{"id":"https://openalex.org/W3108849024","doi":"https://doi.org/10.1145/3425329.3425351","title":"Hybrid Audio-video Recording System for PBL Lecture in Round Sitting Classroom","display_name":"Hybrid Audio-video Recording System for PBL Lecture in Round Sitting Classroom","publication_year":2020,"publication_date":"2020-09-25","ids":{"openalex":"https://openalex.org/W3108849024","doi":"https://doi.org/10.1145/3425329.3425351","mag":"3108849024"},"language":"en","primary_location":{"id":"doi:10.1145/3425329.3425351","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3425329.3425351","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2020 The 2nd World Symposium on Software Engineering","raw_type":"proceedings-article"},"type":"conference-paper","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/A5026987375","display_name":"Ao Ku","orcid":null},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ao Ku","raw_affiliation_strings":["Huazhong University of Science and Technology Wuhan, Hubei, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Huazhong University of Science and Technology Wuhan, Hubei, China","institution_ids":["https://openalex.org/I47720641"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080649483","display_name":"Wei Xu","orcid":"https://orcid.org/0000-0002-6616-3633"},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wei Xu","raw_affiliation_strings":["Huazhong University of Science and Technology Wuhan, Hubei, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Huazhong University of Science and Technology Wuhan, Hubei, China","institution_ids":["https://openalex.org/I47720641"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053583574","display_name":"Jintao Zou","orcid":null},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jintao Zou","raw_affiliation_strings":["Huazhong University of Science and Technology Wuhan, Hubei, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Huazhong University of Science and Technology Wuhan, Hubei, China","institution_ids":["https://openalex.org/I47720641"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100743529","display_name":"Wenqi Liu","orcid":null},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenqi Liu","raw_affiliation_strings":["Huazhong University of Science and Technology Wuhan, Hubei, China","department of parasitology school of basic medicine tongji medical college Wuhan, Hubei, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Huazhong University of Science and Technology Wuhan, Hubei, China","institution_ids":["https://openalex.org/I47720641"]},{"raw_affiliation_string":"department of parasitology school of basic medicine tongji medical college Wuhan, Hubei, China","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100431757","display_name":"Wei Liu","orcid":"https://orcid.org/0000-0002-2187-8125"},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wei Liu","raw_affiliation_strings":["Huazhong University of Science and Technology Wuhan, Hubei, China","department of parasitology school of basic medicine tongji medical college Wuhan, Hubei, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Huazhong University of Science and Technology Wuhan, Hubei, China","institution_ids":["https://openalex.org/I47720641"]},{"raw_affiliation_string":"department of parasitology school of basic medicine tongji medical college Wuhan, Hubei, China","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I47720641"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"7","issue":null,"first_page":"155","last_page":"160"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9463000297546387,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T10860","display_name":"Speech and Audio Processing","score":0.9463000297546387,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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":0.7217893600463867},{"id":"https://openalex.org/keywords/microphone","display_name":"Microphone","score":0.6408998966217041},{"id":"https://openalex.org/keywords/shot","display_name":"Shot (pellet)","score":0.5547524690628052},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.5438741445541382},{"id":"https://openalex.org/keywords/economic-shortage","display_name":"Economic shortage","score":0.5309706926345825},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.5276671051979065},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.4746858775615692},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.4563809037208557},{"id":"https://openalex.org/keywords/multimedia","display_name":"Multimedia","score":0.4036065638065338},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3880460560321808},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.11984512209892273},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.09061139822006226}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7217893600463867},{"id":"https://openalex.org/C2778263558","wikidata":"https://www.wikidata.org/wiki/Q46384","display_name":"Microphone","level":3,"score":0.6408998966217041},{"id":"https://openalex.org/C2778344882","wikidata":"https://www.wikidata.org/wiki/Q278938","display_name":"Shot (pellet)","level":2,"score":0.5547524690628052},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.5438741445541382},{"id":"https://openalex.org/C194051981","wikidata":"https://www.wikidata.org/wiki/Q1337691","display_name":"Economic shortage","level":3,"score":0.5309706926345825},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.5276671051979065},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.4746858775615692},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4563809037208557},{"id":"https://openalex.org/C49774154","wikidata":"https://www.wikidata.org/wiki/Q131765","display_name":"Multimedia","level":1,"score":0.4036065638065338},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3880460560321808},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.11984512209892273},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.09061139822006226},{"id":"https://openalex.org/C68115822","wikidata":"https://www.wikidata.org/wiki/Q1068172","display_name":"Sound pressure","level":2,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C2778137410","wikidata":"https://www.wikidata.org/wiki/Q2732820","display_name":"Government (linguistics)","level":2,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"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/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3425329.3425351","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3425329.3425351","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2020 The 2nd World Symposium on Software Engineering","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education","score":0.5299999713897705}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":3,"referenced_works":["https://openalex.org/W2151217332","https://openalex.org/W2346596194","https://openalex.org/W2792278654"],"related_works":["https://openalex.org/W2074502265","https://openalex.org/W4214877189","https://openalex.org/W2773965352","https://openalex.org/W2381179799","https://openalex.org/W2980279061","https://openalex.org/W2334685461","https://openalex.org/W2366718574","https://openalex.org/W2359774528","https://openalex.org/W4298312966","https://openalex.org/W2325697621"],"abstract_inverted_index":{"The":[0,49,144],"PBL":[1,32,74],"classroom":[2],"is":[3,43,52,68,96,118,146],"a":[4,12,21,41,55,81,149],"circular":[5],"area":[6],"in":[7,11,30,73,88,127,175],"which":[8,67,86],"students":[9],"study":[10],"circle.":[13],"At":[14],"the":[15,25,31,36,89,92,115,140,162,172],"same":[16],"time,":[17],"teachers":[18],"should":[19],"have":[20],"complete":[22],"understanding":[23],"of":[24,27,38,57,83,91],"participation":[26],"each":[28],"student":[29],"classroom.":[33,75,100],"Due":[34],"to":[35,45,53,71,98],"shortage":[37],"manpower":[39],"resources,":[40],"system":[42],"needed":[44],"record":[46,178],"students'":[47],"behaviors.":[48],"typical":[50],"solution":[51],"deploy":[54,72],"lot":[56],"prep":[58],"work,":[59],"either":[60],"voila":[61],"recognition":[62],"camera":[63,151],"installation":[64],"or":[65],"immobilization,":[66],"not":[69],"easy":[70],"In":[76,112],"this":[77,113,167],"paper,":[78],"we":[79],"propose":[80],"kind":[82],"lightweight":[84],"equipment,":[85],"locates":[87],"center":[90],"round":[93],"table":[94],"and":[95,123,126,155,177],"scalable":[97],"similar":[99],"It":[101],"can":[102,156,169],"support":[103],"speaker":[104],"localization":[105,110],"function,":[106],"by":[107,148],"hybrid":[108],"audio-video":[109],"algorithm.":[111],"scheme,":[114],"basic":[116],"positioning":[117,122,159],"through":[119],"sound":[120],"field":[121],"six-microphone":[124],"array,":[125],"some":[128],"difficult":[129],"situations,":[130],"such":[131],"as":[132],"people":[133,136],"sitting":[134],"close,":[135],"moving,":[137],"will":[138],"make":[139],"video":[141,145],"decision":[142],"method.":[143],"shot":[147],"fish-eye":[150],"for":[152],"face/mouth":[153],"detection":[154],"also":[157],"calculate":[158],"angles.":[160],"Finally,":[161],"test":[163],"results":[164],"show":[165],"that":[166],"method":[168],"effectively":[170],"identify":[171],"speaker's":[173],"position":[174],"class":[176],"it.":[179]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}