complex visual scenes involves perception of entities and their relations. Scene graphs provide a natural representation for reasoning tasks, by assigning labels to both entities (nodes) and relations (edges). Unfortunately,…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Moshiko Raboh , Roei Herzig , Gal Chechik , Jonathan Berant , Amir Globerson

Deep Learning (DL) models have achieved superior performance in many application domains, including vision, language, medical, commercial ads, entertainment, etc. With the fast development, both DL applications and the underlying serving…

Machine Learning · Computer Science 2022-02-22 Fuxun Yu , Di Wang , Longfei Shangguan , Minjia Zhang , Xulong Tang , Chenchen Liu , Xiang Chen