{"id":"https://openalex.org/W2169905621","doi":"https://doi.org/10.1109/percom.2011.5767584","title":"Position sharing for location privacy in non-trusted systems","display_name":"Position sharing for location privacy in non-trusted systems","publication_year":2011,"publication_date":"2011-03-01","ids":{"openalex":"https://openalex.org/W2169905621","doi":"https://doi.org/10.1109/percom.2011.5767584","mag":"2169905621"},"language":"en","primary_location":{"id":"doi:10.1109/percom.2011.5767584","is_oa":false,"landing_page_url":"https://doi.org/10.1109/percom.2011.5767584","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Conference on Pervasive Computing and Communications (PerCom)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5047414574","display_name":"Frank D\u00fcrr","orcid":"https://orcid.org/0000-0002-3470-7712"},"institutions":[{"id":"https://openalex.org/I100066346","display_name":"University of Stuttgart","ror":"https://ror.org/04vnq7t77","country_code":"DE","type":"education","lineage":["https://openalex.org/I100066346"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Frank Durr","raw_affiliation_strings":["Institute of Parallel & Distributed Systems, Universit\u00e4t Stuttgart, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Parallel & Distributed Systems, Universit\u00e4t Stuttgart, Germany","institution_ids":["https://openalex.org/I100066346"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080694384","display_name":"Pavel Skvortsov","orcid":null},"institutions":[{"id":"https://openalex.org/I100066346","display_name":"University of Stuttgart","ror":"https://ror.org/04vnq7t77","country_code":"DE","type":"education","lineage":["https://openalex.org/I100066346"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Pavel Skvortsov","raw_affiliation_strings":["Institute of Parallel & Distributed Systems, Universit\u00e4t Stuttgart, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Parallel & Distributed Systems, Universit\u00e4t Stuttgart, Germany","institution_ids":["https://openalex.org/I100066346"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5001242671","display_name":"Kurt Rothermel","orcid":"https://orcid.org/0000-0001-8986-8241"},"institutions":[{"id":"https://openalex.org/I100066346","display_name":"University of Stuttgart","ror":"https://ror.org/04vnq7t77","country_code":"DE","type":"education","lineage":["https://openalex.org/I100066346"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Kurt Rothermel","raw_affiliation_strings":["Institute of Parallel & Distributed Systems, Universit\u00e4t Stuttgart, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Parallel & Distributed Systems, Universit\u00e4t Stuttgart, Germany","institution_ids":["https://openalex.org/I100066346"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I100066346"],"apc_list":null,"apc_paid":null,"fwci":3.7769,"has_fulltext":false,"cited_by_count":46,"citation_normalized_percentile":{"value":0.94645715,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":1.0,"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":1.0,"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/T10237","display_name":"Cryptography and Data Security","score":0.9965999722480774,"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/T11704","display_name":"Mobile Crowdsensing and Crowdsourcing","score":0.9914000034332275,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8071430325508118},{"id":"https://openalex.org/keywords/location-based-service","display_name":"Location-based service","score":0.7922613620758057},{"id":"https://openalex.org/keywords/obfuscation","display_name":"Obfuscation","score":0.7165964245796204},{"id":"https://openalex.org/keywords/service-provider","display_name":"Service provider","score":0.651533305644989},{"id":"https://openalex.org/keywords/server","display_name":"Server","score":0.6462951898574829},{"id":"https://openalex.org/keywords/position","display_name":"Position (finance)","score":0.599514901638031},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.5600651502609253},{"id":"https://openalex.org/keywords/service","display_name":"Service (business)","score":0.5290994644165039},{"id":"https://openalex.org/keywords/anonymity","display_name":"Anonymity","score":0.5144327282905579},{"id":"https://openalex.org/keywords/trusted-third-party","display_name":"Trusted third party","score":0.48448440432548523},{"id":"https://openalex.org/keywords/information-privacy","display_name":"Information privacy","score":0.4175010919570923},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.26317477226257324}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8071430325508118},{"id":"https://openalex.org/C155292070","wikidata":"https://www.wikidata.org/wiki/Q1198122","display_name":"Location-based service","level":2,"score":0.7922613620758057},{"id":"https://openalex.org/C40305131","wikidata":"https://www.wikidata.org/wiki/Q2616305","display_name":"Obfuscation","level":2,"score":0.7165964245796204},{"id":"https://openalex.org/C116537","wikidata":"https://www.wikidata.org/wiki/Q2169973","display_name":"Service provider","level":3,"score":0.651533305644989},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.6462951898574829},{"id":"https://openalex.org/C198082294","wikidata":"https://www.wikidata.org/wiki/Q3399648","display_name":"Position (finance)","level":2,"score":0.599514901638031},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.5600651502609253},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.5290994644165039},{"id":"https://openalex.org/C178005623","wikidata":"https://www.wikidata.org/wiki/Q308859","display_name":"Anonymity","level":2,"score":0.5144327282905579},{"id":"https://openalex.org/C139089976","wikidata":"https://www.wikidata.org/wiki/Q2142273","display_name":"Trusted third party","level":2,"score":0.48448440432548523},{"id":"https://openalex.org/C123201435","wikidata":"https://www.wikidata.org/wiki/Q456632","display_name":"Information privacy","level":2,"score":0.4175010919570923},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.26317477226257324},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","level":1,"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":2,"locations":[{"id":"doi:10.1109/percom.2011.5767584","is_oa":false,"landing_page_url":"https://doi.org/10.1109/percom.2011.5767584","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Conference on Pervasive Computing and Communications (PerCom)","raw_type":"proceedings-article"},{"id":"pmh:oai:informatik.uni-stuttgart.de:INPROC-2011-11","is_oa":false,"landing_page_url":"http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2011-11&amp;engl=1","pdf_url":null,"source":{"id":"https://openalex.org/S4306401306","display_name":"Fachbereich Informatik (University of Stuttgart)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I100066346","host_organization_name":"University of Stuttgart","host_organization_lineage":["https://openalex.org/I100066346"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"\\n In: Proceedings of the 9th IEEE International Conference on\\n Pervasive Computing and Communications (PerCom 2011), pp. 189-196\\n","raw_type":"Text"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/17","display_name":"Partnerships for the goals","score":0.4300000071525574}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":22,"referenced_works":["https://openalex.org/W1536017417","https://openalex.org/W1689932539","https://openalex.org/W1792629798","https://openalex.org/W1966406552","https://openalex.org/W2031418633","https://openalex.org/W2069388449","https://openalex.org/W2101024939","https://openalex.org/W2108509830","https://openalex.org/W2118880801","https://openalex.org/W2128800833","https://openalex.org/W2130151420","https://openalex.org/W2134167315","https://openalex.org/W2134479759","https://openalex.org/W2139211263","https://openalex.org/W2170166043","https://openalex.org/W2751555667","https://openalex.org/W2752779325","https://openalex.org/W3151416412","https://openalex.org/W4213300538","https://openalex.org/W6632222261","https://openalex.org/W6638073065","https://openalex.org/W6657904033"],"related_works":["https://openalex.org/W2757006211","https://openalex.org/W4311991908","https://openalex.org/W1446677704","https://openalex.org/W3022375131","https://openalex.org/W2026857761","https://openalex.org/W4255627235","https://openalex.org/W2981007352","https://openalex.org/W4309651438","https://openalex.org/W4246681749","https://openalex.org/W1915933348"],"abstract_inverted_index":{"Many":[0,68],"novel":[1,113],"location-based":[2],"services":[3,21,63],"(LBS)":[4],"such":[5],"as":[6],"a":[7,73,112,135,162],"friend":[8],"finder":[9],"service":[10,101],"require":[11],"knowledge":[12],"about":[13],"the":[14,41,46,57,80,86,116,142,196],"positions":[15,47],"of":[16,48,59,91,119,144,148,156,169,179,191,199],"mobile":[17,49],"users.":[18],"Usually,":[19],"location":[20,62,83,100,154,184],"are":[22,64,93,103],"used":[23],"to":[24,40,107,194],"manage":[25],"these":[26,108],"positions,":[27],"and":[28,44,61,85,99],"for":[29,71,115,141],"providing":[30],"basic":[31],"functionality":[32],"like":[33],"spatial":[34,38],"range":[35],"queries":[36],"or":[37],"events":[39],"LBS.":[42,201],"Managing":[43],"using":[45],"users":[50],"raises":[51],"privacy":[52,75],"issues,":[53],"in":[54,79,123,131],"particular,":[55],"if":[56,96],"providers":[58,102],"LBS":[60,98],"only":[65,166],"partially":[66,124],"trusted.":[67],"different":[69,157,200],"approaches":[70],"preserving":[72],"user's":[74],"have":[76],"been":[77],"proposed":[78],"literature,":[81],"e.g.":[82],"obfuscation":[84],"k-anonymity":[87],"concept.":[88],"However,":[89],"most":[90],"them":[92],"not":[94],"suitable":[95],"both":[97],"non-trusted.":[104],"In":[105],"contrast":[106],"approaches,":[109],"we":[110,173],"present":[111],"approach":[114],"secure":[117],"management":[118],"private":[120],"position":[121,136,145,177],"information":[122,146,168,190],"trusted":[125],"system":[126],"environments.":[127],"The":[128],"main":[129],"contribution":[130],"this":[132,160],"paper":[133],"is":[134],"sharing":[137],"concept":[138],"which":[139],"allows":[140],"distribution":[143],"(shares)":[147],"strictly":[149],"limited":[150,170],"accuracy":[151,197],"onto":[152],"several":[153],"servers":[155,185],"providers.":[158],"With":[159],"approach,":[161],"compromised":[163],"server":[164],"will":[165,174],"reveal":[167],"accuracy.":[171],"Moreover,":[172],"show":[175],"how":[176],"shares":[178],"coarse":[180],"granularity":[181],"from":[182],"multiple":[183],"can":[186],"be":[187],"fused":[188],"into":[189],"higher":[192],"precision":[193],"satisfy":[195],"requirements":[198]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":7},{"year":2017,"cited_by_count":8},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":8},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":5}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}
