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Saturday, 12 June 2004 |
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Thanks for taking your time to visit my homepage. I am a PhD candidate at the University of Utah Department of Biomedical Informatics. In my past life, I obtained my medical degree from Stanley Medical College, Chennai, India.
My research interests are clinical decision support, natural
language understanding, temporal reasoning, terminology and knowledge
engineering and applying free and open-source technologies in
medical informatics.
My hobbies include traveling, photography, skiing, hacking one of the numerous computers in my apartment, ogling at sports cars, inventing new and improved recipes to satisfy my palate and browsing Wikipedia.
This website has information about my research, hobbies, technical
support for Linux, Java, FLOSS (Free, Libre and Open Source Software, also known as FOSS)
that I created or found elsewhere.
You can see the full articles on this website by clicking the title (in large blue letters) of the intros. For example, try clicking the title of this one ("Welcome to the homepage of ...") .
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Last Updated ( Thursday, 31 July 2008 )
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Friday, 07 December 2007 |
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Projeny is the name I gave to the application I'm writing for part of my PhD dissertation. Projeny is a Java front-end to Bayes Net Toolbox. I recently committed the source code of Projeny to it's sourceforge site under the GNU GPL v2 license. Please visit the Projeny project website for more information. I welcome you to use, collaborate and contribute to the improvement of this application.
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Wednesday, 09 July 2008 |
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MediaWiki is a very nice piece of software, and is the software that runs Wikipedia. MediaWiki supports categories that group together similar concepts (or pages) - here's an example that shows the list of microorganisms and other related concepts. However, when the category has too many members, it becomes very hard to navigate. It would be nice to have an alphabetical index at the top so that you can click a specific letter and go to a page that lists all the members starting with that letter. This feature is not built-in in MediaWiki, and a hack to implement this did not work. Here's my simple, elegant solution to create an alphabetical index.
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Last Updated ( Wednesday, 09 July 2008 )
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Monday, 28 April 2008 |
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I have several RRF (rich release format) files from the UMLS distribution extracted using their Metamorphosys program on a Windows machine. But I did not have the Oracle table creation and loading scripts, because that option was not selected in Metamorphosys while extracting the RRF files on Windows. So, I copied those RRF files to my linux machine where I had the Oracle scripts from my previous Metamorphosys extraction. When I tried to run the Oracle load script, SQLLDR kept dying with the error "SQL*Loader-510: Physical record in data file XXX.YYY is longer than the maximum (1048576)". It took a bit of searching around the Internet to diagnose and fix this cryptic error message. Ah, the joys of confusing Oracle error messages!
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Last Updated ( Monday, 28 April 2008 )
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Friday, 18 April 2008 |
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I am transferring some data from an Oracle 10g database into a MySQL 5.0.11 database, and the numeric datatypes (NUMBER on Oracle and DECIMAL on MySQL) are incompatible when it comes to the scale of the column. Read on to know more. Please help me if you know how to fix this.
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Last Updated ( Friday, 18 April 2008 )
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Friday, 07 December 2007 |
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I do some work at a health care institute which uses authenticated proxy for web access. I also have some code on a sourceforge site (Projeny) on sourceforge's SVN server. I tried configuring proxy within Eclipse but this wouldn't let me check out the project from the Subversion repository using Subclipse. Read on for proxy configuration.
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Friday, 07 December 2007 |
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I have a Java SWT program that runs beautifully on Windows (32 bit). It also ran fine on Linux 32 bit (x86). But when I ran it on a Linux 64-bit (x86_64) platform, I got this error:
Exception in thread "Thread-0" org.eclipse.swt.SWTError: Not implemented [multiple displays]
Read on for a workaround.
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Friday, 07 December 2007 |
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I installed Matlab R2007b on my super fast (well, the fastest I can afford) Athlo64 machine running OpenSuse 10.3 x86_64. I got this problem which prevented Matlab from starting. Matlab showed this error message:
MATLAB: xcb_xlib.c:52: xcb_xlib_unlock: Assertion `c->xlib.lock' failed
I found a work around to avoid this problem. Read on.
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Last Updated ( Thursday, 24 April 2008 )
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Sunday, 03 September 2006 |
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I encountered some troubles installing Oracle client 9.0.2 on my SuSe
Linux Professional 9.2 running x86_64 on an AMD Athlon64. The following
tell you the workarounds to get it fixed.
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Last Updated ( Sunday, 03 September 2006 )
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Sunday, 03 September 2006 |
Okay, you installed Eclipse on your 32 bit Linux machine, and it worked fine and dandy. You try that on your 64-bit Linux (Athlon64) machine with a 64-bit JDK (I used JDK 5) and it gives you cryptic error messages, and you begged and prayed and googled and still no effect? Here's the answer.
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Last Updated ( Sunday, 03 September 2006 )
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