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Meta-learning is used to efficiently enable the automatic selection of machine learning models by combining data and prior knowledge. Since the traditional meta-learning technique lacks explainability, as well as shortcomings in terms of…

Machine Learning · Computer Science 2022-06-14 Xinyue Shao , Hongzhi Wang , Xiao Zhu , Feng Xiong

Recommender systems (RS), which have been an essential part in a wide range of applications, can be formulated as a matrix completion (MC) problem. To boost the performance of MC, matrix completion with side information, called inductive…

Information Retrieval · Computer Science 2020-02-13 Kai-Lang Yao , Wu-Jun Li

Federated learning ensures the privacy of clients by conducting distributed training on individual client devices and sharing only the model weights with a central server. However, in real-world scenarios, the heterogeneity of data among…

Machine Learning · Computer Science 2024-04-30 Jaewon Jang , Bonjun Choi

Recommender systems (RSs) have become an inseparable part of our everyday lives. They help us find our favorite items to purchase, our friends on social networks, and our favorite movies to watch. Traditionally, the recommendation problem…

Information Retrieval · Computer Science 2022-06-09 M. Mehdi Afsar , Trafford Crump , Behrouz Far

Agentic recommendations cast recommenders as large language model (LLM) agents that can plan, reason, use tools, and interact with users of varying preferences in web applications. However, most existing agentic recommender systems focus on…

Computation and Language · Computer Science 2026-01-27 Yu Xia , Sungchul Kim , Tong Yu , Ryan A. Rossi , Julian McAuley

Collaborative Filtering is the most widely used prediction technique in Recommendation System. Most of the current CF recommender systems maintains single criteria user rating in user item matrix. However, recent studies indicate that…

Information Retrieval · Computer Science 2015-03-24 Dheeraj kumar Bokde , Sheetal Girase , Debajyoti Mukhopadhyay

In this paper we propose to solve an important problem in recommendation -- user cold start, based on meta leaning method. Previous meta learning approaches finetune all parameters for each new user, which is both computing and storage…

Information Retrieval · Computer Science 2019-12-10 Liang Zhao , Yang Wang , Daxiang Dong , Hao Tian

Large Language Models (LLMs) have been integrated into recommendation systems to enhance user behavior comprehension. The Retrieval Augmented Generation (RAG) technique is further incorporated into these systems to retrieve more relevant…

Information Retrieval · Computer Science 2025-02-12 Jian Xu , Sichun Luo , Xiangyu Chen , Haoming Huang , Hanxu Hou , Linqi Song

Federated learning (FL) has emerged as an effective approach to address consumer privacy needs. FL has been successfully applied to certain machine learning tasks, such as training smart keyboard models and keyword spotting. Despite FL's…

Information Retrieval · Computer Science 2022-06-09 Meisam Hejazinia , Dzmitry Huba , Ilias Leontiadis , Kiwan Maeng , Mani Malek , Luca Melis , Ilya Mironov , Milad Nasr , Kaikai Wang , Carole-Jean Wu

Traditional Collaborative Filtering (CF) based methods are applied to understand the personal preferences of users/customers for items or products from the rating matrix. Usually, the rating matrix is sparse in nature. So there are some…

Information Retrieval · Computer Science 2022-10-12 Supriyo Mandal , Abyayananda Maiti

Collaborative Metric Learning (CML) has recently emerged as a popular method in recommendation systems (RS), closing the gap between metric learning and Collaborative Filtering. Following the convention of RS, existing methods exploit…

Information Retrieval · Computer Science 2022-10-03 Shilong Bao , Qianqian Xu , Zhiyong Yang , Yuan He , Xiaochun Cao , Qingming Huang

Existing Collaborative Filtering (CF) methods are mostly designed based on the idea of matching, i.e., by learning user and item embeddings from data using shallow or deep models, they try to capture the associative relevance patterns in…

Information Retrieval · Computer Science 2021-05-04 Hanxiong Chen , Shaoyun Shi , Yunqi Li , Yongfeng Zhang

Meta-learning approaches have shown great success in vision and language domains. However, few studies discuss the practice of meta-learning for large-scale industrial applications. Although e-commerce companies have spent many efforts on…

Machine Learning · Computer Science 2020-10-12 Hao Gong , Qifang Zhao , Tianyu Li , Derek Cho , DuyKhuong Nguyen

Sequential Recommendation (SR) in multimodal settings typically relies on small frozen pretrained encoders, which limits semantic capacity and prevents Collaborative Filtering (CF) signals from being fully integrated into item…

Information Retrieval · Computer Science 2026-03-19 Junyoung Kim , Woojoo Kim , Jaehyung Lim , Dongha Kim , Hwanjo Yu

Players in the online ad ecosystem are struggling to acquire the user data required for precise targeting. Audience look-alike modeling has the potential to alleviate this issue, but models' performance strongly depends on quantity and…

Information Retrieval · Computer Science 2018-01-03 Simon Stiebellehner , Jun Wang , Shuai Yuan

Every day, a significant number of users visit the internet for different needs. The owners of a website generate profits from the user interaction with the contents or items of the website. A robust recommendation system can increase user…

Information Retrieval · Computer Science 2025-12-18 Abdullah Al Munem , Sumona Yeasmin , Mohammad Rezwanul Huq

Existing multi-view representation learning methods typically follow a specific-to-uniform pipeline, extracting latent features from each view and then fusing or aligning them to obtain the unified object representation. However, the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Ren Wang , Haoliang Sun , Yuling Ma , Xiaoming Xi , Yilong Yin

In recent years, representation learning has become the research focus of the machine learning community. Large-scale neural networks are a crucial step toward achieving general intelligence, with their success largely attributed to their…

Machine Learning · Computer Science 2025-04-22 Lifeng Gu

In Machine Learning scenarios, privacy is a crucial concern when models have to be trained with private data coming from users of a service, such as a recommender system, a location-based mobile service, a mobile phone text messaging…

Machine Learning · Computer Science 2020-07-20 Vito Walter Anelli , Yashar Deldjoo , Tommaso Di Noia , Antonio Ferrara

Recent advancements in Large Language Models (LLMs) have attracted considerable interest among researchers to leverage these models to enhance Recommender Systems (RSs). Existing work predominantly utilizes LLMs to generate knowledge-rich…

Information Retrieval · Computer Science 2024-07-25 Zhongxiang Sun , Zihua Si , Xiaoxue Zang , Kai Zheng , Yang Song , Xiao Zhang , Jun Xu