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This week Dr. Gonzalez gave us two great lecture of text mining. I have heard the term of ‘text mining’ for thousands of times, but this is the first time that I get in touch with this field. Our language is really ambiguous. Those ambiguous can be at lexical level or syntactical level. I like the example she gave us in class about “big stars resist dieting”. Our misunderstanding of this sentence is caused by lexical level. But text mining is to let computer to extract information from such ambiguous language, it is even more difficult. According to my simple understanding, the key point of text mining is to find certain pattern from a large amount of nature language text. Text is written for people to read, how can we make computers to read it? Dr. Gonzalez introducee some basic concept of the algorithms and the underlying principles, which I think are really interesting.

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Jing Lu