Christoph Trattner

recommender systems tagging search food social networks tags recipes health tag recommender; tags; human cognition; act-r big data social computing tag recommender; tags; human cognition; alcove; ac decentralized search navigation graz university of technology tag hierachies tag taxonomies tag clouds data science online communities meal planning internet human mobility weather patterns cars poi points of interest nutrition crowd evaluation crowdsourcing crowdflower mturk marketing mobile ratings mendeley workshop semantic media wiki wiki bio moki smart pharma taggging information retrieval tugraz concepts applications information networks pagination effect tag navigation user study browsing