∫ntegrabℓε ∂iﬀerentiαℓs · unorganised notes, code, and writings of random topics

Yu (2014) Credit Risk Evaluation with a Least Squares Fuzzy Support Vector Machine Classifier

August 6, 2019 paper

A paper first surveys some variations of support vector machines and their solution, and then apply to credit risk evaluation. [more]

Suykens and Vandewalle (1999) Least Squares Support Vector Machine Classifiers

August 5, 2019 paper

A short paper reviews the prior work on SVM with kernel functions and then move on the introduce a SVM classifier formulated by optimizing for least square error. Refer to previous post for notations. [more]

Convex optimization with Lagrangian function and Support Vector Machine

August 4, 2019 blog math

This is a summary of the math behind the support vector machine. Start from the constrained optimization problem, solving one using Lagrangian function, and application to support vector machine. [more]

Git, mercurial, and synchronized repositories

July 20, 2019 blog system

The first version control system I used was CSV, then I moved to Subversion as everyone else does. Later, people start to look for server-less solutions and I used Mercurial. I even made a cheatsheet about it that is now the top result on Google for searching “mercurial cheatsheet”. But... [more]

Jeong et al (2014) mTCP - A highly scalable user-level TCP stack for multicore systems

June 15, 2019 paper

A paper addresses the inefficiency of TCP in Linux kernel. [more]