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Recommenders take place on a wide scale of e-commerce systems, reducing the problem of information overload. The most common approach is to choose a recommender used by the system to make predictions. However, users vary from each other;…

Information Retrieval · Computer Science 2024-10-18 Peter Tibensky , Michal Kompan

Most existing recommender systems leverage user behavior data of one type only, such as the purchase behavior in E-commerce that is directly related to the business KPI (Key Performance Indicator) of conversion rate. Besides the key…

Information Retrieval · Computer Science 2020-02-11 Chen Gao , Xiangnan He , Dahua Gan , Xiangning Chen , Fuli Feng , Yong Li , Tat-Seng Chua , Lina Yao , Yang Song , Depeng Jin

Graph Neural Networks (GNNs) have opened up a potential line of research for collaborative filtering (CF). The key power of GNNs is based on injecting collaborative signal into user and item embeddings which will contain information about…

Information Retrieval · Computer Science 2025-03-28 Loc Tan Nguyen , Tin T. Tran

User-item interactions in recommendations can be naturally de-noted as a user-item bipartite graph. Given the success of graph neural networks (GNNs) in graph representation learning, GNN-based C methods have been proposed to advance…

Information Retrieval · Computer Science 2022-01-06 Yiqi Wang , Chaozhuo Li , Mingzheng Li , Wei Jin , Yuming Liu , Hao Sun , Xing Xie , Jiliang Tang

The trend of data mining using deep learning models on graph neural networks has proven effective in identifying object features through signal encoders and decoders, particularly in recommendation systems utilizing collaborative filtering…

Information Retrieval · Computer Science 2025-03-27 Manh Mai Van , Tin T. Tran

Intelligent recommendation systems have clearly increased the revenue of well-known e-commerce firms. Users receive product recommendations from recommendation systems. Cinematic recommendations are made to users by a movie recommendation…

Information Retrieval · Computer Science 2026-03-02 Rohit Chivukula , T. Jaya Lakshmi , Hemlata Sharma , C. H. S. N. P. Sairam Rallabandi

Providing model-generated explanations in recommender systems is important to user experience. State-of-the-art recommendation algorithms - especially collaborative filtering (CF)-based approaches with shallow or deep models - usually work…

Information Retrieval · Computer Science 2019-01-23 Qingyao Ai , Vahid Azizi , Xu Chen , Yongfeng Zhang

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

A collaborative filtering recommender system predicts user preferences by discovering common features among users and items. We implement such inference using a Bayesian double feature allocation model, that is, a model for random pairs of…

Methodology · Statistics 2022-02-03 Qiaohui Lin , Peter Mueller

Collaborative filtering is a popular approach in recommender systems, whose objective is to provide personalized item suggestions to potential users based on their purchase or browsing history. However, personalized recommendations require…

Information Retrieval · Computer Science 2023-12-07 Osama Alshareet , A. Ben Hamza

Multimodal recommendation systems (MMRS) have received considerable attention from the research community due to their ability to jointly utilize information from user behavior and product images and text. Previous research has two main…

Information Retrieval · Computer Science 2024-07-18 Guojiao Lin , Zhen Meng , Dongjie Wang , Qingqing Long , Yuanchun Zhou , Meng Xiao

Recommender models are commonly used to suggest relevant items to a user for e-commerce and online advertisement-based applications. These models use massive embedding tables to store numerical representation of items' and users'…

Information Retrieval · Computer Science 2024-03-19 Muhammad Adnan , Yassaman Ebrahimzadeh Maboud , Divya Mahajan , Prashant J. Nair

Graph Neural Networks (GNNs) have emerged as powerful tools for modeling graph-structured data and have been widely used in recommender systems, such as for capturing complex user-item and item-item relations. However, most industrial…

Machine Learning · Computer Science 2026-02-24 Rui Xue , Shichao Zhu , Liang Qin , Tianfu Wu

Collaborative filtering or recommender systems use a database about user preferences to predict additional topics or products a new user might like. In this paper we describe several algorithms designed for this task, including techniques…

Information Retrieval · Computer Science 2013-02-01 John S. Breese , David Heckerman , Carl Kadie

The burgeoning presence of Large Language Models (LLM) is propelling the development of personalized recommender systems. Most existing LLM-based methods fail to sufficiently explore the multi-view graph structure correlations inherent in…

Information Retrieval · Computer Science 2025-07-30 Xu Guo , Tong Zhang , Yuanzhi Wang , Chenxu Wang , Fuyun Wang , Xudong Wang , Xiaoya Zhang , Xin Liu , Zhen Cui

In the last decade we have observed a mass increase of information, in particular information that is shared through smartphones. Consequently, the amount of information that is available does not allow the average user to be aware of all…

Information Retrieval · Computer Science 2017-07-04 Akshay Kumar Chaturvedi , Filipa Peleja , Ana Freire

The purpose of this article is to introduce a new analytical framework dedicated to measuring performance of recommender systems. The standard approach is to assess the quality of a system by means of accuracy related statistics. However,…

Artificial Intelligence · Computer Science 2010-10-29 Szymon Chojnacki , Mieczysław Kłopotek

Sequential recommendation aims to choose the most suitable items for a user at a specific timestamp given historical behaviors. Existing methods usually model the user behavior sequence based on the transition-based methods like Markov…

Information Retrieval · Computer Science 2022-07-11 Zijian Li , Ruichu Cai , Fengzhu Wu , Sili Zhang , Hao Gu , Yuexing Hao , Yuguang

Multimodal Recommender Systems aim to improve recommendation accuracy by integrating heterogeneous content, such as images and textual metadata. While effective, it remains unclear whether their gains stem from true multimodal understanding…

Information Retrieval · Computer Science 2025-08-07 Claudio Pomo , Matteo Attimonelli , Danilo Danese , Fedelucio Narducci , Tommaso Di Noia

Student performance prediction is a critical research problem to understand the students' needs, present proper learning opportunities/resources, and develop the teaching quality. However, traditional machine learning methods fail to…

Machine Learning · Computer Science 2021-12-23 Yinkai Wang , Aowei Ding , Kaiyi Guan , Shixi Wu , Yuanqi Du