30 Essential Data Science, Machine Learning & Deep Learning Cheat Sheets

[unable to retrieve full-text content]This collection of data science cheat sheets is not a cheat sheet dump, but a curated list of reference materials spanning a number of disciplines and tools.
Original Post: 30 Essential Data Science, Machine Learning & Deep Learning Cheat Sheets

Calculating a fuzzy kmeans membership matrix with R and Rcpp

by Błażej Moska, computer science student and data science intern  Suppose that we have performed clustering K-means clustering in R and are satisfied with our results, but later we realize that it would also be useful to have a membership matrix. Of course it would be easier to repeat clustering using one of the fuzzy kmeans functions available in R (like fanny, for example), but since it is slightly different implementation the results could also be different and for some reasons we don’t want them to be changed. Knowing the equation we can construct this matrix on our own, after using the kmeans function. The equation is defined as follows (source: Wikipedia): $$w_{ij} = frac{1}{ sum_ {k=1}^c ( frac{ | x_{i} – c_{j} | }{ | x_{i} – c_{k} | }) ^{ frac{2}{m-1} } } $$ (w_{ij}) denotes to what…
Original Post: Calculating a fuzzy kmeans membership matrix with R and Rcpp

Machine Learning vs. Statistics: The Texas Death Match of Data Science

[unable to retrieve full-text content]Throughout its history, Machine Learning (ML) has coexisted with Statistics uneasily, like an ex-boyfriend accidentally seated with the groom’s family at a wedding reception: both uncertain where to lead the conversation, but painfully aware of the potential for awkwardness.
Original Post: Machine Learning vs. Statistics: The Texas Death Match of Data Science

Data Science Primer: Basic Concepts for Beginners

[unable to retrieve full-text content]This collection of concise introductory data science tutorials cover topics including the difference between data mining and statistics, supervised vs. unsupervised learning, and the types pf patterns we can mine from data.
Original Post: Data Science Primer: Basic Concepts for Beginners

Analytically Speaking Featuring Pedro Saraiva, July 12

[unable to retrieve full-text content]Former academician and now Portugal MP Pedro Saraiva says that Parliaments and societies will improve if more people with a good statistical background become MP. Learn about the paradoxes and issues in statistics and politics.
Original Post: Analytically Speaking Featuring Pedro Saraiva, July 12