| Presentation | 2015-09-15 Improvement of nonnegative matrix factorization for probabilistic latent semantic analysis Toshio Uchiyama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Nonnegative Matrix Factorization (NMF) is equivalent to PLSA (Probabilistic Latent Semantic Analysis), when it uses generarized KL divergence as target function. This paper proposes a novel method for initializing base matrix using smoothing to improve algorithms for NMF and PLSA. It also shows that perplexity of training data and test data are correlated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | NMF(Nonnegative Matrix Factorization) / competitive learning / clustering / topic model / PLSA |
| Paper # | PRMU2015-83,IBISML2015-43 |
| Date of Issue | 2015-09-07 (PRMU, IBISML) |
| Conference Information | |
| Committee | PRMU / IBISML / IPSJ-CVIM |
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| Conference Date | 2015/9/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Eisaku Maeda(NTT) / Takashi Washio(Osaka Univ.) |
| Vice Chair | Shuji Senda(NEC) / Seiichi Uchida(Kyushu Univ.) / Kenji Fukumizu(ISM) / Masashi Sugiyama(Tokyo Inst. of Tech.) |
| Secretary | Shuji Senda(Mie Univ.) / Seiichi Uchida(DENSO IT Lab.) / Kenji Fukumizu(ISM) / Masashi Sugiyama(Kyoto Univ.) |
| Assistant | Kazuaki Kondo(Kyoto Univ.) / Akisato Kimura(NTT) / Koji Tsuda(Univ. of Tokyo) / Hisashi Kashima(Kyoto Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Pattern Recognition and Media Understanding / Technical Committee on Infomation-Based Induction Sciences and Machine Learning / Special Interest Group on Computer Vision and Image Media |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement of nonnegative matrix factorization for probabilistic latent semantic analysis |
| Sub Title (in English) | |
| Keyword(1) | NMF(Nonnegative Matrix Factorization) |
| Keyword(2) | competitive learning |
| Keyword(3) | clustering |
| Keyword(4) | topic model |
| Keyword(5) | PLSA |
| 1st Author's Name | Toshio Uchiyama |
| 1st Author's Affiliation | Hokkaido Information University(HIU) |
| Date | 2015-09-15 |
| Paper # | PRMU2015-83,IBISML2015-43 |
| Volume (vol) | vol.115 |
| Number (no) | PRMU-224,IBISML-225 |
| Page | pp.pp.117-122(PRMU), pp.117-122(IBISML), |
| #Pages | 6 |
| Date of Issue | 2015-09-07 (PRMU, IBISML) |