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

Pantheon on Debian Buster

October 14, 2019 blog system

Pantheon desktop or the elementaryOS are temptingly beautiful. What I see most attractive is the Pantheon terminal, which, in my opinion, finally we get a Linux terminal on par with what macOS can provide. [more]

Singh et al (2015) Jupiter Rising

September 15, 2019 paper

A paper documenting Google’s data center network architecture. [more]

Rabiner (1989) A tutorial on hidden Markov models

September 2, 2019 paper

The renowned article to describe hidden Markov models (HMMs). I may not have enough background knowledge to a:ppreciate the speech recognition part but this is very clear and easy to follow to understand the HMM mechanics. [more]

Use of Kalman filter in finance and estimation of value-at-risk

August 18, 2019 paper

Kalman filter is, in certain sense, a way to give the moving average of a time series. It keeps track on a vector of state variables with its corresponding covariance matrix. The Kalman algorithm usually give a converging covariance matrix after several iterations of prediction-update. A common use is to... [more]

Shi and Xu (2016) Credit Scoring by Fuzzy Support Vector Machines with a Novel Membership Function

August 6, 2019 paper

The paper by Wang et al (2005) introduced the fuzzy SVM but did not address how we can obtain the membership value. This paper fill up the void. [more]