{"id":"https://openalex.org/A5005545405","orcid":"https://orcid.org/0000-0002-4698-8507","observed_orcids":["https://orcid.org/0000-0002-4698-8507"],"display_name":"Dietmar Jannach","raw_author_names":["D. Jannach","DIETMAR JANNACH","Dietmar Jannach","Jannach D.","Jannach Dietmar","Jannach, Dietmar","JannachDietmar","jannach, Dietmar"],"full_name":"Jannach, Dietmar","works_count":417,"cited_by_count":16263,"summary_stats":{"2yr_mean_citedness":7.461538461538462,"h_index":61,"i10_index":191},"ids":{"openalex":"https://openalex.org/A5005545405","orcid":"https://orcid.org/0000-0002-4698-8507","observed_orcids":["https://orcid.org/0000-0002-4698-8507"]},"affiliations":[{"institution":{"id":"https://openalex.org/I130238516","ror":"https://ror.org/017zqws13","display_name":"University of Minnesota","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]},"years":[2017]},{"institution":{"id":"https://openalex.org/I134023368","ror":"https://ror.org/001zf8v27","display_name":"Institute for Interdisciplinary Studies of Austrian Universities","country_code":"AT","type":"education","lineage":["https://openalex.org/I134023368","https://openalex.org/I4210166741"]},"years":[2021,2020,2019]},{"institution":{"id":"https://openalex.org/I200332995","ror":"https://ror.org/01k97gp34","display_name":"TU Dortmund University","country_code":"DE","type":"education","lineage":["https://openalex.org/I200332995"]},"years":[2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008]},{"institution":{"id":"https://openalex.org/I31746571","ror":"https://ror.org/03r8z3t63","display_name":"UNSW Sydney","country_code":"AU","type":"education","lineage":["https://openalex.org/I31746571"]},"years":[2025]},{"institution":{"id":"https://openalex.org/I4210166741","ror":"https://ror.org/05q9m0937","display_name":"University of Klagenfurt","country_code":"AT","type":"education","lineage":["https://openalex.org/I4210166741"]},"years":[2026,2025,2024,2023,2022,2021,2020,2019,2018,2017,2016,2014,2012,2011,2008,2007,2006,2005,2004,2003,2002,2001,2000,1999]},{"institution":{"id":"https://openalex.org/I4432739","ror":"https://ror.org/03zga2b32","display_name":"University of Bergen","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]},"years":[2026,2024]},{"institution":{"id":"https://openalex.org/I68618741","ror":"https://ror.org/03c44v465","display_name":"Polytechnic University of Bari","country_code":"IT","type":"education","lineage":["https://openalex.org/I68618741"]},"years":[2026]},{"institution":{"id":"https://openalex.org/I861853513","ror":"https://ror.org/02be6w209","display_name":"Sapienza University of Rome","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]},"years":[2026]},{"institution":{"id":"https://openalex.org/I98677209","ror":"https://ror.org/01nrxwf90","display_name":"University of Edinburgh","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]},"years":[2026]}],"last_known_institutions":[{"id":"https://openalex.org/I4210166741","ror":"https://ror.org/05q9m0937","display_name":"University of Klagenfurt","country_code":"AT","type":"education","lineage":["https://openalex.org/I4210166741"]},{"id":"https://openalex.org/I4432739","ror":"https://ror.org/03zga2b32","display_name":"University of Bergen","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]},{"id":"https://openalex.org/I68618741","ror":"https://ror.org/03c44v465","display_name":"Polytechnic University of Bari","country_code":"IT","type":"education","lineage":["https://openalex.org/I68618741"]},{"id":"https://openalex.org/I861853513","ror":"https://ror.org/02be6w209","display_name":"Sapienza University of Rome","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]},{"id":"https://openalex.org/I98677209","ror":"https://ror.org/01nrxwf90","display_name":"University of Edinburgh","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"topics":[{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","count":275,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10286","display_name":"Information Retrieval and Search Behavior","count":189,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12101","display_name":"Advanced Bandit Algorithms Research","count":105,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10639","display_name":"Advanced Software Engineering Methodologies","count":40,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10215","display_name":"Semantic Web and Ontologies","count":33,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12101","display_name":"Advanced Bandit Algorithms Research","value":0.0016309,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","value":0.0013717,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13197","display_name":"Spreadsheets and End-User Computing","value":0.0005612,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10286","display_name":"Information Retrieval and Search Behavior","value":0.0005493,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14435","display_name":"Information Retrieval and Data Mining","value":0.0004268,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","score":0.9600142240524292},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.9324482679367065},{"id":"154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","score":0.7798773050308228},{"id":"23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","score":0.752282977104187},{"id":"136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","score":0.6938379406929016}],"counts_by_year":[{"year":1999,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":10,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":12,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":18,"oa_works_count":2,"cited_by_count":0},{"year":2003,"works_count":8,"oa_works_count":1,"cited_by_count":0},{"year":2004,"works_count":8,"oa_works_count":1,"cited_by_count":0},{"year":2005,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":14,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":14,"oa_works_count":3,"cited_by_count":0},{"year":2008,"works_count":11,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":10,"oa_works_count":2,"cited_by_count":0},{"year":2010,"works_count":26,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":12,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":11,"oa_works_count":2,"cited_by_count":301},{"year":2013,"works_count":12,"oa_works_count":4,"cited_by_count":354},{"year":2014,"works_count":15,"oa_works_count":2,"cited_by_count":453},{"year":2015,"works_count":15,"oa_works_count":2,"cited_by_count":407},{"year":2016,"works_count":18,"oa_works_count":4,"cited_by_count":430},{"year":2017,"works_count":22,"oa_works_count":2,"cited_by_count":674},{"year":2018,"works_count":18,"oa_works_count":6,"cited_by_count":828},{"year":2019,"works_count":20,"oa_works_count":10,"cited_by_count":1064},{"year":2020,"works_count":14,"oa_works_count":9,"cited_by_count":1182},{"year":2021,"works_count":21,"oa_works_count":13,"cited_by_count":1462},{"year":2022,"works_count":19,"oa_works_count":16,"cited_by_count":1422},{"year":2023,"works_count":16,"oa_works_count":15,"cited_by_count":1536},{"year":2024,"works_count":16,"oa_works_count":12,"cited_by_count":2059},{"year":2025,"works_count":27,"oa_works_count":20,"cited_by_count":1650},{"year":2026,"works_count":22,"oa_works_count":22,"cited_by_count":1396}],"display_name_alternatives":["D. Jannach","DIETMAR JANNACH","Dietmar Jannach","Jannach D.","Jannach Dietmar","Jannach, Dietmar","JannachDietmar","jannach, Dietmar"],"block_key":"d jannach","works_api_url":"https://api.openalex.org/works?filter=author.id:A5005545405","updated_date":"2026-11-05T13:29:08","created_date":"2016-06-24T00:00:00"}
