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Recommender systems often rely on observational user--item interaction data, which is prone to selection bias due to users' selective interactions with items. Inverse propensity weighting and doubly robust estimators effectively mitigate…

Machine Learning · Computer Science 2026-05-21 Zongyu Li , Wanting Su , Tianyu Xia

Driven by advances in Large Language Models (LLMs), integrating them into recommendation tasks has gained interest due to their strong semantic understanding and prompt flexibility. Prior work encoded user-item interactions or metadata into…

Information Retrieval · Computer Science 2025-06-10 Keyu Zhao , Fengli Xu , Yong Li

In this paper we present a method for reformulating the Recommender Systems problem in an Information Retrieval one. In our tests we have a dataset of users who give ratings for some movies; we hide some values from the dataset, and we try…

Information Retrieval · Computer Science 2011-06-03 Alberto Costa , Fabio Roda

Large-scale migration of legacy C code to Rust offers a promising path toward improving memory safety, but LLM-based C-to-Rust translation remains challenging due to limited context windows and hallucinations. Prior approaches are evaluated…

Software Engineering · Computer Science 2026-04-15 Muhammad Farrukh , Baris Coskun , Tapti Palit , Michalis Polychronakis

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

The design of algorithms that generate personalized ranked item lists is a central topic of research in the field of recommender systems. In the past few years, in particular, approaches based on deep learning (neural) techniques have…

Information Retrieval · Computer Science 2021-01-08 Maurizio Ferrari Dacrema , Simone Boglio , Paolo Cremonesi , Dietmar Jannach

AI agents have the potential to aid users on a variety of consequential tasks, including conducting scientific research. To spur the development of useful agents, we need benchmarks that are challenging, but more crucially, directly…

Computation and Language · Computer Science 2024-09-18 Zachary S. Siegel , Sayash Kapoor , Nitya Nagdir , Benedikt Stroebl , Arvind Narayanan

Open challenges have become the de facto standard for comparative ranking of medical AI methods. Despite their importance, medical AI leaderboards exhibit three persistent limitations: (1) score gaps are rarely tested for statistical…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Ariel Lubonja , Pedro R. A. S. Bassi , Wenxuan Li , Hualin Qiao , Randal Burns , Alan L. Yuille , Zongwei Zhou

Recommender Systems are becoming ubiquitous in many settings and take many forms, from product recommendation in e-commerce stores, to query suggestions in search engines, to friend recommendation in social networks. Current research…

Information Retrieval · Computer Science 2018-09-17 David Rohde , Stephen Bonner , Travis Dunlop , Flavian Vasile , Alexandros Karatzoglou

In recent years, conversational recommender system (CRS) has received much attention in the research community. However, existing studies on CRS vary in scenarios, goals and techniques, lacking unified, standardized implementation or…

Computation and Language · Computer Science 2021-01-05 Kun Zhou , Xiaolei Wang , Yuanhang Zhou , Chenzhan Shang , Yuan Cheng , Wayne Xin Zhao , Yaliang Li , Ji-Rong Wen

In recent years, integrating large language models (LLMs) into recommender systems has created new opportunities for improving recommendation quality. However, a comprehensive benchmark is needed to thoroughly evaluate and compare the…

Information Retrieval · Computer Science 2025-10-30 Qijiong Liu , Jieming Zhu , Lu Fan , Kun Wang , Hengchang Hu , Wei Guo , Yong Liu , Xiao-Ming Wu

Amongst the most common use cases of modern AI is LLM chat with web search enabled. However, no direct evaluations of the quality of web research agents exist that control for the continually-changing web. We introduce Deep Research Bench,…

Artificial Intelligence · Computer Science 2025-06-10 FutureSearch , : , Nikos I. Bosse , Jon Evans , Robert G. Gambee , Daniel Hnyk , Peter Mühlbacher , Lawrence Phillips , Dan Schwarz , Jack Wildman

Recommender systems (RecSys) are widely used across various modern digital platforms and have garnered significant attention. Traditional recommender systems usually focus only on fixed and simple recommendation scenarios, making it…

Information Retrieval · Computer Science 2026-02-03 Jiani Huang , Shijie Wang , Liang-bo Ning , Wenqi Fan , Shuaiqiang Wang , Dawei Yin , Qing Li

Large language models (LLMs) have demonstrated their significant potential to be applied for addressing various application tasks. However, traditional recommender systems continue to face great challenges such as poor interactivity and…

Information Retrieval · Computer Science 2023-04-05 Yunfan Gao , Tao Sheng , Youlin Xiang , Yun Xiong , Haofen Wang , Jiawei Zhang

Reproductive well-being education remains widely stigmatized across diverse cultural contexts, constraining how individuals access and interpret reproductive health knowledge. We designed and evaluated OpenBloom, a stigma-sensitive,…

Human-Computer Interaction · Computer Science 2026-02-03 Ashley Hua , Adya Daruka , Yang Hong , Sharifa Sultana

Recommender systems play a fundamental role in web applications in filtering massive information and matching user interests. While many efforts have been devoted to developing more effective models in various scenarios, the exploration on…

Machine Learning · Computer Science 2020-08-24 Ninghao Liu , Yong Ge , Li Li , Xia Hu , Rui Chen , Soo-Hyun Choi

Reading comprehension is one of the crucial tasks for furthering research in natural language understanding. A lot of diverse reading comprehension datasets have recently been introduced to study various phenomena in natural language,…

Computation and Language · Computer Science 2020-01-01 Dheeru Dua , Ananth Gottumukkala , Alon Talmor , Sameer Singh , Matt Gardner

Recommender Systems have shown to be an effective way to alleviate the over-choice problem and provide accurate and tailored recommendations. However, the impressive number of proposed recommendation algorithms, splitting strategies,…

Open Large Language Model (LLM) benchmarks, such as HELM and BIG-Bench, provide standardized and transparent evaluation protocols that support comparative analysis, reproducibility, and systematic progress tracking in Language Model (LM)…

Computation and Language · Computer Science 2026-01-08 Md. Najib Hasan , Md Mahadi Hassan Sibat , Mohammad Fakhruddin Babar , Souvika Sarkar , Monowar Hasan , Santu Karmaker

Operations Research practitioners debug infeasible models through an iterative process: inspecting Irreducible Infeasible Subsystems ( IIS), identifying constraint conflicts, and repairing formulations until feasibility is restored.…

Machine Learning · Computer Science 2026-05-27 Ruicheng Ao , David Simchi-Levi , Xinshang Wang