Tags » Data Mining

Calculate the frequency and contingency of categorical variables

There is a numerous of data easily collected in the digital era, but not all of them having actual values for customer profiling, segmenting or making a prediction. 576 more words

Data Mining

People Lie, But Search Data Tell the Truth

Looking to Google for a revolution in social science.

Seth Stephens-Davidowitz, a former research assistant of mine, would not strike most people as a revolutionary. Yet in his new book “

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Peter Orszag

MOBAs and brains: A link between skill and intelligence

We recently released an article documenting a link between between young people’s ability to perform well in DotA2 and League of Legends and intelligence. Essentially these games can act like IQ tests. 564 more words

Game Analytics

Classification Series 6 - Naïve Bayes

In this blog post we will go through the Naïve Bayes model. As the name suggests this machine learning algorithm has its foundation on Bayes Theorem. 571 more words

Data Science

Classification Series 5 - K-Nearest Neighbors (knn)

Lets continue the classification series by adding one more machine learning technique to our toolkit i.e. K-Nearest Neighbors (knn). Believe me this is one of the easiest of all the classification models. 490 more words

Data Science

CRISP-DM

We have spent a good time on this blog on various machine learning algorithms, when to use what and so on… Is there a process model for data mining (say for building and deploying predictive models)? 1,072 more words

Data Mining

Conjugate gradient / BFGS / L-BFGS : Better cost function to GD / SGD

Question : Well, now I understand the SGD too, is it the best   cost function optimisation algorithm or are there  others that are more better than they are? 51 more words

Data Mining