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Traditionally, Recommender Systems (RS) have primarily measured performance based on the accuracy and relevance of their recommendations. However, this algorithmic-centric approach overlooks how different types of recommendations impact…

Graph Convolutional Networks (GCN) have been recently employed as core component in the construction of recommender system algorithms, interpreting user-item interactions as the edges of a bipartite graph. However, in the absence of side…

Information Retrieval · Computer Science 2023-03-29 Edoardo D'Amico , Khalil Muhammad , Elias Tragos , Barry Smyth , Neil Hurley , Aonghus Lawlor

In this paper, given a small bag of images, each containing a common but latent predicate, we are interested in localizing visual subject-object pairs connected via the common predicate in each of the images. We refer to this novel problem…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Revant Teotia , Vaibhav Mishra , Mayank Maheshwari , Anand Mishra

We study approximation algorithms for revenue maximization based on static item pricing, where a seller chooses prices for various goods in the market, and then the buyers purchase utility-maximizing bundles at these given prices. We…

Computer Science and Game Theory · Computer Science 2017-05-03 Elliot Anshelevich , Shreyas Sekar

Objective.Visual-Brain Machine Interface(V-BMI) has provide a novel interaction technique for Augmented Reality (AR) industries. Several state-of-arts work has demonstates its high accuracy and real-time interaction capbilities. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Yuying Jiang , Fan Bai , Zicheng Zhang , Xiaochen Ye , Zheng Liu , Zhiping Shi , Jianwei Yao , Xiaojun Liu , Fangkun Zhu , Junling Li Qian Guo , Xiaoan Wang , Junwen Luo

Recommender systems are one of the most successful applications of machine learning and data science. They are successful in a wide variety of application domains, including e-commerce, media streaming content, email marketing, and…

Information Retrieval · Computer Science 2023-04-04 Juan Pablo Equihua , Maged Ali , Henrik Nordmark , Berthold Lausen

Recommendation systems can provide accurate recommendations by analyzing user shopping history. A richer user history results in more accurate recommendations. However, in real applications, users prefer e-commerce platforms where the item…

Information Retrieval · Computer Science 2024-03-20 Irem Islek , Sule Gunduz Oguducu

With recent advances of Virtual Reality (VR) technology, the deployment of such will dramatically increase in non-entertainment environments, such as professional education and training, manufacturing, service, or low frequency/high risk…

Human-Computer Interaction · Computer Science 2019-12-09 Arian Mehrfard , Javad Fotouhi , Giacomo Taylor , Tess Forster , Nassir Navab , Bernhard Fuerst

Every day life tasks can present significant challenges for neurodivergent individuals, particularly those with Autism Spectrum Disorders (ASD) who are characterized by specific sensitivities. This contribution describes a virtual reality…

With the popularity of social media, an increasing number of users are joining group activities on online social platforms. This elicits the requirement of group identification (GI), which is to recommend groups to users. We reveal that…

Social and Information Networks · Computer Science 2025-06-19 Rui Zhao , Beihong Jin , Beibei Li , Yiyuan Zheng

When collaborating face-to-face, people commonly use the surfaces and spaces around them to perform sensemaking tasks, such as spatially organising documents, notes or images. However, when people collaborate remotely using desktop…

Human-Computer Interaction · Computer Science 2022-10-17 Ying Yang , Tim Dwyer , Michael Wybrow , Benjamin Lee , Maxime Cordeil , Mark Billinghurst , Bruce H. Thomas

As social VR applications grow in popularity, blind and low vision users encounter continued accessibility barriers. Yet social VR, which enables multiple people to engage in the same virtual space, presents a unique opportunity to allow…

Human-Computer Interaction · Computer Science 2024-10-30 Jazmin Collins , Crescentia Jung , Yeonju Jang , Danielle Montour , Andrea Stevenson Won , Shiri Azenkot

As data privacy and security attract increasing attention, Federated Recommender System (FRS) offers a solution that strikes a balance between providing high-quality recommendations and preserving user privacy. However, the presence of…

Information Retrieval · Computer Science 2024-11-05 Xinrui He , Shuo Liu , Jackey Keung , Jingrui He

Virtual Reality (VR) interfaces often rely on linear ray-casting for object selection but struggle with precision in dense or occluded environments. This late-breaking work introduces an optimized dual-layered selection mechanism combining…

Human-Computer Interaction · Computer Science 2025-03-04 Xiang Li , Per Ola Kristensson

Group recommender systems (GRS) are critical in discovering relevant items from a near-infinite inventory based on group preferences rather than individual preferences, like recommending a movie, restaurant, or tourist destination to a…

Although existing multimodal recommendation models have shown promising performance, their effectiveness continues to be limited by the pervasive data sparsity problem. This problem arises because users typically interact with only a small…

Information Retrieval · Computer Science 2025-12-10 Jinfeng Xu , Zheyu Chen , Shuo Yang , Jinze Li , Zitong Wan , Hewei Wang , Weijie Liu , Yijie Li , Edith C. H. Ngai

As XR devices become widespread, 3D interaction has become commonplace, and UI developers are increasingly required to consider usability to deliver better user experiences. The HCI community has long studied target-pointing performance,…

Human-Computer Interaction · Computer Science 2026-01-08 Tatsuya Okuno , Haruto Shimizu , Nobuhito Kasahara , Taiyu Honma , Shota Yamanaka , Homei Miyashita

Effective visual representation learning is crucial for reinforcement learning (RL) agents to extract task-relevant information from raw sensory inputs and generalize across diverse environments. However, existing RL benchmarks lack the…

Visual search is of great assistance in reseller commerce, especially for non-tech savvy users with affinity towards regional languages. It allows resellers to accurately locate the products that they seek, unlike textual search which…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Prajit Nadkarni , Narendra Varma Dasararaju

This research proposes a new recommender system algorithm for online grocery shopping. The algorithm is based on the perspective that, since the grocery items are usually bought in bulk, a grocery recommender system should be capable of…

Information Retrieval · Computer Science 2021-09-02 Gourab Nath , Jaydip Sen