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| 潜在的ディリクレ配分法 (LDA)× | K平均法クラスタリング× | |
|---|---|---|
| 分野 | 機械学習 | 機械学習 |
| 系統≠ | Latent structure | Machine learning |
| 提唱年≠ | 2003 | 1967 |
| 提唱者≠ | Blei, D. M.; Ng, A. Y.; Jordan, M. I. | MacQueen, J. |
| 種類≠ | Generative probabilistic topic model (three-level hierarchical Bayesian) | Partitional clustering (centroid-based) |
| 原典≠ | Blei, D. M., Ng, A. Y., & Jordan, M. I. (2003). Latent Dirichlet allocation. Journal of Machine Learning Research, 3, 993–1022. DOI ↗ | MacQueen, J. (1967). Some Methods for Classification and Analysis of Multivariate Observations. Proceedings of the 5th Berkeley Symposium on Mathematical Statistics and Probability, 1, 281–297. link ↗ |
| 別名≠ | LDA, topic model, Blei-Ng-Jordan model, probabilistic topic modeling | K-Ortalamalar Kümeleme, k-ortalamalar kümeleme, k-means, centroid clustering |
| 関連 | 3 | 3 |
| 概要≠ | Latent Dirichlet Allocation (LDA) is a generative probabilistic model for collections of discrete data, introduced by Blei, Ng, and Jordan in 2003. It treats each document as a mixture of latent topics and each topic as a probability distribution over words, enabling unsupervised discovery of thematic structure across large text corpora. It is one of the most cited papers in machine learning and natural language processing. | K-Means Clustering is a centroid-based partitional clustering algorithm, traced to J. MacQueen in 1967, that splits data into k clusters by assigning each observation to its nearest cluster centre. It is widely used for marketing segmentation, customer grouping, and exploratory analysis. |
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