{"id":"https://openalex.org/W1978526117","doi":"https://doi.org/10.1109/ccst.2011.6095946","title":"Matrix Covariance Estimation methods for robust Security Speech Recognition with under-resourced conditions","display_name":"Matrix Covariance Estimation methods for robust Security Speech Recognition with under-resourced conditions","publication_year":2011,"publication_date":"2011-10-01","ids":{"openalex":"https://openalex.org/W1978526117","doi":"https://doi.org/10.1109/ccst.2011.6095946","mag":"1978526117"},"language":"en","primary_location":{"id":"doi:10.1109/ccst.2011.6095946","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ccst.2011.6095946","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 Carnahan Conference on Security Technology","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/A5077780848","display_name":"Nora Barroso","orcid":"https://orcid.org/0000-0003-1172-0559"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"N. Barroso","raw_affiliation_strings":["Irunweb Enterprise, Irun, Spain","Irunweb Enterprise Auzolan 2B - 2 Irun, 23303 Basque Country"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Irunweb Enterprise, Irun, Spain","institution_ids":[]},{"raw_affiliation_string":"Irunweb Enterprise Auzolan 2B - 2 Irun, 23303 Basque Country","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054662528","display_name":"Karmele L\u00f3pez de Ipi\u00f1a","orcid":"https://orcid.org/0000-0002-2135-2393"},"institutions":[{"id":"https://openalex.org/I169108374","display_name":"University of the Basque Country","ror":"https://ror.org/000xsnr85","country_code":"ES","type":"education","lineage":["https://openalex.org/I169108374"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"K. Lopez de Ipina","raw_affiliation_strings":["University of the Basque Country, San Sebastian-Donostia, Spain","University of the Basque Country Plaza de Europa 1, Donostia 20008 Basque Country"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of the Basque Country, San Sebastian-Donostia, Spain","institution_ids":["https://openalex.org/I169108374"]},{"raw_affiliation_string":"University of the Basque Country Plaza de Europa 1, Donostia 20008 Basque Country","institution_ids":["https://openalex.org/I169108374"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076628911","display_name":"Carmen Hern\u00e1ndez","orcid":"https://orcid.org/0000-0002-6645-9880"},"institutions":[{"id":"https://openalex.org/I169108374","display_name":"University of the Basque Country","ror":"https://ror.org/000xsnr85","country_code":"ES","type":"education","lineage":["https://openalex.org/I169108374"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"C. Hernandez","raw_affiliation_strings":["University of the Basque Country, San Sebastian-Donostia, Spain","University of the Basque Country Plaza de Europa 1, Donostia 20008 Basque Country"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of the Basque Country, San Sebastian-Donostia, Spain","institution_ids":["https://openalex.org/I169108374"]},{"raw_affiliation_string":"University of the Basque Country Plaza de Europa 1, Donostia 20008 Basque Country","institution_ids":["https://openalex.org/I169108374"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5061947189","display_name":"Aitzol Ezeiza","orcid":"https://orcid.org/0000-0001-5060-9525"},"institutions":[{"id":"https://openalex.org/I169108374","display_name":"University of the Basque Country","ror":"https://ror.org/000xsnr85","country_code":"ES","type":"education","lineage":["https://openalex.org/I169108374"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"A. Ezeiza","raw_affiliation_strings":["University of the Basque Country, San Sebastian-Donostia, Spain","University of the Basque Country Plaza de Europa 1, Donostia 20008 Basque Country"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of the Basque Country, San Sebastian-Donostia, Spain","institution_ids":["https://openalex.org/I169108374"]},{"raw_affiliation_string":"University of the Basque Country Plaza de Europa 1, Donostia 20008 Basque Country","institution_ids":["https://openalex.org/I169108374"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.08318784,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"37","issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10201","display_name":"Speech Recognition and Synthesis","score":0.9993000030517578,"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/T10201","display_name":"Speech Recognition and Synthesis","score":0.9993000030517578,"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/T11309","display_name":"Music and Audio Processing","score":0.9965000152587891,"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"}},{"id":"https://openalex.org/T10181","display_name":"Natural Language Processing Techniques","score":0.9866999983787537,"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":0.8298746347427368},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.5780004262924194},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.5095715522766113},{"id":"https://openalex.org/keywords/covariance-matrix","display_name":"Covariance matrix","score":0.5056993961334229},{"id":"https://openalex.org/keywords/selection","display_name":"Selection (genetic algorithm)","score":0.4830487370491028},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.45592665672302246},{"id":"https://openalex.org/keywords/the-internet","display_name":"The Internet","score":0.44657766819000244},{"id":"https://openalex.org/keywords/ontology","display_name":"Ontology","score":0.43400418758392334},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.336971253156662},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.11075323820114136},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.08126363158226013}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8298746347427368},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.5780004262924194},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.5095715522766113},{"id":"https://openalex.org/C185142706","wikidata":"https://www.wikidata.org/wiki/Q1134404","display_name":"Covariance matrix","level":2,"score":0.5056993961334229},{"id":"https://openalex.org/C81917197","wikidata":"https://www.wikidata.org/wiki/Q628760","display_name":"Selection (genetic algorithm)","level":2,"score":0.4830487370491028},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.45592665672302246},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.44657766819000244},{"id":"https://openalex.org/C25810664","wikidata":"https://www.wikidata.org/wiki/Q44325","display_name":"Ontology","level":2,"score":0.43400418758392334},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.336971253156662},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.11075323820114136},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.08126363158226013},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","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:10.1109/ccst.2011.6095946","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ccst.2011.6095946","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 Carnahan Conference on Security Technology","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education","score":0.7300000190734863}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W47568227","https://openalex.org/W92696887","https://openalex.org/W153611040","https://openalex.org/W2046649434","https://openalex.org/W2105354660","https://openalex.org/W2122780641","https://openalex.org/W2134262590","https://openalex.org/W2136451612","https://openalex.org/W2136809053","https://openalex.org/W2140409019","https://openalex.org/W2141820854","https://openalex.org/W2166012115","https://openalex.org/W3150056382","https://openalex.org/W4238240379","https://openalex.org/W6601939441","https://openalex.org/W6603840126","https://openalex.org/W6606297130","https://openalex.org/W6678535872","https://openalex.org/W6684170991"],"related_works":["https://openalex.org/W3203142394","https://openalex.org/W4302615923","https://openalex.org/W2003333417","https://openalex.org/W2542937328","https://openalex.org/W1974101135","https://openalex.org/W2351061015","https://openalex.org/W2017509870","https://openalex.org/W4360952157","https://openalex.org/W4220731478","https://openalex.org/W2069409835"],"abstract_inverted_index":{"The":[0,23,81],"long":[1],"term":[2],"goal":[3],"of":[4,10,25,44,68,104],"our":[5],"project":[6],"is":[7,63],"the":[8,42,66,98,102],"development":[9,24,43],"robust":[11],"Security":[12],"Speech":[13,20],"Recognition":[14,21],"systems":[15,27],"are":[16,52],"based":[17,116],"on":[18,117],"Automatic":[19],"methodologies.":[22],"ASR":[26],"involves":[28],"dealing":[29],"with":[30,72,87],"issues":[31],"such":[32],"as":[33],"Acoustic":[34],"Phonetic":[35],"Decoding":[36],"(APD),":[37],"Language":[38,46],"Modelling":[39],"(LM)":[40],"or":[41],"appropriated":[45,69],"Resources":[47],"(LR).":[48],"Thus":[49],"these":[50],"applications":[51],"generally":[53],"very":[54,58],"language-dependent":[55],"and":[56,74,121],"require":[57],"large":[59],"resources.":[60],"This":[61],"work":[62,82],"focused":[64],"to":[65,78,96],"selection":[67],"sub-word":[70],"units":[71],"under-resourced":[73],"noisy":[75],"conditions":[76],"oriented":[77],"security":[79],"tasks.":[80],"has":[83,106],"been":[84],"carried":[85],"out":[86],"a":[88],"trilingual":[89],"internet":[90],"radio":[91],"database.":[92],"Thus,":[93],"in":[94,107],"order":[95],"decrease":[97],"negative":[99],"impact":[100],"that":[101],"lack":[103],"resources":[105],"this":[108],"issue":[109],"we":[110],"apply":[111],"several":[112],"data":[113],"optimization":[114],"methodologies":[115],"Matrix":[118],"Covariance":[119],"Estimation":[120],"Ontology-based":[122],"approaches.":[123]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}