{"id":"https://openalex.org/W201749652","doi":"https://doi.org/10.21437/interspeech.2006-88","title":"Recognition of classroom lectures in european portuguese","display_name":"Recognition of classroom lectures in european portuguese","publication_year":2006,"publication_date":"2006-09-17","ids":{"openalex":"https://openalex.org/W201749652","doi":"https://doi.org/10.21437/interspeech.2006-88","mag":"201749652"},"language":"en","primary_location":{"id":"doi:10.21437/interspeech.2006-88","is_oa":false,"landing_page_url":"https://doi.org/10.21437/interspeech.2006-88","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Interspeech 2006","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/A5054590402","display_name":"Isabel Trancoso","orcid":"https://orcid.org/0000-0001-5874-6313"},"institutions":[{"id":"https://openalex.org/I121345201","display_name":"Instituto de Engenharia de Sistemas e Computadores Investiga\u00e7\u00e3o e Desenvolvimento","ror":"https://ror.org/04mqy3p58","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I121345201","https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Isabel Trancoso","raw_affiliation_strings":["Inesc-ID"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Inesc-ID","institution_ids":["https://openalex.org/I121345201"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086910906","display_name":"Ricardo Rodrigues Nunes","orcid":"https://orcid.org/0000-0002-7557-2121"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ricardo Nunes","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047169473","display_name":"Lu\u00ed\u00ads Neves","orcid":"https://orcid.org/0000-0001-5034-8417"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lu\u00eds Neves","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112569283","display_name":"C\u00e9u Viana","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"C\u00e9u Viana","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045429958","display_name":"Helena Moniz","orcid":"https://orcid.org/0000-0003-0900-6938"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Helena Moniz","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021056932","display_name":"Diamantino Caseiro","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Diamantino Caseiro","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5038014740","display_name":"Ana Isabel Mata","orcid":"https://orcid.org/0000-0002-2830-4036"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ana Isabel Mata","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.4427,"has_fulltext":false,"cited_by_count":32,"citation_normalized_percentile":{"value":0.89111536,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"paper 1524","last_page":"Mon2A2O.3"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12031","display_name":"Speech and dialogue systems","score":0.9986000061035156,"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"}},"topics":[{"id":"https://openalex.org/T12031","display_name":"Speech and dialogue systems","score":0.9986000061035156,"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"}},{"id":"https://openalex.org/T10201","display_name":"Speech Recognition and Synthesis","score":0.9922000169754028,"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"}},{"id":"https://openalex.org/T10181","display_name":"Natural Language Processing Techniques","score":0.9876000285148621,"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/adaptation","display_name":"Adaptation (eye)","score":0.7811799049377441},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7770706415176392},{"id":"https://openalex.org/keywords/european-portuguese","display_name":"European Portuguese","score":0.7526657581329346},{"id":"https://openalex.org/keywords/vocabulary","display_name":"Vocabulary","score":0.7235645651817322},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.6645968556404114},{"id":"https://openalex.org/keywords/word-error-rate","display_name":"Word error rate","score":0.6585290431976318},{"id":"https://openalex.org/keywords/portuguese","display_name":"Portuguese","score":0.6393462419509888},{"id":"https://openalex.org/keywords/domain-adaptation","display_name":"Domain adaptation","score":0.5374956727027893},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.48636773228645325},{"id":"https://openalex.org/keywords/style","display_name":"Style (visual arts)","score":0.4757494628429413},{"id":"https://openalex.org/keywords/error-analysis","display_name":"Error analysis","score":0.4404154419898987},{"id":"https://openalex.org/keywords/word","display_name":"Word (group theory)","score":0.4176381528377533},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4151461124420166},{"id":"https://openalex.org/keywords/linguistics","display_name":"Linguistics","score":0.3179430663585663},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.14858770370483398},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.07618427276611328},{"id":"https://openalex.org/keywords/history","display_name":"History","score":0.06790634989738464}],"concepts":[{"id":"https://openalex.org/C139807058","wikidata":"https://www.wikidata.org/wiki/Q352374","display_name":"Adaptation (eye)","level":2,"score":0.7811799049377441},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7770706415176392},{"id":"https://openalex.org/C2780939345","wikidata":"https://www.wikidata.org/wiki/Q922399","display_name":"European Portuguese","level":3,"score":0.7526657581329346},{"id":"https://openalex.org/C2777601683","wikidata":"https://www.wikidata.org/wiki/Q6499736","display_name":"Vocabulary","level":2,"score":0.7235645651817322},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.6645968556404114},{"id":"https://openalex.org/C40969351","wikidata":"https://www.wikidata.org/wiki/Q3516228","display_name":"Word error rate","level":2,"score":0.6585290431976318},{"id":"https://openalex.org/C35219183","wikidata":"https://www.wikidata.org/wiki/Q5146","display_name":"Portuguese","level":2,"score":0.6393462419509888},{"id":"https://openalex.org/C2776434776","wikidata":"https://www.wikidata.org/wiki/Q19246213","display_name":"Domain adaptation","level":3,"score":0.5374956727027893},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.48636773228645325},{"id":"https://openalex.org/C2776445246","wikidata":"https://www.wikidata.org/wiki/Q1792644","display_name":"Style (visual arts)","level":2,"score":0.4757494628429413},{"id":"https://openalex.org/C3018824978","wikidata":"https://www.wikidata.org/wiki/Q2894891","display_name":"Error analysis","level":2,"score":0.4404154419898987},{"id":"https://openalex.org/C90805587","wikidata":"https://www.wikidata.org/wiki/Q10944557","display_name":"Word (group theory)","level":2,"score":0.4176381528377533},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4151461124420166},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.3179430663585663},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.14858770370483398},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.07618427276611328},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.06790634989738464},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.0},{"id":"https://openalex.org/C169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","level":1,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C95623464","wikidata":"https://www.wikidata.org/wiki/Q1096149","display_name":"Classifier (UML)","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.21437/interspeech.2006-88","is_oa":false,"landing_page_url":"https://doi.org/10.21437/interspeech.2006-88","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Interspeech 2006","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.132.6299","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.132.6299","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.inesc-id.pt/ficheiros/publicacoes/3410.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4","score":0.8299999833106995}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W628729","https://openalex.org/W168261181","https://openalex.org/W193643080","https://openalex.org/W642141462","https://openalex.org/W1512763074","https://openalex.org/W1579609743","https://openalex.org/W1755506194","https://openalex.org/W2086891622","https://openalex.org/W2098152775","https://openalex.org/W2156494778","https://openalex.org/W2169058332"],"related_works":["https://openalex.org/W2479207534","https://openalex.org/W4377968335","https://openalex.org/W3083760992","https://openalex.org/W2490883683","https://openalex.org/W4229756535","https://openalex.org/W2182374716","https://openalex.org/W2160083603","https://openalex.org/W2228714359","https://openalex.org/W4254443907","https://openalex.org/W2486211475"],"abstract_inverted_index":{"Classroom":[0],"lectures":[1],"may":[2,13],"be":[3,14],"very":[4,15,21,86],"challenging":[5],"for":[6,30,44,57,60],"automatic":[7],"speech":[8,97,109],"recognizers,":[9],"because":[10],"the":[11,18,42,47,51,73,80,92],"vocabulary":[12],"specific":[16,48],"and":[17,56,91],"speaking":[19],"style":[20],"spontaneous.":[22],"Our":[23],"first":[24],"experiments":[25],"using":[26],"a":[27],"recognizer":[28],"trained":[29],"Broadcast":[31],"News":[32],"resulted":[33],"in":[34,69,99],"word":[35],"error":[36,81],"rates":[37],"near":[38],"60%,":[39],"clearly":[40],"confirming":[41],"need":[43],"adaptation":[45,76,89],"to":[46,83],"topic":[49],"of":[50,95],"lectures,":[52],"on":[53],"one":[54],"hand,":[55],"better":[58],"strategies":[59],"handling":[61],"spontaneous":[62,96,108],"speech.":[63],"This":[64],"paper":[65],"describes":[66],"our":[67],"efforts":[68],"these":[70],"two":[71],"directions:":[72],"different":[74],"domain":[75],"steps":[77],"that":[78],"lowered":[79],"rate":[82],"45%,":[84],"with":[85],"little":[87],"transcribed":[88],"material,":[90],"exploratory":[93],"study":[94],"phenomena":[98],"European":[100],"Portuguese,":[101],"namely":[102],"concerning":[103],"filled":[104],"pauses.":[105],"Index":[106],"Terms:":[107],"recognition,":[110],"Portuguese.":[111],"1.":[112]},"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":3}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}
