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Mining, ranking and recommending entity aspects


Entity queries constitute a large fraction of web search queries and most of these queries are in the form of an entity mention plus some context terms that represent an intent in the context of that entity. We refer to these entity-oriented search intents as entity aspects. Recognizing entity aspects More >

SIGIR logo

Dynamic query modeling for related content finding


While watching television, people increasingly consume additional content related to what they are watching. We consider the task of finding video content related to a live television broadcast for which we leverage the textual stream of subtitles associated with the broadcast. We model this task as a Markov decision process More >

ACL logo

Learning to Explain Entity Relationships in Knowledge Graphs


We study the problem of explaining relationships between pairs of knowledge graph entities with human-readable descriptions. Our method extracts and enriches sentences that refer to an entity pair from a corpus and ranks the sentences according to how well they describe the relationship between the entities. We model this task More >

wsdm 2015

Fast and Space-Efficient Entity Linking in Queries


Entity linking deals with identifying entities from a knowledge base in a given piece of text and has become a fundamental building block for web search engines, enabling numerous downstream improvements from better document ranking to enhanced search results pages. A key problem in the context of web search queries More >

CIKM 2014

Time-Aware Rank Aggregation for Microblog Search


We tackle the problem of searching microblog posts and frame it as a rank aggregation problem where we merge result lists generated by separate rankers so as to produce a final ranking to be returned to the user. We propose a rank aggregation method, TimeRA, that is able to infer the More >


WSDM 2014, a recap


WSDM is wrapping up today, with only the workshops left for tomorrow. All in all, it was an exciting WSDM with lots of interesting talks and discussions. And of course Times Square cannot be beaten as conference venue location. Some papers/talks that caught my (semantic search) eye at WSDM, in no particular More >

Yahoo Labs

Linking queries to entities


I’m happy to announce we’re releasing a new test collection for entity linking for web queries (within user sessions) to Wikipedia. About half of the queries in this dataset are sampled from Yahoo search logs, the other half comes from the TREC Session track. Check out the L24 dataset More >

Entity Linking

Entity Linking and Retrieval for Semantic Search (WSDM 2014)


This morning, we presented the last edition of our tutorial series on Entity Linking and Retrieval, entitled “Entity Linking and Retrieval for Semantic Search” (with Krisztian Balog and Daan Odijk) at WSDM 2014! This final edition of the series builds upon our earlier tutorials at WWW 2013 and SIGIR 2013. The focus of this More >

LiMoSINe - main

RepLab 2014


RepLab is a competitive evaluation exercise for Online Reputation Management systems. In 2012 and 2013, RepLab focused on the problem of monitoring the reputation of (company) entities on Twitter, and dealt with the tasks of entity linking (“Is the tweet about the entity?”), reputation polarity (“Does the tweet have positive More >

Example time series

Using Temporal Bursts for Query Modeling


In this paper, we present an approach to query modeling that leverages the temporal distribution of documents in an initially retrieved set of documents. Continue reading “Using Temporal Bursts for Query Modeling” »

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