Upgrading from XP to Windows 7

May 13, 2011

Well as you may notice there is no clean way to get from Windows XP directly to Windows 7. However, the Windows XP -> Vista -> Windows 7 route is workable. As noted elsewhere you can perform this two step upgrade without having to active Vista thus giving you the option not to buy Vista […]

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Audio Analysis with WaveSurfer

March 7, 2011
Wave Surfer Logo

Wave Surfer is under active development again and I am delighted. http://sourceforge.net/projects/wavesurfer/ If you want a complete tool kit for analysis of audio this is it. The system runs on Windows, OSX and  Linux what more could you ask for? Precompiled binaries are available as well as source code.

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Latent Semantic Indexing

March 7, 2011

Here is a toy program that demonstrates LSI using the SVD contained within the COLT linear algebra library. The method is taken from here. import cern.colt.matrix.linalg.*; import cern.colt.matrix.*; import cern.colt.matrix.impl.*; import java.util.*; import java.io.*; public class SVDText { public static void main (String args[]) { try { DenseDoubleMatrix2D source = new DenseDoubleMatrix2D(3,11); Scanner sc = […]

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Curve Fitting via SVD

March 7, 2011

I used this method to delete a gradient effect from uneven lighting of some of my book scans. Here is a simple method for curve fitting various polynomials. This works for non linear equations as long as the actual coeficients are linear. For example you can NOT fit the following type of function: Note that […]

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Itchy Ear Syndrome

March 4, 2011

I and my family are afflicted with itchy ears. I’m not talking about occasional dryness I’m talking about everyday itchiness that can drive you to distraction. Here are my findings on controlling this condition. There are two major ways to reduce itchiness: 1. Coverage: I use a product called Lansinoh. This is actually found in […]

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Dell outlet

March 4, 2011

A great deal on computer hardware

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Dailing in the Atiz DIY Scanner

March 4, 2011

My modifications to the Atiz DIY scanner to optimize image quality and speed.

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Liquid Web

March 4, 2011

Why I like Liquid Web

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NIST challenge

February 15, 2011

The NIST challenge

Can an amateur compete in the NIST challenges? Absolutely! And have fun doing it as well.

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