{"id":"https://openalex.org/W1530121710","doi":"https://doi.org/10.1007/978-3-642-10436-7_8","title":"A Spatial User Similarity Measure for Geographic Recommender Systems","display_name":"A Spatial User Similarity Measure for Geographic Recommender Systems","publication_year":2009,"publication_date":"2009-01-01","ids":{"openalex":"https://openalex.org/W1530121710","doi":"https://doi.org/10.1007/978-3-642-10436-7_8","mag":"1530121710"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-642-10436-7_8","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-10436-7_8","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"book-chapter","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5076455331","display_name":"Christian Matyas","orcid":null},"institutions":[{"id":"https://openalex.org/I94626330","display_name":"University of Bamberg","ror":"https://ror.org/01c1w6d29","country_code":"DE","type":"education","lineage":["https://openalex.org/I94626330"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Christian Matyas","raw_affiliation_strings":["Laboratory for Semantic Information Technology, University of Bamberg, Feldkirchenstrasse 21, 96052, Bamberg, Germany"],"affiliations":[{"raw_affiliation_string":"Laboratory for Semantic Information Technology, University of Bamberg, Feldkirchenstrasse 21, 96052, Bamberg, Germany","institution_ids":["https://openalex.org/I94626330"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5063873284","display_name":"Christoph Schlieder","orcid":null},"institutions":[{"id":"https://openalex.org/I94626330","display_name":"University of Bamberg","ror":"https://ror.org/01c1w6d29","country_code":"DE","type":"education","lineage":["https://openalex.org/I94626330"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Christoph Schlieder","raw_affiliation_strings":["Laboratory for Semantic Information Technology, University of Bamberg, Feldkirchenstrasse 21, 96052, Bamberg, Germany"],"affiliations":[{"raw_affiliation_string":"Laboratory for Semantic Information Technology, University of Bamberg, Feldkirchenstrasse 21, 96052, Bamberg, Germany","institution_ids":["https://openalex.org/I94626330"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5076455331"],"corresponding_institution_ids":["https://openalex.org/I94626330"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":2.7406,"has_fulltext":false,"cited_by_count":25,"citation_normalized_percentile":{"value":0.89765897,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"122","last_page":"139"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9993000030517578,"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"}},"topics":[{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9993000030517578,"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/T10757","display_name":"Geographic Information Systems Studies","score":0.9966999888420105,"subfield":{"id":"https://openalex.org/subfields/3305","display_name":"Geography, Planning and Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9952999949455261,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8387575149536133},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.8363460302352905},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.6573607921600342},{"id":"https://openalex.org/keywords/similarity","display_name":"Similarity (geometry)","score":0.6458854079246521},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.62108314037323},{"id":"https://openalex.org/keywords/georeference","display_name":"Georeference","score":0.5198281407356262},{"id":"https://openalex.org/keywords/task","display_name":"Task (project management)","score":0.505308210849762},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.46306151151657104},{"id":"https://openalex.org/keywords/geographic-coordinate-system","display_name":"Geographic coordinate system","score":0.4560115933418274},{"id":"https://openalex.org/keywords/geographic-information-system","display_name":"Geographic information system","score":0.4202510118484497},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.19025784730911255},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.18120631575584412},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.12557822465896606},{"id":"https://openalex.org/keywords/cartography","display_name":"Cartography","score":0.10323953628540039}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8387575149536133},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.8363460302352905},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.6573607921600342},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.6458854079246521},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.62108314037323},{"id":"https://openalex.org/C75145180","wikidata":"https://www.wikidata.org/wiki/Q772007","display_name":"Georeference","level":2,"score":0.5198281407356262},{"id":"https://openalex.org/C2780451532","wikidata":"https://www.wikidata.org/wiki/Q759676","display_name":"Task (project management)","level":2,"score":0.505308210849762},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.46306151151657104},{"id":"https://openalex.org/C123046963","wikidata":"https://www.wikidata.org/wiki/Q22664","display_name":"Geographic coordinate system","level":2,"score":0.4560115933418274},{"id":"https://openalex.org/C41856607","wikidata":"https://www.wikidata.org/wiki/Q483130","display_name":"Geographic information system","level":2,"score":0.4202510118484497},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.19025784730911255},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.18120631575584412},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.12557822465896606},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.10323953628540039},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C100970517","wikidata":"https://www.wikidata.org/wiki/Q52107","display_name":"Physical geography","level":1,"score":0.0},{"id":"https://openalex.org/C187736073","wikidata":"https://www.wikidata.org/wiki/Q2920921","display_name":"Management","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/978-3-642-10436-7_8","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-10436-7_8","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":38,"referenced_works":["https://openalex.org/W37655059","https://openalex.org/W189534369","https://openalex.org/W281665770","https://openalex.org/W1545502430","https://openalex.org/W1581433199","https://openalex.org/W1594603013","https://openalex.org/W1659833910","https://openalex.org/W1877784842","https://openalex.org/W1971040550","https://openalex.org/W1972156947","https://openalex.org/W1976050545","https://openalex.org/W2000390665","https://openalex.org/W2017894137","https://openalex.org/W2023954349","https://openalex.org/W2026010978","https://openalex.org/W2055838835","https://openalex.org/W2059975159","https://openalex.org/W2069730641","https://openalex.org/W2084180754","https://openalex.org/W2097951507","https://openalex.org/W2104732110","https://openalex.org/W2116165494","https://openalex.org/W2128629010","https://openalex.org/W2129201358","https://openalex.org/W2138899136","https://openalex.org/W2155106456","https://openalex.org/W2156730765","https://openalex.org/W2159094788","https://openalex.org/W2165046037","https://openalex.org/W2171385712","https://openalex.org/W2495460329","https://openalex.org/W2498185067","https://openalex.org/W2549412929","https://openalex.org/W2561675875","https://openalex.org/W2622649513","https://openalex.org/W2737184189","https://openalex.org/W3035258717","https://openalex.org/W4254702595"],"related_works":["https://openalex.org/W2772628444","https://openalex.org/W1484355083","https://openalex.org/W2735929803","https://openalex.org/W4220714703","https://openalex.org/W3008845055","https://openalex.org/W2098758514","https://openalex.org/W2170391450","https://openalex.org/W4376854386","https://openalex.org/W2202724490","https://openalex.org/W2508671622"],"abstract_inverted_index":null,"counts_by_year":[{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}