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Chapter 5(5.4~5.5) Applying information retrieval to text mining Parallel embedded system design lab 이청용.

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Presentation on theme: "Chapter 5(5.4~5.5) Applying information retrieval to text mining Parallel embedded system design lab 이청용."— Presentation transcript:

1 Chapter 5(5.4~5.5) Applying information retrieval to text mining Parallel embedded system design lab 이청용

2 5.4 The term-document matrix applied to Poe Cosine

3 5.4 The term-document matrix applied to Poe Cosine

4 5.4 The term-document matrix applied to Poe Computing angle

5 5.4 The term-document matrix applied to Poe Computing angle

6 5.5 Matrix multiplication Definition matrix

7 5.5 Matrix multiplication Computing matrix product

8 5.5 Matrix multiplication Making diagonal matrix First entry =

9 5.5 Matrix multiplication Normalized matrix

10 5.5 Matrix multiplication Matrix of cosine

11 Matrix of cosine (convert degree) 5.5 Matrix multiplication

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