Document classification test

Problem And Solve

• How to import the sparse data of vsm to weka

Document classification of Sougou data

• DATA

• Data from SougouLab [1],using SogouC.reduced(30M)
• 9-Classes:财经,IT,健康,体育,旅游,教育,招聘,文化,军事
• train and test: train(),test(),dev()

• Text preprocessing

• Segment word using wordlist of 9W.(tencent)
• Remove stop word.stop_wordlist is

• Some Tools

• weka
• scw
• google word2ve
• LDA

VSM Test

• Data

• dimension:9402

• Method

• document reprenstion: use the tf-idf weight for word weight
• classifier: Native Bayes

• Result

classification result

Training Set	财经	IT	健康	体育	旅游	教育	招聘	文化	军事	sum
ACC	0.678	0.718	0.708	0.708	0.73