Classification of Overlapped Audio Events Based on AT, PLSA, and the Combination of Them

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dc.contributor.authorLeng, Yan
dc.contributor.authorSun, Chengli
dc.contributor.authorCheng, Chuanfu
dc.contributor.authorXu, Xinyan
dc.contributor.authorLi, Si
dc.contributor.authorWan, Honglin
dc.contributor.authorFang, Jing
dc.contributor.authorLi, Dengwang
dc.coverage.issue2cs
dc.coverage.volume24cs
dc.date.accessioned2015-06-29T13:04:50Z
dc.date.available2015-06-29T13:04:50Z
dc.date.issued2015-06cs
dc.description.abstractAudio event classification, as an important part of Computational Auditory Scene Analysis, has attracted much attention. Currently, the classification technology is mature enough to classify isolated audio events accurately, but for overlapped audio events, it performs much worse. While in real life, most audio documents would have certain percentage of overlaps, and so the overlap classification problem is an important part of audio classification. Nowadays, the work on overlapped audio event classification is still scarce, and most existing overlap classification systems can only recognize one audio event for an overlap. In this paper, in order to deal with overlaps, we innovatively introduce the author-topic (AT) model which was first proposed for text analysis into audio classification, and innovatively combine it with PLSA (Probabilistic Latent Semantic Analysis). We propose 4 systems, i.e. AT, PLSA, AT-PLSA and PLSA-AT, to classify overlaps. The 4 proposed systems have the ability to recognize two or more audio events for an overlap. The experimental results show that the 4 systems perform well in classifying overlapped audio events, whether it is the overlap in training set or the overlap out of training set. Also they perform well in classifying isolated audio events.en
dc.formattextcs
dc.format.extent593-603cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2015 vol. 24, č. 2, s. 593-603. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2015.0593en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/41862
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2015/15_02_0593_0603.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectAudio event classificationen
dc.subjectauthor-topic modelen
dc.subjectPLSAen
dc.subjectoverlapped audio eventen
dc.subjectisolated audio eventen
dc.titleClassification of Overlapped Audio Events Based on AT, PLSA, and the Combination of Themen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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