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A significant remaining challenge for existing recommender systems is that users may not trust the recommender systems for either lack of explanation or inaccurate recommendation results. Thus, it becomes critical to embrace a trustworthy…

Information Retrieval · Computer Science 2020-10-07 Manqing Dong , Feng Yuan , Lina Yao , Xianzhi Wang , Xiwei Xu , Liming Zhu

NFTs (Non-Fungible Tokens) have experienced an explosive growth and their record-breaking prices have been witnessed. Typically, the assets that NFTs represent are stored off-chain with a pointer, e.g., multi-hop URLs, due to the costly…

Cryptography and Security · Computer Science 2022-12-22 Ziwei Wang , Jiashi Gao , Xuetao Wei

This work formulates a novel song recommender system as a matrix completion problem that benefits from collaborative filtering through Non-negative Matrix Factorization (NMF) and content-based filtering via total variation (TV) on graphs.…

Machine Learning · Statistics 2016-01-14 Kirell Benzi , Vassilis Kalofolias , Xavier Bresson , Pierre Vandergheynst

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

We propose HHFT (Hierarchical Heterogeneous Feature Transformer), a Transformer-based architecture tailored for industrial CTR prediction. HHFT addresses the limitations of DNN through three key designs: (1) Semantic Feature Partitioning:…

Information Retrieval · Computer Science 2025-12-16 Liren Yu , Wenming Zhang , Silu Zhou , Tao Zhang , Zhixuan Zhang , Dan Ou

Collaborative filtering is a broad and powerful framework for building recommendation systems that has seen widespread adoption. Over the past decade, the propensity of such systems for favoring popular products and thus creating echo…

Information Retrieval · Computer Science 2017-02-20 Arda Antikacioglu , R Ravi

Recommendations Systems allow users to identify trending items among a community while being timely and relevant to the user's expectations. When the purpose of various Recommendation Systems differs, the required type of recommendations…

Information Retrieval · Computer Science 2022-05-05 Dinuka Ravijaya Piyadigama , Guhanathan Poravi

Recommender system is one of the most important information services on today's Internet. Recently, graph neural networks have become the new state-of-the-art approach to recommender systems. In this survey, we conduct a comprehensive…

Information Retrieval · Computer Science 2023-01-13 Chen Gao , Yu Zheng , Nian Li , Yinfeng Li , Yingrong Qin , Jinghua Piao , Yuhan Quan , Jianxin Chang , Depeng Jin , Xiangnan He , Yong Li

Recommender systems play a pivotal role in helping users navigate an overwhelming selection of products and services. On online platforms, users have the opportunity to share feedback in various modes, including numerical ratings, textual…

Information Retrieval · Computer Science 2025-05-27 Emrul Hasan , Mizanur Rahman , Chen Ding , Jimmy Xiangji Huang , Shaina Raza

Recommender systems are emerging technologies that nowadays can be found in many applications such as Amazon, Netflix, and so on. These systems help users to find relevant information, recommendations, and their preferred items. Slightly…

Machine Learning · Computer Science 2013-08-05 Nima Mirbakhsh , Charles X. Ling

This paper identifies the factors that have an impact on mobile recommender systems. Recommender systems have become a technology that has been widely used by various online applications in situations where there is an information overload…

Information Retrieval · Computer Science 2018-05-08 Elias Pimenidis , Nikolaos Polatidis , Haralambos Mouratidis

Recommender systems (RSs) have emerged as very useful tools to help customers with their decision-making process, find items of their interest, and alleviate the information overload problem. There are two different lines of approaches in…

Information Retrieval · Computer Science 2021-07-06 Shahpar Yakhchi

Click-through rate (CTR) prediction serves as a cornerstone of recommender systems. Despite the strong performance of current CTR models based on user behavior modeling, they are still severely limited by interaction sparsity, especially in…

Information Retrieval · Computer Science 2025-09-03 Yutian Xiao , Shukuan Wang , Binhao Wang , Zhao Zhang , Yanze Zhang , Shanqi Liu , Chao Feng , Xiang Li , Fuzhen Zhuang

Crypto donations now represent a significant fraction of charitable giving worldwide. Nonfungible token (NFT) charity fundraisers, which involve the sale of NFTs of artistic works with the proceeds donated to philanthropic causes, have…

General Economics · Economics 2026-02-27 Chen Liang , Murat Tunc , Gordon Burtch

Recommender systems (RS) have become essential in filtering information and personalizing content for users. RS techniques have traditionally relied on modeling interactions between users and items as well as the features of content using…

Information Retrieval · Computer Science 2025-04-24 Chengkai Huang , Hongtao Huang , Tong Yu , Kaige Xie , Junda Wu , Shuai Zhang , Julian Mcauley , Dietmar Jannach , Lina Yao

We present the Multi-vAlue Rule Set (MARS) model for interpretable classification with feature efficient presentations. MARS introduces a more generalized form of association rules that allows multiple values in a condition. Rules of this…

Artificial Intelligence · Computer Science 2017-10-17 Tong Wang

Recommendation systems (RecSys) suggest items to users by predicting their preferences based on historical data. Typical RecSys handle large embedding tables and many embedding table related operations. The memory size and bandwidth of the…

Hardware Architecture · Computer Science 2022-02-22 Mengyuan Li , Ann Franchesca Laguna , Dayane Reis , Xunzhao Yin , Michael Niemier , Xiaobo Sharon Hu

Trust-based recommender systems improve rating prediction with respect to Collaborative Filtering by leveraging the additional information provided by a trust network among users to deal with the cold start problem. However, they are…

Information Retrieval · Computer Science 2019-09-05 Liliana Ardissono , Noemi Mauro

Academic research in the field of recommender systems mainly focuses on the problem of maximizing the users' utility by trying to identify the most relevant items for each user. However, such items are not necessarily the ones that maximize…

Information Retrieval · Computer Science 2017-07-26 Dietmar Jannach , Gediminas Adomavicius

Attacks targeting several millions of non-internet based application users are on the rise. These applications such as SMS and USSD typically do not benefit from existing multi-factor authentication methods due to the nature of their…

Cryptography and Security · Computer Science 2020-10-16 Andrew Kinai , Fred Otieno , Nelson Bore , Komminist Weldemariam