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Traditional recommender systems present a relatively static list of recommendations to a user where the feedback is typically limited to an accept/reject or a rating model. However, these simple modes of feedback may only provide limited…

Information Retrieval · Computer Science 2019-04-17 Oznur Alkan , Elizabeth M. Daly , Adi Botea

As one of the most pervasive applications of machine learning, recommender systems are playing an important role on assisting human decision making. The satisfaction of users and the interests of platforms are closely related to the quality…

Information Retrieval · Computer Science 2023-08-04 Yunqi Li , Hanxiong Chen , Shuyuan Xu , Yingqiang Ge , Juntao Tan , Shuchang Liu , Yongfeng Zhang

Interactive recommendation that models the explicit interactions between users and the recommender system has attracted a lot of research attentions in recent years. Most previous interactive recommendation systems only focus on optimizing…

Information Retrieval · Computer Science 2019-03-20 Yong Liu , Yinan Zhang , Qiong Wu , Chunyan Miao , Lizhen Cui , Binqiang Zhao , Yin Zhao , Lu Guan

Recommender systems often face heterogeneous datasets containing highly personalized historical data of users, where no single model could give the best recommendation for every user. We observe this ubiquitous phenomenon on both public and…

Information Retrieval · Computer Science 2020-05-06 Mi Luo , Fei Chen , Pengxiang Cheng , Zhenhua Dong , Xiuqiang He , Jiashi Feng , Zhenguo Li

Proper citation of relevant literature is essential for contextualising and validating scientific contributions. While current citation recommendation systems leverage local and global textual information, they often overlook the nuances of…

Information Retrieval · Computer Science 2026-04-15 Karan Goyal , Dikshant Kukreja , Vikram Goyal , Mukesh Mohania

Generative models are increasingly used in recommender systems, both for modeling user behavior as event sequences and for integrating large language models into recommendation pipelines. A key challenge in this setting is the extremely…

Information Retrieval · Computer Science 2026-02-19 Kirill Khrylchenko

The use of relevant metrics of software systems could improve various software engineering tasks, but identifying relationships among metrics is not simple and can be very time consuming. Recommender systems can help with this…

Software Engineering · Computer Science 2018-01-23 Maral Azizi , Hyunsook Do

Modern recommender systems aim to deeply understand users' complex preferences through their past interactions. While deep collaborative filtering approaches using Graph Neural Networks (GNNs) excel at capturing user-item relationships,…

Information Retrieval · Computer Science 2025-06-03 Yangqin Jiang , Yuhao Yang , Lianghao Xia , Da Luo , Kangyi Lin , Chao Huang

This paper addresses two persistent challenges in sequential recommendation: (i) evidence insufficiency-cold-start sparsity together with noisy, length-varying item texts; and (ii) opaque modeling of dynamic, multi-faceted intents across…

Information Retrieval · Computer Science 2026-04-29 Yuchen Miao , Mingxuan Cui , Yitong Zhu , Yu Wang , Siyang Xu

In this paper, we introduce a novel approach to improve the diversity of Top-N recommendations while maintaining accuracy. Our approach employs a user-centric pre-processing strategy aimed at exposing users to a wide array of content…

Information Retrieval · Computer Science 2025-02-05 Manel Slokom , Savvina Danil , Laura Hollink

While recent advancements in aligning Large Language Models (LLMs) with recommendation tasks have shown great potential and promising performance overall, these aligned recommendation LLMs still face challenges in complex scenarios. This is…

Information Retrieval · Computer Science 2025-02-18 Yi Fang , Wenjie Wang , Yang Zhang , Fengbin Zhu , Qifan Wang , Fuli Feng , Xiangnan He

Sequential recommendation involves automatically recommending the next item to users based on their historical item sequence. While most prior research employs RNN or transformer methods to glean information from the item…

Information Retrieval · Computer Science 2024-10-10 Xiaofan Zhou

The rise of generative models has driven significant advancements in recommender systems, leaving unique opportunities for enhancing users' personalized recommendations. This workshop serves as a platform for researchers to explore and…

Information Retrieval · Computer Science 2024-03-08 Wenjie Wang , Yang Zhang , Xinyu Lin , Fuli Feng , Weiwen Liu , Yong Liu , Xiangyu Zhao , Wayne Xin Zhao , Yang Song , Xiangnan He

The Explainable Recommendation task is designed to receive a pair of user and item and output explanations to justify why an item is recommended to a user. Many models approach review generation as a proxy for explainable recommendations.…

Machine Learning · Computer Science 2025-05-27 Ching-Wen Yang , Zhi-Quan Feng , Ying-Jia Lin , Che-Wei Chen , Kun-da Wu , Hao Xu , Jui-Feng Yao , Hung-Yu Kao

We introduce a new convolutional AutoEncoder architecture for user modelling and recommendation tasks with several improvements over the state of the art. Firstly, our model has the flexibility to learn a set of associations and…

Machine Learning · Computer Science 2025-09-10 Antoine Ledent , Petr Kasalický , Rodrigo Alves , Hady W. Lauw

Ordinal user-provided ratings across multiple items are frequently encountered in both scientific and commercial applications. Whilst recommender systems are known to do well on these type of data from a predictive point of view, their…

Methodology · Statistics 2025-03-05 Sjoerd Hermes

In recent years, text-aware collaborative filtering methods have been proposed to address essential challenges in recommendations such as data sparsity, cold start problem, and long-tail distribution. However, many of these text-oriented…

Information Retrieval · Computer Science 2020-09-01 Zhimeng Pan , Wenzheng Tao , Qingyao Ai

In a news recommender system, a reader's preferences change over time. Some preferences drift quite abruptly (short-term preferences), while others change over a longer period of time (long-term preferences). Although the existing news…

Information Retrieval · Computer Science 2021-03-24 Shaina Raza

Generative Recommendation has emerged as a transformative paradigm, reformulating recommendation as an end-to-end autoregressive sequence generation task. Despite its promise, existing preference optimization methods typically rely on…

Information Retrieval · Computer Science 2026-02-13 Chenxiao Fan , Chongming Gao , Yaxin Gong , Haoyan Liu , Fuli Feng , Xiangnan He

In recent years, the research community has raised serious questions about the reproducibility of scientific work. In particular, since many studies include some kind of computing work, reproducibility is also a technological challenge, not…

Software Engineering · Computer Science 2023-08-03 Lázaro Costa , Susana Barbosa , Jácome Cunha