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Web Science/Part2: Emerging Web Properties/Modelling Similarity of Text/Probabilistic Similarity Measures Kullback Leibler Divergence/quiz
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Web Science
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Part2: Emerging Web Properties
|
Modelling Similarity of Text
|
Probabilistic Similarity Measures Kullback Leibler Divergence
Smoothing is needed
to make sure the probability function will not take the value 0
because this will always yield more accurate results
because otherwise the query likelihood model would have sparse results for many queries
all of the above