Archive for August, 2007

31 Aug

Adapting Associative Classification to Text Categorization

Posted by cognitivecomputing in Language. Tagged: , .

Associative classification, which originates from numerical data mining, has been applied to deal with text data recently. Text data is firstly digitalized to database of transactions, and then training and prediction is actually conducted on the derived numerical dataset. This intuitive strategy has demonstrated quite good performance. However, it doesn’t take into consideration the inherent characteristics of text data as much as possible, although it has to deal with some specific problems of text data such as lemmatizing and stemming during digitalization. In this paper, we propose a bottom-up strategy to adapt associative classification to text categorization, in which we take into account structure information of text. Experiments on Reuters-21578 dataset show that the proposed strategy can make use of text structure information and achieve better performance.

Read the paper:

Adapting Associative Classification to Text Categorization

by Baoli Li, Neha Sugandh, Ernie Garcia, Ashwin Ram

ACM Conference on Document Engineering (ACM-DocEng-07), Winnipeg, Canada, August 2007
www.cc.gatech.edu/faculty/ashwin/papers/er-07-13.pdf

16 Aug

Case-Based Planning and Execution for Real-Time Strategy Games

Posted by cognitivecomputing in Game AI. Tagged: , , , , .

Artificial Intelligence techniques have been successfully applied to several computer games. However in some kinds of computer games, like real-time strategy (RTS) games, traditional artificial intelligence techniques fail to play at a human level because of the vast search spaces that they entail. In this paper we present a real-time case based planning and execution approach designed to deal with RTS games. We propose to extract behavioral knowledge from expert demonstrations in form of individual cases. This knowledge can be reused via a case based behavior generator that proposes behaviors to achieve the specific open goals in the current plan. Specifically, we applied our technique to the WARGUS domain with promising results.

Read the paper:

Case-Based Planning and Execution for Real-Time Strategy Games

by Santi Ontañón, Kinshuk Mishra, Neha Sugandh, Ashwin Ram

Seventh International Conference on Case-Based Reasoning (ICCBR-07), Belfast, Northern Ireland, August 2007
www.cc.gatech.edu/faculty/ashwin/papers/er-07-11.pdf