What Fresh Media Are You Looking For? Extracting Media Items from Multiple Social Networks

What Fresh Media Are You Looking For? Retrieving Media Items from Multiple Social NetworksDownload PDF

Author: Giuseppe Rizzo, Thomas Steiner, Raphaël Troncy, Ruben Verborgh, Josè Luis Redondo Garcia and Rik Van de Walle

In Proceedings of the International Workshop on Socially-Aware Multimedia held in Nara, Japan on October 29th, 2012. The workshop is co-located with the ACM Multimedia 2012 Conference.

Social networks play an increasingly important role for sharing media items related to daily life moments or for the live coverage of events. One of the problems is that media are spread over multiple social networks. In this paper, we propose a social network-agnostic approach for collecting recent images and videos which can be potentially attached to an event. These media items can be used for the automatic generation of visual summaries in the form of media galleries. Our approach includes the alignment of the varying search result formats of di erent social networks, while putting media items in correspondence with the status updates and stories they are related to. More precisely we leverage on: (i) visual features from media items, (ii) textual features from status updates, and (iii) social features from social networks to interpret, deduplicate, cluster, and visualize media items. We address the technical details of media item extraction and media item processing, discuss criteria for media item ltering and envision several visualization options for media presentation. Our evaluation is divided into two parts: rst we assess the performances of the image process deduplication and then we propose a human evaluation of the summary creation compared with Teleportd and Twitter media galleries. A demo of our approach is publicly available at http://eventmedia.eurecom.fr/media-finder.

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