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Click-through rate (CTR) prediction is one of the core tasks in recommender systems. User behavior sequences, as one of the most effective features, can accurately reflect user preferences and significantly improve prediction accuracy.…

Information Retrieval · Computer Science 2026-04-28 Xiaolong Chen , Haoyi Zhao , Xu Huang , Defu Lian

Sequential recommendation is one of the important branches of recommender system, aiming to achieve personalized recommended items for the future through the analysis and prediction of users' ordered historical interactive behaviors.…

Information Retrieval · Computer Science 2024-05-09 Zeyu Hu , Yuzhi Xiao , Tao Huang , Xuanrong Huo

Sequential recommendation is dedicated to offering items of interest for users based on their history behaviors. The attribute-opinion pairs, expressed by users in their reviews for items, provide the potentials to capture user preferences…

Information Retrieval · Computer Science 2024-04-22 Xiaokun Zhang , Bo Xu , Youlin Wu , Yuan Zhong , Hongfei Lin , Fenglong Ma

In this work, we propose a Unified framework of Sequential Search and Recommendation (UnifiedSSR) for joint learning of user behavior history in both search and recommendation scenarios. Specifically, we consider user-interacted products in…

Information Retrieval · Computer Science 2023-10-24 Jiayi Xie , Shang Liu , Gao Cong , Zhenzhong Chen

In sequential recommendation, models recommend items based on user's interaction history. To this end, current models usually incorporate information such as item descriptions and user intent or preferences. User preferences are usually not…

Training recommender systems for next-item recommendation often requires unique embeddings to be learned for each item, which may take up most of the trainable parameters for a model. Shared embeddings, such as using content information,…

Information Retrieval · Computer Science 2025-07-28 M. Jeffrey Mei , Florian Henkel , Samuel E. Sandberg , Oliver Bembom , Andreas F. Ehmann

This paper addresses the challenge of jointly modeling user intent diversity and behavioral uncertainty in recommender systems. A unified representation learning framework is proposed. The framework builds a multi-intent representation…

Information Retrieval · Computer Science 2025-09-08 Wei Xu , Jiasen Zheng , Junjiang Lin , Mingxuan Han , Junliang Du

Sequential recommender systems aim to model users' evolving interests from their historical behaviors, and hence make customized time-relevant recommendations. Compared with traditional models, deep learning approaches such as CNN and RNN…

Information Retrieval · Computer Science 2021-03-08 Chang Liu , Xiaoguang Li , Guohao Cai , Zhenhua Dong , Hong Zhu , Lifeng Shang

Different from most conventional recommendation problems, sequential recommendation focuses on learning users' preferences by exploiting the internal order and dependency among the interacted items, which has received significant attention…

Information Retrieval · Computer Science 2025-03-14 Liwei Pan , Weike Pan , Meiyan Wei , Hongzhi Yin , Zhong Ming

Given e-commerce scenarios that user profiles are invisible, session-based recommendation is proposed to generate recommendation results from short sessions. Previous work only considers the user's sequential behavior in the current…

Information Retrieval · Computer Science 2017-11-15 Jing Li , Pengjie Ren , Zhumin Chen , Zhaochun Ren , Jun Ma

In the Click-Through Rate (CTR) prediction scenario, user's sequential behaviors are well utilized to capture the user interest in the recent literature. However, despite being extensively studied, these sequential methods still suffer from…

Information Retrieval · Computer Science 2021-11-04 Kai Zhang , Hao Qian , Qing Cui , Qi Liu , Longfei Li , Jun Zhou , Jianhui Ma , Enhong Chen

Bundle recommendation aims to suggest a set of interconnected items to users. However, diverse interaction types and sparse interaction matrices often pose challenges for previous approaches in accurately predicting user-bundle adoptions.…

Information Retrieval · Computer Science 2024-12-25 Tuan-Nghia Bui , Huy-Son Nguyen , Cam-Van Nguyen Thi , Hoang-Quynh Le , Duc-Trong Le

Repeat consumption, such as repurchasing items and relistening songs, is a common scenario in daily life. To model repeat consumption, the repeat-aware recommendation has been proposed to predict which item will be re-interacted based on…

Information Retrieval · Computer Science 2025-06-11 Shigang Quan , Shui Liu , Zhenzhe Zheng , Fan Wu

Recommender systems often operate on item catalogs clustered by genres, and user bases that have natural clusterings into user types by demographic or psychographic attributes. Prior work on system-wide diversity has mainly focused on…

Information Retrieval · Computer Science 2019-08-28 Arda Antikacioglu , Tanvi Bajpai , R. Ravi

Recommender systems are indispensable in the realm of online applications, and sequential recommendation has enjoyed considerable prevalence due to its capacity to encapsulate the dynamic shifts in user interests. However, previous…

Information Retrieval · Computer Science 2024-04-16 Junzhe Jiang , Shang Qu , Mingyue Cheng , Qi Liu , Zhiding Liu , Hao Zhang , Rujiao Zhang , Kai Zhang , Rui Li , Jiatong Li , Min Gao

In e-commerce, where users face a vast array of possible item choices, recommender systems are vital for helping them discover suitable items they might otherwise overlook. While many recommender systems primarily rely on a user's purchase…

Information Retrieval · Computer Science 2025-08-29 Kyungho Kim , Sunwoo Kim , Geon Lee , Kijung Shin

Recommending items that solely cater to users' historical interests narrows users' horizons. Recent works have considered steering target users beyond their historical interests by directly adjusting items exposed to them. However, the…

Information Retrieval · Computer Science 2026-01-01 Hang Pan , Shuxian Bi , Wenjie Wang , Haoxuan Li , Peng Wu , Fuli Feng

Attributed network embedding aims to learn low-dimensional vector representations for nodes in a network, where each node contains rich attributes/features describing node content. Because network topology structure and node attributes…

Social and Information Networks · Computer Science 2018-10-17 Daokun Zhang , Jie Yin , Xingquan Zhu , Chengqi Zhang

Multi-interest candidate matching plays a pivotal role in personalized recommender systems, as it captures diverse user interests from their historical behaviors. Most existing methods utilize attention mechanisms to generate interest…

Information Retrieval · Computer Science 2025-02-14 Yankun Le , Haoran Li , Baoyuan Ou , Yingjie Qin , Zhixuan Yang , Ruilong Su , Fu Zhang

The rapid growth of short videos has necessitated effective recommender systems to match users with content tailored to their evolving preferences. Current video recommendation models primarily treat each video as a whole, overlooking the…

Information Retrieval · Computer Science 2025-05-06 Zhiyu He , Zhixin Ling , Jiayu Li , Zhiqiang Guo , Weizhi Ma , Xinchen Luo , Min Zhang , Guorui Zhou