Using SVM as Back-End Classifier for Language Identification
Robust automatic language identification (LID) is a task of identifying the language from a short utterance spoken by an unknown speaker. One of the mainstream approaches named parallel phone recognition language modeling (PPRLM) has achieved a very good performance. The log-likelihood radio (LLR) a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2008-11-01
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| Series: | EURASIP Journal on Audio, Speech, and Music Processing |
| Online Access: | http://dx.doi.org/10.1155/2008/674859 |
| _version_ | 1818517339437531136 |
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| author | Yonghong Yan Ping Lu Ming Li Hongbin Suo |
| author_facet | Yonghong Yan Ping Lu Ming Li Hongbin Suo |
| author_sort | Yonghong Yan |
| collection | DOAJ |
| description | Robust automatic language identification (LID) is a task of identifying the language from a short utterance spoken by an unknown speaker. One of the mainstream approaches named parallel phone recognition language modeling (PPRLM) has achieved a very good performance. The log-likelihood radio (LLR) algorithm has been proposed recently to normalize posteriori probabilities which are the outputs of back-end classifiers in PPRLM systems. Support vector machine (SVM) with radial basis function (RBF) kernel is adopted as the back-end classifier. But for the conventional SVM classifier, the output is not probability. We use a pair-wise posterior probability estimation (PPPE) algorithm to calibrate the output of each classifier. The proposed approaches are evaluated on the 2005 National Institute of Standards and Technology (NIST). Language recognition evaluation databases and experiments show that the systems described in this paper produce comparable results to the existing arts. |
| first_indexed | 2024-12-11T00:54:55Z |
| format | Article |
| id | doaj.art-d43b81f29f2c44799afdbbef3f560c79 |
| institution | Directory Open Access Journal |
| issn | 1687-4714 1687-4722 |
| language | English |
| last_indexed | 2024-12-11T00:54:55Z |
| publishDate | 2008-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Audio, Speech, and Music Processing |
| spelling | doaj.art-d43b81f29f2c44799afdbbef3f560c792022-12-22T01:26:31ZengSpringerOpenEURASIP Journal on Audio, Speech, and Music Processing1687-47141687-47222008-11-01200810.1155/2008/674859Using SVM as Back-End Classifier for Language IdentificationYonghong YanPing LuMing LiHongbin SuoRobust automatic language identification (LID) is a task of identifying the language from a short utterance spoken by an unknown speaker. One of the mainstream approaches named parallel phone recognition language modeling (PPRLM) has achieved a very good performance. The log-likelihood radio (LLR) algorithm has been proposed recently to normalize posteriori probabilities which are the outputs of back-end classifiers in PPRLM systems. Support vector machine (SVM) with radial basis function (RBF) kernel is adopted as the back-end classifier. But for the conventional SVM classifier, the output is not probability. We use a pair-wise posterior probability estimation (PPPE) algorithm to calibrate the output of each classifier. The proposed approaches are evaluated on the 2005 National Institute of Standards and Technology (NIST). Language recognition evaluation databases and experiments show that the systems described in this paper produce comparable results to the existing arts.http://dx.doi.org/10.1155/2008/674859 |
| spellingShingle | Yonghong Yan Ping Lu Ming Li Hongbin Suo Using SVM as Back-End Classifier for Language Identification EURASIP Journal on Audio, Speech, and Music Processing |
| title | Using SVM as Back-End Classifier for Language Identification |
| title_full | Using SVM as Back-End Classifier for Language Identification |
| title_fullStr | Using SVM as Back-End Classifier for Language Identification |
| title_full_unstemmed | Using SVM as Back-End Classifier for Language Identification |
| title_short | Using SVM as Back-End Classifier for Language Identification |
| title_sort | using svm as back end classifier for language identification |
| url | http://dx.doi.org/10.1155/2008/674859 |
| work_keys_str_mv | AT yonghongyan usingsvmasbackendclassifierforlanguageidentification AT pinglu usingsvmasbackendclassifierforlanguageidentification AT mingli usingsvmasbackendclassifierforlanguageidentification AT hongbinsuo usingsvmasbackendclassifierforlanguageidentification |