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Top-k Publish-subscribe for Social Annotation of News by Alexander Shraer; Maxim Gurevich; Marcus Fontoura; Vanja Josifovski is a Computer Science article available to read on EtoBox.

What is Top-k Publish-subscribe for Social Annotation of News about?

Social content, such as Twitter updates, often have the quickest first-hand reports of news events, as well as numerous commentaries that are indicative of public view of such events. As such, social updates provide a good complement to professionally written news articles. In this paper we consider the problem of automatically annotating news stories with social updates (tweets), at a news website serving high volume of pageviews. The high rate of both the pageviews (millions to billions a day) and of the incoming tweets (more than 100 millions a day) make real-time indexing of tweets ineffective, as this requires an index that is both queried and updated extremely frequently. The rate of tweet updates makes caching techniques almost unusable since the cache would become stale very quickly. We propose a novel architecture where each story is treated as a subscription for tweets relevant to the story's content, and new algorithms that efficiently match tweets to stories, proactively maintaining the top-k tweets for each story. Such top-k pub-sub consumes only a small fraction of the resource cost of alternative solutions, and can be applicable to other large scale content-based pub

Who reads Top-k Publish-subscribe for Social Annotation of News?

Author

Alexander Shraer; Maxim Gurevich; Marcus Fontoura; Vanja Josifovski

Publisher

ACM

Published

2013

Language

EN

Field

Computer Science (Physical Sciences)