Sunday, March 30, 2008

Human Insight vs. Number Crunching

It is interesting to read the story This Psychologist Might Outsmart the Math Brains Competing for the Netflix Prize together with the book Super Crunchers. On one hand, human intuition is usually less reliable and less accurate than number crunching. On the other hand, a little human insight goes a long way, which may sometimes point out the right direction for number crunching.

Sunday, March 09, 2008


Shogun is a machine learning toolbox focusing on large scale kernel methods especially SVM. It supports

  • state-of-the-art SVM implementations,

  • various kernels including string kernels,

  • a number of linear methods and

  • interfaceing with Matlab and Python etc.

Sunday, March 02, 2008


SVDLIBC is a C library for computing Singular Value Decomposition (SVD). It is actually an improved version of the SVDPACKC library. Since the algorithm that it implemented, las2, has relatively low precision for low order singular values, it is particularly suitable for truncated SVD (as in LSI).