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Recommender systems (RSs) provide an effective way of alleviating the information overload problem by selecting personalized items for different users. Latent factors based collaborative filtering (CF) has become the popular approaches for…

Information Retrieval · Computer Science 2021-01-15 Guang-Neng Hu , Xin-Yu Dai , Feng-Yu Qiu , Rui Xia , Tao Li , Shu-Jian Huang , Jia-Jun Chen

Federated recommendation aims to collect global knowledge by aggregating local models from massive devices, to provide recommendations while ensuring privacy. Current methods mainly leverage aggregation functions invented by federated…

Cryptography and Security · Computer Science 2024-06-07 Honglei Zhang , Haoxuan Li , Jundong Chen , Sen Cui , Kunda Yan , Abudukelimu Wuerkaixi , Xin Zhou , Zhiqi Shen , Yidong Li

Even in times of deep learning, low-rank approximations by factorizing a matrix into user and item latent factors continue to be a method of choice for collaborative filtering tasks due to their great performance. While deep learning based…

Information Retrieval · Computer Science 2019-05-31 Marcel Kurovski , Florian Wilhelm

Recommendation systems play a vital role to keep users engaged with personalized content in modern online platforms. Deep learning has revolutionized many research fields and there is a recent surge of interest in applying it to…

Information Retrieval · Computer Science 2018-06-22 Travis Ebesu , Bin Shen , Yi Fang

As Internet of Things (IoT) technology advances, end devices like sensors and smartphones are progressively equipped with AI models tailored to their local memory and computational constraints. Local inference reduces communication costs…

Machine Learning · Computer Science 2024-08-22 Caelin Kaplan , Angelo Rodio , Tareq Si Salem , Chuan Xu , Giovanni Neglia

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

The recent work by Rendle et al. (2020), based on empirical observations, argues that matrix-factorization collaborative filtering (MCF) compares favorably to neural collaborative filtering (NCF), and conjectures the dot product's…

Information Retrieval · Computer Science 2021-10-26 Da Xu , Chuanwei Ruan , Evren Korpeoglu , Sushant Kumar , Kannan Achan

Federated learning (FL) is an innovative distributed artificial intelligence (AI) technique. It has been used for interdisciplinary studies in different fields such as healthcare, marketing and finance. However the application of FL in…

Networking and Internet Architecture · Computer Science 2024-11-08 Han Zhang , Medhat Elsayed , Majid Bavand , Raimundas Gaigalas , Yigit Ozcan , Melike Erol-Kantarci

The increasing interest in user privacy is leading to new privacy preserving machine learning paradigms. In the Federated Learning paradigm, a master machine learning model is distributed to user clients, the clients use their locally…

Information Retrieval · Computer Science 2019-01-30 Muhammad Ammad-ud-din , Elena Ivannikova , Suleiman A. Khan , Were Oyomno , Qiang Fu , Kuan Eeik Tan , Adrian Flanagan

Based on the user-item bipartite network, collaborative filtering (CF) recommender systems predict users' interests according to their history collections, which is a promising way to solve the information exploration problem. However, CF…

Data Analysis, Statistics and Probability · Physics 2011-12-13 Zhao-Guo Xuan , Zhan Li , Jian-Guo Liu

Federated Learning (FL) enables privacy-preserving collaborative model training, but its effectiveness is often limited by client data heterogeneity. We introduce a client-selection algorithm that (i) dynamically forms nonoverlapping…

Machine Learning · Computer Science 2025-10-16 Alessandro Licciardi , Roberta Raineri , Anton Proskurnikov , Lamberto Rondoni , Lorenzo Zino

The growth of Internet commerce has stimulated the use of collaborative filtering (CF) algorithms as recommender systems. Such systems leverage knowledge about the known preferences of multiple users to recommend items of interest to other…

Information Retrieval · Computer Science 2013-01-18 David M. Pennock , Eric J. Horvitz , Steve Lawrence , C. Lee Giles

A growing proportion of human interactions are digitized on social media platforms and subjected to algorithmic decision-making, and it has become increasingly important to ensure fair treatment from these algorithms. In this work, we…

Information Retrieval · Computer Science 2020-09-21 Rashidul Islam , Kamrun Naher Keya , Ziqian Zeng , Shimei Pan , James Foulds

In this paper, several Collaborative Filtering (CF) approaches with latent variable methods were studied using user-item interactions to capture important hidden variations of the sparse customer purchasing behaviours. The latent factors…

Information Retrieval · Computer Science 2020-12-14 Karthik Raja Kalaiselvi Bhaskar , Deepa Kundur , Yuri Lawryshyn

State-of-the-art recommendation algorithms -- especially the collaborative filtering (CF) based approaches with shallow or deep models -- usually work with various unstructured information sources for recommendation, such as textual…

Information Retrieval · Computer Science 2018-09-18 Yongfeng Zhang , Qingyao Ai , Xu Chen , Pengfei Wang

The success of graph neural network-based models (GNNs) has significantly advanced recommender systems by effectively modeling users and items as a bipartite, undirected graph. However, many original graph-based works often adopt results…

Information Retrieval · Computer Science 2024-05-28 Vito Walter Anelli , Daniele Malitesta , Claudio Pomo , Alejandro Bellogín , Tommaso Di Noia , Eugenio Di Sciascio

The application of machine learning techniques to large-scale personalized recommendation problems is a challenging task. Such systems must make sense of enormous amounts of implicit feedback in order to understand user preferences across…

Information Retrieval · Computer Science 2019-01-15 Thom Lake , Sinead A. Williamson , Alexander T. Hawk , Christopher C. Johnson , Benjamin P. Wing

Personalized recommendation is widely used in the web applications, and graph contrastive learning (GCL) has gradually become a dominant approach in recommender systems, primarily due to its ability to extract self-supervised signals from…

Information Retrieval · Computer Science 2025-04-15 Yu Zhang , Yiwen Zhang , Yi Zhang , Lei Sang , Yun Yang

Cooperative inference across independently deployed machine learning models is increasingly desirable in distributed environments, as there is a growing need to leverage multiple models while keeping their data and model parameters private.…

Machine Learning · Computer Science 2026-05-08 Yui Hashimoto , Takayuki Nishio , Yuichi Kitagawa , Takahito Tanimura

Short-term tracking is an open and challenging problem for which discriminative correlation filters (DCF) have shown excellent performance. We introduce the channel and spatial reliability concepts to DCF tracking and provide a novel…

Computer Vision and Pattern Recognition · Computer Science 2019-01-15 Alan Lukežič , Tomáš Vojíř , Luka Čehovin , Jiří Matas , Matej Kristan