{"id":"https://openalex.org/A5039159478","orcid":null,"observed_orcids":[],"display_name":"Keiji Shinzato","raw_author_names":["KEIJI SHINZATO","Keiji Shinzato","Shinzato, Keiji"],"full_name":"Shinzato, Keiji","works_count":36,"cited_by_count":310,"summary_stats":{"2yr_mean_citedness":4.0,"h_index":12,"i10_index":14},"ids":{"openalex":"https://openalex.org/A5039159478","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1301041018","ror":"https://ror.org/0098kke80","display_name":"Rakuten (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I1301041018"]},"years":[2024,2023,2022,2020,2018,2016,2015,2013,2011]},{"institution":{"id":"https://openalex.org/I146399215","ror":"https://ror.org/02956yf07","display_name":"University of Tsukuba","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]},"years":[2013]},{"institution":{"id":"https://openalex.org/I177738480","ror":"https://ror.org/03frj4r98","display_name":"Japan Advanced Institute of Science and Technology","country_code":"JP","type":"education","lineage":["https://openalex.org/I177738480"]},"years":[2005,2004]},{"institution":{"id":"https://openalex.org/I22299242","ror":"https://ror.org/02kpeqv85","display_name":"Kyoto University","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]},"years":[2012,2011,2010,2009,2008]},{"institution":{"id":"https://openalex.org/I2251713219","ror":"https://ror.org/00berct97","display_name":"NTT (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]},"years":[2011]},{"institution":{"id":"https://openalex.org/I4405287318","ror":"https://ror.org/04t6zpd80","display_name":"Institute of Industrial Science, The University of Tokyo","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4405287318","https://openalex.org/I74801974"]},"years":[2023,2022]},{"institution":{"id":"https://openalex.org/I74801974","ror":"https://ror.org/057zh3y96","display_name":"The University of Tokyo","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]},"years":[2023,2022]}],"last_known_institutions":[{"id":"https://openalex.org/I1301041018","ror":"https://ror.org/0098kke80","display_name":"Rakuten (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I1301041018"]}],"topics":[{"id":"https://openalex.org/T10028","display_name":"Topic Modeling","count":23,"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/T10286","display_name":"Information Retrieval and Search Behavior","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/T10181","display_name":"Natural Language Processing Techniques","count":18,"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/T12016","display_name":"Web Data Mining and Analysis","count":15,"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/T10664","display_name":"Sentiment Analysis and Opinion Mining","count":5,"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/T12016","display_name":"Web Data Mining and Analysis","value":0.0001859,"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","value":5.89e-05,"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/T10028","display_name":"Topic Modeling","value":4.62e-05,"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/T10181","display_name":"Natural Language Processing Techniques","value":3.78e-05,"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/T11550","display_name":"Text and Document Classification Technologies","value":3.36e-05,"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"}}],"x_concepts":[{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.8854588866233826},{"id":"23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","score":0.7018457651138306},{"id":"204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","score":0.6274163126945496},{"id":"124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","score":0.5735999941825867},{"id":"154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","score":0.5649617314338684}],"counts_by_year":[{"year":2004,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":1,"cited_by_count":15},{"year":2013,"works_count":4,"oa_works_count":1,"cited_by_count":12},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":17},{"year":2015,"works_count":2,"oa_works_count":0,"cited_by_count":13},{"year":2016,"works_count":1,"oa_works_count":1,"cited_by_count":10},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":10},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":13},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":12},{"year":2020,"works_count":1,"oa_works_count":0,"cited_by_count":17},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2022,"works_count":8,"oa_works_count":8,"cited_by_count":15},{"year":2023,"works_count":3,"oa_works_count":3,"cited_by_count":25},{"year":2024,"works_count":3,"oa_works_count":3,"cited_by_count":28},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":23},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":8}],"display_name_alternatives":["KEIJI SHINZATO","Keiji Shinzato","Shinzato, Keiji"],"block_key":"k shinzato","works_api_url":"https://api.openalex.org/works?filter=author.id:A5039159478","awards_count":0,"updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}
