warning: Creating default object from empty value in /home/hplus/ on line 33.
Telling computers to do things.
jwatte's picture

Some examples of images to classify

The question came up: Why would I go through the trouble of training a neural network, rather than just checking "is the ground in front of me gray-colored?"

jwatte's picture

Machine learning and computer vision for autonomous rover racing -- step one

Some interesting news on my project to apply machine vision to the subject of autonomous rover racing.
I've been renting GPU processing power on the GPU processing power spot market (yes, there is such a thing) and training neural networks.

jwatte's picture

How to harden a publicly facing server

The question came up: "How would I go about 'Hardening' the host server?"

In theory, hardening is a simple mixture between good configuration, good software, and good operational practice.

jwatte's picture

Outline of a Scalable Web Backend

Here's a common question for newcomers to mobile game development, web game development, and similar systems:

How shall I design my application for scalability? And what do you mean by application, for that matter? Do you mean the whole iOS app/PHP/mySql system, or something else?

jwatte's picture

How do I dependency?

So, if I were to build a brand new OS, not based on Linux kernel necessarily, what should packaging look like?

jwatte's picture

Look what I came across

In the distant past, I made an effort to get various virtual world vendors to attempt to interoperate, such that various virtual worlds could be interconnected.
That would have been cool! Unfortunately, the competetive landscape ended up not supporting such an effort.

Here's a copy of the IETF draft that I posted at the time:

jwatte's picture

Arduino ICSP programming header pinout

I've been wanting to put the ICSP 6-pin header onto a soldered Arduino circuit.

This is so that I can make "emergency" fixes even if I've removed the Atmega MCU from the USB-powered board I normally use to prototype and program. Also, even if I socket it on the destination board, moving it too many times back and forth risks significant damage to the pins!

jwatte's picture

boost::asio async_read_until may read more than the specified data!

This took me a while to track down. I figured I'd document it for posterity, and anyone else trying to do asynchronous networking in C++ using boost::asio. I'm using Ubuntu Server 10.04 LTS with gcc/g++, which uses boost version 1.40. The reason is that the "bytes transferred" argument to the callback is the number of bytes until the separator is found, but more bytes than that are decoded from the socket into the input stream.

Building interactive games on top of a web/HTTP technology stack

I recently answered question on the multiplayer and networking forum, that I feel warrants further distribution. The question dealt with trying to use MySQL eventing and MySQL data as the "server" for a large-scale multi-player web-based game.

jwatte's picture

What can I do with music, really? FFT and the XNA content pipeline

I was unhappy with the low resolution of the visualization data that you get out of the XNA framework MediaPlayer. If you want to synchronize gameplay to music, the data you get is not sufficient.

Syndicate content