{"id":"https://openalex.org/W7082981555","doi":"https://doi.org/10.1145/3749162","title":"Efficient Proximity Queries on Simplified Height Maps","display_name":"Efficient Proximity Queries on Simplified Height Maps","publication_year":2025,"publication_date":"2025-09-22","ids":{"openalex":"https://openalex.org/W7082981555","doi":"https://doi.org/10.1145/3749162"},"language":"en","primary_location":{"id":"doi:10.1145/3749162","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3749162","pdf_url":null,"source":{"id":"https://openalex.org/S4387289859","display_name":"Proceedings of the ACM on Management of Data","issn_l":"2836-6573","issn":["2836-6573"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the ACM on Management of Data","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":null,"display_name":"Yinzhao Yan","orcid":"https://orcid.org/0000-0001-6261-1569"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":true,"raw_author_name":"Yinzhao Yan","raw_affiliation_strings":["The Hong Kong University of Science and Technology, Hong Kong, Hong Kong"],"raw_orcid":"https://orcid.org/0000-0001-6261-1569","affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology, Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"last","author":{"id":null,"display_name":"Raymond Chi-Wing Wong","orcid":"https://orcid.org/0000-0001-7045-6503"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Raymond Chi-Wing Wong","raw_affiliation_strings":["The Hong Kong University of Science and Technology, Hong Kong, Hong Kong"],"raw_orcid":"https://orcid.org/0000-0001-7045-6503","affiliations":[{"raw_affiliation_string":"The Hong Kong University of Science and Technology, Hong Kong, Hong Kong","institution_ids":["https://openalex.org/I200769079"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I200769079"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.42741935,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"3","issue":"4","first_page":"1","last_page":"26"},"is_retracted":false,"is_paratext":false,"is_xpac":true,"primary_topic":{"id":"https://openalex.org/T12289","display_name":"Library Science and Administration","score":0.5353999733924866,"subfield":{"id":"https://openalex.org/subfields/3309","display_name":"Library and Information Sciences"},"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/T12289","display_name":"Library Science and Administration","score":0.5353999733924866,"subfield":{"id":"https://openalex.org/subfields/3309","display_name":"Library and Information Sciences"},"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/T10712","display_name":"Library Science and Information Literacy","score":0.06520000100135803,"subfield":{"id":"https://openalex.org/subfields/3309","display_name":"Library and Information Sciences"},"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/T11462","display_name":"Museums and Cultural Heritage","score":0.03689999878406525,"subfield":{"id":"https://openalex.org/subfields/1209","display_name":"Museology"},"field":{"id":"https://openalex.org/fields/12","display_name":"Arts and Humanities"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/shortest-path-problem","display_name":"Shortest path problem","score":0.6007000207901001},{"id":"https://openalex.org/keywords/path","display_name":"Path (computing)","score":0.5396000146865845},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.5389999747276306},{"id":"https://openalex.org/keywords/point-cloud","display_name":"Point cloud","score":0.5343000292778015},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.5116999745368958},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.46619999408721924}],"concepts":[{"id":"https://openalex.org/C22590252","wikidata":"https://www.wikidata.org/wiki/Q1058754","display_name":"Shortest path problem","level":3,"score":0.6007000207901001},{"id":"https://openalex.org/C2777735758","wikidata":"https://www.wikidata.org/wiki/Q817765","display_name":"Path (computing)","level":2,"score":0.5396000146865845},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.5389999747276306},{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.5343000292778015},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5228999853134155},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.5116999745368958},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.49320000410079956},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.46619999408721924},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4268999993801117},{"id":"https://openalex.org/C2776799497","wikidata":"https://www.wikidata.org/wiki/Q484298","display_name":"Surface (topology)","level":2,"score":0.3720000088214874},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.29170000553131104},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.28940001130104065},{"id":"https://openalex.org/C129045301","wikidata":"https://www.wikidata.org/wiki/Q7144654","display_name":"Path length","level":2,"score":0.2768999934196472},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.27649998664855957},{"id":"https://openalex.org/C148764684","wikidata":"https://www.wikidata.org/wiki/Q621751","display_name":"Approximation algorithm","level":2,"score":0.26190000772476196},{"id":"https://openalex.org/C21080849","wikidata":"https://www.wikidata.org/wiki/Q13611879","display_name":"Data point","level":2,"score":0.2599000036716461}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3749162","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3749162","pdf_url":null,"source":{"id":"https://openalex.org/S4387289859","display_name":"Proceedings of the ACM on Management of Data","issn_l":"2836-6573","issn":["2836-6573"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the ACM on Management of Data","raw_type":"journal-article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-168381","is_oa":false,"landing_page_url":"http://repository.hkust.edu.hk/ir/Record/1783.1-168381","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Conference paper"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.616950511932373}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":36,"referenced_works":["https://openalex.org/W263933163","https://openalex.org/W2007813371","https://openalex.org/W2021587133","https://openalex.org/W2025130628","https://openalex.org/W2034007094","https://openalex.org/W2063722406","https://openalex.org/W2074537686","https://openalex.org/W2101229914","https://openalex.org/W2102842495","https://openalex.org/W2108567935","https://openalex.org/W2114427728","https://openalex.org/W2117961179","https://openalex.org/W2127151074","https://openalex.org/W2137101044","https://openalex.org/W2141555863","https://openalex.org/W2293404936","https://openalex.org/W2408264342","https://openalex.org/W3044358537","https://openalex.org/W3167652394","https://openalex.org/W3196851046","https://openalex.org/W3208442141","https://openalex.org/W4200599077","https://openalex.org/W4220801629","https://openalex.org/W4289551981","https://openalex.org/W4302774246","https://openalex.org/W4362714628","https://openalex.org/W4380433270","https://openalex.org/W4389339325","https://openalex.org/W4392565838","https://openalex.org/W4393148951","https://openalex.org/W4393183742","https://openalex.org/W4394565668","https://openalex.org/W4399800301","https://openalex.org/W4400728528","https://openalex.org/W4401415279","https://openalex.org/W4403624614"],"related_works":[],"abstract_inverted_index":{"Performing":[0,148],"proximity":[1,56,92,149],"queries":[2,57,93,150],"on":[3,50,62,73,94,151,166],"a":[4,51,63,70,83],"3D":[5,22],"surface":[6,23],"has":[7],"gained":[8],"significant":[9],"attention":[10],"from":[11],"both":[12],"academic":[13],"and":[14,35,88,111,117,138,161,171],"industry.":[15],"The":[16],"height":[17,52,64,75,97,154],"map":[18,65,76,155],"is":[19,66,106,156],"one":[20],"fundamental":[21],"representation":[24],"with":[25,175],"many":[26],"advantages":[27],"over":[28],"others":[29],"such":[30],"as":[31],"the":[32,46,59,74,95,122,135,144,167,172],"point":[33,125,169],"cloud":[34,126,170],"Triangular-Irregular":[36],"Network":[37],"(":[38],"TIN":[39,128,174],").":[40],"In":[41],"this":[42],"paper,":[43],"we":[44,68],"study":[45],"shortest":[47,60,84],"path":[48,61,85],"query":[49,86],"map.":[53,98],"Since":[54],"performing":[55],"using":[58],"costly,":[67],"propose":[69,82],"simplification":[71,104,130,136],"algorithm":[72,87,105,131],"to":[77,108,158],"accelerate":[78],"it.":[79],"We":[80],"also":[81],"algorithms":[89],"for":[90],"answering":[91],"original/simplified":[96],"Our":[99],"experiments":[100],"show":[101],"that":[102],"our":[103,152],"up":[107,157],"21":[109],"times":[110,113,116,160,163],"5":[112,159],"(resp.":[114,127],"412":[115],"7":[118],"times)":[119],"better":[120],"than":[121,165],"best-known":[123],"adapted":[124],")":[129],"in":[132],"terms":[133],"of":[134,143],"time":[137],"output":[139],"size":[140,142],"(the":[141],"simplified":[145,153,168,173],"surface),":[146],"respectively.":[147,181],"1,340":[162],"quicker":[164],"an":[176],"error":[177],"at":[178],"most":[179],"10%,":[180]},"counts_by_year":[],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
