{"id":"https://openalex.org/W2104550444","doi":"https://doi.org/10.14778/1453856.1453967","title":"Efficient skyline querying with variable user preferences on nominal attributes","display_name":"Efficient skyline querying with variable user preferences on nominal attributes","publication_year":2008,"publication_date":"2008-08-01","ids":{"openalex":"https://openalex.org/W2104550444","doi":"https://doi.org/10.14778/1453856.1453967","mag":"2104550444"},"language":"en","primary_location":{"id":"doi:10.14778/1453856.1453967","is_oa":false,"landing_page_url":"https://doi.org/10.14778/1453856.1453967","pdf_url":null,"source":{"id":"https://openalex.org/S4210226185","display_name":"Proceedings of the VLDB Endowment","issn_l":"2150-8097","issn":["2150-8097"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the VLDB Endowment","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/A5049858061","display_name":"Raymond Chi-Wing Wong","orcid":"https://orcid.org/0000-0001-7045-6503"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":true,"raw_author_name":"Raymond Chi-Wing Wong","raw_affiliation_strings":["The Hong Kong University of Science and Technology"],"affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110164824","display_name":"Ada Wai-Chee Fu","orcid":null},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Ada Wai-Chee Fu","raw_affiliation_strings":["The Chinese University of Hong Kong"],"affiliations":[{"raw_affiliation_string":"The Chinese University of Hong Kong","institution_ids":["https://openalex.org/I177725633"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062247330","display_name":"Jian Pei","orcid":"https://orcid.org/0000-0002-2200-8711"},"institutions":[{"id":"https://openalex.org/I18014758","display_name":"Simon Fraser University","ror":"https://ror.org/0213rcc28","country_code":"CA","type":"education","lineage":["https://openalex.org/I18014758"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Jian Pei","raw_affiliation_strings":["Simon Fraser University"],"affiliations":[{"raw_affiliation_string":"Simon Fraser University","institution_ids":["https://openalex.org/I18014758"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066345842","display_name":"Yip Sing Ho","orcid":null},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Yip Sing Ho","raw_affiliation_strings":["The Chinese University of Hong Kong"],"affiliations":[{"raw_affiliation_string":"The Chinese University of Hong Kong","institution_ids":["https://openalex.org/I177725633"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074005931","display_name":"Tai Wong","orcid":null},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Tai Wong","raw_affiliation_strings":["The Chinese University of Hong Kong"],"affiliations":[{"raw_affiliation_string":"The Chinese University of Hong Kong","institution_ids":["https://openalex.org/I177725633"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5020985581","display_name":"Yubao Liu","orcid":"https://orcid.org/0000-0002-5027-227X"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yubao Liu","raw_affiliation_strings":["Sun Yat-Sen University"],"affiliations":[{"raw_affiliation_string":"Sun Yat-Sen University","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5049858061"],"corresponding_institution_ids":["https://openalex.org/I200769079"],"apc_list":null,"apc_paid":null,"fwci":6.837,"has_fulltext":false,"cited_by_count":64,"citation_normalized_percentile":{"value":0.97270358,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"1","issue":"1","first_page":"1032","last_page":"1043"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9998999834060669,"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/T10757","display_name":"Geographic Information Systems Studies","score":0.9929999709129333,"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/T13282","display_name":"Automated Road and Building Extraction","score":0.9803000092506409,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/skyline","display_name":"Skyline","score":0.9470754861831665},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7721947431564331},{"id":"https://openalex.org/keywords/preference","display_name":"Preference","score":0.7200555801391602},{"id":"https://openalex.org/keywords/order","display_name":"Order (exchange)","score":0.5322826504707336},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.5176542401313782},{"id":"https://openalex.org/keywords/variable","display_name":"Variable (mathematics)","score":0.510714054107666},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.4151516854763031},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.14488562941551208},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.06738129258155823}],"concepts":[{"id":"https://openalex.org/C2780757406","wikidata":"https://www.wikidata.org/wiki/Q465837","display_name":"Skyline","level":2,"score":0.9470754861831665},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7721947431564331},{"id":"https://openalex.org/C2781249084","wikidata":"https://www.wikidata.org/wiki/Q908656","display_name":"Preference","level":2,"score":0.7200555801391602},{"id":"https://openalex.org/C182306322","wikidata":"https://www.wikidata.org/wiki/Q1779371","display_name":"Order (exchange)","level":2,"score":0.5322826504707336},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.5176542401313782},{"id":"https://openalex.org/C182365436","wikidata":"https://www.wikidata.org/wiki/Q50701","display_name":"Variable (mathematics)","level":2,"score":0.510714054107666},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.4151516854763031},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.14488562941551208},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.06738129258155823},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.14778/1453856.1453967","is_oa":false,"landing_page_url":"https://doi.org/10.14778/1453856.1453967","pdf_url":null,"source":{"id":"https://openalex.org/S4210226185","display_name":"Proceedings of the VLDB Endowment","issn_l":"2150-8097","issn":["2150-8097"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the VLDB Endowment","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.140.7153","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.140.7153","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.vldb.org/pvldb/1/1453967.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.141.2129","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.141.2129","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cse.cuhk.edu.hk/~adafu/Pub/VLDB08skyline.pdf","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.176.5199","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.176.5199","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cse.ust.hk/%7Eraywong/paper/vldb08-freesky.pdf","raw_type":"text"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-8923","is_oa":false,"landing_page_url":"http://repository.hkust.edu.hk/ir/Record/1783.1-8923","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322942","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W1508299804","https://openalex.org/W1517348552","https://openalex.org/W1580944449","https://openalex.org/W1589055293","https://openalex.org/W1992963068","https://openalex.org/W1999126028","https://openalex.org/W2033933009","https://openalex.org/W2040584916","https://openalex.org/W2049864887","https://openalex.org/W2057194202","https://openalex.org/W2076713766","https://openalex.org/W2096547754","https://openalex.org/W2099564027","https://openalex.org/W2101390300","https://openalex.org/W2110488294","https://openalex.org/W2112212668","https://openalex.org/W2116396741","https://openalex.org/W2121371326","https://openalex.org/W2121612399","https://openalex.org/W2124476970","https://openalex.org/W2127782281","https://openalex.org/W2130696419","https://openalex.org/W2130795633","https://openalex.org/W2134644026","https://openalex.org/W2150693557","https://openalex.org/W2159693728","https://openalex.org/W2170188482","https://openalex.org/W2171717425","https://openalex.org/W3136083256"],"related_works":["https://openalex.org/W2331788134","https://openalex.org/W2727889391","https://openalex.org/W2896609224","https://openalex.org/W2065676484","https://openalex.org/W2331653917","https://openalex.org/W4311154768","https://openalex.org/W3009147976","https://openalex.org/W1580212682","https://openalex.org/W2789491300","https://openalex.org/W2358841807"],"abstract_inverted_index":{"Current":[0],"skyline":[1],"evaluation":[2],"techniques":[3],"assume":[4],"a":[5,35,60,69],"fixed":[6],"ordering":[7],"on":[8,14],"the":[9,54,73,86,103],"attributes.":[10],"However,":[11,53],"dynamic":[12],"preferences":[13,45],"nominal":[15],"attributes":[16],"are":[17,63],"more":[18],"realistic":[19],"in":[20],"known":[21],"applications.":[22],"In":[23],"order":[24],"to":[25,41,101],"generate":[26],"online":[27],"response":[28],"for":[29],"any":[30],"such":[31],"preference":[32,91],"issued":[33],"by":[34],"user,":[36],"one":[37],"obvious":[38],"solution":[39],"is":[40],"enumerate":[42],"all":[43,48],"possible":[44,90],"and":[46,56],"materialize":[47],"results":[49,80],"of":[50,59,88,105],"these":[51,83],"preferences.":[52],"pre-processing":[55],"storage":[57],"requirements":[58],"full":[61],"materialization":[62],"typically":[64],"prohibitive.":[65],"Instead,":[66],"we":[67],"propose":[68],"semi-materialization":[70],"method":[71],"called":[72],"IPO-tree":[74],"Search":[75],"which":[76],"stores":[77],"partial":[78,84],"useful":[79],"only.":[81],"With":[82],"results,":[85],"result":[87],"each":[89],"can":[92],"be":[93],"returned":[94],"efficiently.":[95],"We":[96],"have":[97],"also":[98],"conducted":[99],"experiments":[100],"show":[102],"efficiency":[104],"our":[106],"proposed":[107],"algorithm.":[108]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":12},{"year":2012,"cited_by_count":7}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}