What kind of semantic information can be extracted from such media? Anything would be fine, be it differentiation between music and spoken text, detection of distinct sounds (like gunshots or birds or cars), detecting indoor/outdoor takes or intensity of camera motion. I know that there are many, many, many, manymanymany research topics...
I've been reading a bit about how interpreters/compilers work, and one area where I'm getting confused is the difference between an AST and a CST. My understanding is that the parser makes a CST, hands it to the semantic analyzer which turns it into an AST. However, my understanding is that the semantic analyzer simply ensures that rul...
Hello, I am hand tagging twitter messages as Positive, Negative, Neutral. I am try to appreciate is there some logic one can use to identify of the training set what proportion of message should be positive / negative and neutral ? So for e.g. if I am training a Naive Bayes classifier with 1000 twitter messages should the proportion o...
Is there a research paper/book that I can read which can tell me for the problem at hand what sort of feature selection algorithm would work best. I am trying to simply identify twitter messages as pos/neg (to begin with). I started out with Frequency based feature selection (having started with NLTK book) but soon realised that for a ...
I'm looking for any free tools/components/libraries that allow me to take anvantage of text mining, fact extraction and semantic analysis in my .NET application. The GATE project is what I need but it is written in Java. Is there something like GATE in the .NET world? My challange is to extract certain facts out of website text conten...
In a rule system, or any reasoning system that deduces facts via forward-chaining inference rules, how would you prune "unnecessary" branches? I'm not sure what the formal terminology is, but I'm just trying to understand how people are able to limit their train-of-thought when reasoning over problems, whereas all semantic reasoners I've...
Does anyone known of a semantic parser for the Russian language? I've attempted to configure the link-parser available from link-grammar site but to no avail. I'm hoping for a system that can run on the Mac and generate either a prolog or lisp-like representation of the parse tree (but XML output is fine as well). Thank you kindly in ad...
I'm using Zend Studio to work on several PHP projects. Most of these projects include several external libraries. I've got these tucked away in a "libraries" directory within each project (using a public, application, libraries structure). The libraries are included using svn:externals - we made this choice so that it's easy to keep them...
I am wondering where is the borderline between grammar specification and semantic analysis. What is better: to use a detailed grammar description or leave the details for semantic phase? For example: imagine an OO-language like C# with enum type, that can "derive" from a primitive type enum X : int { a = 1 } Now, should the correctnes...