Correlation (viewed as linear relationship) a Correlation measures the linear relationship between objects a To compute correlation we standardize data objects, A and b and then take their dot product k mean (A))/ std(A) b'k=(bk -mean (b))/std (B) correlation(A,B)=A·B 同济大学软件学院 19 ool of Software Engineering. Tongpi Unversity19 Correlation (viewed as linear relationship) ◼ Correlation measures the linear relationship between objects ◼ To compute correlation, we standardize data objects, A and B, and then take their dot product a' (a mean(A))/std(A) k = k − b' (b mean(B))/std(B) k = k − correlation(A,B) = A'•B