{"id":"https://openalex.org/W1990990569","doi":"https://doi.org/10.1145/2557977.2558026","title":"B <sup>dHCO</sup> -tree","display_name":"B <sup>dHCO</sup> -tree","publication_year":2014,"publication_date":"2014-01-09","ids":{"openalex":"https://openalex.org/W1990990569","doi":"https://doi.org/10.1145/2557977.2558026","mag":"1990990569"},"language":"en","primary_location":{"id":"doi:10.1145/2557977.2558026","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2557977.2558026","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 8th International Conference on Ubiquitous Information Management and Communication","raw_type":"proceedings-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/A5029072011","display_name":"Tran Khanh Dang","orcid":"https://orcid.org/0000-0002-7282-3589"},"institutions":[{"id":"https://openalex.org/I47265099","display_name":"Ho Chi Minh City University of Technology","ror":"https://ror.org/04qva2324","country_code":"VN","type":"education","lineage":["https://openalex.org/I123565023","https://openalex.org/I47265099"]}],"countries":["VN"],"is_corresponding":true,"raw_author_name":"Tran Khanh Dang","raw_affiliation_strings":["HCMC University of Technology, Ho Chi Minh City, Vietnam"],"affiliations":[{"raw_affiliation_string":"HCMC University of Technology, Ho Chi Minh City, Vietnam","institution_ids":["https://openalex.org/I47265099"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057439936","display_name":"Dinh Long Vu","orcid":null},"institutions":[{"id":"https://openalex.org/I120089902","display_name":"Ho Chi Minh City University of Transport","ror":"https://ror.org/011c0vt04","country_code":"VN","type":"education","lineage":["https://openalex.org/I120089902"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Dinh Long Vu","raw_affiliation_strings":["University of Transport, Ho Chi Minh City, Vietnam"],"affiliations":[{"raw_affiliation_string":"University of Transport, Ho Chi Minh City, Vietnam","institution_ids":["https://openalex.org/I120089902"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016344715","display_name":"Van Nghiem Nguyen","orcid":null},"institutions":[{"id":"https://openalex.org/I4210134642","display_name":"Lac Hong University","ror":"https://ror.org/03nypmk85","country_code":"VN","type":"education","lineage":["https://openalex.org/I4210134642"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Van Nghiem Nguyen","raw_affiliation_strings":["Vocational College, Dong Nai, Vietnam"],"affiliations":[{"raw_affiliation_string":"Vocational College, Dong Nai, Vietnam","institution_ids":["https://openalex.org/I4210134642"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5029072011"],"corresponding_institution_ids":["https://openalex.org/I47265099"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0622612,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9998999834060669,"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/T11106","display_name":"Data Management and Algorithms","score":0.9986000061035156,"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/T10237","display_name":"Cryptography and Data Security","score":0.9911999702453613,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/obfuscation","display_name":"Obfuscation","score":0.8962627649307251},{"id":"https://openalex.org/keywords/cloaking","display_name":"Cloaking","score":0.8317882418632507},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8219281435012817},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.6495857834815979},{"id":"https://openalex.org/keywords/hilbert-curve","display_name":"Hilbert curve","score":0.6079818606376648},{"id":"https://openalex.org/keywords/anonymity","display_name":"Anonymity","score":0.4773438274860382},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.4666127562522888},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.45647814869880676},{"id":"https://openalex.org/keywords/index","display_name":"Index (typography)","score":0.4417569637298584},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.3837454915046692},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3044484257698059},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.14080125093460083},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1264575719833374}],"concepts":[{"id":"https://openalex.org/C40305131","wikidata":"https://www.wikidata.org/wiki/Q2616305","display_name":"Obfuscation","level":2,"score":0.8962627649307251},{"id":"https://openalex.org/C62973154","wikidata":"https://www.wikidata.org/wiki/Q868018","display_name":"Cloaking","level":3,"score":0.8317882418632507},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8219281435012817},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.6495857834815979},{"id":"https://openalex.org/C2781142347","wikidata":"https://www.wikidata.org/wiki/Q1366592","display_name":"Hilbert curve","level":2,"score":0.6079818606376648},{"id":"https://openalex.org/C178005623","wikidata":"https://www.wikidata.org/wiki/Q308859","display_name":"Anonymity","level":2,"score":0.4773438274860382},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.4666127562522888},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.45647814869880676},{"id":"https://openalex.org/C2777382242","wikidata":"https://www.wikidata.org/wiki/Q6017816","display_name":"Index (typography)","level":2,"score":0.4417569637298584},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.3837454915046692},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3044484257698059},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.14080125093460083},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1264575719833374},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C110367647","wikidata":"https://www.wikidata.org/wiki/Q497166","display_name":"Metamaterial","level":2,"score":0.0},{"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/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2557977.2558026","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2557977.2558026","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 8th International Conference on Ubiquitous Information Management and Communication","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.5600000023841858,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W59713176","https://openalex.org/W314363935","https://openalex.org/W1500748839","https://openalex.org/W1518292554","https://openalex.org/W1566380962","https://openalex.org/W1746665946","https://openalex.org/W1979103214","https://openalex.org/W1982590063","https://openalex.org/W2026153312","https://openalex.org/W2071358357","https://openalex.org/W2086863233","https://openalex.org/W2101024939","https://openalex.org/W2108179552","https://openalex.org/W2108900639","https://openalex.org/W2133459016","https://openalex.org/W2139211263","https://openalex.org/W2165569992"],"related_works":["https://openalex.org/W2051529116","https://openalex.org/W2951033480","https://openalex.org/W2953300811","https://openalex.org/W2095170444","https://openalex.org/W2783338065","https://openalex.org/W1988993244","https://openalex.org/W2063889382","https://openalex.org/W2474905295","https://openalex.org/W1975076798","https://openalex.org/W1557015812"],"abstract_inverted_index":{"Together":[0],"with":[1],"the":[2,9,41,61,67,108,115],"rapid":[3],"development":[4],"of":[5,11,65,110],"location-based":[6],"services":[7],"(LBS),":[8],"problem":[10],"privacy-preserving":[12],"has":[13],"gained":[14],"much":[15],"attention.":[16],"Many":[17],"techniques":[18],"aiming":[19],"at":[20],"protecting":[21],"user's":[22],"privacy":[23,37,116],"have":[24,75],"been":[25],"introduced":[26],"such":[27,87],"as":[28,45],"obfuscation-based":[29,104],"technique,":[30],"k-anonymity.":[31],"Although":[32],"existing":[33],"solutions":[34],"integrate":[35],"location":[36],"protection":[38],"algorithms":[39],"into":[40,124],"indexed":[42],"spatio-temporal":[43,125],"data":[44,126],"Bob-tree":[46],"and":[47,56,78,82,103,113],"Bob+-tree,":[48],"they":[49],"do":[50],"not":[51],"conform":[52],"to":[53,106],"moving":[54],"objects":[55],"naturally":[57],"frequent":[58],"updates.":[59],"On":[60],"other":[62],"hand,":[63],"because":[64],"using":[66],"static":[68],"order":[69],"Hilbert":[70,100],"curve,":[71],"these":[72],"indices":[73],"usually":[74],"large":[76],"size,":[77],"so":[79,129],"decreasing":[80],"query":[81],"update":[83],"performance.":[84],"To":[85],"overcome":[86],"disadvantages,":[88],"in":[89],"this":[90],"paper,":[91],"we":[92],"propose":[93],"a":[94],"BdHCO-tree":[95],"that":[96,130],"combines":[97],"BdH-tree":[98],"index,":[99],"Cloaking":[101],"algorithm":[102],"technique":[105],"enhance":[107],"performance":[109],"basic":[111],"operations":[112],"increase":[114],"protection.":[117],"Besides,":[118],"our":[119],"solution":[120],"is":[121],"also":[122],"integrated":[123],"index":[127],"structure":[128],"it":[131],"can":[132],"be":[133],"used":[134],"for":[135],"commercial":[136],"Database":[137],"Management":[138],"Systems":[139],"transparently.":[140]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
