{"id":"https://openalex.org/W4402980080","doi":"https://doi.org/10.1109/icme57554.2024.10687606","title":"EPContrast: Effective Point-level Contrastive Learning for Large-scale Point Cloud Understanding","display_name":"EPContrast: Effective Point-level Contrastive Learning for Large-scale Point Cloud Understanding","publication_year":2024,"publication_date":"2024-07-15","ids":{"openalex":"https://openalex.org/W4402980080","doi":"https://doi.org/10.1109/icme57554.2024.10687606"},"language":"en","primary_location":{"id":"doi:10.1109/icme57554.2024.10687606","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icme57554.2024.10687606","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 IEEE International Conference on Multimedia and Expo (ICME)","raw_type":"proceedings-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/A5023015161","display_name":"Zhiyi Pan","orcid":"https://orcid.org/0000-0002-0635-0349"},"institutions":[{"id":"https://openalex.org/I4210136793","display_name":"Peng Cheng Laboratory","ror":"https://ror.org/03qdqbt06","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210136793"]},{"id":"https://openalex.org/I20231570","display_name":"Peking University","ror":"https://ror.org/02v51f717","country_code":"CN","type":"education","lineage":["https://openalex.org/I20231570"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Zhiyi Pan","raw_affiliation_strings":["Peking University & Peng Cheng Laboratory,School of Electronic and Computer Engineering,Shenzhen,China"],"affiliations":[{"raw_affiliation_string":"Peking University & Peng Cheng Laboratory,School of Electronic and Computer Engineering,Shenzhen,China","institution_ids":["https://openalex.org/I4210136793","https://openalex.org/I20231570"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100731913","display_name":"Guoqing Liu","orcid":"https://orcid.org/0000-0003-4496-8200"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Guoqing Liu","raw_affiliation_strings":["Minieye Inc.,Shenzhen,China"],"affiliations":[{"raw_affiliation_string":"Minieye Inc.,Shenzhen,China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010846765","display_name":"Wei Gao","orcid":"https://orcid.org/0000-0003-2257-5684"},"institutions":[{"id":"https://openalex.org/I20231570","display_name":"Peking University","ror":"https://ror.org/02v51f717","country_code":"CN","type":"education","lineage":["https://openalex.org/I20231570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wei Gao","raw_affiliation_strings":["Peking University,School of Electronic and Computer Engineering,Shenzhen,China"],"affiliations":[{"raw_affiliation_string":"Peking University,School of Electronic and Computer Engineering,Shenzhen,China","institution_ids":["https://openalex.org/I20231570"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033917496","display_name":"Thomas H. Li","orcid":null},"institutions":[{"id":"https://openalex.org/I20231570","display_name":"Peking University","ror":"https://ror.org/02v51f717","country_code":"CN","type":"education","lineage":["https://openalex.org/I20231570"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Thomas H. Li","raw_affiliation_strings":["Peking University,School of Electronic and Computer Engineering,Shenzhen,China"],"affiliations":[{"raw_affiliation_string":"Peking University,School of Electronic and Computer Engineering,Shenzhen,China","institution_ids":["https://openalex.org/I20231570"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5023015161"],"corresponding_institution_ids":["https://openalex.org/I20231570","https://openalex.org/I4210136793"],"apc_list":null,"apc_paid":null,"fwci":14.0099,"has_fulltext":false,"cited_by_count":17,"citation_normalized_percentile":{"value":0.98861736,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11211","display_name":"3D Surveying and Cultural Heritage","score":0.9915000200271606,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11211","display_name":"3D Surveying and Cultural Heritage","score":0.9915000200271606,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10719","display_name":"3D Shape Modeling and Analysis","score":0.9771000146865845,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T11164","display_name":"Remote Sensing and LiDAR Applications","score":0.9631999731063843,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental 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":0.7115052938461304},{"id":"https://openalex.org/keywords/scale","display_name":"Scale (ratio)","score":0.5525203943252563},{"id":"https://openalex.org/keywords/point-cloud","display_name":"Point cloud","score":0.5483168363571167},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.5366138219833374},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.5132756233215332},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.33375978469848633},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.07690632343292236},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.07237687706947327},{"id":"https://openalex.org/keywords/cartography","display_name":"Cartography","score":0.052469998598098755}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7115052938461304},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.5525203943252563},{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.5483168363571167},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.5366138219833374},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.5132756233215332},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.33375978469848633},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.07690632343292236},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.07237687706947327},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.052469998598098755},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icme57554.2024.10687606","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icme57554.2024.10687606","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 IEEE International Conference on Multimedia and Expo (ICME)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W2460657278","https://openalex.org/W2594519801","https://openalex.org/W2963125977","https://openalex.org/W2988715931","https://openalex.org/W2991216808","https://openalex.org/W3035739565","https://openalex.org/W3097823560","https://openalex.org/W3116959466","https://openalex.org/W3119708198","https://openalex.org/W3166573884","https://openalex.org/W3173636389","https://openalex.org/W4206778101","https://openalex.org/W4226297128","https://openalex.org/W4312317653","https://openalex.org/W4386071462","https://openalex.org/W4386076031"],"related_works":["https://openalex.org/W4244478748","https://openalex.org/W4223488648","https://openalex.org/W2134969820","https://openalex.org/W2251605416","https://openalex.org/W2560439919","https://openalex.org/W4389340727","https://openalex.org/W3150465815","https://openalex.org/W1997222214","https://openalex.org/W2802581102","https://openalex.org/W4205786897"],"abstract_inverted_index":{"The":[0,100],"acquisition":[1],"of":[2,26,62,102],"inductive":[3],"bias":[4,131],"through":[5,106],"pointlevel":[6],"contrastive":[7,82,91],"learning":[8],"holds":[9],"paramount":[10],"significance":[11],"in":[12,20],"point":[13,28,55],"cloud":[14,29,56],"pre-training.":[15],"However,":[16],"the":[17,24,27,35,96],"square":[18],"growth":[19],"computational":[21,97],"requirements":[22],"with":[23],"scale":[25],"poses":[30],"a":[31],"substantial":[32],"impediment":[33],"to":[34],"practical":[36],"deployment":[37],"and":[38,64,71,111,121,136],"execution.":[39],"To":[40],"address":[41],"this":[42,44],"challenge,":[43],"paper":[45],"proposes":[46],"an":[47],"Effective":[48],"Pointlevel":[49],"Contrastive":[50],"Learning":[51],"method":[52],"for":[53],"large-scale":[54],"understanding":[57],"dubbed":[58],"EPContrast,":[59],"which":[60],"consists":[61],"AGContrast":[63,68],"ChannelContrast.":[65],"In":[66,124],"practice,":[67],"constructs":[69],"positive":[70],"negative":[72],"pairs":[73],"based":[74],"on":[75,109],"asymmetric":[76],"granularity":[77],"embedding,":[78],"while":[79,93],"ChannelContrast":[80],"imposes":[81],"supervision":[83],"between":[84],"channel":[85],"feature":[86],"maps.":[87],"EPContrast":[88,103],"offers":[89],"point-level":[90],"loss":[92],"concurrently":[94],"mitigating":[95],"resource":[98],"burden.":[99],"efficacy":[101],"is":[104],"substantiated":[105],"comprehensive":[107],"validation":[108],"S3DIS":[110],"ScanNetV2,":[112],"encompassing":[113],"tasks":[114],"such":[115],"as":[116],"semantic":[117],"segmentation,":[118,120],"instance":[119],"object":[122],"detection.":[123],"addition,":[125],"rich":[126],"ablation":[127],"experiments":[128],"demonstrate":[129],"remarkable":[130],"induction":[132],"capabilities":[133],"under":[134],"label-efficient":[135],"one-epoch":[137],"training":[138],"settings.":[139]},"counts_by_year":[{"year":2025,"cited_by_count":15},{"year":2024,"cited_by_count":2}],"updated_date":"2026-04-06T07:47:59.780226","created_date":"2025-10-10T00:00:00"}