{"id":"https://openalex.org/W3134404563","doi":"https://doi.org/10.3390/s21051782","title":"Temporal and Spatial Nearest Neighbor Values Based Missing Data Imputation in Wireless Sensor Networks","display_name":"Temporal and Spatial Nearest Neighbor Values Based Missing Data Imputation in Wireless Sensor Networks","publication_year":2021,"publication_date":"2021-03-04","ids":{"openalex":"https://openalex.org/W3134404563","doi":"https://doi.org/10.3390/s21051782","mag":"3134404563","pmid":"https://pubmed.ncbi.nlm.nih.gov/33806481"},"language":"en","primary_location":{"id":"doi:10.3390/s21051782","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21051782","pdf_url":"https://www.mdpi.com/1424-8220/21/5/1782/pdf?version=1615358743","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","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/21/5/1782/pdf?version=1615358743","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5058157458","display_name":"Yulong Deng","orcid":"https://orcid.org/0000-0002-0672-4072"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yulong Deng","raw_affiliation_strings":["College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing University of Posts and Telecommunications, Nanjing 210003, China"],"raw_orcid":"https://orcid.org/0000-0002-0672-4072","affiliations":[{"raw_affiliation_string":"College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","institution_ids":["https://openalex.org/I41198531"]},{"raw_affiliation_string":"Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088154815","display_name":"Chong Han","orcid":"https://orcid.org/0000-0002-2657-1464"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chong Han","raw_affiliation_strings":["College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing University of Posts and Telecommunications, Nanjing 210003, China"],"raw_orcid":"https://orcid.org/0000-0002-2657-1464","affiliations":[{"raw_affiliation_string":"College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","institution_ids":["https://openalex.org/I41198531"]},{"raw_affiliation_string":"Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001134659","display_name":"Jian Guo","orcid":"https://orcid.org/0000-0003-3605-2999"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jian Guo","raw_affiliation_strings":["College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing University of Posts and Telecommunications, Nanjing 210003, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","institution_ids":["https://openalex.org/I41198531"]},{"raw_affiliation_string":"Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057561333","display_name":"Lijuan Sun","orcid":"https://orcid.org/0000-0002-5445-2905"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Lijuan Sun","raw_affiliation_strings":["College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing University of Posts and Telecommunications, Nanjing 210003, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","institution_ids":["https://openalex.org/I41198531"]},{"raw_affiliation_string":"Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing University of Posts and Telecommunications, Nanjing 210003, China","institution_ids":["https://openalex.org/I41198531"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5057561333"],"corresponding_institution_ids":["https://openalex.org/I41198531"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":3.7893,"has_fulltext":true,"cited_by_count":23,"citation_normalized_percentile":{"value":0.92383959,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":93,"max":99},"biblio":{"volume":"21","issue":"5","first_page":"1782","last_page":"1782"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9983999729156494,"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"}},"topics":[{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.9983999729156494,"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"}},{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9887999892234802,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12879","display_name":"Distributed Sensor Networks and Detection Algorithms","score":0.9487000107765198,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/imputation","display_name":"Imputation (statistics)","score":0.8573493361473083},{"id":"https://openalex.org/keywords/missing-data","display_name":"Missing data","score":0.7579590082168579},{"id":"https://openalex.org/keywords/k-nearest-neighbors-algorithm","display_name":"k-nearest neighbors algorithm","score":0.7145878076553345},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.665058434009552},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6440742611885071},{"id":"https://openalex.org/keywords/wireless-sensor-network","display_name":"Wireless sensor network","score":0.6205657124519348},{"id":"https://openalex.org/keywords/exploit","display_name":"Exploit","score":0.46195435523986816},{"id":"https://openalex.org/keywords/spatial-analysis","display_name":"Spatial analysis","score":0.4166712462902069},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2454550564289093},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.2418382465839386},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1873515546321869},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.13413473963737488}],"concepts":[{"id":"https://openalex.org/C58041806","wikidata":"https://www.wikidata.org/wiki/Q1660484","display_name":"Imputation (statistics)","level":3,"score":0.8573493361473083},{"id":"https://openalex.org/C9357733","wikidata":"https://www.wikidata.org/wiki/Q6878417","display_name":"Missing data","level":2,"score":0.7579590082168579},{"id":"https://openalex.org/C113238511","wikidata":"https://www.wikidata.org/wiki/Q1071612","display_name":"k-nearest neighbors algorithm","level":2,"score":0.7145878076553345},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.665058434009552},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6440742611885071},{"id":"https://openalex.org/C24590314","wikidata":"https://www.wikidata.org/wiki/Q336038","display_name":"Wireless sensor network","level":2,"score":0.6205657124519348},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.46195435523986816},{"id":"https://openalex.org/C159620131","wikidata":"https://www.wikidata.org/wiki/Q1938983","display_name":"Spatial analysis","level":2,"score":0.4166712462902069},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2454550564289093},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.2418382465839386},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1873515546321869},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.13413473963737488},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.3390/s21051782","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21051782","pdf_url":"https://www.mdpi.com/1424-8220/21/5/1782/pdf?version=1615358743","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":"pmid:33806481","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/33806481","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:54c29190b59245b9a6ed27b99ca6461b","is_oa":true,"landing_page_url":"https://doaj.org/article/54c29190b59245b9a6ed27b99ca6461b","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"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 21, Iss 5, p 1782 (2021)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/21/5/1782/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s21051782","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; Volume 21; Issue 5; Pages: 1782","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7961379","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7961379","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"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/s21051782","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21051782","pdf_url":"https://www.mdpi.com/1424-8220/21/5/1782/pdf?version=1615358743","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":[],"awards":[{"id":"https://openalex.org/G5496929807","display_name":null,"funder_award_id":"2018K009B","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7465113774","display_name":"\u57fa\u4e8e\u4fe1\u9053\u72b6\u6001\u4fe1\u606f\u7684\u666e\u9002\u65e0\u7ebf\u611f\u77e5\u6280\u672f\u7814\u7a76","funder_award_id":"61873131","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7949629257","display_name":null,"funder_award_id":"61702284","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8742135436","display_name":null,"funder_award_id":"1908085MF207","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/F4320321605","display_name":"Government of Jiangsu Province","ror":"https://ror.org/004svx814"},{"id":"https://openalex.org/F4320327585","display_name":"Fuyang Normal University","ror":"https://ror.org/02njz9p87"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3134404563.pdf","grobid_xml":"https://content.openalex.org/works/W3134404563.grobid-xml"},"referenced_works_count":20,"referenced_works":["https://openalex.org/W1591720945","https://openalex.org/W2005149470","https://openalex.org/W2011233235","https://openalex.org/W2019189770","https://openalex.org/W2045531872","https://openalex.org/W2052196819","https://openalex.org/W2070807660","https://openalex.org/W2096863518","https://openalex.org/W2100358124","https://openalex.org/W2104275550","https://openalex.org/W2150015649","https://openalex.org/W2160144994","https://openalex.org/W2192009965","https://openalex.org/W2252684825","https://openalex.org/W2480680997","https://openalex.org/W2932881901","https://openalex.org/W2979631643","https://openalex.org/W3023016738","https://openalex.org/W6655034608","https://openalex.org/W6691655129"],"related_works":["https://openalex.org/W2181530120","https://openalex.org/W4211215373","https://openalex.org/W2024529227","https://openalex.org/W1574575415","https://openalex.org/W3144172081","https://openalex.org/W3179858851","https://openalex.org/W3028371478","https://openalex.org/W2081476516","https://openalex.org/W2581984549","https://openalex.org/W3123177881"],"abstract_inverted_index":{"Data":[0],"missing":[1,22,45],"is":[2,24,151],"a":[3,49],"common":[4,27],"problem":[5],"in":[6],"wireless":[7,142],"sensor":[8,32,102,143],"networks.":[9],"Currently,":[10],"to":[11,97,153],"ensure":[12],"the":[13,21,25,38,54,73,83,90,93,99,105,108,112,122,131,146,155,161],"performance":[14],"of":[15,75,92,125,157,163],"data":[16,23,33,46,86,103],"processing,":[17],"making":[18],"imputation":[19,47,51,158],"for":[20],"most":[26],"method":[28],"before":[29],"getting":[30],"into":[31],"analysis.":[34],"In":[35],"this":[36],"paper,":[37],"temporal":[39,55],"and":[40,56,77,85,127,139,145,159],"spatial":[41,57],"nearest":[42,58,66],"neighbor":[43,59,67],"values-based":[44],"(TSNN),":[48],"new":[50],"based":[52],"on":[53,104,136],"values":[60,68],"has":[61,114,133],"been":[62,70,115,134],"presented.":[63],"First,":[64],"four":[65],"have":[69],"defined":[71],"from":[72],"perspective":[74],"space":[76],"time":[78],"dimensions":[79],"as":[80,82,117,119],"well":[81,118],"geometrical":[84],"distances,":[87],"which":[88],"are":[89],"bases":[91],"algorithm":[94,113,132],"that":[95,149,165],"help":[96],"exploit":[98],"correlations":[100],"among":[101],"nodes":[106],"with":[107],"regression":[109],"tool.":[110],"Next,":[111],"elaborated":[116],"two":[120],"parameters,":[121],"best":[123],"number":[124,162],"neighbors":[126],"spatial-temporal":[128],"coefficient.":[129],"Finally,":[130],"tested":[135],"an":[137,140],"indoor":[138],"outdoor":[141],"network,":[144],"result":[147],"shows":[148],"TSNN":[150],"able":[152],"improve":[154],"accuracy":[156],"increase":[160],"cases":[164],"can":[166],"be":[167],"imputed":[168],"effectively.":[169]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":2}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
