artificial-intelligence

Inspired by: I like smart people. — Firuza Pastakia (@firuzap) January 6, 2015

With the increasing number of “opinion-dispensing apps” which enable Urdu users to write in Unicode out there on the web, there is (or will soon be) a need for getting some meaningful statistics out of the ever-present sentiment of the masses (or at least the web-savvy subset). This calls for resources which enable automatic processing of sentiment, one of which is a sentiment lexicon for Urdu. (For people uninitiated in computational linguistics, a lexicon is just a list of words)....

Twitter API has changed a bit so this post had to be updated. Check the updated post here Topic modelling means detecting “abstract” topics from a collection of text documents. The most common text book technique to do that is using Latent Dirichlet Allocation. Simply put, LDA is a statistical algorithm which takes documents as input and produces a list of topics. One catch is that you have to tell it how many topics you want....

 

This ‘thing’ took about 30 minutes to figure out. According to the WEKA documentation, if you add a new Instance to an existing Instances object, String values are not transferred ! In case you are working on copying a dataset with a string attribute, you need to transfer the string manually. The code segment below copies the i^th instance from source to dest where the first attribute (at index 0) is a string attribute....