{"id":"https://openalex.org/A5111647071","orcid":null,"observed_orcids":[],"display_name":"Athanasios Tsakalidis","raw_author_names":["A Tsakalidis","A. TSAKALIDIS","A. Tsakalidis","ATHANASIOS TSAKALIDIS","Athanasios Tsakalidis","\u03a4\u03c3\u03b1\u03ba\u03b1\u03bb\u03af\u03b4\u03b7\u03c2, \u0391\u03b8\u03b1\u03bd\u03ac\u03c3\u03b9\u03bf\u03c2"],"full_name":"Tsakalidis, Athanasios","works_count":204,"cited_by_count":2347,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":25,"i10_index":61},"ids":{"openalex":"https://openalex.org/A5111647071","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I120729142","ror":"https://ror.org/021nszj63","display_name":"Computer Technology Institute and Press \u201cDIOPHANTUS\u201d","country_code":"GR","type":"facility","lineage":["https://openalex.org/I120729142","https://openalex.org/I4210154149"]},"years":[2012,2011,2010,2008,2007,2006,2005,2004,2003,2002,2001,2000,1999,1998,1997,1996,1995,1993]},{"institution":{"id":"https://openalex.org/I149899117","ror":"https://ror.org/01hhn8329","display_name":"Max Planck Society","country_code":"DE","type":"nonprofit","lineage":["https://openalex.org/I149899117"]},"years":[1986]},{"institution":{"id":"https://openalex.org/I174458059","ror":"https://ror.org/03cx6bg69","display_name":"National Technical University of Athens","country_code":"GR","type":"education","lineage":["https://openalex.org/I174458059"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I174878644","ror":"https://ror.org/017wvtq80","display_name":"University of Patras","country_code":"GR","type":"education","lineage":["https://openalex.org/I174878644"]},"years":[2021,2020,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2002,2000,1999,1998,1997,1996,1995,1992]},{"institution":{"id":"https://openalex.org/I71920554","ror":"https://ror.org/01q3tbs38","display_name":"King Abdullah University of Science and Technology","country_code":"SA","type":"education","lineage":["https://openalex.org/I71920554"]},"years":[2014]},{"institution":{"id":"https://openalex.org/I91712215","ror":"https://ror.org/01jdpyv68","display_name":"Saarland University","country_code":"DE","type":"education","lineage":["https://openalex.org/I91712215"]},"years":[2005,1987]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T11269","display_name":"Algorithms and Data Compression","count":39,"subfield":{"id":"https://openalex.org/subfields/2614","display_name":"Theoretical Computer Science"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","count":26,"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/T10317","display_name":"Advanced Database Systems and Queries","count":21,"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/T10679","display_name":"Service-Oriented Architecture and Web Services","count":19,"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/T12016","display_name":"Web Data Mining and Analysis","count":18,"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"}}],"topic_share":[{"id":"https://openalex.org/T12016","display_name":"Web Data Mining and Analysis","value":0.000224,"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/T12288","display_name":"Optimization and Search Problems","value":0.0002031,"subfield":{"id":"https://openalex.org/subfields/2614","display_name":"Theoretical Computer Science"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11269","display_name":"Algorithms and Data Compression","value":0.0001889,"subfield":{"id":"https://openalex.org/subfields/2614","display_name":"Theoretical Computer Science"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14435","display_name":"Information Retrieval and Data Mining","value":0.0001854,"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/T10679","display_name":"Service-Oriented Architecture and Web Services","value":0.0001462,"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":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.9064423441886902},{"id":"136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","score":0.78782057762146},{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.6633084416389465},{"id":"154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","score":0.5731911063194275},{"id":"199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","score":0.3269615173339844}],"counts_by_year":[{"year":1986,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1995,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1997,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":11,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":7,"oa_works_count":2,"cited_by_count":0},{"year":2004,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":14,"oa_works_count":1,"cited_by_count":0},{"year":2006,"works_count":19,"oa_works_count":3,"cited_by_count":0},{"year":2007,"works_count":10,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":8,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":8,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":6,"oa_works_count":2,"cited_by_count":0},{"year":2011,"works_count":11,"oa_works_count":4,"cited_by_count":0},{"year":2012,"works_count":16,"oa_works_count":4,"cited_by_count":108},{"year":2013,"works_count":16,"oa_works_count":3,"cited_by_count":94},{"year":2014,"works_count":11,"oa_works_count":4,"cited_by_count":122},{"year":2015,"works_count":8,"oa_works_count":0,"cited_by_count":104},{"year":2016,"works_count":12,"oa_works_count":5,"cited_by_count":108},{"year":2017,"works_count":10,"oa_works_count":3,"cited_by_count":120},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":135},{"year":2019,"works_count":3,"oa_works_count":1,"cited_by_count":131},{"year":2020,"works_count":3,"oa_works_count":3,"cited_by_count":150},{"year":2021,"works_count":1,"oa_works_count":1,"cited_by_count":145},{"year":2022,"works_count":1,"oa_works_count":0,"cited_by_count":120},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":118},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":136},{"year":2025,"works_count":1,"oa_works_count":0,"cited_by_count":85},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":41}],"display_name_alternatives":["A Tsakalidis","A. TSAKALIDIS","A. Tsakalidis","ATHANASIOS TSAKALIDIS","Athanasios Tsakalidis","\u03a4\u03c3\u03b1\u03ba\u03b1\u03bb\u03af\u03b4\u03b7\u03c2, \u0391\u03b8\u03b1\u03bd\u03ac\u03c3\u03b9\u03bf\u03c2"],"block_key":"a tsakalidis","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111647071","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}