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Closed 12 years ago.
just now I teach someone ruby and I need to give simple program (1-3 classes) to write. Could you give me an example of such program? Or some web resources? It should not be complicated it self, rather it should show ruby (is awesome ;)
Check out http://ruby4kids.com/
Chris Pine's Learn to Program is available online and uses Ruby as its language. It's geared towards novice programers and should contain easy examples. At the end of various chapters you'll also find sections called "A Few Things to Try", which contain nice exercise suggestions.
I found http://rubykoans.com/, and its quite great :)
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Closed 9 years ago.
I'm looking for resources on getting started with program analysis.
The only book I've found on the topic is the Nielson & Nielson book.
Other than that, it seems like there's only "compiler" books where "program analysis" would be a chapter, or something along those lines.
Do people know of any other resources? Thanks!
"Secure Programming with Static Analysis" might be useful.
There is a lecture series you might find useful as well
http://santos.cis.ksu.edu/schmidt/Escuela03/home.html
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Closed 11 years ago.
Has anyone tried to implement Numenta's most recent cortical learning theory (http://www.numenta.com)? I'm working on it and would like to share experience.
I think the ideas from Numeta are very promising. But as with any company that wants to make money they are not verbose enough about the technology so that one should be able to re-implement their system (at least from what I have seen so far). It is probably not in their interest that one could just rebuild the system from which they plan to make money.
Also their system is very general and complex. So unless you have a lot of experience with other kinds of neural networks and learning algorithms, I would not recommend experimenting with their ideas. First try to do Backpropagation and maybe some of the less advanced temporal learning until you are really familiar with that.
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Closed 11 years ago.
I want to know if is there any specific algorithm that can be followed to understand the meaning of a word/sentence/paragraph. Basically, I want to write a program that will take text/paragraph as input and try to find out what its meaning is. And thereby highlight the emotions within the text.
Also, if there is an algorithm to understand things, can the same algorithm be applied to itself? It reduces the quest further to a point where we become interested in knowing meaning of meaning OR rather definition of definition.
You want Natural Language Processing and Semantic Technology. This is still a flourishing area in computer science. Look at things such as a Semantic Reasoner. You can start with Jena. There are also other things you can look at such as Academic Thesis papers.
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Closed 12 years ago.
How to hide the text in the picture using the least significant bit ?
It looks like you're not sure what you're asking. Perhaps go and research the general idea of steganography.
Short answer: don't.
Slightly longer answer: it's a very inefficient form of steganography, it won't work for JPEG images, and for GIF/PNG it'll basically make your image uncompressable.
If you need stega for anything else but curiosity or school assignments, research existing offerings.
The technique you're thinking of is called Steganography. Here's a good post which explains the technique. http://www.dreamincode.net/forums/topic/27950-steganography/
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Closed 12 years ago.
For the last few hours I have tired to get my head around using NSXMLParser.
I understand parts of how it works.
WHY Oh WHY! is this so hard? Is there an easy way to do it, like just name the tag and get the contents?
Oh how I miss XmlDocument object from .Net.
Thanks a million.
Why don't you try NSXMLDocument instead? With it you can do the kind of things you want using xpaths. Check out the docs or this sample code : http://developer.apple.com/mac/library/iPad/index.html#samplecode/XMLBrowser/Introduction/Intro.html%23//apple_ref/doc/uid/DTS40008875