I have been looking at Open source social networking tools. Some of the interesting options are - Elgg, Mahara, XOPPS with YOGURT, Dolphin, Pinax. I was amazed to see how easy it is to develop our own social networking environment using these tools.
Following are some of the features of Elgg and Mahara -
I have been experimenting with different OCR tools in order to convert scanned PDF documents into text for indexing and data mining.
I started with OCRopus which is a project supported by Google. But it was too slow and did not worked well on the PDF documents. Then I downloaded a trial version of ABBYY's FineReader, which actually worked pretty good. The best part was that it even retains the document structure, styling and font. Also, multiple pages w...
Recently, I came across this survey - Charlatanry in forensic speech science: A problem to be taken seriously. It explains how current lie detection systems are no where near detecting lie but their market is increasingly growing. Here is a related video (worth watching) by ABC news in which they interviewed the owner of one of the lie detection systems CVSA, an "unstable" program with nearly 800 lines of code written in visual basic and its in use by many police departments -
I just came from a talk on "annotating discourse meaning". For the people who dont know what a discourse analysis is, it's the analysis of language 'beyond the sentence', and the aim of the talk was to demonstrate Penn Discourse Tree Bank and how they 'annotate' discourse relation (connection) between sentences.
There are two ways discourse relation can be triggered -
In Penn Discourse Tree Bank -
-each relation is annotated independently and dependency across difference not annotated.
-There are various argument labels and linear order:
-Any number of class...
Recently, I came across project LISTEN (Literacy Innovation that Speech Technology ENables) as part of my research for "Topics in speech processing" class. As stated on the project page - "Its an automated Reading Tutor that displays stories on a computer screen, and listens to children read aloud. The Reading Tutor intervenes when the reader makes mistakes, gets stuck, clicks for help, or is likely to encounter difficulty." This system has already been used by hundreds of children which generated a lot of data for "educational data mining".
Following are my notes from the Google tech talk that i recently attended -
The talk was mainly about AdSense and Google search.
Following is the schematic view of how AdSense works -
In the above diagram A site represents advertisers site and P site represents publishers site and $ is an indicator of money involved.
There are three type of cook...
While working on the details of Course Recommendation System I found this paper - "Social Navigation Support in a Course Recommendation System" . The most interesting thing about this paper is Motivation for Providing Feedback. They follow the "do-it-for-yourself" approach.
The main theme of this approach is to encourage user's participation by turning their feedback into an activity that is important and meaningful to them. To implement this concept they used a Career Scope indicator which shows progress towa...
Last semester while taking a Search Engine Technology class, I came across this website - www.gwap.com. The website defines itself as "Games With A Purpose (GWAP)". The games are very basic but they help computers learn about the human decision process. The following is an example from the About page of the website -
1. You and a partner see the same image and are asked to type in a tag for it. When you agree on a tag, you move on and are awarded points. After just a minute of play, you've agreed on six or seven tags.
2. We record those six or seven tags and associate them with the ...
I guess every one of us have been through the pain of the course selection process. I always wish if someone could suggest to me the right combination of courses to take. Of course, seniors are there to advice us but they only know about the courses they took. There are websites like this one which has the feedback of the students on the various courses and the professors who taught them. But these resources only have the information and does not recommend the course and professor combination on the basis of a...