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The increasing complexity of deep learning recommendation models (DLRM) has led to a growing need for large-scale distributed systems that can efficiently train vast amounts of data. In DLRM, the sparse embedding table is a crucial…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-08-07 Xin Zhang , Quanyu Zhu , Liangbei Xu , Zain Huda , Wang Zhou , Jin Fang , Dennis van der Staay , Yuxi Hu , Jade Nie , Jiyan Yang , Chunzhi Yang

Predicting user actions based on anonymous sessions is a challenge to general recommendation systems because the lack of user profiles heavily limits data-driven models. Recently, session-based recommendation methods have achieved…

Information Retrieval · Computer Science 2019-10-31 Yujia Zheng , Siyi Liu , Zailei Zhou

Statistical heterogeneity is a root cause of tension among accuracy, fairness, and robustness of federated learning (FL), and is key in paving a path forward. Personalized FL (PFL) is an approach that aims to reduce the impact of…

Machine Learning · Computer Science 2024-07-24 Shengkun Zhu , Jinshan Zeng , Sheng Wang , Yuan Sun , Xiaodong Li , Yuan Yao , Zhiyong Peng

Recommender systems is set up to address the issue of information overload in traditional information retrieval systems, which is focused on recommending information that is of most interest to users from massive information. Generally,…

Information Retrieval · Computer Science 2026-02-27 Xiaoqing Chen , Zhitao Li , Weike Pan , Zhong Ming

Recommender systems have played a vital role in online platforms due to the ability of incorporating users' personal tastes. Beyond accuracy, diversity has been recognized as a key factor in recommendation to broaden user's horizons as well…

Information Retrieval · Computer Science 2022-10-11 Yile Liang , Tieyun Qian

Sequential recommendation aims to identify and recommend the next few items for a user that the user is most likely to purchase/review, given the user's purchase/rating trajectories. It becomes an effective tool to help users select…

Information Retrieval · Computer Science 2021-01-05 Bo Peng , Zhiyun Ren , Srinivasan Parthasarathy , Xia Ning

Multisource domain adaptation (MDA) aims to use multiple source datasets with available labels to infer labels on a target dataset without available labels for target supervision. Prior works on MDA in the literature is ad-hoc as the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Alexander M. Glandon , Khan M. Iftekharuddin

Explainable recommendation is far from being well solved partly due to three challenges. The first is the personalization of preference learning, which requires that different items/users have different contributions to the learning of user…

Information Retrieval · Computer Science 2020-01-29 Huanrui Luo , Ning Yang , Philip S. Yu

Item indexing, which maps a large corpus of items into compact discrete representations, is critical for both discriminative and generative recommender systems, yet existing Vector Quantization (VQ)-based approaches struggle with the highly…

Information Retrieval · Computer Science 2026-01-29 Jing Yan , Yimeng Bai , Zongyu Liu , Yahui Liu , Junwei Wang , Jingze Huang , Haoda Li , Sihao Ding , Shaohui Ruan , Yang Zhang

Existing sequential recommendation methods rely on large amounts of training data and usually suffer from the data sparsity problem. To tackle this, the pre-training mechanism has been widely adopted, which attempts to leverage large-scale…

Information Retrieval · Computer Science 2021-02-23 Chaojun Xiao , Ruobing Xie , Yuan Yao , Zhiyuan Liu , Maosong Sun , Xu Zhang , Leyu Lin

Recent developments in generative models have enabled the generation of photo-realistic human face images, and downstream tasks utilizing face generation technology have advanced accordingly. However, models for downstream tasks are yet…

Computer Vision and Pattern Recognition · Computer Science 2023-07-03 Bryan S. Kim , Jeong Young Jeong , Wonjong Ryu

Session-based recommendation (SR) aims to dynamically recommend items to a user based on a sequence of the most recent user-item interactions. Most existing studies on SR adopt advanced deep learning methods. However, the majority only…

Information Retrieval · Computer Science 2024-01-17 Huizi Wu , Cong Geng , Hui Fang

This paper studies the joint optimization of edge node activation and resource pricing in edge computing, where an edge computing platform provides heterogeneous resources to accommodate multiple services with diverse preferences. We cast…

Optimization and Control · Mathematics 2025-07-15 Duong Thuy Anh Nguyen , Tarannum Nisha , Ni Trieu , Duong Tung Nguyen

Wireless federated learning (WFL) suffers from heterogeneity prevailing in the data distributions, computing powers, and channel conditions of participating devices. This paper presents a new Federated Learning with Adjusted leaRning ratE…

Signal Processing · Electrical Eng. & Systems 2024-04-24 Bingnan Xiao , Jingjing Zhang , Wei Ni , Xin Wang

Recommender systems can automatically recommend users with items that they probably like. The goal of them is to model the user-item interaction by effectively representing the users and items. Existing methods have primarily learned the…

Information Retrieval · Computer Science 2024-04-30 Xue Dong , Xuemeng Song , Na Zheng , Yinwei Wei , Zhongzhou Zhao

Generative Recommenders (GRs), exemplified by the Hierarchical Sequential Transduction Unit (HSTU), have emerged as a powerful paradigm for modeling long user interaction sequences. However, we observe that their "flat-sequence" assumption…

Information Retrieval · Computer Science 2026-03-03 Zerui Chen , Heng Chang , Tianying Liu , Chuantian Zhou , Yi Cao , Jiandong Ding , Ming Liu , Bing Qin

Motivation: Developing high-performing bioinformatics models typically requires repeated cycles of hypothesis formulation, architectural redesign, and empirical validation, making progress slow, labor-intensive, and difficult to reproduce.…

Multiagent Systems · Computer Science 2026-01-22 Sunghyun Kim , Seokwoo Yun , Youngseo Yun , Youngrak Lee , Sangsoo Lim

This article presents a novel approach to multimodal recommendation systems, focusing on integrating and purifying multimodal data. Our methodology starts by developing a filter to remove noise from various types of data, making the…

Information Retrieval · Computer Science 2024-05-30 Mert Burabak , Tevfik Aytekin

Modeling holistic user interests is important for improving recommendation systems but is challenged by high computational cost and difficulty in handling diverse information with full behavior context. Existing search-based methods might…

Information Retrieval · Computer Science 2025-04-10 Yong Bai , Rui Xiang , Kaiyuan Li , Yongxiang Tang , Yanhua Cheng , Xialong Liu , Peng Jiang , Kun Gai

Multi-modal sequential recommendation systems leverage auxiliary signals (e.g., text, images) to alleviate data sparsity in user-item interactions. While recent methods exploit large language models to encode modalities into discrete…

Information Retrieval · Computer Science 2025-04-10 Kaiyuan Li , Rui Xiang , Yong Bai , Yongxiang Tang , Yanhua Cheng , Xialong Liu , Peng Jiang , Kun Gai