Daniel Tunkelang

search linkedin hcir search engines endeca query understanding information retrieval retrieval data science machine learning information google hci ir enterprise ecommerce relevance faceted recommender system big data tunkelang daniel artificial intelligence library and information science search quality human-computer interaction social networks semantic faceted search mit experimentation informationretrieval economics scientific method wikipedia sspafces tags separate exploratory navigation text analytics usability web science qcon interaction computer human management organization microblogging culture software knowledge management natural language processing vectors linkedi enterprise search cikm2013 entity oriented search personalization cikm2012 recsys2012 recsys semantic web semi-structured data samasource lucene crowdsourcing search architecture explainability transparency search infrastructure measurement social network reputation social media twitter authority attention scarcity influence tunkrank human computer interaction databases embeddings