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Proceedings ArticleDOI

Discovering User-Communities and Associated Topics from YouTube

TLDR
An unsupervised method is proposed that jointly models "social" interaction and content metadata in YouTube to discover user-communities and the nature of topics beings discussed in these communities.
Abstract
Most of the popular multimedia sharing web-sites such as YouTube, Flickr etc not only allow users to author and upload content but also facilitate "social" networking amongst users. These social interactions can be in the form of - user-to-user interactions i.e. adding existing users to friend or contact list or user-to-content interactions : commenting on a video or picture, marking a picture/video as "favorite", subscribing to a user created "channel" etc. Analyzing these social interactions jointly with the content metadata (such as the description of the video, keywords associated with the image/video etc) can reveal interesting insights about user activity on these social media platforms. In this paper, we propose an unsupervised method that jointly models "social" interaction and content metadata in YouTube to discover user-communities and the nature of topics beings discussed in these communities. We report the effectiveness of the proposed method on real-world dataset.

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Citations
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Proceedings ArticleDOI

Interplay between video recommendations, categories, and popularity on YouTube

TL;DR: It is found that about 40% of the video recommendations come from categories other than that of the original video, with Entertainment being the most preferred cross-linked category, and popularity measures including the number of views and comments strongly impact video recommendations.
Journal ArticleDOI

Bibliometric Analysis of Latent Dirichlet Allocation

TL;DR: The co-occurrence analysis of keywords indicated that text mining and machine learning were dominant topics in LDA research with significant interest in social media.
References
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Journal ArticleDOI

Latent dirichlet allocation

TL;DR: This work proposes a generative model for text and other collections of discrete data that generalizes or improves on several previous models including naive Bayes/unigram, mixture of unigrams, and Hofmann's aspect model.
Proceedings Article

Latent Dirichlet Allocation

TL;DR: This paper proposed a generative model for text and other collections of discrete data that generalizes or improves on several previous models including naive Bayes/unigram, mixture of unigrams, and Hof-mann's aspect model, also known as probabilistic latent semantic indexing (pLSI).
Journal ArticleDOI

Mixed Membership Stochastic Blockmodels

TL;DR: In this article, the authors introduce a class of variance allocation models for pairwise measurements, called mixed membership stochastic blockmodels, which combine global parameters that instantiate dense patches of connectivity (blockmodel) with local parameters (mixed membership), and develop a general variational inference algorithm for fast approximate posterior inference.
Proceedings ArticleDOI

The author-topic model for authors and documents

TL;DR: The author-topic model is introduced, a generative model for documents that extends Latent Dirichlet Allocation to include authorship information, and applications to computing similarity between authors and entropy of author output are demonstrated.
Posted Content

Mixed membership stochastic blockmodels

TL;DR: The mixed membership stochastic block model as discussed by the authors extends block models for relational data to ones which capture mixed membership latent relational structure, thus providing an object-specific low-dimensional representation.
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