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This article puts forward the use of mutual information values to replicate the expertise of security professionals in selecting features for detecting web attacks. The goal is to enhance the effectiveness of web application firewalls…

Cryptography and Security · Computer Science 2024-07-29 Amanda Riverol , Gustavo Betarte , Rodrigo Martínez , Álvaro Pardo

Collaborative filtering recommendation systems provide recommendations to users based on their own past preferences, as well as those of other users who share similar interests. The use of recommendation systems has grown widely in recent…

Cryptography and Security · Computer Science 2020-03-19 Islam Elnabarawy , Wei Jiang , Donald C. Wunsch

In this paper, we present a general scheme for building reproducible and extensible datasets for website phishing detection. The aim is to (1) enable comparison of systems using different features, (2) overtake the short-lived nature of…

Cryptography and Security · Computer Science 2024-04-24 Abdelhakim Hannousse , Salima Yahiouche

Insider threat detection aims to identify malicious user behavior by analyzing logs that record user interactions. Due to the lack of fine-grained behavior-level annotations, detecting specific behavior-level anomalies within user behavior…

Cryptography and Security · Computer Science 2025-08-18 Yang Wang , Yaxin Zhao , Xinyu Jiao , Sihan Xu , Xiangrui Cai , Ying Zhang , Xiaojie Yuan

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

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

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

Various approaches in the field of physical layer security involve anomaly detection, such as physical layer authentication, sensing attacks, and anti-tampering solutions. Depending on the context in which these approaches are applied,…

Information Theory · Computer Science 2025-06-13 Stefan Roth , Aydin Sezgin

This work addresses the challenges related to attacks on collaborative tagging systems, which often comes in a form of malicious annotations or profile injection attacks. In particular, we study various countermeasures against two types of…

Information Retrieval · Computer Science 2019-01-25 Georgios K. Pitsilis , Heri Ramampiaro , Helge Langseth

Cold-start challenges in recommender systems necessitate leveraging auxiliary features beyond user-item interactions. However, the presence of irrelevant or noisy features can degrade predictive performance, whereas an excessive number of…

Information Retrieval · Computer Science 2025-08-11 Nikita Sukhorukov , Danil Gusak , Evgeny Frolov

Recommender systems are aimed at generating a personalized ranked list of items that an end user might be interested in. With the unprecedented success of deep learning in computer vision and speech recognition, recently it has been a hot…

Information Retrieval · Computer Science 2018-08-16 Bo Song , Xin Yang , Yi Cao , Congfu Xu

Intrusion detection systems (IDS) are widely studied by researchers nowadays due to the dramatic growth in network-based technologies. Policy violations and unauthorized access is in turn increasing which makes intrusion detection systems…

Networking and Internet Architecture · Computer Science 2015-07-27 Yasmen Wahba , Ehab ElSalamouny , Ghada ElTaweel

Collaborative filtering (CF) has become a popular method for developing recommender systems (RSs) where ratings of a user for new items are predicted based on her past preferences and available preference information of other users. Despite…

Information Retrieval · Computer Science 2023-10-03 Shamal Shaikh , Venkateswara Rao Kagita , Vikas Kumar , Arun K Pujari

Phishing sites continue to grow in volume and sophistication. Recent work leverages large language models (LLMs) to analyze URLs, HTML, and rendered content to decide whether a website is a phishing site. While these approaches are…

Cryptography and Security · Computer Science 2026-02-06 Takashi Koide , Hiroki Nakano , Daiki Chiba

Conversational recommender systems (CRS) aim to recommend suitable items to users through natural language conversations. For developing effective CRSs, a major technical issue is how to accurately infer user preference from very limited…

Computation and Language · Computer Science 2023-05-31 Yuanhang Zhou , Kun Zhou , Wayne Xin Zhao , Cheng Wang , Peng Jiang , He Hu

We present a novel, non-standard recommender system for large-scale security policy management(SPM). Our system Helios discovers and recommends unknown and unseen anomalies in large-scale access logs with minimal supervision and no starting…

Information Retrieval · Computer Science 2016-10-27 Heju Jiang , Scott Algatt , Parvez Ahammad

Recommendation systems usually involve exploiting the relations among known features and content that describe items (content-based filtering) or the overlap of similar users who interacted with or rated the target item (collaborative…

Artificial Intelligence · Computer Science 2016-07-06 Shuo Yang , Mohammed Korayem , Khalifeh AlJadda , Trey Grainger , Sriraam Natarajan

Precise user and item embedding learning is the key to building a successful recommender system. Traditionally, Collaborative Filtering(CF) provides a way to learn user and item embeddings from the user-item interaction history. However,…

Information Retrieval · Computer Science 2019-04-24 Le Wu , Peijie Sun , Yanjie Fu , Richang Hong , Xiting Wang , Meng Wang

Federated recommendation (FedRec) preserves user privacy by enabling decentralized training of personalized models, but this architecture is inherently vulnerable to adversarial attacks. Significant research has been conducted on targeted…

Cryptography and Security · Computer Science 2024-12-31 Qitao Qin , Yucong Luo , Mingyue Cheng , Qingyang Mao , Chenyi Lei

Deep learning-based recommender systems (DRSs) are increasingly and widely deployed in the industry, which brings significant convenience to people's daily life in different ways. However, recommender systems are also shown to suffer from…

Artificial Intelligence · Computer Science 2023-04-17 Huizhong Guo , Jinfeng Li , Jingyi Wang , Xiangyu Liu , Dongxia Wang , Zehong Hu , Rong Zhang , Hui Xue