{"id":"https://openalex.org/W7130836376","doi":"https://doi.org/10.1186/s13677-026-00864-y","title":"PP-WBHSTM: privacy-preserving weighted bidirectional heterogeneous spatial task matching","display_name":"PP-WBHSTM: privacy-preserving weighted bidirectional heterogeneous spatial task matching","publication_year":2026,"publication_date":"2026-02-21","ids":{"openalex":"https://openalex.org/W7130836376","doi":"https://doi.org/10.1186/s13677-026-00864-y"},"language":"en","primary_location":{"id":"doi:10.1186/s13677-026-00864-y","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13677-026-00864-y","pdf_url":null,"source":{"id":"https://openalex.org/S2486819371","display_name":"Journal of Cloud Computing Advances Systems and Applications","issn_l":"2192-113X","issn":["2192-113X"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Cloud Computing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1186/s13677-026-00864-y","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5090356105","display_name":"Faezeh Nayyeri","orcid":null},"institutions":[{"id":"https://openalex.org/I48379061","display_name":"Shahid Beheshti University","ror":"https://ror.org/0091vmj44","country_code":"IR","type":"education","lineage":["https://openalex.org/I48379061"]}],"countries":["IR"],"is_corresponding":true,"raw_author_name":"Faezeh Nayyeri","raw_affiliation_strings":["Faculty of Mathematical Sciences, Department of Data and Computer Science, Shahid Beheshti University, Tehran, Iran"],"affiliations":[{"raw_affiliation_string":"Faculty of Mathematical Sciences, Department of Data and Computer Science, Shahid Beheshti University, Tehran, Iran","institution_ids":["https://openalex.org/I48379061"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083386060","display_name":"Ziba Eslami","orcid":null},"institutions":[{"id":"https://openalex.org/I48379061","display_name":"Shahid Beheshti University","ror":"https://ror.org/0091vmj44","country_code":"IR","type":"education","lineage":["https://openalex.org/I48379061"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Ziba Eslami","raw_affiliation_strings":["Faculty of Mathematical Sciences, Department of Data and Computer Science, Shahid Beheshti University, Tehran, Iran"],"affiliations":[{"raw_affiliation_string":"Faculty of Mathematical Sciences, Department of Data and Computer Science, Shahid Beheshti University, Tehran, Iran","institution_ids":["https://openalex.org/I48379061"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5017669855","display_name":"Nasrollah Pakniat","orcid":null},"institutions":[{"id":"https://openalex.org/I2802500176","display_name":"Iranian Research Organization for Science and Technology","ror":"https://ror.org/017zx9g19","country_code":"IR","type":"facility","lineage":["https://openalex.org/I2802500176"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Nasrollah Pakniat","raw_affiliation_strings":["Iranian Research Institute for Information Science and Technology of Iran, Research Department of Computational Linguistics, Tehran, Iran"],"affiliations":[{"raw_affiliation_string":"Iranian Research Institute for Information Science and Technology of Iran, Research Department of Computational Linguistics, Tehran, Iran","institution_ids":["https://openalex.org/I2802500176"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5090356105"],"corresponding_institution_ids":["https://openalex.org/I48379061"],"apc_list":{"value":990,"currency":"GBP","value_usd":1214},"apc_paid":{"value":990,"currency":"GBP","value_usd":1214},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.4041514,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"15","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11704","display_name":"Mobile Crowdsensing and Crowdsourcing","score":0.6848000288009644,"subfield":{"id":"https://openalex.org/subfields/1706","display_name":"Computer Science Applications"},"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/T11704","display_name":"Mobile Crowdsensing and Crowdsourcing","score":0.6848000288009644,"subfield":{"id":"https://openalex.org/subfields/1706","display_name":"Computer Science Applications"},"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/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.08569999784231186,"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/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.07930000126361847,"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/upload","display_name":"Upload","score":0.691100001335144},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.6450999975204468},{"id":"https://openalex.org/keywords/task","display_name":"Task (project management)","score":0.611299991607666},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.6057999730110168},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.5954999923706055},{"id":"https://openalex.org/keywords/spatial-analysis","display_name":"Spatial analysis","score":0.548799991607666},{"id":"https://openalex.org/keywords/outsourcing","display_name":"Outsourcing","score":0.5012999773025513},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.49160000681877136}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.83160001039505},{"id":"https://openalex.org/C71901391","wikidata":"https://www.wikidata.org/wiki/Q7126699","display_name":"Upload","level":2,"score":0.691100001335144},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6450999975204468},{"id":"https://openalex.org/C2780451532","wikidata":"https://www.wikidata.org/wiki/Q759676","display_name":"Task (project management)","level":2,"score":0.611299991607666},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.6057999730110168},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.5954999923706055},{"id":"https://openalex.org/C159620131","wikidata":"https://www.wikidata.org/wiki/Q1938983","display_name":"Spatial analysis","level":2,"score":0.548799991607666},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.5406000018119812},{"id":"https://openalex.org/C46934059","wikidata":"https://www.wikidata.org/wiki/Q61515","display_name":"Outsourcing","level":2,"score":0.5012999773025513},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.49160000681877136},{"id":"https://openalex.org/C62230096","wikidata":"https://www.wikidata.org/wiki/Q275969","display_name":"Crowdsourcing","level":2,"score":0.439300000667572},{"id":"https://openalex.org/C81669768","wikidata":"https://www.wikidata.org/wiki/Q2359161","display_name":"Precision and recall","level":2,"score":0.35850000381469727},{"id":"https://openalex.org/C12725497","wikidata":"https://www.wikidata.org/wiki/Q810247","display_name":"Baseline (sea)","level":2,"score":0.35659998655319214},{"id":"https://openalex.org/C203689450","wikidata":"https://www.wikidata.org/wiki/Q2302053","display_name":"Spatial database","level":3,"score":0.3422999978065491},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.3095000088214874},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.30559998750686646},{"id":"https://openalex.org/C136736807","wikidata":"https://www.wikidata.org/wiki/Q818943","display_name":"Range query (database)","level":5,"score":0.2782000005245209},{"id":"https://openalex.org/C123201435","wikidata":"https://www.wikidata.org/wiki/Q456632","display_name":"Information privacy","level":2,"score":0.2728999853134155},{"id":"https://openalex.org/C38369872","wikidata":"https://www.wikidata.org/wiki/Q7445009","display_name":"Security analysis","level":2,"score":0.27129998803138733},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.26840001344680786},{"id":"https://openalex.org/C175154964","wikidata":"https://www.wikidata.org/wiki/Q380077","display_name":"Task analysis","level":3,"score":0.2678999900817871},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.26660001277923584},{"id":"https://openalex.org/C158338273","wikidata":"https://www.wikidata.org/wiki/Q2154943","display_name":"Homomorphic encryption","level":3,"score":0.2624000012874603},{"id":"https://openalex.org/C186967261","wikidata":"https://www.wikidata.org/wiki/Q5082128","display_name":"Mobile device","level":2,"score":0.2581000030040741},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.2547000050544739}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1186/s13677-026-00864-y","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13677-026-00864-y","pdf_url":null,"source":{"id":"https://openalex.org/S2486819371","display_name":"Journal of Cloud Computing Advances Systems and Applications","issn_l":"2192-113X","issn":["2192-113X"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Cloud Computing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:5ed90bde75674b4994713b9ad96416cc","is_oa":true,"landing_page_url":"https://doaj.org/article/5ed90bde75674b4994713b9ad96416cc","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of Cloud Computing: Advances, Systems and Applications, Vol 15, Iss 1 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1186/s13677-026-00864-y","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13677-026-00864-y","pdf_url":null,"source":{"id":"https://openalex.org/S2486819371","display_name":"Journal of Cloud Computing Advances Systems and Applications","issn_l":"2192-113X","issn":["2192-113X"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Cloud Computing","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":35,"referenced_works":["https://openalex.org/W2041480327","https://openalex.org/W2054701320","https://openalex.org/W2059618043","https://openalex.org/W2077524676","https://openalex.org/W2089993141","https://openalex.org/W2099739670","https://openalex.org/W2259955458","https://openalex.org/W2270455647","https://openalex.org/W2467994323","https://openalex.org/W2541518390","https://openalex.org/W2584257457","https://openalex.org/W2608394281","https://openalex.org/W2740660508","https://openalex.org/W2754946945","https://openalex.org/W2771386056","https://openalex.org/W2791722231","https://openalex.org/W2794925497","https://openalex.org/W2890820969","https://openalex.org/W2897447911","https://openalex.org/W2897549154","https://openalex.org/W2910050815","https://openalex.org/W2922336629","https://openalex.org/W2970142969","https://openalex.org/W3014230463","https://openalex.org/W3023749109","https://openalex.org/W3081001174","https://openalex.org/W3171173903","https://openalex.org/W3192851990","https://openalex.org/W3197596929","https://openalex.org/W4206268962","https://openalex.org/W4389664597","https://openalex.org/W4391610292","https://openalex.org/W4399031010","https://openalex.org/W4399165843","https://openalex.org/W4407900371"],"related_works":[],"abstract_inverted_index":{"Spatial":[0,25,88],"Crowdsourcing":[1],"(SC)":[2],"systems":[3,195],"have":[4],"emerged":[5],"as":[6,96],"an":[7,126],"advanced":[8],"application":[9],"designed":[10],"to":[11,37,44,105,119,173],"match":[12],"\u201cworkers\u201d":[13],"and":[14,20,60,67,75,103,108,140,158,187,196,202,226,244],"\u201crequesters\u201d":[15],"based":[16,153],"on":[17,154],"their":[18,155],"requirements/skills":[19],"geographic":[21],"locations,":[22,159],"that":[23,129,209],"named":[24],"Task":[26,89],"Matching":[27,90],"(STM).":[28],"Moreover,":[29,233],"increasing":[30],"trend":[31],"of":[32,238],"outsourcing":[33,41],"spatio-textual":[34],"data":[35,43,142],"services":[36],"the":[38,45,117,164,175,210,216,236],"cloud,":[39],"directly":[40],"such":[42],"untrusted":[46,66,201],"cloud":[47],"may":[48],"arise":[49],"serious":[50],"privacy":[51,135],"concerns.":[52],"However,":[53],"existing":[54],"studies":[55],"rarely":[56],"achieve":[57],"both":[58,101,138],"\u201cefficiency\u201d":[59],"\u201csecurity\u201d":[61],"preservation":[62],"simultaneously,":[63],"especially":[64],"in":[65,145,200,219],"heterogeneous":[68,203],"environments":[69],"where":[70,112,137,160],"tasks":[71],"span":[72],"diverse":[73],"categories":[74],"domains.":[76],"To":[77],"address":[78],"this":[79],"issue,":[80],"we":[81,124],"propose":[82],"a":[83,97,146],"Privacy-Preserving":[84],"Weighted":[85],"Bidirectional":[86],"Heterogeneous":[87],"(PP-WBHSTM)":[91],"framework,":[92],"which":[93],"treats":[94],"SC":[95,194],"bidirectional":[98],"process,":[99],"allowing":[100],"requesters":[102],"workers":[104],"upload":[106],"information":[107],"perform":[109,120],"queries":[110,133],"equally,":[111],"previous":[113],"approaches":[114],"only":[115],"allowed":[116],"requester":[118],"queries.":[121],"In":[122],"particular,":[123],"design":[125],"encrypted":[127,144],"vector":[128],"enables":[130],"spatial":[131,139,197],"keyword":[132,198],"with":[134],"protection,":[136],"textual":[141],"are":[143,151,171],"unified":[147],"manner.":[148],"User":[149],"similarities":[150],"evaluated":[152],"weighted":[156],"skills":[157],"each":[161],"weight":[162],"reflects":[163],"user\u2019s":[165],"priority":[166],"level.":[167],"Additionally,":[168],"classification":[169],"methods":[170],"employed":[172],"reduce":[174],"search":[176,199],"complexity.":[177],"This":[178],"integrated":[179],"approach":[180,218],"ensures":[181],"high":[182],"efficiency":[183],"while":[184,228],"maintaining":[185,229],"security":[186],"privacy,":[188],"making":[189],"it":[190,234],"particularly":[191],"suitable":[192],"for":[193],"environments.":[204],"The":[205],"experimental":[206],"results":[207],"demonstrate":[208],"proposed":[211],"PP-WBHSTM":[212],"model":[213],"significantly":[214],"outperforms":[215],"baseline":[217],"all":[220],"dataset":[221],"sizes,":[222],"achieving":[223],"higher":[224],"precision":[225],"recall":[227],"efficient":[230],"computational":[231],"performance.":[232],"reduces":[235],"number":[237],"comparisons,":[239],"confirming":[240],"its":[241],"superior":[242],"scalability":[243],"efficiency.":[245]},"counts_by_year":[],"updated_date":"2026-04-02T15:55:50.835912","created_date":"2026-02-22T00:00:00"}