{"id":"https://openalex.org/W4307268925","doi":"https://doi.org/10.3390/s22218115","title":"Self-Supervised Learning for Point-Cloud Classification by a Multigrid Autoencoder","display_name":"Self-Supervised Learning for Point-Cloud Classification by a Multigrid Autoencoder","publication_year":2022,"publication_date":"2022-10-23","ids":{"openalex":"https://openalex.org/W4307268925","doi":"https://doi.org/10.3390/s22218115","pmid":"https://pubmed.ncbi.nlm.nih.gov/36365813"},"language":"en","primary_location":{"id":"doi:10.3390/s22218115","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s22218115","pdf_url":"https://www.mdpi.com/1424-8220/22/21/8115/pdf?version=1667091758","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/1424-8220/22/21/8115/pdf?version=1667091758","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5048008225","display_name":"Ruifeng Zhai","orcid":"https://orcid.org/0000-0001-7182-7644"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]},{"id":"https://openalex.org/I4210091786","display_name":"State Key Laboratory on Integrated Optoelectronics","ror":"https://ror.org/00g102351","country_code":"CN","type":"facility","lineage":["https://openalex.org/I194450716","https://openalex.org/I19820366","https://openalex.org/I4210091786","https://openalex.org/I4210149211","https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruifeng Zhai","raw_affiliation_strings":["State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China","institution_ids":["https://openalex.org/I194450716","https://openalex.org/I4210091786"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026289749","display_name":"Junfeng Song","orcid":"https://orcid.org/0000-0002-2079-7278"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]},{"id":"https://openalex.org/I4210091786","display_name":"State Key Laboratory on Integrated Optoelectronics","ror":"https://ror.org/00g102351","country_code":"CN","type":"facility","lineage":["https://openalex.org/I194450716","https://openalex.org/I19820366","https://openalex.org/I4210091786","https://openalex.org/I4210149211","https://openalex.org/I99065089"]},{"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"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junfeng Song","raw_affiliation_strings":["Peng Cheng Laboratory, Shenzhen 518000, China","State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Peng Cheng Laboratory, Shenzhen 518000, China","institution_ids":["https://openalex.org/I4210136793"]},{"raw_affiliation_string":"State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China","institution_ids":["https://openalex.org/I194450716","https://openalex.org/I4210091786"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029153368","display_name":"Shuzhao Hou","orcid":null},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]},{"id":"https://openalex.org/I4210091786","display_name":"State Key Laboratory on Integrated Optoelectronics","ror":"https://ror.org/00g102351","country_code":"CN","type":"facility","lineage":["https://openalex.org/I194450716","https://openalex.org/I19820366","https://openalex.org/I4210091786","https://openalex.org/I4210149211","https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuzhao Hou","raw_affiliation_strings":["State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China","institution_ids":["https://openalex.org/I194450716","https://openalex.org/I4210091786"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014458578","display_name":"Fengli Gao","orcid":"https://orcid.org/0000-0001-6097-4999"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]},{"id":"https://openalex.org/I4210091786","display_name":"State Key Laboratory on Integrated Optoelectronics","ror":"https://ror.org/00g102351","country_code":"CN","type":"facility","lineage":["https://openalex.org/I194450716","https://openalex.org/I19820366","https://openalex.org/I4210091786","https://openalex.org/I4210149211","https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Fengli Gao","raw_affiliation_strings":["State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China","institution_ids":["https://openalex.org/I194450716","https://openalex.org/I4210091786"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100381623","display_name":"Xueyan Li","orcid":"https://orcid.org/0000-0002-9206-9480"},"institutions":[{"id":"https://openalex.org/I194450716","display_name":"Jilin University","ror":"https://ror.org/00js3aw79","country_code":"CN","type":"education","lineage":["https://openalex.org/I194450716"]},{"id":"https://openalex.org/I4210091786","display_name":"State Key Laboratory on Integrated Optoelectronics","ror":"https://ror.org/00g102351","country_code":"CN","type":"facility","lineage":["https://openalex.org/I194450716","https://openalex.org/I19820366","https://openalex.org/I4210091786","https://openalex.org/I4210149211","https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xueyan Li","raw_affiliation_strings":["State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China","institution_ids":["https://openalex.org/I194450716","https://openalex.org/I4210091786"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5014458578","https://openalex.org/A5100381623"],"corresponding_institution_ids":["https://openalex.org/I194450716","https://openalex.org/I4210091786"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2673},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2673},"fwci":0.2804,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.43786633,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":95},"biblio":{"volume":"22","issue":"21","first_page":"8115","last_page":"8115"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10719","display_name":"3D Shape Modeling and Analysis","score":0.9991999864578247,"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"}},"topics":[{"id":"https://openalex.org/T10719","display_name":"3D Shape Modeling and Analysis","score":0.9991999864578247,"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":0.9991999864578247,"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"}},{"id":"https://openalex.org/T11211","display_name":"3D Surveying and Cultural Heritage","score":0.9979000091552734,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/autoencoder","display_name":"Autoencoder","score":0.9301167726516724},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.7347707152366638},{"id":"https://openalex.org/keywords/point-cloud","display_name":"Point cloud","score":0.7142924070358276},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.59676593542099},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5812129974365234},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.5059406161308289},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.4927199184894562},{"id":"https://openalex.org/keywords/supervised-learning","display_name":"Supervised learning","score":0.46082767844200134},{"id":"https://openalex.org/keywords/deep-learning","display_name":"Deep learning","score":0.4443410634994507},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.326432466506958},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.2871931195259094},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1235596239566803},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.06306782364845276}],"concepts":[{"id":"https://openalex.org/C101738243","wikidata":"https://www.wikidata.org/wiki/Q786435","display_name":"Autoencoder","level":3,"score":0.9301167726516724},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.7347707152366638},{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.7142924070358276},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.59676593542099},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5812129974365234},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.5059406161308289},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.4927199184894562},{"id":"https://openalex.org/C136389625","wikidata":"https://www.wikidata.org/wiki/Q334384","display_name":"Supervised learning","level":3,"score":0.46082767844200134},{"id":"https://openalex.org/C108583219","wikidata":"https://www.wikidata.org/wiki/Q197536","display_name":"Deep learning","level":2,"score":0.4443410634994507},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.326432466506958},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.2871931195259094},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1235596239566803},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.06306782364845276},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.3390/s22218115","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s22218115","pdf_url":"https://www.mdpi.com/1424-8220/22/21/8115/pdf?version=1667091758","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:36365813","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/36365813","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:c89b942a8c2f4290bbe40e947da3864c","is_oa":true,"landing_page_url":"https://doaj.org/article/c89b942a8c2f4290bbe40e947da3864c","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 22, Iss 21, p 8115 (2022)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/22/21/8115/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s22218115","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 22; Issue 21; Pages: 8115","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:9658469","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/9658469","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/s22218115","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s22218115","pdf_url":"https://www.mdpi.com/1424-8220/22/21/8115/pdf?version=1667091758","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/G2666541164","display_name":null,"funder_award_id":"62090054","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G438526502","display_name":null,"funder_award_id":"62090053","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5193464806","display_name":null,"funder_award_id":"20200501007GX and 20210301014GX","funder_id":"https://openalex.org/F4320335953","funder_display_name":"Jilin Scientific and Technological Development Program"},{"id":"https://openalex.org/G6101085830","display_name":"\u7845\u57fa\u5149\u5b66\u76f8\u63a7\u9635\u5168\u56fa\u6001\u6fc0\u5149\u96f7\u8fbe\u82af\u7247\u5173\u952e\u6280\u672f\u7684\u7814\u7a76","funder_award_id":"61934003","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8250788735","display_name":null,"funder_award_id":"2022YFB2804503","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program 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/F4320335777","display_name":"National Key Research and Development Program of China","ror":null},{"id":"https://openalex.org/F4320335953","display_name":"Jilin Scientific and Technological Development Program","ror":null}],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4307268925.pdf"},"referenced_works_count":53,"referenced_works":["https://openalex.org/W2560609797","https://openalex.org/W2795374598","https://openalex.org/W2796426482","https://openalex.org/W2810240468","https://openalex.org/W2886499109","https://openalex.org/W2890848214","https://openalex.org/W2905009594","https://openalex.org/W2905288042","https://openalex.org/W2911109671","https://openalex.org/W2938428612","https://openalex.org/W2953823434","https://openalex.org/W2955472583","https://openalex.org/W2960986959","https://openalex.org/W2963158438","https://openalex.org/W2963231572","https://openalex.org/W2967916736","https://openalex.org/W2968949658","https://openalex.org/W2979750740","https://openalex.org/W2980568538","https://openalex.org/W2981440248","https://openalex.org/W2982683655","https://openalex.org/W2995808743","https://openalex.org/W3007809903","https://openalex.org/W3023371261","https://openalex.org/W3031288689","https://openalex.org/W3034493208","https://openalex.org/W3034584726","https://openalex.org/W3035014292","https://openalex.org/W3035363555","https://openalex.org/W3039448353","https://openalex.org/W3041133507","https://openalex.org/W3080980548","https://openalex.org/W3105297345","https://openalex.org/W3109466111","https://openalex.org/W3111535274","https://openalex.org/W3118644257","https://openalex.org/W3118806719","https://openalex.org/W3130886671","https://openalex.org/W3138516171","https://openalex.org/W3153465022","https://openalex.org/W3202611145","https://openalex.org/W3203089644","https://openalex.org/W3206075451","https://openalex.org/W3208511314","https://openalex.org/W3210638576","https://openalex.org/W4206511844","https://openalex.org/W4214755140","https://openalex.org/W4220935190","https://openalex.org/W4225696264","https://openalex.org/W4225988094","https://openalex.org/W6640300118","https://openalex.org/W6747904511","https://openalex.org/W6766622767"],"related_works":["https://openalex.org/W3013693939","https://openalex.org/W2159052453","https://openalex.org/W2566616303","https://openalex.org/W3131327266","https://openalex.org/W2734887215","https://openalex.org/W4297051394","https://openalex.org/W2752972570","https://openalex.org/W2669956259","https://openalex.org/W4249005693","https://openalex.org/W3088732000"],"abstract_inverted_index":{"It":[0],"has":[1,22],"become":[2],"routine":[3],"to":[4,32,51,63],"directly":[5],"process":[6],"point":[7,29,69,92],"clouds":[8],"using":[9],"a":[10],"combination":[11],"of":[12,28,68,80,90,101],"shared":[13],"multilayer":[14],"perceptrons":[15],"and":[16,117,131,135],"aggregate":[17],"functions.":[18],"However,":[19,50],"this":[20,48,57],"practice":[21],"difficulty":[23],"capturing":[24],"the":[25,53,65,77,81,91,99,106,118],"local":[26],"information":[27,33,54],"clouds,":[30],"leading":[31],"loss.":[34],"Nevertheless,":[35],"several":[36],"recent":[37],"works":[38],"have":[39],"proposed":[40,72],"models":[41],"that":[42,85,122],"establish":[43],"point-to-point":[44],"relationships":[45],"based":[46],"on":[47,115],"procedure.":[49],"address":[52],"loss,":[55],"in":[56],"study":[58],"we":[59,104],"use":[60],"self-supervised":[61,102],"methods":[62],"enhance":[64],"network's":[66],"understanding":[67,89],"clouds.":[70],"Our":[71],"multigrid":[73],"autoencoder":[74],"(MA)":[75],"constrains":[76],"encoder":[78],"part":[79],"classification":[82,127],"network":[83,108],"so":[84],"it":[86,95],"gains":[87],"an":[88],"cloud":[93],"as":[94],"reconstructs":[96],"it.":[97],"With":[98],"help":[100],"learning,":[103],"find":[105],"original":[107],"improves":[109,125],"performance.":[110],"We":[111],"validate":[112],"our":[113,123],"model":[114],"PointNet++,":[116],"experimental":[119],"results":[120],"show":[121],"method":[124],"overall":[126],"accuracy":[128],"by":[129],"2.0%":[130],"4.7%":[132],"with":[133],"ModelNet40":[134],"ScanObjectNN":[136],"datasets,":[137],"respectively.":[138]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1}],"updated_date":"2026-07-30T17:31:21.811387","created_date":"2025-10-10T00:00:00"}
