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In this study, we present a novel clustering-based collaborative filtering (CF) method for recommender systems. Clustering-based CF methods can effectively deal with data sparsity and scalability problems. However, most of them are applied…

Information Retrieval · Computer Science 2021-11-17 Munlika Rattaphun , Wen-Chieh Fang , Chih-Yi Chiu

We present Graph Attention Collaborative Similarity Embedding (GACSE), a new recommendation framework that exploits collaborative information in the user-item bipartite graph for representation learning. Our framework consists of two parts:…

Information Retrieval · Computer Science 2021-02-08 Jinbo Song , Chao Chang , Fei Sun , Zhenyang Chen , Guoyong Hu , Peng Jiang

Understanding the structure and evolution of web-based user-object networks is a significant task since they play a crucial role in e-commerce nowadays. This Letter reports the empirical analysis on two large-scale web sites,…

Data Analysis, Statistics and Probability · Physics 2015-05-14 Mingsheng Shang , Linyuan Lu , Yi-Cheng Zhang , Tao Zhou

Diffusion-based re-ranking is a common method used for retrieving instances by performing similarity propagation in a nearest neighbor graph. However, existing techniques that construct the affinity graph based on pairwise instances can…

Machine Learning · Computer Science 2025-01-07 Jifei Luo , Hantao Yao , Changsheng Xu

The amount of content on online music streaming platforms is immense, and most users only access a tiny fraction of this content. Recommender systems are the application of choice to open up the collection to these users. Collaborative…

Information Retrieval · Computer Science 2017-08-23 Cedric De Boom , Rohan Agrawal , Samantha Hansen , Esh Kumar , Romain Yon , Ching-Wei Chen , Thomas Demeester , Bart Dhoedt

Cooperative perception can effectively enhance individual perception performance by providing additional viewpoint and expanding the sensing field. Existing cooperation paradigms are either interpretable (result cooperation) or flexible…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Siqi Fan , Haibao Yu , Wenxian Yang , Jirui Yuan , Zaiqing Nie

Algorithms have an increasing influence on the music that we consume and understanding their behavior is fundamental to make sure they give a fair exposure to all artists across different styles. In this on-going work we contribute to this…

Information Retrieval · Computer Science 2019-11-13 Andres Ferraro , Dmitry Bogdanov , Xavier Serra , Jason Yoon

We propose a novel particle filter for convolutional-correlation visual trackers. Our method uses correlation response maps to estimate likelihood distributions and employs these likelihoods as proposal densities to sample particles.…

Computer Vision and Pattern Recognition · Computer Science 2020-06-15 Reza Jalil Mozhdehi , Henry Medeiros

Recommendation systems have been widely used by commercial service providers for giving suggestions to users. Collaborative filtering (CF) systems, one of the most popular recommendation systems, utilize the history of behaviors of the…

Information Retrieval · Computer Science 2016-11-16 Saber Shokat Fadaee , Mohammad Sajjad Ghaemi , Ravi Sundaram , Hossein Azari Soufiani

We introduce the diffusion and superposition distances as two metrics to compare signals supported in the nodes of a network. Both metrics consider the given vectors as initial temperature distributions and diffuse heat trough the edges of…

Social and Information Networks · Computer Science 2014-12-01 Santiago Segarra , Weiyu Huang , Alejandro Ribeiro

Diffusion methods have been proven to be very effective to generate images while conditioning on a text prompt. However, and although the quality of the generated images is unprecedented, these methods seem to struggle when trying to…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 Álvaro Barbero Jiménez

Interactive object selection is a very important research problem and has many applications. Previous algorithms require substantial user interactions to estimate the foreground and background distributions. In this paper, we present a…

Computer Vision and Pattern Recognition · Computer Science 2016-03-15 Ning Xu , Brian Price , Scott Cohen , Jimei Yang , Thomas Huang

Most state-of-the-art image retrieval and recommendation systems predominantly focus on individual images. In contrast, socially curated image collections, condensing distinctive yet coherent images into one set, are largely overlooked by…

Multimedia · Computer Science 2016-11-17 Yuncheng Li , Yang Cong , Tao Mei , Jiebo Luo

Peer-to-peer swarming protocols have been proven to be very efficient for content replication over Internet. This fact has certainly motivated proposals to adapt these protocols to meet the requirements of on-demand streaming system. The…

Networking and Internet Architecture · Computer Science 2013-10-09 Marcus V. M. Rocha , Carlo Kleber da S. Rodrigues

For the rendering of multiple scattering effects in participating media, methods based on the diffusion approximation are an extremely efficient alternative to Monte Carlo path tracing. However, in sufficiently transparent regions,…

Graphics · Computer Science 2014-04-01 David Koerner , Jamie Portsmouth , Filip Sadlo , Thomas Ertl , Bernd Eberhardt

We focus on the problem of streaming recommender system and explore novel collaborative filtering algorithms to handle the data dynamicity and complexity in a streaming manner. Although deep neural networks have demonstrated the…

Machine Learning · Computer Science 2019-06-12 Qingquan Song , Shiyu Chang , Xia Hu

As a key application of artificial intelligence, recommender systems are among the most pervasive computer aided systems to help users find potential items of interests. Recently, researchers paid considerable attention to fairness issues…

Information Retrieval · Computer Science 2021-04-26 Le Wu , Lei Chen , Pengyang Shao , Richang Hong , Xiting Wang , Meng Wang

We present a general framework for comparing multiple groups of documents. A bipartite graph model is proposed where document groups are represented as one node set and the comparison criteria are represented as the other node set. Using…

Computation and Language · Computer Science 2015-08-25 Arun S. Maiya

The application of machine learning techniques to large-scale personalized recommendation problems is a challenging task. Such systems must make sense of enormous amounts of implicit feedback in order to understand user preferences across…

Information Retrieval · Computer Science 2019-01-15 Thom Lake , Sinead A. Williamson , Alexander T. Hawk , Christopher C. Johnson , Benjamin P. Wing

We present a graph-based variational algorithm for multiclass classification of high-dimensional data, motivated by total variation techniques. The energy functional is based on a diffuse interface model with a periodic potential. We…

Machine Learning · Statistics 2012-12-06 Cristina Garcia-Cardona , Arjuna Flenner , Allon G. Percus