nzw0301 / Lightlda
fast sampling algorithm based on CGS
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LightLDA.py
This repo is python reimplementation of lightLDA.
LightLDA is a topic scalable latent dirichlet allocation (LDA) algorithm that is proposed in WWW paper.
Examples
$ python lightlda
# Word distributions per latent class
## φ of latent class of 0
word: probability
安原絵麻: 0.346
SHIROBAKO: 0.266
万策尽きた: 0.161
佳村はるか: 0.108
武蔵野: 0.108
城ヶ崎美嘉: 0.003
デレマス: 0.003
城ヶ崎莉嘉: 0.003
カブトムシ: 0.003
## φ of latent class of 1
word: probability
城ヶ崎美嘉: 0.357
デレマス: 0.239
佳村はるか: 0.180
城ヶ崎莉嘉: 0.121
カブトムシ: 0.091
安原絵麻: 0.003
SHIROBAKO: 0.003
万策尽きた: 0.003
武蔵野: 0.003
# Topic distributions per document
## Topic information of document 0
Propotion of topics
topic: θ_{document_id, latent_class}
0: 0.001
1: 0.999
Assigned latent class per word
word: latent class
城ヶ崎美嘉: 1
城ヶ崎美嘉: 1
城ヶ崎美嘉: 1
城ヶ崎美嘉: 1
デレマス: 1
デレマス: 1
佳村はるか: 1
佳村はるか: 1
佳村はるか: 1
--------------
## Topic information of document 1
Propotion of topics
topic: θ_{document_id, latent_class}
0: 0.001
1: 0.999
Assigned latent class per word
word: latent class
城ヶ崎美嘉: 1
城ヶ崎美嘉: 1
城ヶ崎美嘉: 1
城ヶ崎美嘉: 1
城ヶ崎美嘉: 1
城ヶ崎美嘉: 1
佳村はるか: 1
デレマス: 1
デレマス: 1
城ヶ崎莉嘉: 1
城ヶ崎莉嘉: 1
カブトムシ: 1
--------------
## Topic information of document 2
Propotion of topics
topic: θ_{document_id, latent_class}
0: 0.001
1: 0.999
Assigned latent class per word
word: latent class
城ヶ崎美嘉: 1
城ヶ崎美嘉: 1
佳村はるか: 1
佳村はるか: 1
デレマス: 1
デレマス: 1
デレマス: 1
デレマス: 1
城ヶ崎莉嘉: 1
城ヶ崎莉嘉: 1
カブトムシ: 1
カブトムシ: 1
--------------
## Topic information of document 3
Propotion of topics
topic: θ_{document_id, latent_class}
0: 0.999
1: 0.001
Assigned latent class per word
word: latent class
安原絵麻: 0
安原絵麻: 0
安原絵麻: 0
佳村はるか: 0
佳村はるか: 0
SHIROBAKO: 0
SHIROBAKO: 0
万策尽きた: 0
万策尽きた: 0
--------------
## Topic information of document 4
Propotion of topics
topic: θ_{document_id, latent_class}
0: 0.999
1: 0.001
Assigned latent class per word
word: latent class
安原絵麻: 0
安原絵麻: 0
安原絵麻: 0
佳村はるか: 0
SHIROBAKO: 0
SHIROBAKO: 0
武蔵野: 0
武蔵野: 0
万策尽きた: 0
--------------
## Topic information of document 5
Propotion of topics
topic: θ_{document_id, latent_class}
0: 0.999
1: 0.001
Assigned latent class per word
word: latent class
安原絵麻: 0
安原絵麻: 0
安原絵麻: 0
安原絵麻: 0
安原絵麻: 0
安原絵麻: 0
安原絵麻: 0
佳村はるか: 0
SHIROBAKO: 0
SHIROBAKO: 0
SHIROBAKO: 0
SHIROBAKO: 0
SHIROBAKO: 0
SHIROBAKO: 0
万策尽きた: 0
万策尽きた: 0
万策尽きた: 0
武蔵野: 0
武蔵野: 0
--------------
Reference
Yuan, Jinhui and Gao, Fei and Ho, Qirong and Dai, Wei and Wei, Jinliang and Zheng, Xun and Xing, Eric Po and Liu, Tie-Yan and Ma, Wei-Ying. LightLDA: Big Topic Models on Modest Computer Clusters. In WWW, 2015.
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