Satellites and houses

This is cool.  He discusses the concept of contracting and subcontracting for building houses and puts it into the perspective of sattelites and task allocation.   http://eprints.soton.ac.uk/339034/1.hasCoversheetVersion/jvdhorst_thesis.pdf

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Categorized as Cool, Robots

Roots of Branching Processes

In branching processes you can find the probability of the system going extinct by finding the roots of the polynomial where the coefficients are the probabilities and the exponents are the number generated.  The smallest root between 0 and 1 will be the answer.  What do the other roots mean?  Basically the root corresponds to… Continue reading Roots of Branching Processes

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Categorized as Math

blackhat

https://www.blackhat.com/us-14/archives.html#android-fakeid-vulnerability-walkthrough https://www.blackhat.com/us-14/archives.html#cloudbots-harvesting-crypto-coins-like-a-botnet-farmer https://www.blackhat.com/us-14/archives.html#hacking-the-wireless-world-with-software-defined-radio-2-0 https://www.blackhat.com/us-14/archives.html#miniaturization   Some interesting blackhat talks.

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Categorized as Web

Android exploits

I was just at a seminar on “Automated Detection and Mitigation of Inter-Application Security Vulnerabilities in Android”.  Basically they told us that some Android apps even though they do not require permissions to access some info they acquire the info through the other apps on your phone.  I just learned that millions of people have… Continue reading Android exploits

Gangs and the Future

Gangs are a nice emergent hierarchical multiagent system.  They exhibit robustness, adaptability, high level of communication, vision (as in forethought and planning), and a strong level of cohesiveness given volatile settings.  Of course all gangs and organized crime exhibit these features in varying levels, but they exist.  The interesting thing is that they are fault… Continue reading Gangs and the Future

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Categorized as thoughts

Machine Learning App

My brother got an internship as an accountant.  One of his duties is a pricing things for the marketing department.  Basically figure out how much all of the components cost and add in all the margins, expected demand etc.  This takes about 3 days to put together a single price.  This is crazy.  It is… Continue reading Machine Learning App

Extract bib

http://www.molspaces.com/d_cb2bib-overview.php is a tool that will extract bib references from unformatted documents like email or webpages or pdf files.  Which I could have used a couple of days ago when I did this manually.

Comparing clustering methods

So, I’m doing a pattern recognition project and I’m comparing different clustering techniques in R.  I found http://www.r-bloggers.com/anova-and-tukeys-test-on-r/ has a nice intro on using ANOVA and Tukey.  The method they show also includes a method for plotting the results (the confidence intervals)!  So, thats nice.