The well-known management concept six sigma actually comes from the empirical rule that if one has six standard deviations (sigma) between the mean of a process and the nearest specification limit in a short-term study, there will be practically no items that fail to meet the specifications (i.e., 3.4 defective parts per million opportunities, corresponding to 4.5 sigma) in the long-term, assuming that the process is normally distributed.
skip to main |
skip to sidebar
My study of machine learning, data mining, computational linguistics and information retrieval, towards the grand goal of developing the "perfect search engine" that "understands exactly what you mean and gives you back exactly what you want" (Larry Page).
Posts
No comments:
Post a Comment