{"id":"https://openalex.org/W2973204732","doi":"https://doi.org/10.3390/s19183886","title":"Heuristic Approaches for Enhancing the Privacy of the Leader in IoT Networks","display_name":"Heuristic Approaches for Enhancing the Privacy of the Leader in IoT Networks","publication_year":2019,"publication_date":"2019-09-09","ids":{"openalex":"https://openalex.org/W2973204732","doi":"https://doi.org/10.3390/s19183886","mag":"2973204732"},"language":"en","primary_location":{"id":"doi:10.3390/s19183886","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s19183886","pdf_url":"https://www.mdpi.com/1424-8220/19/18/3886/pdf?version=1568201055","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/19/18/3886/pdf?version=1568201055","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100332383","display_name":"Jie Ji","orcid":"https://orcid.org/0000-0002-8864-2352"},"institutions":[{"id":"https://openalex.org/I50760025","display_name":"Hangzhou Dianzi University","ror":"https://ror.org/0576gt767","country_code":"CN","type":"education","lineage":["https://openalex.org/I50760025"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jie Ji","raw_affiliation_strings":["School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China"],"affiliations":[{"raw_affiliation_string":"School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China","institution_ids":["https://openalex.org/I50760025"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082195875","display_name":"Guohua Wu","orcid":"https://orcid.org/0000-0001-5089-4354"},"institutions":[{"id":"https://openalex.org/I50760025","display_name":"Hangzhou Dianzi University","ror":"https://ror.org/0576gt767","country_code":"CN","type":"education","lineage":["https://openalex.org/I50760025"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guohua Wu","raw_affiliation_strings":["School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China"],"affiliations":[{"raw_affiliation_string":"School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China","institution_ids":["https://openalex.org/I50760025"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010424961","display_name":"Jinguo Shuai","orcid":null},"institutions":[{"id":"https://openalex.org/I50760025","display_name":"Hangzhou Dianzi University","ror":"https://ror.org/0576gt767","country_code":"CN","type":"education","lineage":["https://openalex.org/I50760025"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jinguo Shuai","raw_affiliation_strings":["School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China"],"affiliations":[{"raw_affiliation_string":"School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China","institution_ids":["https://openalex.org/I50760025"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100390176","display_name":"Zhen Zhang","orcid":"https://orcid.org/0000-0002-6615-629X"},"institutions":[{"id":"https://openalex.org/I50760025","display_name":"Hangzhou Dianzi University","ror":"https://ror.org/0576gt767","country_code":"CN","type":"education","lineage":["https://openalex.org/I50760025"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhen Zhang","raw_affiliation_strings":["School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China"],"affiliations":[{"raw_affiliation_string":"School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China","institution_ids":["https://openalex.org/I50760025"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100422319","display_name":"Zhen Wang","orcid":"https://orcid.org/0000-0002-3399-5281"},"institutions":[{"id":"https://openalex.org/I50760025","display_name":"Hangzhou Dianzi University","ror":"https://ror.org/0576gt767","country_code":"CN","type":"education","lineage":["https://openalex.org/I50760025"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhen Wang","raw_affiliation_strings":["School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China"],"affiliations":[{"raw_affiliation_string":"School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China","institution_ids":["https://openalex.org/I50760025"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100614965","display_name":"Yizhi Ren","orcid":"https://orcid.org/0000-0002-1421-9164"},"institutions":[{"id":"https://openalex.org/I50760025","display_name":"Hangzhou Dianzi University","ror":"https://ror.org/0576gt767","country_code":"CN","type":"education","lineage":["https://openalex.org/I50760025"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yizhi Ren","raw_affiliation_strings":["School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China"],"affiliations":[{"raw_affiliation_string":"School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, Zhejiang, China","institution_ids":["https://openalex.org/I50760025"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5100614965"],"corresponding_institution_ids":["https://openalex.org/I50760025"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":0.1857,"has_fulltext":true,"cited_by_count":4,"citation_normalized_percentile":{"value":0.56187656,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"19","issue":"18","first_page":"3886","last_page":"3886"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T10246","display_name":"Mobile Ad Hoc Networks","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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":0.9977999925613403,"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":0.705015242099762},{"id":"https://openalex.org/keywords/closeness","display_name":"Closeness","score":0.6752465963363647},{"id":"https://openalex.org/keywords/heuristic","display_name":"Heuristic","score":0.6303527355194092},{"id":"https://openalex.org/keywords/greedy-algorithm","display_name":"Greedy algorithm","score":0.5684047937393188},{"id":"https://openalex.org/keywords/centrality","display_name":"Centrality","score":0.5593318939208984},{"id":"https://openalex.org/keywords/internet-of-things","display_name":"Internet of Things","score":0.5414670705795288},{"id":"https://openalex.org/keywords/pruning","display_name":"Pruning","score":0.4561852514743805},{"id":"https://openalex.org/keywords/rank","display_name":"Rank (graph theory)","score":0.413017213344574},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3840786814689636},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.3566932678222656},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.24242258071899414},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.22625964879989624},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.20947206020355225},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.20026320219039917}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.705015242099762},{"id":"https://openalex.org/C2779545769","wikidata":"https://www.wikidata.org/wiki/Q5135364","display_name":"Closeness","level":2,"score":0.6752465963363647},{"id":"https://openalex.org/C173801870","wikidata":"https://www.wikidata.org/wiki/Q201413","display_name":"Heuristic","level":2,"score":0.6303527355194092},{"id":"https://openalex.org/C51823790","wikidata":"https://www.wikidata.org/wiki/Q504353","display_name":"Greedy algorithm","level":2,"score":0.5684047937393188},{"id":"https://openalex.org/C53811970","wikidata":"https://www.wikidata.org/wiki/Q5062194","display_name":"Centrality","level":2,"score":0.5593318939208984},{"id":"https://openalex.org/C81860439","wikidata":"https://www.wikidata.org/wiki/Q251212","display_name":"Internet of Things","level":2,"score":0.5414670705795288},{"id":"https://openalex.org/C108010975","wikidata":"https://www.wikidata.org/wiki/Q500094","display_name":"Pruning","level":2,"score":0.4561852514743805},{"id":"https://openalex.org/C164226766","wikidata":"https://www.wikidata.org/wiki/Q7293202","display_name":"Rank (graph theory)","level":2,"score":0.413017213344574},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3840786814689636},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3566932678222656},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.24242258071899414},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.22625964879989624},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.20947206020355225},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.20026320219039917},{"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/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.3390/s19183886","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s19183886","pdf_url":"https://www.mdpi.com/1424-8220/19/18/3886/pdf?version=1568201055","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:afe686ea227b43dfa61412c413d6764f","is_oa":true,"landing_page_url":"https://doaj.org/article/afe686ea227b43dfa61412c413d6764f","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-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 19, Iss 18, p 3886 (2019)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/19/18/3886/","is_oa":true,"landing_page_url":"http://dx.doi.org/10.3390/s19183886","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:6767009","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/6767009","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s19183886","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s19183886","pdf_url":"https://www.mdpi.com/1424-8220/19/18/3886/pdf?version=1568201055","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.5799999833106995,"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16"}],"awards":[{"id":"https://openalex.org/G2805520338","display_name":null,"funder_award_id":"LY18F030007","funder_id":"https://openalex.org/F4320338464","funder_display_name":"Natural Science Foundation of Zhejiang Province"},{"id":"https://openalex.org/G3085993365","display_name":null,"funder_award_id":"(Grant No.","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3317480652","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G37568934","display_name":null,"funder_award_id":"Grant","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G391238517","display_name":null,"funder_award_id":", and","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5142907401","display_name":null,"funder_award_id":"61872120","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5182208057","display_name":null,"funder_award_id":"30001","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5249178904","display_name":null,"funder_award_id":"Grant No. 6","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5994120800","display_name":null,"funder_award_id":"Natural","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6686150242","display_name":null,"funder_award_id":"LQY19G030001","funder_id":"https://openalex.org/F4320338464","funder_display_name":"Natural Science Foundation of Zhejiang Province"},{"id":"https://openalex.org/G6731016217","display_name":null,"funder_award_id":"LY18F020017","funder_id":"https://openalex.org/F4320338464","funder_display_name":"Natural Science Foundation of Zhejiang Province"},{"id":"https://openalex.org/G7702775625","display_name":null,"funder_award_id":"6187212","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7726157001","display_name":null,"funder_award_id":"Grant No.","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7990962583","display_name":null,"funder_award_id":"LY18F030007 and LY18F020017","funder_id":"https://openalex.org/F4320338464","funder_display_name":"Natural Science Foundation of Zhejiang Province"},{"id":"https://openalex.org/G8058679042","display_name":null,"funder_award_id":"No. 61872120","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8955107213","display_name":null,"funder_award_id":"Major","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320338464","display_name":"Natural Science Foundation of Zhejiang Province","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2973204732.pdf"},"referenced_works_count":41,"referenced_works":["https://openalex.org/W131619556","https://openalex.org/W1536060130","https://openalex.org/W1605385825","https://openalex.org/W1680189815","https://openalex.org/W1903894141","https://openalex.org/W1946850312","https://openalex.org/W1974640488","https://openalex.org/W1977843657","https://openalex.org/W1986637826","https://openalex.org/W1997310799","https://openalex.org/W2002039869","https://openalex.org/W2008620264","https://openalex.org/W2048468623","https://openalex.org/W2082464154","https://openalex.org/W2096423888","https://openalex.org/W2097684179","https://openalex.org/W2112090702","https://openalex.org/W2148050869","https://openalex.org/W2157635833","https://openalex.org/W2198232717","https://openalex.org/W2294347342","https://openalex.org/W2295695614","https://openalex.org/W2484873874","https://openalex.org/W2490016826","https://openalex.org/W2492695942","https://openalex.org/W2493079261","https://openalex.org/W2587173351","https://openalex.org/W2605299441","https://openalex.org/W2755088640","https://openalex.org/W2761072891","https://openalex.org/W2789628800","https://openalex.org/W2898897240","https://openalex.org/W2903793179","https://openalex.org/W2908638052","https://openalex.org/W2950693886","https://openalex.org/W2963048056","https://openalex.org/W3101158652","https://openalex.org/W4312512934","https://openalex.org/W6639897565","https://openalex.org/W6722312168","https://openalex.org/W6733365597"],"related_works":["https://openalex.org/W4387497383","https://openalex.org/W3183948672","https://openalex.org/W3173606202","https://openalex.org/W3110381201","https://openalex.org/W2948807893","https://openalex.org/W2935909890","https://openalex.org/W2778153218","https://openalex.org/W2758277628","https://openalex.org/W1531601525","https://openalex.org/W1995054232"],"abstract_inverted_index":{"The":[0],"privacy":[1,40],"and":[2,33,41,71,112,131,149,173],"security":[3,42],"of":[4,7,24,43,67,94,105,123,145],"the":[5,16,30,39,44,47,65,68,77,101,106,118,124,143,161,168,175,187],"Internet":[6],"Things":[8],"(IoT)":[9],"are":[10],"emerging":[11],"as":[12,76],"popular":[13],"issues":[14],"in":[15,46,52,128,167],"IoT.":[17],"At":[18],"present,":[19],"there":[20],"exist":[21],"several":[22],"pieces":[23],"research":[25],"on":[26,29,56],"network":[27,35,61,70,78],"analysis":[28,36,62,79],"IoT":[31,48,69],"network,":[32],"malicious":[34,60],"may":[37],"threaten":[38],"leader":[45],"networks.":[49],"With":[50],"this":[51,88],"mind,":[53],"we":[54,72],"focus":[55],"how":[57],"to":[58,98,116],"avoid":[59],"by":[63,178],"modifying":[64],"topology":[66],"choose":[73,183],"closeness":[74,102,119,136],"centrality":[75],"tool.":[80],"This":[81],"paper":[82],"makes":[83],"three":[84],"key":[85],"contributions":[86],"toward":[87],"problem:":[89],"(1)":[90],"An":[91],"optimization":[92,126],"problem":[93,127],"removing":[95],"k":[96,184],"edges":[97,185],"minimize":[99],"(maximize)":[100],"value":[103,120,137],"(rank)":[104,121,138],"leader;":[107],"(2)":[108],"A":[109],"greedy":[110],"(greedy":[111],"simulated":[113],"annealing)":[114],"algorithm":[115],"solve":[117],"case":[122,170],"proposed":[125],"polynomial":[129],"time;":[130],"(3)UpdateCloseness":[132],"(FastTopRank)\u2014algorithm":[133],"for":[134],"computing":[135],"efficiently.":[139],"Experimental":[140],"results":[141],"prove":[142],"efficiency":[144],"our":[146,152],"pruning":[147],"algorithms":[148,154,181],"show":[150],"that":[151],"heuristic":[153],"can":[155],"obtain":[156],"accurate":[157],"solutions":[158,176],"compared":[159],"with":[160,186],"optimal":[162],"solution":[163],"(the":[164],"approximation":[165],"ratio":[166],"worst":[169],"is":[171],"0.85)":[172],"outperform":[174],"obtained":[177],"other":[179],"baseline":[180],"(e.g.,":[182],"highest":[188],"degree":[189],"sum).":[190]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2019,"cited_by_count":1}],"updated_date":"2026-04-16T08:26:57.006410","created_date":"2019-09-19T00:00:00"}
