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In this study, we introduce Convolutional Transformer Neural Collaborative Filtering (CTNCF), a novel approach aimed at enhancing recommendation systems by effectively capturing high-order structural information in user-item interactions.…

Artificial Intelligence · Computer Science 2024-12-03 Pang Li , Shahrul Azman Mohd Noah , Hafiz Mohd Sarim

Collaborative filtering (CF) is one of the most popular approaches to build a recommendation system. In this paper, we propose a hybrid collaborative filtering model based on a Makovian random walk to address the data sparsity and cold…

Information Retrieval · Computer Science 2013-05-21 Shang Shang , Sanjeev R. Kulkarni , Paul W. Cuff , Pan Hui

Existing item-based collaborative filtering (ICF) methods leverage only the relation of collaborative similarity. Nevertheless, there exist multiple relations between items in real-world scenarios. Distinct from the collaborative similarity…

Information Retrieval · Computer Science 2019-05-14 Xin Xin , Xiangnan He , Yongfeng Zhang , Yongdong Zhang , Joemon Jose

Recommendation systems typically require centralized user data, limiting user control and raising privacy concerns. Federated learning offers an alternative by keeping data on-device, but its impact on real user behavior remains largely…

Information Retrieval · Computer Science 2026-05-14 Manel Slokom , Alejandro Bellogin

Recommender systems are mostly well known for their applications in e-commerce sites and are mostly static models. Classical personalized recommender algorithm includes item-based collaborative filtering method applied in Amazon, matrix…

Information Retrieval · Computer Science 2016-07-12 Zhiyuan Fang , Lingqi Zhang , Kun Chen

How to make the best decision between the opinions and tastes of your friends and acquaintances? Therefore, recommender systems are used to solve such issues. The common algorithms use a similarity measure to predict active users' tastes…

Information Retrieval · Computer Science 2019-08-16 Mostafa Khalaji , Nilufar Mohammadnejad

Graph collaborative filtering (GCF) is a popular technique for capturing high-order collaborative signals in recommendation systems. However, GCF's bipartite adjacency matrix, which defines the neighbors being aggregated based on user-item…

Information Retrieval · Computer Science 2023-04-12 Ziwei Fan , Ke Xu , Zhang Dong , Hao Peng , Jiawei Zhang , Philip S. Yu

Recently, there has been an emergence of employing LLM-powered agents as believable human proxies, based on their remarkable decision-making capability. However, existing studies mainly focus on simulating human dialogue. Human non-verbal…

Information Retrieval · Computer Science 2023-10-16 Junjie Zhang , Yupeng Hou , Ruobing Xie , Wenqi Sun , Julian McAuley , Wayne Xin Zhao , Leyu Lin , Ji-Rong Wen

Many bipartite networks describe systems where an edge represents a relation between a user and an item. Measuring the similarity between either users or items is the basis of memory-based collaborative filtering, a widely used method to…

Information Retrieval · Computer Science 2023-05-09 Giambattista Albora , Lavinia Rossi-Mori , Andrea Zaccaria

To foster an active and engaged community, social networks employ recommendation algorithms that filter large amounts of contents and provide a user with personalized views of the network. Popular social networks such as Facebook and…

Information Retrieval · Computer Science 2018-11-26 Jan Trienes , Andrés Torres Cano , Djoerd Hiemstra

Deep neural networks have shown promise in collaborative filtering (CF). However, existing neural approaches are either user-based or item-based, which cannot leverage all the underlying information explicitly. We propose CF-UIcA, a neural…

Machine Learning · Computer Science 2018-07-06 Chao Du , Chongxuan Li , Yin Zheng , Jun Zhu , Bo Zhang

Similar product recommendation is one of the most common scenes in e-commerce. Many recommendation algorithms such as item-to-item Collaborative Filtering are working on measuring item similarities. In this paper, we introduce our real-time…

Information Retrieval · Computer Science 2020-04-14 Zhi Liu , Yan Huang , Jing Gao , Li Chen , Dong Li

Graph Neural Networks (GNNs) have been shown as promising solutions for collaborative filtering (CF) with the modeling of user-item interaction graphs. The key idea of existing GNN-based recommender systems is to recursively perform the…

Information Retrieval · Computer Science 2022-08-01 Lianghao Xia , Chao Huang , Chuxu Zhang

Recommendation Systems apply Information Retrieval techniques to select the online information relevant to a given user. Collaborative Filtering is currently most widely used approach to build Recommendation System. CF techniques uses the…

Information Retrieval · Computer Science 2015-03-26 Dheeraj kumar Bokde , Sheetal Girase , Debajyoti Mukhopadhyay

Introducing consumed items as users' implicit feedback in matrix factorization (MF) method, SVD++ is one of the most effective collaborative filtering methods for personalized recommender systems. Though powerful, SVD++ has two limitations:…

Information Retrieval · Computer Science 2018-03-12 Minzhe Niu , Weinan Zhang , Yanru Qu , Xuezhi Cao , Ruiming Tang , Xiuqiang He , Yong Yu

Machine learning methods allow us to make recommendations to users in applications across fields including entertainment, dating, and commerce, by exploiting similarities in users' interaction patterns. However, in domains that demand…

Information Retrieval · Computer Science 2020-03-03 Mónica Ribero , Jette Henderson , Sinead Williamson , Haris Vikalo

Available recommender systems mostly provide recommendations based on the users preferences by utilizing traditional methods such as collaborative filtering which only relies on the similarities between users and items. However,…

Information Retrieval · Computer Science 2015-08-10 Kasra Madadipouya

Social bookmarking and tagging has emerged a new era in user collaboration. Collaborative Tagging allows users to annotate content of their liking, which via the appropriate algorithms can render useful for the provision of product…

Social and Information Networks · Computer Science 2014-10-21 Georgios Pitsilis , Wei Wang

In many businesses, and particularly in finance, the behavior of a client might drastically change over time. It is consequently crucial for recommender systems used in such environments to be able to adapt to these changes. In this study,…

Machine Learning · Computer Science 2021-03-01 Baptiste Barreau , Laurent Carlier

Recommender systems rely on Collaborative Filtering (CF) to predict user preferences by leveraging patterns in historical user-item interactions. While traditional CF methods primarily focus on learning compact vector embeddings for users…

Information Retrieval · Computer Science 2025-01-29 Darnbi Sakong , Thanh Trung Huynh , Jun Jo