{"id":"https://openalex.org/W3008352878","doi":"https://doi.org/10.1080/13658816.2020.1730848","title":"Volunteered geographic information research in the first decade: a narrative review of selected journal articles in GIScience","display_name":"Volunteered geographic information research in the first decade: a narrative review of selected journal articles in GIScience","publication_year":2020,"publication_date":"2020-02-26","ids":{"openalex":"https://openalex.org/W3008352878","doi":"https://doi.org/10.1080/13658816.2020.1730848","mag":"3008352878"},"language":"en","primary_location":{"id":"doi:10.1080/13658816.2020.1730848","is_oa":false,"landing_page_url":"https://doi.org/10.1080/13658816.2020.1730848","pdf_url":null,"source":{"id":"https://openalex.org/S4210181446","display_name":"International Journal of Geographical Information Systems","issn_l":"0269-3798","issn":["0269-3798","1362-3087"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Geographical Information Science","raw_type":"journal-article"},"type":"review","indexed_in":["crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://figshare.com/articles/journal_contribution/Volunteered_geographic_information_research_in_the_first_decade_a_narrative_review_of_selected_journal_articles_in_GIScience/11906973","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5010532092","display_name":"Yingwei Yan","orcid":"https://orcid.org/0000-0002-3487-9792"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]},{"id":"https://openalex.org/I4210106122","display_name":"Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)","ror":"https://ror.org/00y7mag53","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210106122"]},{"id":"https://openalex.org/I4210147158","display_name":"Guangzhou Institute of Geography","ror":"https://ror.org/03tbxt129","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210147158"]}],"countries":["CN","SG"],"is_corresponding":true,"raw_author_name":"Yingwei Yan","raw_affiliation_strings":["'Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China","Guangdong Open Laboratory of Geospatial Information Technology and Application, Guangzhou Institute of Geography","National University of Singapore","Key Lab of Guangdong for Utilization of Remote Sensing and Geographical Information System, Guangdong Open Laboratory of Geospatial Information Technology and Application, Guangzhou Institute of Geography, Guangzhou, China","Department of Geography, National University of Singapore, Singapore, Singapore"],"raw_orcid":"https://orcid.org/0000-0002-3487-9792","affiliations":[{"raw_affiliation_string":"'Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China","institution_ids":["https://openalex.org/I4210106122"]},{"raw_affiliation_string":"Guangdong Open Laboratory of Geospatial Information Technology and Application, Guangzhou Institute of Geography","institution_ids":["https://openalex.org/I4210147158"]},{"raw_affiliation_string":"National University of Singapore","institution_ids":["https://openalex.org/I165932596"]},{"raw_affiliation_string":"Key Lab of Guangdong for Utilization of Remote Sensing and Geographical Information System, Guangdong Open Laboratory of Geospatial Information Technology and Application, Guangzhou Institute of Geography, Guangzhou, China","institution_ids":["https://openalex.org/I4210147158"]},{"raw_affiliation_string":"Department of Geography, National University of Singapore, Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026836764","display_name":"Chen\u2010Chieh Feng","orcid":"https://orcid.org/0000-0003-0410-714X"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Chen-Chieh Feng","raw_affiliation_strings":["National University of Singapore","Department of Geography, National University of Singapore, Singapore, Singapore"],"raw_orcid":"https://orcid.org/0000-0003-0410-714X","affiliations":[{"raw_affiliation_string":"National University of Singapore","institution_ids":["https://openalex.org/I165932596"]},{"raw_affiliation_string":"Department of Geography, National University of Singapore, Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072873702","display_name":"Wei Huang","orcid":"https://orcid.org/0000-0001-8324-8877"},"institutions":[{"id":"https://openalex.org/I1280525279","display_name":"Ministry of Transportation of Ontario","ror":"https://ror.org/009nawz64","country_code":"CA","type":"government","lineage":["https://openalex.org/I1280525279"]},{"id":"https://openalex.org/I530967","display_name":"Toronto Metropolitan University","ror":"https://ror.org/05g13zd79","country_code":"CA","type":"education","lineage":["https://openalex.org/I530967"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Wei Huang","raw_affiliation_strings":["Ministry of Transportation Ontario","Ryerson University","System Planning Branch, Ministry of Transportation Ontario, Toronto, Canada","Department of Civil Engineering, Ryerson University, Toronto, Canada"],"raw_orcid":"https://orcid.org/0000-0001-8324-8877","affiliations":[{"raw_affiliation_string":"Ministry of Transportation Ontario","institution_ids":[]},{"raw_affiliation_string":"Ryerson University","institution_ids":["https://openalex.org/I530967"]},{"raw_affiliation_string":"System Planning Branch, Ministry of Transportation Ontario, Toronto, Canada","institution_ids":["https://openalex.org/I1280525279"]},{"raw_affiliation_string":"Department of Civil Engineering, Ryerson University, Toronto, Canada","institution_ids":["https://openalex.org/I530967"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036083161","display_name":"Hongchao Fan","orcid":"https://orcid.org/0000-0002-0051-7451"},"institutions":[{"id":"https://openalex.org/I204778367","display_name":"Norwegian University of Science and Technology","ror":"https://ror.org/05xg72x27","country_code":"NO","type":"education","lineage":["https://openalex.org/I204778367"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Hongchao Fan","raw_affiliation_strings":["Norwegian University of Science and Technology","Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Norwegian University of Science and Technology","institution_ids":["https://openalex.org/I204778367"]},{"raw_affiliation_string":"Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Trondheim, Norway","institution_ids":["https://openalex.org/I204778367"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037305607","display_name":"Yi\u2010Chen Wang","orcid":"https://orcid.org/0000-0002-3034-7377"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Yi-Chen Wang","raw_affiliation_strings":["National University of Singapore","Department of Geography, National University of Singapore, Singapore, Singapore"],"raw_orcid":"https://orcid.org/0000-0002-3034-7377","affiliations":[{"raw_affiliation_string":"National University of Singapore","institution_ids":["https://openalex.org/I165932596"]},{"raw_affiliation_string":"Department of Geography, National University of Singapore, Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091474205","display_name":"Alexander Zipf","orcid":"https://orcid.org/0000-0003-4916-9838"},"institutions":[{"id":"https://openalex.org/I223822909","display_name":"Heidelberg University","ror":"https://ror.org/038t36y30","country_code":"DE","type":"education","lineage":["https://openalex.org/I223822909"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Alexander Zipf","raw_affiliation_strings":["Heidelberg University","GIScience Research Group, Institute of Geography, Heidelberg University, Heidelberg, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Heidelberg University","institution_ids":["https://openalex.org/I223822909"]},{"raw_affiliation_string":"GIScience Research Group, Institute of Geography, Heidelberg University, Heidelberg, Germany","institution_ids":["https://openalex.org/I223822909"]}]}],"institutions":[],"countries_distinct_count":5,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5010532092"],"corresponding_institution_ids":["https://openalex.org/I165932596","https://openalex.org/I4210106122","https://openalex.org/I4210147158"],"apc_list":null,"apc_paid":null,"fwci":53.3061,"has_fulltext":false,"cited_by_count":115,"citation_normalized_percentile":{"value":0.99853193,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":"34","issue":"9","first_page":"1765","last_page":"1791"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10757","display_name":"Geographic Information Systems Studies","score":0.9998000264167786,"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"}},"topics":[{"id":"https://openalex.org/T10757","display_name":"Geographic Information Systems Studies","score":0.9998000264167786,"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":0.9581999778747559,"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"}},{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9542999863624573,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/volunteered-geographic-information","display_name":"Volunteered geographic information","score":0.8632873296737671},{"id":"https://openalex.org/keywords/narrative","display_name":"Narrative","score":0.5868759751319885},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.5280816555023193},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.5092829465866089},{"id":"https://openalex.org/keywords/geographic-information-system","display_name":"Geographic information system","score":0.4500279724597931},{"id":"https://openalex.org/keywords/library-science","display_name":"Library science","score":0.40330612659454346},{"id":"https://openalex.org/keywords/cartography","display_name":"Cartography","score":0.4030188322067261},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.3383001983165741},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.3326012194156647},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.25378698110580444},{"id":"https://openalex.org/keywords/linguistics","display_name":"Linguistics","score":0.10420602560043335}],"concepts":[{"id":"https://openalex.org/C57380593","wikidata":"https://www.wikidata.org/wiki/Q933625","display_name":"Volunteered geographic information","level":2,"score":0.8632873296737671},{"id":"https://openalex.org/C199033989","wikidata":"https://www.wikidata.org/wiki/Q1318295","display_name":"Narrative","level":2,"score":0.5868759751319885},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.5280816555023193},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.5092829465866089},{"id":"https://openalex.org/C41856607","wikidata":"https://www.wikidata.org/wiki/Q483130","display_name":"Geographic information system","level":2,"score":0.4500279724597931},{"id":"https://openalex.org/C161191863","wikidata":"https://www.wikidata.org/wiki/Q199655","display_name":"Library science","level":1,"score":0.40330612659454346},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.4030188322067261},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.3383001983165741},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.3326012194156647},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.25378698110580444},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.10420602560043335},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1080/13658816.2020.1730848","is_oa":false,"landing_page_url":"https://doi.org/10.1080/13658816.2020.1730848","pdf_url":null,"source":{"id":"https://openalex.org/S4210181446","display_name":"International Journal of Geographical Information Systems","issn_l":"0269-3798","issn":["0269-3798","1362-3087"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Geographical Information Science","raw_type":"journal-article"},{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/176310","is_oa":false,"landing_page_url":"https://scholarbank.nus.edu.sg/handle/10635/176310","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","issn_l":null,"issn":[],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Taylor & Francis","raw_type":"Review"},{"id":"pmh:oai:figshare.com:article/11906973","is_oa":true,"landing_page_url":"https://figshare.com/articles/journal_contribution/Volunteered_geographic_information_research_in_the_first_decade_a_narrative_review_of_selected_journal_articles_in_GIScience/11906973","pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},{"id":"doi:10.6084/m9.figshare.11906973.v1","is_oa":true,"landing_page_url":"https://doi.org/10.6084/m9.figshare.11906973.v1","pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"article-journal"}],"best_oa_location":{"id":"pmh:oai:figshare.com:article/11906973","is_oa":true,"landing_page_url":"https://figshare.com/articles/journal_contribution/Volunteered_geographic_information_research_in_the_first_decade_a_narrative_review_of_selected_journal_articles_in_GIScience/11906973","pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G531458391","display_name":null,"funder_award_id":"2016ZT06D336","funder_id":"https://openalex.org/F4320313609","funder_display_name":"Guangdong Innovative and Entrepreneurial Research Team Program"},{"id":"https://openalex.org/G6798227682","display_name":null,"funder_award_id":"41901330","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320313609","display_name":"Guangdong Innovative and Entrepreneurial Research Team Program","ror":null},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":163,"referenced_works":["https://openalex.org/W194327752","https://openalex.org/W1531640903","https://openalex.org/W1567900972","https://openalex.org/W1577679775","https://openalex.org/W1605774547","https://openalex.org/W1732828232","https://openalex.org/W1764053936","https://openalex.org/W1771735916","https://openalex.org/W1776314870","https://openalex.org/W1779768347","https://openalex.org/W1880262756","https://openalex.org/W1882212575","https://openalex.org/W1910465634","https://openalex.org/W1914094182","https://openalex.org/W1937987873","https://openalex.org/W1955205949","https://openalex.org/W1969822335","https://openalex.org/W1971375508","https://openalex.org/W1971824319","https://openalex.org/W1976840258","https://openalex.org/W1977083569","https://openalex.org/W1978018233","https://openalex.org/W1980936155","https://openalex.org/W1983409880","https://openalex.org/W1984334494","https://openalex.org/W1985153954","https://openalex.org/W1986724421","https://openalex.org/W1991837421","https://openalex.org/W1992154601","https://openalex.org/W1996517959","https://openalex.org/W1999067574","https://openalex.org/W2003383289","https://openalex.org/W2003425021","https://openalex.org/W2004492980","https://openalex.org/W2006480939","https://openalex.org/W2007151360","https://openalex.org/W2008515050","https://openalex.org/W2011094773","https://openalex.org/W2012021896","https://openalex.org/W2012986027","https://openalex.org/W2013326020","https://openalex.org/W2019459432","https://openalex.org/W2019899020","https://openalex.org/W2022664803","https://openalex.org/W2032449447","https://openalex.org/W2035167631","https://openalex.org/W2035563469","https://openalex.org/W2038043464","https://openalex.org/W2038651822","https://openalex.org/W2039530979","https://openalex.org/W2040166608","https://openalex.org/W2042713681","https://openalex.org/W2043585328","https://openalex.org/W2043663934","https://openalex.org/W2044572444","https://openalex.org/W2045189474","https://openalex.org/W2050636815","https://openalex.org/W2063935068","https://openalex.org/W2067600256","https://openalex.org/W2072438084","https://openalex.org/W2074329167","https://openalex.org/W2076520583","https://openalex.org/W2076531480","https://openalex.org/W2077780421","https://openalex.org/W2079192563","https://openalex.org/W2079665898","https://openalex.org/W2080116256","https://openalex.org/W2080549699","https://openalex.org/W2080556164","https://openalex.org/W2082216607","https://openalex.org/W2087369113","https://openalex.org/W2087558158","https://openalex.org/W2088301274","https://openalex.org/W2088411399","https://openalex.org/W2094083682","https://openalex.org/W2099504029","https://openalex.org/W2102302334","https://openalex.org/W2102786533","https://openalex.org/W2112620321","https://openalex.org/W2113952623","https://openalex.org/W2114025917","https://openalex.org/W2114161167","https://openalex.org/W2116597721","https://openalex.org/W2117810730","https://openalex.org/W2118480788","https://openalex.org/W2118657771","https://openalex.org/W2128936252","https://openalex.org/W2134317842","https://openalex.org/W2134592304","https://openalex.org/W2151519001","https://openalex.org/W2158432188","https://openalex.org/W2170122838","https://openalex.org/W2172008902","https://openalex.org/W2196332753","https://openalex.org/W2202958134","https://openalex.org/W2208053652","https://openalex.org/W2257903775","https://openalex.org/W2260167017","https://openalex.org/W2282616409","https://openalex.org/W2282843612","https://openalex.org/W2287642693","https://openalex.org/W2298533687","https://openalex.org/W2341597379","https://openalex.org/W2344199778","https://openalex.org/W2362555197","https://openalex.org/W2406074753","https://openalex.org/W2407205744","https://openalex.org/W2412667021","https://openalex.org/W2418439295","https://openalex.org/W2462351999","https://openalex.org/W2465804542","https://openalex.org/W2467926261","https://openalex.org/W2485367107","https://openalex.org/W2485451845","https://openalex.org/W2514402957","https://openalex.org/W2515075153","https://openalex.org/W2522495043","https://openalex.org/W2523224585","https://openalex.org/W2529101452","https://openalex.org/W2530901361","https://openalex.org/W2549412929","https://openalex.org/W2551510638","https://openalex.org/W2554531635","https://openalex.org/W2556935535","https://openalex.org/W2559801640","https://openalex.org/W2560594996","https://openalex.org/W2570597257","https://openalex.org/W2586749094","https://openalex.org/W2604990514","https://openalex.org/W2605826220","https://openalex.org/W2610381973","https://openalex.org/W2611498024","https://openalex.org/W2621816065","https://openalex.org/W2676259932","https://openalex.org/W2684451029","https://openalex.org/W2738676247","https://openalex.org/W2743860013","https://openalex.org/W2745627344","https://openalex.org/W2750351539","https://openalex.org/W2751679866","https://openalex.org/W2883556522","https://openalex.org/W3102725001","https://openalex.org/W3122538633","https://openalex.org/W4229735743","https://openalex.org/W4231140017","https://openalex.org/W4234289521","https://openalex.org/W4239189618","https://openalex.org/W4240560622","https://openalex.org/W4241282400","https://openalex.org/W4244124508","https://openalex.org/W4245847657","https://openalex.org/W4247806668","https://openalex.org/W4248192011","https://openalex.org/W4248231137","https://openalex.org/W4248782237","https://openalex.org/W4249389611","https://openalex.org/W4249550832","https://openalex.org/W4250368283","https://openalex.org/W4251489445","https://openalex.org/W4254005817","https://openalex.org/W4254389352","https://openalex.org/W4254928965","https://openalex.org/W4300770594"],"related_works":["https://openalex.org/W2733029865","https://openalex.org/W1991837421","https://openalex.org/W2955098766","https://openalex.org/W2269136550","https://openalex.org/W3041947657","https://openalex.org/W2114948960","https://openalex.org/W2464857583","https://openalex.org/W993436984","https://openalex.org/W2945592045","https://openalex.org/W4231490493"],"abstract_inverted_index":{"More":[0],"than":[1],"10":[2],"years":[3],"have":[4,48,110],"passed":[5],"since":[6],"the":[7,10,21,27,85,152,155,160,163,169,176,179],"coining":[8],"of":[9,23,26,33,57,59,72,88,151],"term":[11],"volunteered":[12],"geographic":[13],"information":[14],"(VGI)":[15],"in":[16,37,42,69],"2007.":[17],"This":[18,172],"article":[19,173],"presents":[20],"results":[22],"a":[24,124],"review":[25,52,150],"literature":[28],"concerning":[29],"VGI.":[30,89,106],"A":[31],"total":[32],"346":[34],"articles":[35,153],"published":[36],"24":[38],"international":[39],"refereed":[40],"journals":[41],"GIScience":[43],"between":[44],"2007":[45],"and":[46,64,66,76,118,137,144,147,162,187],"2017":[47],"been":[49,111],"reviewed.":[50],"The":[51,107,128,149],"has":[53,98,158,182],"uncovered":[54],"varying":[55,67],"levels":[56],"popularity":[58],"VGI":[60,73,130,135],"research":[61,102,131,181,194],"over":[62],"space":[63],"time,":[65],"interests":[68],"various":[70],"sources":[71],"(e.g.":[74,79],"OpenStreetMap)":[75],"VGI-related":[77],"terms":[78],"user-generated":[80],"content)":[81],"that":[82,165,178],"point":[83],"to":[84,105,122],"multi-perspective":[86],"nature":[87],"Content-wise,":[90],"using":[91],"latent":[92],"Dirichlet":[93],"allocation":[94],"(LDA),":[95],"this":[96],"study":[97],"extracted":[99],"50":[100,108],"specific":[101],"topics":[103,109,117],"pertinent":[104],"subsequently":[112],"clustered":[113],"into":[114],"13":[115],"intermediate":[116],"three":[119,156],"overarching":[120,129],"themes":[121,132,157],"allow":[123],"hierarchical":[125],"topic":[126],"review.":[127],"include":[133],"(1)":[134],"contributions":[136],"contributors,":[138],"(2)":[139],"main":[140],"fields":[141],"applying":[142],"VGI,":[143],"(3)":[145],"conceptions":[146],"envisions.":[148],"under":[154],"revealed":[159],"progress":[161],"points":[164],"demand":[166],"attention":[167],"regarding":[168],"individual":[170],"topics.":[171],"also":[174],"discusses":[175],"areas":[177],"existing":[180],"not":[183],"yet":[184],"adequately":[185],"explored":[186],"proposes":[188],"an":[189],"agenda":[190],"for":[191],"potential":[192],"future":[193],"endeavors.":[195]},"counts_by_year":[{"year":2026,"cited_by_count":5},{"year":2025,"cited_by_count":17},{"year":2024,"cited_by_count":20},{"year":2023,"cited_by_count":14},{"year":2022,"cited_by_count":28},{"year":2021,"cited_by_count":25},{"year":2020,"cited_by_count":6}],"updated_date":"2026-05-20T08:49:12.498775","created_date":"2025-10-10T00:00:00"}