about cosine similarity
- by jaskirat
hi i m finding cosine similarity between documents ..i did like dis
D1=(8,0,0,1) where 8,0,0,1 are the tf-idf scores of the terms t1, t2, t3 , t4
D2=(7,0,0,1)
cos(theta) = (56 + 0 + 0 + 1) / sqrt(64 + 49) sqrt(1 +1 )
which comes out to be
cos(theta)= 5
now what do i evaluate from this value...i dont get it wat does cos(theta)=5 signify about the similarity between them...pls reply ..Am i doing things right ??????????..pls do reply guys..
will be thank ful to you..
