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Alex Popescu's Blog » Transaction Indexer
http://blog.alexandrupopescu.com/2010/10/25/transaction-indexer
Alex Popescu's Blog. Mostly technical but not only…. When you do web mining, you usually take into account several documents (or transactions) and try to find connections between words in these documents. A practical example of this is finding connected products in people’s shopping carts, used by Amazon for example to suggest new products. To achieve this, Association rules. This transaction indexer (as I called it) will receive as input a text file with the following form:. More information about speci...
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Alex Popescu's Blog » Multitouch 2 – Infrared light
http://blog.alexandrupopescu.com/2010/01/18/multitouch-2-infrared-light
Alex Popescu's Blog. Mostly technical but not only…. Multitouch 2 – Infrared light. For the project mentioned before I needed an infrared light to be able to reflect light off the fingers to the WiiMote camera. I started building this myself but being my first electronics job ever I needed some help. After reading and asking around for tips, the circuit I needed to create looked something like this:. I am not very proud of my soldering skills yet so I will not show the backside 🙂. I didn’t get ref...
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Alex Popescu's Blog » Game AI
http://blog.alexandrupopescu.com/category/game-ai
Alex Popescu's Blog. Mostly technical but not only…. Pathfinding shouldn’t care about the map. Back to posting on the blog… after a long while. Lack of time is the only issue that stops me from publishing the piling up stuff I want to share. But, as I am wrapping up the last couple of courses for my Master’s degree right now I hope to find a little bit of […]. My Books on Readernaut. My Last.fm Scrobbles. UvA AI. MSc. Alex Popescu's Blog. Powered by Wordpress. Template by Towfiq I.
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Alex Popescu's Blog » .Net exception list
http://blog.alexandrupopescu.com/2010/02/03/net-exception-list
Alex Popescu's Blog. Mostly technical but not only…. I’ve been looking for a complete list of all possible .Net exceptions because I like to throw the appropriate exception type when needed. MSDN doesn’t offer anything like that but I found a blog post on Mike Vallotton’s blog that was exactly what I was looking for. Here it is: .Net exceptions (all of them). Leave a Reply Cancel reply. Your email address will not be published. Required fields are marked *. My Books on Readernaut. My Last.fm Scrobbles.
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Alex Popescu's Blog » 3D sphere from photos
http://blog.alexandrupopescu.com/2010/02/01/3d-sphere-from-photos
Alex Popescu's Blog. Mostly technical but not only…. 3D sphere from photos. I just presented my demo at the end of last week so now I have some more time to write about it. As I was saying, the purpose was building a multi-touch interface using infrared lights. I also needed to have something to demonstrate on. After thinking about and talking to my coordinator, Frank, the decision was to implement some sort of 3D image selection interface. Responses to “3D sphere from photos”. Very cool stuff 🙂. Your e...
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Alex Popescu's Blog » Programming
http://blog.alexandrupopescu.com/category/programming
Alex Popescu's Blog. Mostly technical but not only…. I’ve been looking for a complete list of all possible .Net exceptions because I like to throw the appropriate exception type when needed. MSDN doesn’t offer anything like that but I found a blog post on Mike Vallotton’s blog that was exactly what I was looking for. Here it is: .Net exceptions (all of them). My Books on Readernaut. My Last.fm Scrobbles. UvA AI. MSc. Alex Popescu's Blog. Powered by Wordpress. Template by Towfiq I.
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Alex Popescu's Blog » AI Master Projects
http://blog.alexandrupopescu.com/category/ai-master-projects
Alex Popescu's Blog. Mostly technical but not only…. Pathfinding shouldn’t care about the map. Back to posting on the blog… after a long while. Lack of time is the only issue that stops me from publishing the piling up stuff I want to share. But, as I am wrapping up the last couple of courses for my Master’s degree right now I hope to find a little bit of […]. My first object tracker. 3D sphere from photos. I just presented my demo at the end of last week so now I have some more time to write about it...
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Alex Popescu's Blog » Utilities
http://blog.alexandrupopescu.com/category/utilities
Alex Popescu's Blog. Mostly technical but not only…. For some XNA experiments of mine, I wanted to generate the XML asset files automatically and so I started exploring different possibilities. After searching for a while, both paid solutions like TorqueX 2D or freely available ones, I was quite unhappy with the solutions out there. So, I decided to start working on my […]. PHP script to generate numbered images. My Books on Readernaut. My Last.fm Scrobbles. UvA AI. MSc. Alex Popescu's Blog.
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Alex Popescu's Blog » Experiments
http://blog.alexandrupopescu.com/category/experiments
Alex Popescu's Blog. Mostly technical but not only…. For some XNA experiments of mine, I wanted to generate the XML asset files automatically and so I started exploring different possibilities. After searching for a while, both paid solutions like TorqueX 2D or freely available ones, I was quite unhappy with the solutions out there. So, I decided to start working on my […]. My Books on Readernaut. My Last.fm Scrobbles. UvA AI. MSc. Alex Popescu's Blog. Powered by Wordpress. Template by Towfiq I.
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Alex Popescu's Blog » Free graphics
http://blog.alexandrupopescu.com/2011/12/09/free-graphics
Alex Popescu's Blog. Mostly technical but not only…. I am a programmer at core and, I guess like most programmers, I am not a very good or proficient artist (even if I did some web design in Photoshop or Flash, games are different). Therefore, when I want to do some game programming, I always struggle to have something to display and I always end up searching online for resources (preferably free). First of all there is http:/ www.reinerstilesets.de/. Then there is http:/ opengameart.org/. He gives away ...