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The recent advances of conversational recommendations provide a promising way to efficiently elicit users' preferences via conversational interactions. To achieve this, the recommender system conducts conversations with users, asking their…

Information Retrieval · Computer Science 2022-09-14 Jinhang Zuo , Songwen Hu , Tong Yu , Shuai Li , Handong Zhao , Carlee Joe-Wong

Context: User intent modeling is a crucial process in Natural Language Processing that aims to identify the underlying purpose behind a user's request, enabling personalized responses. With a vast array of approaches introduced in the…

Forecasting techniques for assessing the power of future experiments to discriminate between theories or discover new laws of nature are of great interest in many areas of science. In this paper, we introduce a Bayesian forecasting method…

Data Analysis, Statistics and Probability · Physics 2024-09-24 Mohammad Hossein Namjoo

In the last decade we have observed a mass increase of information, in particular information that is shared through smartphones. Consequently, the amount of information that is available does not allow the average user to be aware of all…

Information Retrieval · Computer Science 2017-07-04 Akshay Kumar Chaturvedi , Filipa Peleja , Ana Freire

The majority of existing recommender systems rely on user ratings, which are limited by the lack of user collaboration and the sparsity problem. To address these issues, this study proposes a behavior-based recommender system that leverages…

Information Retrieval · Computer Science 2024-03-28 Reza Barzegar Nozari , Mahdi Divsalar , Sepehr Akbarzadeh Abkenar , Mohammadreza Fadavi Amiri , Ali Divsalar

In academic literature, recommender systems are often evaluated on the task of next-item prediction. The procedure aims to give an answer to the question: "Given the natural sequence of user-item interactions up to time t, can we predict…

Information Retrieval · Computer Science 2019-07-30 Olivier Jeunen , David Rohde , Flavian Vasile

Ranking and comparing items is crucial for collecting information about preferences in many areas, from marketing to politics. The Mallows rank model is among the most successful approaches to analyse rank data, but its computational…

Methodology · Statistics 2017-04-28 Valeria Vitelli , Øystein Sørensen , Marta Crispino , Arnoldo Frigessi , Elja Arjas

Recommender systems are tools that support online users by pointing them to potential items of interest in situations of information overload. In recent years, the class of session-based recommendation algorithms received more attention in…

Information Retrieval · Computer Science 2020-09-29 Malte Ludewig , Noemi Mauro , Sara Latifi , Dietmar Jannach

An important challenge in non-cooperative game theory is coordinating on a single (approximate) equilibrium from many possibilities - a challenge that becomes even more complex when players hold private information. Recommender mechanisms…

Computer Science and Game Theory · Computer Science 2025-05-30 Bengisu Guresti , Chongjie Zhang , Yevgeniy Vorobeychik

Recommender systems are the algorithms which select, filter, and personalize content across many of the worlds largest platforms and apps. As such, their positive and negative effects on individuals and on societies have been extensively…

A key distinguishing feature of conversational recommender systems over traditional recommender systems is their ability to elicit user preferences using natural language. Currently, the predominant approach to preference elicitation is to…

Information Retrieval · Computer Science 2025-04-09 Ivica Kostric , Krisztian Balog , Filip Radlinski

Recommendation based on user preferences is a common task for e-commerce websites. New recommendation algorithms are often evaluated by offline comparison to baseline algorithms such as recommending random or the most popular items. Here,…

Recommender systems have become an essential tool for providers and users of online services and goods, especially with the increased use of the Internet to access information and purchase products and services. This work proposes a novel…

Information Retrieval · Computer Science 2022-10-17 Abdullah Alhadlaq , Said Kerrache , Hatim Aboalsamh

Dialogue engines that incorporate different types of agents to converse with humans are popular. However, conversations are dynamic in the sense that a selected response will change the conversation on-the-fly, influencing the subsequent…

Computation and Language · Computer Science 2020-05-08 Asir Saeed , Khai Mai , Pham Minh , Nguyen Tuan Duc , Danushka Bollegala

Recommendation dialogue systems aim to build social bonds with users and provide high-quality recommendations. This paper pushes forward towards a promising paradigm called target-driven recommendation dialogue systems, which is highly…

Computation and Language · Computer Science 2022-08-09 Jian Wang , Dongding Lin , Wenjie Li

The recent development of online recommender systems has a focus on collaborative ranking from implicit feedback, such as user clicks and purchases. Different from explicit ratings, which reflect graded user preferences, the implicit…

Information Retrieval · Computer Science 2020-02-25 Chao Wang , Hengshu Zhu , Chen Zhu , Chuan Qin , Hui Xiong

Recommendation is a prevalent application of machine learning that affects many users; therefore, it is important for recommender models to be accurate and interpretable. In this work, we propose a method to both interpret and augment the…

Machine Learning · Statistics 2020-06-22 Michael Tsang , Dehua Cheng , Hanpeng Liu , Xue Feng , Eric Zhou , Yan Liu

Recommender systems help people cope with the problem of information overload. A recently proposed adaptive news recommender model [Medo et al., 2009] is based on epidemic-like spreading of news in a social network. By means of agent-based…

Physics and Society · Physics 2015-03-17 Giulio Cimini , Matus Medo , Tao Zhou , Dong Wei , Yi-Cheng Zhang

In this article, we will research the Recommender System's implementation about how it works and the algorithms used. We will explain the Recommender System's algorithms based on mathematical principles, and find feasible methods for…

Information Retrieval · Computer Science 2023-04-27 Fu Chen , Junkang Zou , Lingfeng Zhou , Zekai Xu , Zhenyu Wu

Entity aspect recommendation is an emerging task in semantic search that helps users discover serendipitous and prominent information with respect to an entity, of which salience (e.g., popularity) is the most important factor in previous…

Information Retrieval · Computer Science 2024-04-10 Tu Nguyen , Nattiya Kanhabua , Wolfgang Nejdl