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python Programming Glossary: sum1What is wrong with this python function from “Programming Collective Intelligence”? http://stackoverflow.com/questions/1423525/what-is-wrong-with-this-python-function-from-programming-collective-intelligenc item in prefs p2 si item 1 if len si 0 return 0 n len si sum1 sum prefs p1 it for it in si sum2 sum prefs p2 it for it in.. prefs p1 it for it in si sum2 sum prefs p2 it for it in si sum1Sq sum pow prefs p1 it 2 for it in si sum2Sq sum pow prefs p2.. si pSum sum prefs p1 it prefs p2 it for it in si num pSum sum1 sum2 n den sqrt sum1Sq pow sum1 2 n sum2Sq pow sum2 2 n if den..
How to calculate cosine similarity given 2 sentence strings? - Python http://stackoverflow.com/questions/15173225/how-to-calculate-cosine-similarity-given-2-sentence-strings-python numerator sum vec1 x vec2 x for x in intersection sum1 sum vec1 x 2 for x in vec1.keys sum2 sum vec2 x 2 for x in vec2.keys.. sum2 sum vec2 x 2 for x in vec2.keys denominator math.sqrt sum1 math.sqrt sum2 if not denominator return 0.0 else return float..
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