PCA – The death of me

Posted by in The Impossible Dream

I was handed a research paper by my adviser sometime ago. The paper covered some aspect of social health networks. The paper has taken my down. It contains a certain process for reaching its results, that included Data Collection, Cleaning of data and then applying Principal Component Analysis on it to do dimension reduction. Well 3 months down the road, i still cannot comprehend the data processing and PCA. It seems PCA in theory is very simple (infact i read atleast dozen papers on it). What is cannot understand is…read more