| Question 2: Similarity matrix |
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| (a) What is a similarity measure? |
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| (b) What is a similarity matrix? |
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| (c) Suppose that you are clustering
documents based on co- |
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| occurrence
of citations. Suggest a similarity
measure that you |
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| might use. |
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| (d) Explain the ideas behind the inverted
file algorithm for |
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| calculating
a similarity matrix. |
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| 3 |