Clustering validity function is an index used to judge the accuracy of clustering results. At present, most studies on clustering validity are based on single clustering validity function. Research ...

Taking the characteristics of HVS into consideration, a perceptually weighted mean squared error (PWMSE) based RD model is proposed in this work. First, a low-pass filter is employed to process the ...

The average price is the mean price of an asset over a set period of time. Learn how investors calculate average price and use it in trading decisions.

Learn how capitalization-weighted index funds work, what risks they have, and how they perform vs. equal-weighted funds.