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Latent variable models are widely used in social and behavioural sciences, including education, psychology, and political science. With the increasing availability of large and complex datasets, high-dimensional latent variable models have…

Computation · Statistics 2025-12-09 Motonori Oka , Yunxiao Chen , Irini Moustaki

Multi-task learning (MTL) has been widely used in recommender systems, wherein predicting each type of user feedback on items (e.g, click, purchase) are treated as individual tasks and jointly trained with a unified model. Our key…

Information Retrieval · Computer Science 2022-03-29 Chenxiao Yang , Junwei Pan , Xiaofeng Gao , Tingyu Jiang , Dapeng Liu , Guihai Chen

With the growing imbalance between limited medical resources and escalating demands, AI-based clinical tasks have become paramount. As a sub-domain, medication recommendation aims to amalgamate longitudinal patient history with medical…

Artificial Intelligence · Computer Science 2023-11-28 Xiang Li , Shunpan Liang , Yulei Hou , Tengfei Ma

Multi-modal models have shown a promising capability to effectively integrate information from various sources, yet meanwhile, they are found vulnerable to pervasive perturbations, such as uni-modal attacks and missing conditions. To…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Zequn Yang , Yake Wei , Ce Liang , Di Hu

Robust controllers that stabilize dynamical systems even under disturbances and noise are often formulated as solutions of nonsmooth, nonconvex optimization problems. While methods such as gradient sampling can handle the nonconvexity and…

Optimization and Control · Mathematics 2023-05-01 Steffen W. R. Werner , Michael L. Overton , Benjamin Peherstorfer

In this paper, we consider hybrid parallelism -- a paradigm that employs both Data Parallelism (DP) and Model Parallelism (MP) -- to scale distributed training of large recommendation models. We propose a compression framework called…

This paper addresses the cooperative Multi-Vehicle Dynamic Pickup and Delivery Problem with Stochastic Requests (MVDPDPSR) and proposes an end-to-end centralized decision-making framework based on sequence-to-sequence, named Multi-Agent…

Machine Learning · Computer Science 2025-12-18 Zengyu Zou , Jingyuan Wang , Yixuan Huang , Junjie Wu

The rapid adoption of large language models and multimodal foundation models has made multimodal data preparation pipelines critical AI infrastructure. These pipelines interleave CPU-heavy preprocessing with accelerator-backed (GPU/NPU/TPU)…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-03-03 Ding Pan , Zhuangzhuang Zhou , Long Qian , Binhang Yuan

Solving practical multi-depot vehicle routing problems (MDVRP) is a challenging optimization task central to modern logistics, increasingly driven by e-commerce. To address the MDVRP's computational complexity, neural-based combinatorial…

Machine Learning · Computer Science 2026-05-01 Arthur Corrêa , Paulo Nascimento , Samuel Moniz

A common challenge in personalized user preference prediction is the cold-start problem. Due to the lack of user-item interactions, directly learning from the new users' log data causes serious over-fitting problem. Recently, many existing…

Information Retrieval · Computer Science 2020-12-23 Runsheng Yu , Yu Gong , Xu He , Bo An , Yu Zhu , Qingwen Liu , Wenwu Ou

Existing drift detection methods focus on designing sensitive test statistics. They treat the detection threshold as a fixed hyperparameter, set once to balance false alarms and late detections, and applied uniformly across all datasets and…

Machine Learning · Computer Science 2025-11-14 Pengqian Lu , Jie Lu , Anjin Liu , En Yu , Guangquan Zhang

Cross-domain Recommendation systems leverage multi-domain user interactions to improve performance, especially in sparse data or new user scenarios. However, CDR faces challenges such as effectively capturing user preferences and avoiding…

Information Retrieval · Computer Science 2024-10-10 Junxiong Tong , Mingjia Yin , Hao Wang , Qiushi Pan , Defu Lian , Enhong Chen

Click-Through Rate (CTR) prediction on cold users is a challenging task in recommender systems. Recent researches have resorted to meta-learning to tackle the cold-user challenge, which either perform few-shot user representation learning…

Information Retrieval · Computer Science 2022-10-31 Yanyan Shen , Lifan Zhao , Weiyu Cheng , Zibin Zhang , Wenwen Zhou , Kangyi Lin

While recent advances in preference learning have enhanced alignment in human feedback, mathematical reasoning remains a persistent challenge. We investigate how data diversification strategies in preference optimization can improve the…

Artificial Intelligence · Computer Science 2025-07-04 Berkan Dokmeci , Qingyang Wu , Ben Athiwaratkun , Ce Zhang , Shuaiwen Leon Song , James Zou

Dynamic scheduling is an important problem in applications from queuing to wireless networks. It addresses how to choose an item among multiple scheduling items in each timestep to achieve a long-term goal. Conventional approaches for…

Machine Learning · Computer Science 2022-01-26 Hyun-Suk Lee

With the expansion of business scenarios, real recommender systems are facing challenges in dealing with the constantly emerging new tasks in multi-task learning frameworks. In this paper, we attempt to improve the generalization ability of…

Information Retrieval · Computer Science 2024-09-02 Ting Bai , Le Huang , Yue Yu , Cheng Yang , Cheng Hou , Zhe Zhao , Chuan Shi

We propose advances that address two key challenges in future trajectory prediction: (i) multimodality in both training data and predictions and (ii) constant time inference regardless of number of agents. Existing trajectory predictions…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Sriram N N , Buyu Liu , Francesco Pittaluga , Manmohan Chandraker

In the information age, recommendation systems are vital for efficiently filtering information and identifying user preferences. Online social platforms have enriched these systems by providing valuable auxiliary information. Socially…

Artificial Intelligence · Computer Science 2024-06-18 Dezhao Yang , Jianghong Ma , Shanshan Feng , Haijun Zhang , Zhao Zhang

Personalized recommendation serves as a ubiquitous channel for users to discover information tailored to their interests. However, traditional recommendation models primarily rely on unique IDs and categorical features for user-item…

Information Retrieval · Computer Science 2024-07-04 Qijiong Liu , Jieming Zhu , Yanting Yang , Quanyu Dai , Zhaocheng Du , Xiao-Ming Wu , Zhou Zhao , Rui Zhang , Zhenhua Dong

Object-level data association is central to robotic applications such as tracking-by-detection and object-level simultaneous localization and mapping. While current learned visual data association methods outperform hand-crafted algorithms,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Yorai Shaoul , Katherine Liu , Kyel Ok , Nicholas Roy