Author Archives: jsmith

Shakespeare Sonnet Sourced Markov Text Generation

And play the mother’s part, kiss me, be kind; So will I pray that thou mayst prove me. Weary with toil, I haste me thence? Till I return, of posting is no remedy, It is the time with thoughts of … Continue reading

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Simple FSM Game in Prolog

We have done some Prolog in my programming languages class recently, so I’ve been doing some additional reading this weekend for kicks. I actually have some background in rule-based system, primarily using Jess (look for my name in the credits … Continue reading

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Using Gephi for RDB Schema Visualization

I spent a little bit of time this weekend looking at using Gephi for visualizing graphs and networks. I heard about Gephi from this post on the dataists web site.

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MS Communicator(SIP) + Ubuntu 9.04

I found an interesting post this morning talking about using Pidgin on Fedora Core to communicate with a MS Communicator server. I was able to follow the instructions from Louis van der Merwe to get this working on 64-bit Ubuntu … Continue reading

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Moiré Curves

I wrote this during lunch to kill some time before a conference call. I liked the effect on the Moiré Pattern page and thought I would replicate a variation of it.

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Processing Maze Generator/Solver

This is one of the first Processing projects I wrote a few months ago while I was waiting on a large database download and import. Requires a working Java plugin in your browser.

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Apache Trailing Slash Problem

I was helping our IT guys out this past weekend configuring a reverse proxy load balancing environment for JBoss/Tomcat behind Apache. I kept running into problems where requests coming from Apache looked like: GET /foo//bar instead of GET /foo/bar

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Visualizing Changes With Levelplot Heatmap

I recently worked on configuring and enabling Ehcache with our Hibernate objects for common domain objects we query on almost every page request. I was interested in whether this would improve performance, and how best to illustrate the effect of … Continue reading

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Summary statistics by group with R

I was working on profiling some code today and wanted to obtain some summary statistics by groups with two factors. The original source was a log4j file that included entries from an aspect based logger I had enabled. I had … Continue reading

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More Quick R Maps: Country View of WHO Confirmed Cases

I realized it should be pretty easy to use the approach as the previous R map I generated to make a smaller scale map at a country level. In this example I’m setting up an initial non-plotted map with limits … Continue reading

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