On Apr 17, I joined Global TokyoR #1 and talked about a stuff below. Visualization of Supervised Learning with {arules} + {arulesViz} from Takashi J Ozaki (Note: please install {igraph} package before installing {arulesViz}) By the way, th…

I read a set of much interesting questions by Dr. Vincent Graville as below: 10 questions about big data and data science - Data Science Central Should companies embrace big data? Which ones (start-ups, big-companies, tech companies, retai…

(The original posts in Japanese version are here and here ) In Japan, from my own experience, there may be a dichotomy between "analytics" and "data science". It has been said that real business matters require rapid analyses and rapid act…

(The original post in Japanese version is here) In several marketing teams that I've worked on or from not a few people in the other companies for marketing, I've heard some complaints as follows: "We're working hard to improve and optimiz…

I'm nothing but a Data Scientist in a company -- but at the same time I'm working as an evangelist of data science and data scientists themselves. I've been watching how people think of data scientists and how deep they are accepted in Jap…

In Japanese version of this blog, I've written a series of posts about how each kind of machine learning classifiers draws various classification hyperplanes or decision boundaries. So in this post I want to show you a summary of the serie…

Hello everybody in data science community -- I'm TJO from Ginza, Tokyo. Ginza is one of the most bustling downtowns in not only Tokyo, but also all over Japan. After 6 years academic career in experimental neuroscience, I moved to data sci…