{"id":"https://openalex.org/W2918363463","doi":"https://doi.org/10.1109/jiot.2019.2902483","title":"Pystin: Enabling Secure LBS in Smart Cities With Privacy-Preserving Top-$k$ Spatial\u2013Textual Query","display_name":"Pystin: Enabling Secure LBS in Smart Cities With Privacy-Preserving Top-$k$ Spatial\u2013Textual Query","publication_year":2019,"publication_date":"2019-03-01","ids":{"openalex":"https://openalex.org/W2918363463","doi":"https://doi.org/10.1109/jiot.2019.2902483","mag":"2918363463"},"language":"en","primary_location":{"id":"doi:10.1109/jiot.2019.2902483","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2019.2902483","pdf_url":null,"source":{"id":"https://openalex.org/S2480266640","display_name":"IEEE Internet of Things Journal","issn_l":"2327-4662","issn":["2327-4662","2372-2541"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Internet of Things Journal","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/A5084773277","display_name":"Divya Negi","orcid":"https://orcid.org/0000-0003-1712-1573"},"institutions":[{"id":"https://openalex.org/I106938459","display_name":"University of New Brunswick","ror":"https://ror.org/05nkf0n29","country_code":"CA","type":"education","lineage":["https://openalex.org/I106938459"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Divya Negi","raw_affiliation_strings":["Faculty of Computer Science, University of New Brunswick, Fredericton, NB, Canada"],"raw_orcid":"https://orcid.org/0000-0003-1712-1573","affiliations":[{"raw_affiliation_string":"Faculty of Computer Science, University of New Brunswick, Fredericton, NB, Canada","institution_ids":["https://openalex.org/I106938459"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009118014","display_name":"Suprio Ray","orcid":"https://orcid.org/0000-0003-0681-9685"},"institutions":[{"id":"https://openalex.org/I106938459","display_name":"University of New Brunswick","ror":"https://ror.org/05nkf0n29","country_code":"CA","type":"education","lineage":["https://openalex.org/I106938459"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Suprio Ray","raw_affiliation_strings":["Faculty of Computer Science, University of New Brunswick, Fredericton, NB, Canada"],"raw_orcid":"https://orcid.org/0000-0003-0681-9685","affiliations":[{"raw_affiliation_string":"Faculty of Computer Science, University of New Brunswick, Fredericton, NB, Canada","institution_ids":["https://openalex.org/I106938459"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5070447777","display_name":"Rongxing Lu","orcid":"https://orcid.org/0000-0001-5720-0941"},"institutions":[{"id":"https://openalex.org/I106938459","display_name":"University of New Brunswick","ror":"https://ror.org/05nkf0n29","country_code":"CA","type":"education","lineage":["https://openalex.org/I106938459"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Rongxing Lu","raw_affiliation_strings":["Faculty of Computer Science, University of New Brunswick, Fredericton, NB, Canada"],"raw_orcid":"https://orcid.org/0000-0001-5720-0941","affiliations":[{"raw_affiliation_string":"Faculty of Computer Science, University of New Brunswick, Fredericton, NB, Canada","institution_ids":["https://openalex.org/I106938459"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I106938459"],"apc_list":null,"apc_paid":null,"fwci":1.9766,"has_fulltext":false,"cited_by_count":31,"citation_normalized_percentile":{"value":0.89470268,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"6","issue":"5","first_page":"7788","last_page":"7799"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9994000196456909,"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/T10237","display_name":"Cryptography and Data Security","score":0.9994000196456909,"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/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9987999796867371,"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/T11598","display_name":"Internet Traffic Analysis and Secure E-voting","score":0.9955000281333923,"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/computer-science","display_name":"Computer science","score":0.8756763339042664},{"id":"https://openalex.org/keywords/homomorphic-encryption","display_name":"Homomorphic encryption","score":0.5969885587692261},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.5342857837677002},{"id":"https://openalex.org/keywords/location-based-service","display_name":"Location-based service","score":0.5306742787361145},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.5292717218399048},{"id":"https://openalex.org/keywords/hash-function","display_name":"Hash function","score":0.5107321739196777},{"id":"https://openalex.org/keywords/search-engine-indexing","display_name":"Search engine indexing","score":0.4773017168045044},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.46984806656837463},{"id":"https://openalex.org/keywords/security-analysis","display_name":"Security analysis","score":0.4144248068332672},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.3957725763320923},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3397204875946045},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.2810478210449219},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.2553688883781433}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8756763339042664},{"id":"https://openalex.org/C158338273","wikidata":"https://www.wikidata.org/wiki/Q2154943","display_name":"Homomorphic encryption","level":3,"score":0.5969885587692261},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.5342857837677002},{"id":"https://openalex.org/C155292070","wikidata":"https://www.wikidata.org/wiki/Q1198122","display_name":"Location-based service","level":2,"score":0.5306742787361145},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.5292717218399048},{"id":"https://openalex.org/C99138194","wikidata":"https://www.wikidata.org/wiki/Q183427","display_name":"Hash function","level":2,"score":0.5107321739196777},{"id":"https://openalex.org/C75165309","wikidata":"https://www.wikidata.org/wiki/Q2258979","display_name":"Search engine indexing","level":2,"score":0.4773017168045044},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.46984806656837463},{"id":"https://openalex.org/C38369872","wikidata":"https://www.wikidata.org/wiki/Q7445009","display_name":"Security analysis","level":2,"score":0.4144248068332672},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.3957725763320923},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3397204875946045},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.2810478210449219},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.2553688883781433},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jiot.2019.2902483","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2019.2902483","pdf_url":null,"source":{"id":"https://openalex.org/S2480266640","display_name":"IEEE Internet of Things Journal","issn_l":"2327-4662","issn":["2327-4662","2372-2541"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Internet of Things Journal","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4099999964237213,"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320319980","display_name":"New Brunswick Innovation Foundation","ror":"https://ror.org/02rbgnh75"},{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W153677436","https://openalex.org/W1589843374","https://openalex.org/W1660562555","https://openalex.org/W1798609567","https://openalex.org/W1852700332","https://openalex.org/W1978394996","https://openalex.org/W2008196645","https://openalex.org/W2054701320","https://openalex.org/W2056773559","https://openalex.org/W2073593215","https://openalex.org/W2074356711","https://openalex.org/W2087173276","https://openalex.org/W2093390569","https://openalex.org/W2102611836","https://openalex.org/W2108590723","https://openalex.org/W2115016714","https://openalex.org/W2140048308","https://openalex.org/W2145426052","https://openalex.org/W2154592552","https://openalex.org/W2163511921","https://openalex.org/W2165612380","https://openalex.org/W2167275936","https://openalex.org/W2523401173","https://openalex.org/W2622005089","https://openalex.org/W2901621006","https://openalex.org/W4206765718"],"related_works":["https://openalex.org/W2539930818","https://openalex.org/W4406779505","https://openalex.org/W4403623784","https://openalex.org/W4393118461","https://openalex.org/W4390664647","https://openalex.org/W3012147850","https://openalex.org/W4313300189","https://openalex.org/W2949835517","https://openalex.org/W4407007798","https://openalex.org/W2601739120"],"abstract_inverted_index":{"The":[0],"convergence":[1],"of":[2,18,97,108,162],"technologies":[3,11],"like":[4],"Cloud":[5,76],"computing,":[6],"mobile,":[7],"and":[8,27,77,101,105,155],"smart":[9,23,83],"phone":[10],"has":[12],"led":[13],"to":[14,35,38,47,128],"the":[15,39,48,95,106,131,139,158],"rapid":[16],"development":[17],"location-based":[19],"services":[20],"(LBS)":[21],"in":[22,82],"cities.":[24,84],"For":[25],"flexibility":[26],"cost":[28],"savings,":[29],"there":[30],"is":[31,72,92,124,143],"a":[32,44,56,87,114,120,145],"recent":[33],"trend":[34],"migrate":[36],"LBS":[37,81],"Cloud,":[40],"however":[41],"it":[42],"poses":[43],"serious":[45],"threat":[46],"user":[49],"privacy.":[50],"In":[51,85,118],"this":[52],"paper,":[53],"we":[54],"present":[55],"new":[57],"privacy":[58,107],"preserving":[59],"top-k":[60],"spatio-textual":[61,68,122],"keyword":[62],"(TkSK)":[63],"query":[64,88,132,148],"scheme,":[65],"called":[66],"privacy-preserving":[67,146],"index":[69],"(Pystin),":[70],"which":[71],"performed":[73],"over":[74],"outsourced":[75],"can":[78],"enable":[79],"secure":[80],"Pystin,":[86],"user's":[89],"accurate":[90],"location":[91],"protected":[93],"by":[94,113],"combination":[96],"Boneh-Goh-Nissim":[98],"homomorphic":[99],"encryption":[100],"hash":[102,116],"bucket":[103],"techniques,":[104],"textual":[109],"information":[110],"are":[111,153],"persevered":[112],"one-way":[115],"function.":[117],"addition,":[119],"quad-tree-based":[121],"indexing":[123],"integrated":[125],"into":[126],"Pystin":[127,141,165],"further":[129],"reduce":[130],"latency.":[133],"Detailed":[134],"security":[135],"analyzes":[136],"show":[137],"that":[138],"proposed":[140,164],"scheme":[142],"indeed":[144],"TkSK":[147],"scheme.":[149,166],"Furthermore,":[150],"extensive":[151],"experiments":[152],"conducted,":[154],"results":[156],"confirm":[157],"scalability,":[159],"efficiency":[160],"properties":[161],"our":[163]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
