{"id":"https://openalex.org/W2020267482","doi":"https://doi.org/10.1007/s10844-009-0104-9","title":"Subspace tree: high dimensional multimedia indexing with logarithmic temporal complexity","display_name":"Subspace tree: high dimensional multimedia indexing with logarithmic temporal complexity","publication_year":2009,"publication_date":"2009-10-21","ids":{"openalex":"https://openalex.org/W2020267482","doi":"https://doi.org/10.1007/s10844-009-0104-9","mag":"2020267482"},"language":"en","primary_location":{"id":"doi:10.1007/s10844-009-0104-9","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s10844-009-0104-9","pdf_url":null,"source":{"id":"https://openalex.org/S36033921","display_name":"Journal of Intelligent Information Systems","issn_l":"0925-9902","issn":["0925-9902","1573-7675"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Intelligent Information Systems","raw_type":"journal-article"},"type":"article","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/A5022840676","display_name":"Andreas Wichert","orcid":"https://orcid.org/0000-0002-2179-4378"},"institutions":[{"id":"https://openalex.org/I121345201","display_name":"Instituto de Engenharia de Sistemas e Computadores Investiga\u00e7\u00e3o e Desenvolvimento","ror":"https://ror.org/04mqy3p58","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I121345201","https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":true,"raw_author_name":"Andreas Wichert","raw_affiliation_strings":["Department of Informatics, INESC-ID / IST \u2014 Technical University of Lisboa, Lisboa, Portugal","Department of Informatics, INESC-ID / IST -- Technical University of Lisboa, Lisboa, Portugal#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Informatics, INESC-ID / IST \u2014 Technical University of Lisboa, Lisboa, Portugal","institution_ids":["https://openalex.org/I121345201"]},{"raw_affiliation_string":"Department of Informatics, INESC-ID / IST -- Technical University of Lisboa, Lisboa, Portugal#TAB#","institution_ids":["https://openalex.org/I121345201"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047709606","display_name":"Pedro Teixeira","orcid":"https://orcid.org/0000-0003-4395-4296"},"institutions":[{"id":"https://openalex.org/I121345201","display_name":"Instituto de Engenharia de Sistemas e Computadores Investiga\u00e7\u00e3o e Desenvolvimento","ror":"https://ror.org/04mqy3p58","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I121345201","https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Pedro Teixeira","raw_affiliation_strings":["Department of Informatics, INESC-ID / IST \u2014 Technical University of Lisboa, Lisboa, Portugal","Department of Informatics, INESC-ID / IST -- Technical University of Lisboa, Lisboa, Portugal#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Informatics, INESC-ID / IST \u2014 Technical University of Lisboa, Lisboa, Portugal","institution_ids":["https://openalex.org/I121345201"]},{"raw_affiliation_string":"Department of Informatics, INESC-ID / IST -- Technical University of Lisboa, Lisboa, Portugal#TAB#","institution_ids":["https://openalex.org/I121345201"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056845990","display_name":"Pedro A. Santos","orcid":"https://orcid.org/0000-0002-1369-0085"},"institutions":[{"id":"https://openalex.org/I121345201","display_name":"Instituto de Engenharia de Sistemas e Computadores Investiga\u00e7\u00e3o e Desenvolvimento","ror":"https://ror.org/04mqy3p58","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I121345201","https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Pedro Santos","raw_affiliation_strings":["Department of Informatics, INESC-ID / IST \u2014 Technical University of Lisboa, Lisboa, Portugal","Department of Informatics, INESC-ID / IST -- Technical University of Lisboa, Lisboa, Portugal#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Informatics, INESC-ID / IST \u2014 Technical University of Lisboa, Lisboa, Portugal","institution_ids":["https://openalex.org/I121345201"]},{"raw_affiliation_string":"Department of Informatics, INESC-ID / IST -- Technical University of Lisboa, Lisboa, Portugal#TAB#","institution_ids":["https://openalex.org/I121345201"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5010625393","display_name":"H\u00e9l\u00e9na Galhardas","orcid":"https://orcid.org/0000-0002-9330-3910"},"institutions":[{"id":"https://openalex.org/I121345201","display_name":"Instituto de Engenharia de Sistemas e Computadores Investiga\u00e7\u00e3o e Desenvolvimento","ror":"https://ror.org/04mqy3p58","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I121345201","https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Helena Galhardas","raw_affiliation_strings":["Department of Informatics, INESC-ID / IST \u2014 Technical University of Lisboa, Lisboa, Portugal","Department of Informatics, INESC-ID / IST -- Technical University of Lisboa, Lisboa, Portugal#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Informatics, INESC-ID / IST \u2014 Technical University of Lisboa, Lisboa, Portugal","institution_ids":["https://openalex.org/I121345201"]},{"raw_affiliation_string":"Department of Informatics, INESC-ID / IST -- Technical University of Lisboa, Lisboa, Portugal#TAB#","institution_ids":["https://openalex.org/I121345201"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5022840676"],"corresponding_institution_ids":["https://openalex.org/I121345201"],"apc_list":{"value":3090,"currency":"USD","value_usd":3090},"apc_paid":null,"fwci":0.6436,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.75665414,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":"35","issue":"3","first_page":"495","last_page":"516"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10824","display_name":"Image Retrieval and Classification Techniques","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10824","display_name":"Image Retrieval and Classification Techniques","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T11439","display_name":"Video Analysis and Summarization","score":0.9973999857902527,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/linear-subspace","display_name":"Linear subspace","score":0.8899878263473511},{"id":"https://openalex.org/keywords/subspace-topology","display_name":"Subspace topology","score":0.8175252676010132},{"id":"https://openalex.org/keywords/disjoint-sets","display_name":"Disjoint sets","score":0.8105218410491943},{"id":"https://openalex.org/keywords/logarithm","display_name":"Logarithm","score":0.6294350028038025},{"id":"https://openalex.org/keywords/dimension","display_name":"Dimension (graph theory)","score":0.615743100643158},{"id":"https://openalex.org/keywords/metric","display_name":"Metric (unit)","score":0.5772021412849426},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5460326075553894},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.5364162921905518},{"id":"https://openalex.org/keywords/intrinsic-dimension","display_name":"Intrinsic dimension","score":0.49421027302742004},{"id":"https://openalex.org/keywords/search-engine-indexing","display_name":"Search engine indexing","score":0.4753310978412628},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.4730830788612366},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4475928246974945},{"id":"https://openalex.org/keywords/similarity","display_name":"Similarity (geometry)","score":0.4265982508659363},{"id":"https://openalex.org/keywords/nearest-neighbor-search","display_name":"Nearest neighbor search","score":0.4157482981681824},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3723783493041992},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3473321497440338},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.33564722537994385},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.19285595417022705},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.0711762011051178},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.07046687602996826}],"concepts":[{"id":"https://openalex.org/C12362212","wikidata":"https://www.wikidata.org/wiki/Q728435","display_name":"Linear subspace","level":2,"score":0.8899878263473511},{"id":"https://openalex.org/C32834561","wikidata":"https://www.wikidata.org/wiki/Q660730","display_name":"Subspace topology","level":2,"score":0.8175252676010132},{"id":"https://openalex.org/C45340560","wikidata":"https://www.wikidata.org/wiki/Q215382","display_name":"Disjoint sets","level":2,"score":0.8105218410491943},{"id":"https://openalex.org/C39927690","wikidata":"https://www.wikidata.org/wiki/Q11197","display_name":"Logarithm","level":2,"score":0.6294350028038025},{"id":"https://openalex.org/C33676613","wikidata":"https://www.wikidata.org/wiki/Q13415176","display_name":"Dimension (graph theory)","level":2,"score":0.615743100643158},{"id":"https://openalex.org/C176217482","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Metric (unit)","level":2,"score":0.5772021412849426},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5460326075553894},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.5364162921905518},{"id":"https://openalex.org/C30732413","wikidata":"https://www.wikidata.org/wiki/Q17092636","display_name":"Intrinsic dimension","level":3,"score":0.49421027302742004},{"id":"https://openalex.org/C75165309","wikidata":"https://www.wikidata.org/wiki/Q2258979","display_name":"Search engine indexing","level":2,"score":0.4753310978412628},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.4730830788612366},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4475928246974945},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.4265982508659363},{"id":"https://openalex.org/C116738811","wikidata":"https://www.wikidata.org/wiki/Q608751","display_name":"Nearest neighbor search","level":2,"score":0.4157482981681824},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3723783493041992},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3473321497440338},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.33564722537994385},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.19285595417022705},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0711762011051178},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.07046687602996826},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C21547014","wikidata":"https://www.wikidata.org/wiki/Q1423657","display_name":"Operations management","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C111030470","wikidata":"https://www.wikidata.org/wiki/Q1430460","display_name":"Curse of dimensionality","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s10844-009-0104-9","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s10844-009-0104-9","pdf_url":null,"source":{"id":"https://openalex.org/S36033921","display_name":"Journal of Intelligent Information Systems","issn_l":"0925-9902","issn":["0925-9902","1573-7675"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Intelligent Information Systems","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":41,"referenced_works":["https://openalex.org/W147723833","https://openalex.org/W193734270","https://openalex.org/W585519466","https://openalex.org/W597783984","https://openalex.org/W1485800236","https://openalex.org/W1505969287","https://openalex.org/W1590360882","https://openalex.org/W1660390307","https://openalex.org/W1975830550","https://openalex.org/W1981247999","https://openalex.org/W2017345897","https://openalex.org/W2020842694","https://openalex.org/W2045415339","https://openalex.org/W2093191240","https://openalex.org/W2093863113","https://openalex.org/W2103504761","https://openalex.org/W2109868644","https://openalex.org/W2110254452","https://openalex.org/W2111993661","https://openalex.org/W2113304268","https://openalex.org/W2114507260","https://openalex.org/W2121111408","https://openalex.org/W2124222502","https://openalex.org/W2128017662","https://openalex.org/W2130660124","https://openalex.org/W2136595724","https://openalex.org/W2137918516","https://openalex.org/W2144679084","https://openalex.org/W2144851630","https://openalex.org/W2147682847","https://openalex.org/W2150692003","https://openalex.org/W2157092487","https://openalex.org/W2170037597","https://openalex.org/W3140474506","https://openalex.org/W4231627457","https://openalex.org/W4231807227","https://openalex.org/W4233658331","https://openalex.org/W4250499635","https://openalex.org/W6606060424","https://openalex.org/W6635102796","https://openalex.org/W7010647825"],"related_works":["https://openalex.org/W2059349845","https://openalex.org/W1949910768","https://openalex.org/W1480566255","https://openalex.org/W2254397067","https://openalex.org/W2013685631","https://openalex.org/W1610355325","https://openalex.org/W1882921205","https://openalex.org/W2154600536","https://openalex.org/W4297434536","https://openalex.org/W2571415506"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2025-10-10T00:00:00"}
