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4Â¥2017-05-26 11:34:50
fmy1980
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è¾è¾: ½ð±Ò+1, ¸ÐлÌṩ¼ìË÷ÐÅÏ¢£¡ 2012-12-14 09:57:16
è¾è¾: ½ð±Ò+1, ¸ÐлÌṩ¼ìË÷ÐÅÏ¢£¡ 2012-12-14 09:57:16
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Å££¬³ò×ÅÑÛºì 1. A lexicalized syntactic parsing model based on valence structure Yuan, Li-Chi (Jiangxi Key Laboratory of Date and Knowledge Engineering, School of Information Technology, Jiangxi University of Finance and Economics, Nanchang 330013, China) Source: Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology), v 43, n 5, p 1808-1813, May 2012 Language: Chinese Database: Compendex Abstract | Detailed | | | FULL TEXT LINKS 2. Vari-gram language model based on word clustering Yuan, Li-Chi (School of Information Technology, Jiangxi University of Finance and Economics, Nanchang 330013, China) Source: Journal of Central South University of Technology (English Edition), v 19, n 4, p 1057-1062, April 2012 Database: Compendex Abstract | Detailed | | | | FULL TEXT LINKS 3. A part-of-speech tagging method based on improved hidden Markov model Yuan, Li-Chi (Jiangxi Key Lab. of Data and Knowledge Engineering, School of Information Technology, Jiangxi University of Finance and Economics, Nanchang 330013, China) Source: Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology), v 43, n 8, p 3053-3057, August 2012 Language: Chinese Database: Compendex Abstract | Detailed | | | FULL TEXT LINKS 4. Statistical parsing with linguistic features Yuan, Li-Chi (School of Information Technology, Jiangxi University of Finance and Economics, Nanchang 330013, China) Source: Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology), v 43, n 3, p 986-991, March 2012 Language: Chinese Database: Compendex Abstract | Detailed | | | FULL TEXT LINKS 5. Improved hidden Markov model for speech recognition and POS tagging Yuan, Li-Chi (School of Information Technology, Jiangxi University of Finance and Economics, Nanchang 330013, China) Source: Journal of Central South University of Technology (English Edition), v 19, n 2, p 511-516, February 2012 Database: Compendex Abstract | Detailed | | | | FULL TEXT LINKS |

2Â¥2012-12-14 09:35:43
chuandanwei
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è¾è¾: ½ð±Ò+1, ¸ÐлӦÖú£¡ 2012-12-14 09:57:28
è¾è¾: ½ð±Ò+1, ¸ÐлӦÖú£¡ 2012-12-14 09:57:28
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SCI ¼ìË÷Çé¿ö£¨ºÃÏñ2012Ö»ÓÐÁ½Æª£© ±êÌâ: Vari-gram language model based on word clustering ×÷Õß: Yuan Li-chi À´Ô´³ö°æÎï: JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY ¾í: 19 ÆÚ: 4 Ò³: 1057-1062 DOI: 10.1007/s11771-012-1109-z ³ö°æÄê: APR 2012 ±»ÒýƵ´Î: 0 (À´×Ô Web of Science) Vari-gram language model based on word clustering ×÷Õß: Yuan, LC (Yuan Li-chi)1,2 À´Ô´³ö°æÎï: JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY ¾í: 19 ÆÚ: 4 Ò³: 1057-1062 DOI: 10.1007/s11771-012-1109-z ³ö°æÄê: APR 2012 ±»ÒýƵ´Î: 0 (À´×Ô Web of Science) ÒýÓõIJο¼ÎÄÏ×: 18 [ ²é¿´ Related Records ] ÒýÖ¤¹ØÏµÍ¼ ÕªÒª: Category-based statistic language model is an important method to solve the problem of sparse data. But there are two bottlenecks: 1) The problem of word clustering. It is hard to find a suitable clustering method with good performance and less computation. 2) Class-based method always loses the prediction ability to adapt the text in different domains. In order to solve above problems, a definition of word similarity by utilizing mutual information was presented. Based on word similarity, the definition of word set similarity was given. Experiments show that word clustering algorithm based on similarity is better than conventional greedy clustering method in speed and performance, and the perplexity is reduced from 283 to 218. At the same time, an absolute weighted difference method was presented and was used to construct vari-gram language model which has good prediction ability. The perplexity of vari-gram model is reduced from 234.65 to 219.14 on Chinese corpora, and is reduced from 195.56 to 184.25 on English corpora compared with category-based model. Èë²ØºÅ: WOS:000302249800026 ÎÄÏ×ÀàÐÍ: Article ÓïÖÖ: English ×÷Õ߹ؼü´Ê: word similarity; word clustering; statistical language model; vari-gram language model ͨѶ×÷ÕßµØÖ·: Yuan, LC (ͨѶ×÷Õß),Jiangxi Univ Finance & Econ, Sch Informat Technol, Nanchang 330013, Peoples R China. µØÖ·: 1. Jiangxi Univ Finance & Econ, Sch Informat Technol, Nanchang 330013, Peoples R China 2. Cent S Univ, Sch Informat Sci & Engn, Changsha 410083, Peoples R China µç×ÓÓʼþµØÖ·: yuanlichi@sohu.com ±êÌâ: Improved hidden Markov model for speech recognition and POS tagging ×÷Õß: Yuan Li-chi À´Ô´³ö°æÎï: JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY ¾í: 19 ÆÚ: 2 Ò³: 511-516 DOI: 10.1007/s11771-012-1033-2 ³ö°æÄê: FEB 2012 ±»ÒýƵ´Î: 0 (À´×Ô Web of Science) Improved hidden Markov model for speech recognition and POS tagging ×÷Õß: Yuan, LC (Yuan Li-chi)1,2 À´Ô´³ö°æÎï: JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY ¾í: 19 ÆÚ: 2 Ò³: 511-516 DOI: 10.1007/s11771-012-1033-2 ³ö°æÄê: FEB 2012 ±»ÒýƵ´Î: 0 (À´×Ô Web of Science) ÒýÓõIJο¼ÎÄÏ×: 26 [ ²é¿´ Related Records ] ÒýÖ¤¹ØÏµÍ¼ ÕªÒª: In order to overcome defects of the classical hidden Markov model (HMM), Markov family model (MFM), a new statistical model was proposed. Markov family model was applied to speech recognition and natural language processing. The speaker independently continuous speech recognition experiments and the part-of-speech tagging experiments show that Markov family model has higher performance than hidden Markov model. The precision is enhanced from 94.642% to 96.214% in the part-of-speech tagging experiments, and the work rate is reduced by 11.9% in the speech recognition experiments with respect to HMM baseline system. Èë²ØºÅ: WOS:000299928600030 ÎÄÏ×ÀàÐÍ: Article ÓïÖÖ: English ×÷Õ߹ؼü´Ê: hidden Markov model; Markov family model; speech recognition; part-of-speech tagging ͨѶ×÷ÕßµØÖ·: Yuan, LC (ͨѶ×÷Õß),Jiangxi Univ Finance & Econ, Sch Informat Technol, Nanchang 330013, Peoples R China. µØÖ·: 1. Jiangxi Univ Finance & Econ, Sch Informat Technol, Nanchang 330013, Peoples R China 2. Cent S Univ, Sch Informat Sci & Engn, Changsha 410083, Peoples R China µç×ÓÓʼþµØÖ·: yuanlichi@sohu.com |
3Â¥2012-12-14 09:49:48














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