手法を比較
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| 半教師ありNMFトピックモデル× | LDAトピックモデル× | |
|---|---|---|
| 分野 | 深層学習 | 深層学習 |
| 系統 | Machine learning | Machine learning |
| 提唱年≠ | 2001 (NMF); semi-supervised variants from ~2010s | 2003 |
| 提唱者≠ | Lee & Seung (NMF); semi-supervised extensions by Jagarlamudi et al. and others | Blei, D. M., Ng, A. Y., & Jordan, M. I. |
| 種類≠ | Matrix factorization with supervision | Probabilistic generative topic model |
| 原典≠ | Lee, D. D., & Seung, H. S. (2001). Algorithms for non-negative matrix factorization. Advances in Neural Information Processing Systems, 13, 556–562. link ↗ | Blei, D. M., Ng, A. Y., & Jordan, M. I. (2003). Latent Dirichlet Allocation. Journal of Machine Learning Research, 3, 993–1022. link ↗ |
| 別名 | SS-NMF, guided NMF, constrained NMF topic model, seed-guided NMF | LDA, Latent Dirichlet Allocation, LDA Topic Modeling, Dirichlet Topic Model |
| 関連≠ | 6 | 5 |
| 概要≠ | Semi-supervised Non-negative Matrix Factorization (NMF) Topic Model extends unsupervised NMF by incorporating user-provided seed words or label constraints to steer discovered topics toward domain-relevant themes. It factorizes a document-term matrix into interpretable non-negative components while respecting lexical priors, yielding coherent, application-aligned topics even from modest corpora. | Latent Dirichlet Allocation (LDA) is a probabilistic generative model introduced by Blei, Ng, and Jordan in 2003 that discovers hidden thematic structure in large text collections by representing each document as a mixture of latent topics and each topic as a probability distribution over vocabulary words. |
| ScholarGateデータセット ↗ |
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