Mental Masturbation, Musings, and Methods

The Mind of Alex Beutel

Entries Tagged as 'Duke'

Interactive Quadtrees and Well-Separated Pairs Decomposition

January 16th, 2012 · 2 Comments

While doing computational geometry research with Professor Pankaj K. Agarwal and Thomas Mølhave at Duke, we looked at using quadtrees and the well-separated pairs decomposition (WSPD) for one of our algorithms. As I was reading about the algorithms and geometric concepts, I decided to code them in Javascript and HTML5′s canvas to get more intuition [...]

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Tags: Duke · Javascript · Math · Mathematics · Programming

Announcing TerraNNI

November 9th, 2011 · No Comments

I am excited to announce that TerraNNI, the project from my undergraduate senior thesis, is being open-sourced. For those who have not heard of the project, TerraNNI is a tool for taking LIDAR data, common for geographic information systems (GIS), and creating high-resolution grid digital elevation models (DEMs).  Most GIS take DEMs as an input [...]

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Tags: C++ · Duke · OpenGL

Rankophilia and Rankophiliacs

January 27th, 2010 · 1 Comment

For my CPS 182S class, we have an assignment which is a competition among groups of students (and the professor) to have the highest ranking page on Google for the terms rankophilia and rankophiliac.  As such, I have created a page at to be my group’s main page on Google. For now, there is [...]

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Tags: Duke · Web Development

SQL Injection at Duke TechExpo 2009

October 12th, 2009 · No Comments

I gave my first public talk today at Duke’s TechExpo 2009. I along with my coworker Artem Kazantsev discussed the risks of SQL Injection. The presentation gives a good overview of the capabilities of SQL injection along with how to prevent such vulnerabilities. I also gave a demo of performing a SQL injection attack on [...]

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Tags: Duke · PHP · Web Development

Drag and Drop off the Desktop in Duke Webfiles

October 5th, 2009 · No Comments

While on break, I’ve been playing around with Mozilla’s File API and integrating it with Duke Webfiles, which I work on for OIT. This is only a proof of concept since the spec has not been completed and I only implemented it in the icon view of Webfiles. Regardless, I think it is pretty cool [...]

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Tags: Duke · Javascript · Web Development