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Cold-start recommendation remains a central challenge in dynamic, open-world platforms, requiring models to recommend for newly registered users (user cold-start) and to recommend newly introduced items to existing users (item cold-start)…

Information Retrieval · Computer Science 2026-04-07 Zhen Zhang , Jujia Zhao , Xinyu Ma , Xin Xin , Maarten de Rijke , Zhaochun Ren

Academic libraries struggle to find and access faculty expertise across disciplines. This research proposes a faculty expertise ontology with a hierarchical structure based on Prot\'eg\'e to enhance library services and knowledge…

Digital Libraries · Computer Science 2026-01-13 Snehasish Paul

An important aspect of a researcher's activities is to find relevant and related publications. The task of a recommender system for scientific publications is to provide a list of papers that match these criteria. Based on the collection of…

Information Retrieval · Computer Science 2014-09-05 Roman Kern , Kris Jack , Michael Granitzer

Recommender systems improve access to relevant products and information by making personalized suggestions based on previous examples of a user's likes and dislikes. Most existing recommender systems use social filtering methods that base…

Digital Libraries · Computer Science 2007-05-23 Raymond J. Mooney , Loriene Roy

Ontology-based data integration has been one of the practical methodologies for heterogeneous legacy database integrated service construction. However, it is neither efficient nor economical to build the cross-domain ontology on top of the…

Databases · Computer Science 2021-03-16 Yuanwei Zhao , Lan Huang , Bo Wang , Dongxu Zhang , Simone Bocca , Fausto Giunchiglia , Rui Zhang

Recommender systems are central to modern online platforms, but a popular concern is that they may be pulling society in dangerous directions (e.g., towards filter bubbles). However, a challenge with measuring the effects of recommender…

Computers and Society · Computer Science 2021-10-25 Serina Chang , Johan Ugander

Recommender systems can be characterized as software solutions that provide users convenient access to relevant content. Traditionally, recommender systems research predominantly focuses on developing machine learning algorithms that aim to…

Information Retrieval · Computer Science 2022-10-20 Dietmar Jannach

A reciprocal recommendation problem is one where the goal of learning is not just to predict a user's preference towards a passive item (e.g., a book), but to recommend the targeted user on one side another user from the other side such…

Machine Learning · Computer Science 2018-06-05 Fabio Vitale , Nikos Parotsidis , Claudio Gentile

Considering the high heterogeneity of the ontologies pub-lished on the web, ontology matching is a crucial issue whose aim is to establish links between an entity of a source ontology and one or several entities from a target ontology.…

Artificial Intelligence · Computer Science 2015-01-26 Amira Essaid , Arnaud Martin , Grégory Smits , Boutheina Ben Yaghlane

Recommender Systems are tools that improve how users find relevant information in web systems, so they do not face too much information. In order to generate better recommendations, the context of information should be used in the…

Information Retrieval · Computer Science 2020-07-10 Igor André Pegoraro Santana , Marcos Aurelio Domingues

Many of today's online services provide personalized recommendations to their users. Such recommendations are typically designed to serve certain user needs, e.g., to quickly find relevant content in situations of information overload.…

Information Retrieval · Computer Science 2023-12-25 Alvise De Biasio , Nicolò Navarin , Dietmar Jannach

The item cold-start problem is crucial for online recommender systems, as the success of the cold-start phase determines whether items can transition into popular ones. Prompt learning, a powerful technique used in natural language…

Information Retrieval · Computer Science 2024-12-25 Yuezihan Jiang , Gaode Chen , Wenhan Zhang , Jingchi Wang , Yinjie Jiang , Qi Zhang , Jingjian Lin , Peng Jiang , Kaigui Bian

In this paper, we describe an approach to populate an existing ontology with instance information present in the natural language text provided as input. An ontology is defined as an explicit conceptualization of a shared domain. This…

Information Retrieval · Computer Science 2013-02-07 Raghu Anantharangachar , Srinivasan Ramani , S Rajagopalan

Recommender systems are popular in e-commerce as they suggest items of interest to users. Researchers have addressed the cold-start problem where either the user or the item is new. However, the situation with both new user and new item has…

Information Retrieval · Computer Science 2013-05-08 Fan Min , William Zhu

Efficient ontology debugging is a cornerstone for many activities in the context of the Semantic Web, especially when automatic tools produce (parts of) ontologies such as in the field of ontology matching. The best currently known…

Artificial Intelligence · Computer Science 2012-09-18 Patrick Rodler , Kostyantyn Shchekotykhin , Philipp Fleiss , Gerhard Friedrich

Starting from an unsolved problem of information retrieval this paper presents an ontology-based model for indexing and retrieval. The model combines the methods and experiences of cognitive-to-interpret indexing languages with the…

Information Retrieval · Computer Science 2013-12-17 Winfried Gödert

The current learning systems typically lack the level of metacognitive awareness, self-directed learning, and time management skills. Most of the ontologically based learning management systems are in the proposed phase and those which are…

Computers and Society · Computer Science 2017-09-01 Monika Rani , Kumar Vaibhav Srivastava , O. P. Vyas

With the ever-growing volume of online information, recommender systems have been an effective strategy to overcome such information overload. The utility of recommender systems cannot be overstated, given its widespread adoption in many…

Information Retrieval · Computer Science 2019-07-11 Shuai Zhang , Lina Yao , Aixin Sun , Yi Tay

Recommender systems face a critical challenge in the item cold-start problem, which limits content diversity and exacerbates popularity bias by struggling to recommend new items. While existing solutions often rely on auxiliary data, but…

Information Retrieval · Computer Science 2025-07-15 Dong Wang , Junyi Jiao , Arnab Bhadury , Yaping Zhang , Mingyan Gao , Onkar Dalal

The study proposes a framework of ONTOlogy-based Group Decision Support System (ONTOGDSS) for decision process which exhibits the complex structure of decision-problem and decision-group. It is capable of reducing the complexity of problem…

Artificial Intelligence · Computer Science 2011-07-18 Junyi Chai , James N. K. Liu
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