Stefan Dietze

linked data semantic web schema.org linkedup education artificial intelligence information retrieval knowledge graphs learning analytics machine learning data fusion web web science twitter stance detection gesis search as learning web search data science web mining markup entity linking profiling web data linkedup project tel meducator claim extraction information extraction fact checking hhu social web crowdsourcing microdata rdfa entity retrieval linkedup challenge open educational resources heicad nfdi4ds nlp nfdi tweetskb interactive information retrieval research data infrastructure dataset profiling rich context knowledge extraction research knowledge graph research data deep learning online learning user modeling knowledge base augmentation big data data profiling lrmi learning resources web markup l3s architecture digital libraries open education learning lak oer data curation open data cognitive psychology microlearning informal learning research knowledge graphs tweetscov19 hci human-in-the-loop discourse analysis online discourse common crawl social media analysis web crawling coleridge human computer interaction internet ai www2017 educational resources dataset recommendation retrieval afel project afel educational data mining learntec data quality knowledge discovery wikipedia data mining rdf bibliographic data aec building information modeling bim cultural heritage virtuelle forschungsumgebung vre architektur europe oec2014 interlinking data consistency schema mapping data conflicts distributed data void lde2014 exploration topic analysis topic profiling sda2013 duraark preservation tpdl2013 knowledge maps knowescape okcon educational linked data datahub lak dataset lak challenge data ariadne technology-enhanced learning recommender systems conceptual spaces web services notube