{"id":"https://openalex.org/W2077001174","doi":"https://doi.org/10.1145/2072298.2072409","title":"Scalable mobile video question-answering system with locally aggregated descriptors and random projection","display_name":"Scalable mobile video question-answering system with locally aggregated descriptors and random projection","publication_year":2011,"publication_date":"2011-11-28","ids":{"openalex":"https://openalex.org/W2077001174","doi":"https://doi.org/10.1145/2072298.2072409","mag":"2077001174"},"language":"en","primary_location":{"id":"doi:10.1145/2072298.2072409","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2072298.2072409","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 19th ACM international conference on Multimedia","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/A5037777030","display_name":"Guan-Long Wu","orcid":null},"institutions":[{"id":"https://openalex.org/I16733864","display_name":"National Taiwan University","ror":"https://ror.org/05bqach95","country_code":"TW","type":"education","lineage":["https://openalex.org/I16733864"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Guan-Long Wu","raw_affiliation_strings":["National Taiwan University, Taipei, Taiwan Roc","National Taiwan University, Taipei, Taiwan, ROC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Taiwan University, Taipei, Taiwan Roc","institution_ids":["https://openalex.org/I16733864"]},{"raw_affiliation_string":"National Taiwan University, Taipei, Taiwan, ROC","institution_ids":["https://openalex.org/I16733864"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103041770","display_name":"Yu-Chuan Su","orcid":"https://orcid.org/0000-0002-2711-6738"},"institutions":[{"id":"https://openalex.org/I16733864","display_name":"National Taiwan University","ror":"https://ror.org/05bqach95","country_code":"TW","type":"education","lineage":["https://openalex.org/I16733864"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Yu-Chuan Su","raw_affiliation_strings":["National Taiwan University, Taipei, Taiwan Roc","National Taiwan University, Taipei, Taiwan, ROC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Taiwan University, Taipei, Taiwan Roc","institution_ids":["https://openalex.org/I16733864"]},{"raw_affiliation_string":"National Taiwan University, Taipei, Taiwan, ROC","institution_ids":["https://openalex.org/I16733864"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012397831","display_name":"Tzu-Hsuan Chiu","orcid":null},"institutions":[{"id":"https://openalex.org/I16733864","display_name":"National Taiwan University","ror":"https://ror.org/05bqach95","country_code":"TW","type":"education","lineage":["https://openalex.org/I16733864"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Tzu-Hsuan Chiu","raw_affiliation_strings":["National Taiwan University, Taipei, Taiwan Roc","National Taiwan University, Taipei, Taiwan, ROC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Taiwan University, Taipei, Taiwan Roc","institution_ids":["https://openalex.org/I16733864"]},{"raw_affiliation_string":"National Taiwan University, Taipei, Taiwan, ROC","institution_ids":["https://openalex.org/I16733864"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067241596","display_name":"Liang-Chi Hsieh","orcid":"https://orcid.org/0009-0002-6513-984X"},"institutions":[{"id":"https://openalex.org/I16733864","display_name":"National Taiwan University","ror":"https://ror.org/05bqach95","country_code":"TW","type":"education","lineage":["https://openalex.org/I16733864"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Liang-Chi Hsieh","raw_affiliation_strings":["National Taiwan University, Taipei, Taiwan Roc","National Taiwan University, Taipei, Taiwan, ROC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Taiwan University, Taipei, Taiwan Roc","institution_ids":["https://openalex.org/I16733864"]},{"raw_affiliation_string":"National Taiwan University, Taipei, Taiwan, ROC","institution_ids":["https://openalex.org/I16733864"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5043898632","display_name":"Winston H. Hsu","orcid":"https://orcid.org/0000-0002-3330-0638"},"institutions":[{"id":"https://openalex.org/I16733864","display_name":"National Taiwan University","ror":"https://ror.org/05bqach95","country_code":"TW","type":"education","lineage":["https://openalex.org/I16733864"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Winston H. Hsu","raw_affiliation_strings":["National Taiwan University, Taipei, Taiwan Roc","National Taiwan University, Taipei, Taiwan, ROC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Taiwan University, Taipei, Taiwan Roc","institution_ids":["https://openalex.org/I16733864"]},{"raw_affiliation_string":"National Taiwan University, Taipei, Taiwan, ROC","institution_ids":["https://openalex.org/I16733864"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.2617,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.59107968,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"647","last_page":"650"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11714","display_name":"Multimodal Machine Learning Applications","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T11714","display_name":"Multimodal Machine Learning Applications","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9980999827384949,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12072","display_name":"Machine Learning and Algorithms","score":0.9930999875068665,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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":0.8362549543380737},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.6234372854232788},{"id":"https://openalex.org/keywords/semantics","display_name":"Semantics (computer science)","score":0.5838865637779236},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.5487972497940063},{"id":"https://openalex.org/keywords/histogram","display_name":"Histogram","score":0.5179038047790527},{"id":"https://openalex.org/keywords/random-projection","display_name":"Random projection","score":0.5171470046043396},{"id":"https://openalex.org/keywords/projection","display_name":"Projection (relational algebra)","score":0.4995298385620117},{"id":"https://openalex.org/keywords/video-tracking","display_name":"Video tracking","score":0.49727681279182434},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4875342547893524},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.41630157828330994},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3675788342952728},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.24466586112976074},{"id":"https://openalex.org/keywords/object","display_name":"Object (grammar)","score":0.21341350674629211},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.1561584174633026}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8362549543380737},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6234372854232788},{"id":"https://openalex.org/C184337299","wikidata":"https://www.wikidata.org/wiki/Q1437428","display_name":"Semantics (computer science)","level":2,"score":0.5838865637779236},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.5487972497940063},{"id":"https://openalex.org/C53533937","wikidata":"https://www.wikidata.org/wiki/Q185020","display_name":"Histogram","level":3,"score":0.5179038047790527},{"id":"https://openalex.org/C2777036070","wikidata":"https://www.wikidata.org/wiki/Q18393452","display_name":"Random projection","level":2,"score":0.5171470046043396},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.4995298385620117},{"id":"https://openalex.org/C202474056","wikidata":"https://www.wikidata.org/wiki/Q1931635","display_name":"Video tracking","level":3,"score":0.49727681279182434},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4875342547893524},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.41630157828330994},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3675788342952728},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.24466586112976074},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.21341350674629211},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.1561584174633026},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","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},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2072298.2072409","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2072298.2072409","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 19th ACM international conference on Multimedia","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W19010742","https://openalex.org/W1585247172","https://openalex.org/W1996931099","https://openalex.org/W2043539602"],"related_works":["https://openalex.org/W2064168458","https://openalex.org/W4287750422","https://openalex.org/W2592293938","https://openalex.org/W4221157392","https://openalex.org/W3197970974","https://openalex.org/W2033523051","https://openalex.org/W4385436225","https://openalex.org/W2794358477","https://openalex.org/W2981022037","https://openalex.org/W4324290738"],"abstract_inverted_index":{"We":[0,53],"present":[1],"a":[2,40,44,55,83,105],"scalable":[3],"mobile":[4],"video":[5,34,41,58,79],"Question-Answering":[6],"system":[7,38],"with":[8,63,109],"locally":[9],"aggregated":[10],"descriptors":[11],"and":[12,31,46],"random":[13,95],"projection":[14,96],"using":[15],"user-generated":[16],"videos":[17,66],"all":[18],"around":[19],"the":[20],"world":[21],"for":[22],"ACM":[23],"Multimedia":[24],"2011":[25],"Technicolor":[26],"challenge:":[27],"\"precise":[28],"event":[29],"recognition":[30],"description":[32],"from":[33],"excerpts.\"":[35],"Our":[36],"proposed":[37,70,78],"takes":[39],"excerpt":[42],"as":[43],"query":[45],"explores":[47],"its":[48],"canonical":[49],"semantics":[50],"of":[51],"that.":[52],"collect":[54],"public":[56],"events":[57],"dataset":[59],"containing":[60],"7":[61],"topics":[62],"1963":[64],"YouTube":[65],"to":[67],"evaluate":[68],"our":[69,77],"system.":[71],"The":[72,91],"experiment":[73],"results":[74],"show":[75],"that":[76],"feature":[80],"representation":[81],"outperforms":[82],"state-of-the-art":[84],"near-duplicate":[85],"retrieval":[86],"based":[87],"on":[88],"color":[89],"histogram.":[90],"signature":[92],"generated":[93],"by":[94],"not":[97],"only":[98],"ensures":[99],"real-time":[100],"efficiency":[101],"but":[102],"also":[103],"achieves":[104],"competitive":[106],"MAP":[107],"performance":[108],"original":[110],"feature.":[111]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
