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Click-through rate (CTR) prediction is critical for industrial applications such as recommender system and online advertising. Practically, it plays an important role for CTR modeling in these applications by mining user interest from rich…

Information Retrieval · Computer Science 2019-05-27 Qi Pi , Weijie Bian , Guorui Zhou , Xiaoqiang Zhu , Kun Gai

In the implicit feedback recommendation, incorporating short-term preference into recommender systems has attracted increasing attention in recent years. However, unexpected behaviors in historical interactions like clicking some items by…

Artificial Intelligence · Computer Science 2021-12-22 Jie Chen , Lifen Jiang , Chunmei Ma , Huazhi Sun

Recommender systems have become integral to our digital experiences, from online shopping to streaming platforms. Still, the rationale behind their suggestions often remains opaque to users. While some systems employ a graph-based approach,…

We consider the problem of aligning a large language model (LLM) to model the preferences of a human population. Modeling the beliefs, preferences, and behaviors of a specific population can be useful for a variety of different…

Computation and Language · Computer Science 2024-04-01 Keiichi Namikoshi , Alex Filipowicz , David A. Shamma , Rumen Iliev , Candice L. Hogan , Nikos Arechiga

Recommender systems are highly prevalent in the modern world due to their value to both users and platforms and services that employ them. Generally, they can improve the user experience and help to increase satisfaction, but they do not…

Machine Learning · Computer Science 2022-03-22 Matthew Sparr

In recent years, knowledge graphs have been integrated into recommender systems as item-side auxiliary information, enhancing recommendation accuracy. However, constructing and integrating structural user-side knowledge remains a…

Information Retrieval · Computer Science 2024-12-19 Zheng Hu , Zhe Li , Ziyun Jiao , Satoshi Nakagawa , Jiawen Deng , Shimin Cai , Tao Zhou , Fuji Ren

Personalized recommendation serves as a ubiquitous channel for users to discover information tailored to their interests. However, traditional recommendation models primarily rely on unique IDs and categorical features for user-item…

Information Retrieval · Computer Science 2024-07-04 Qijiong Liu , Jieming Zhu , Yanting Yang , Quanyu Dai , Zhaocheng Du , Xiao-Ming Wu , Zhou Zhao , Rui Zhang , Zhenhua Dong

User embeddings (vectorized representations of a user) are essential in recommendation systems. Numerous approaches have been proposed to construct a representation for the user in order to find similar items for retrieval tasks, and they…

Information Retrieval · Computer Science 2023-05-29 Hui Shi , Yupeng Gu , Yitong Zhou , Bo Zhao , Sicun Gao , Jishen Zhao

Accurately modeling user preferences is crucial for improving the performance of content-based recommender systems. Existing approaches often rely on simplistic user profiling methods, such as averaging or concatenating item embeddings,…

Information Retrieval · Computer Science 2025-08-13 Milad Sabouri , Masoud Mansoury , Kun Lin , Bamshad Mobasher

The closed feedback loop in recommender systems is a common setting that can lead to different types of biases. Several studies have dealt with these biases by designing methods to mitigate their effect on the recommendations. However, most…

Information Retrieval · Computer Science 2020-09-01 Sami Khenissi , Mariem Boujelbene , Olfa Nasraoui

Fine-tuned language models have been shown to exhibit biases against protected groups in a host of modeling tasks such as text classification and coreference resolution. Previous works focus on detecting these biases, reducing bias in data…

Computation and Language · Computer Science 2021-04-13 Xisen Jin , Francesco Barbieri , Brendan Kennedy , Aida Mostafazadeh Davani , Leonardo Neves , Xiang Ren

User interests are usually dynamic in the real world, which poses both theoretical and practical challenges for learning accurate preferences from rich behavior data. Among existing user behavior modeling solutions, attention networks are…

Information Retrieval · Computer Science 2022-04-14 Chao Chen , Haoyu Geng , Nianzu Yang , Junchi Yan , Daiyue Xue , Jianping Yu , Xiaokang Yang

Recommender systems are personalized information systems. However, in many settings, the end-user of the recommendations is not the only party whose needs must be represented in recommendation generation. Incorporating this insight gives…

Information Retrieval · Computer Science 2017-07-31 Robin Burke , Himan Abdollahpouri

Large Language Model (LLM)-powered web GUI agents are increasingly automating everyday online tasks. Despite their popularity, little is known about how users' preferences and values impact agents' reasoning and behavior. In this work, we…

Recommender systems rely heavily on user feedback to learn effective user and item representations. Despite their widespread adoption, limited attention has been given to the uncertainty inherent in the feedback used to train these systems.…

Information Retrieval · Computer Science 2025-05-06 Bruno Sguerra , Viet-Anh Tran , Romain Hennequin , Manuel Moussallam

Many studies have shown that there are regularities in the way human beings make decisions. However, our ability to obtain models that capture such regularities and can accurately predict unobserved decisions is still limited. We tackle…

General Finance · Quantitative Finance 2021-03-11 Gael Poux-Medard , Sergio Cobo-Lopez , Jordi Duch , Roger Guimera , Marta Sales-Pardo

In recent past every discipline and every industry have their own methods of developing products. It may be software development, mechanics, construction, psychology and so on. These demarcations work fine as long as the requirements are…

Software Engineering · Computer Science 2012-01-11 Ch Ram Mohan Reddy , D. Evangelin Geetha , K. G. Srinivasa , T. V. Suresh Kumar , K. Rajani Kanth

Multi-task learning has been widely applied in computational vision, natural language processing and other fields, which has achieved well performance. In recent years, a lot of work about multi-task learning recommender system has been…

Information Retrieval · Computer Science 2023-05-24 Mingzhu Zhang , Ruiping Yin , Zhen Yang , Yipeng Wang , Kan Li

Reinforcement learning (RL) has gained traction for enhancing user long-term experiences in recommender systems by effectively exploring users' interests. However, modern recommender systems exhibit distinct user behavioral patterns among…

Information Retrieval · Computer Science 2024-05-24 Changshuo Zhang , Sirui Chen , Xiao Zhang , Sunhao Dai , Weijie Yu , Jun Xu

Social networks have become an increasingly common abstraction to capture the interactions of individual users in a number of everyday activities and applications. As a result, the analysis of such networks has attracted lots of attention…

Social and Information Networks · Computer Science 2023-05-05 Ahmad Zareie , Rizos Sakellariou