UNT Theses and Dissertations - 5 Matching Results

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Automated Defense Against Worm Propagation.

Description: Worms have caused significant destruction over the last few years. Network security elements such as firewalls, IDS, etc have been ineffective against worms. Some worms are so fast that a manual intervention is not possible. This brings in the need for a stronger security architecture which can automatically react to stop worm propagation. The method has to be signature independent so that it can stop new worms. In this thesis, an automated defense system (ADS) is developed to automate defense… more
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Date: December 2005
Creator: Patwardhan, Sudeep
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Minimally Supervised Word Sense Disambiguation Algorithm Using Syntactic Dependencies and Semantic Generalizations

Description: Natural language is inherently ambiguous. For example, the word "bank" can mean a financial institution or a river shore. Finding the correct meaning of a word in a particular context is a task known as word sense disambiguation (WSD), which is essential for many natural language processing applications such as machine translation, information retrieval, and others. While most current WSD methods try to disambiguate a small number of words for which enough annotated examples are available, the… more
Date: December 2005
Creator: Faruque, Md. Ehsanul
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Planning techniques for agent based 3D animations.

Description: The design of autonomous agents capable of performing a given goal in a 3D domain continues to be a challenge for computer animated story generation systems. We present a novel prototype which consists of a 3D engine and a planner for a simple virtual world. We incorporate the 2D planner into the 3D engine to provide 3D animations. Based on the plan, the 3D world is created and the objects are positioned. Then the plan is linearized into simpler actions for object animation and rendered via th… more
Date: December 2005
Creator: Kandaswamy, Balasubramanian
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

An Empirical Evaluation of Communication and Coordination Effectiveness in Autonomous Reactive Multiagent Systems

Description: This thesis describes experiments designed to measure the effect of collaborative communication on task performance of a multiagent system. A discrete event simulation was developed to model a multi-agent system completing a task to find and collect food resources, with the ability to substitute various communication and coordination methods. Experiments were conducted to find the effects of the various communication methods on completion of the task to find and harvest the food resources. R… more
Date: May 2005
Creator: Hurt, David
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

FP-tree Based Spatial Co-location Pattern Mining

Description: A co-location pattern is a set of spatial features frequently located together in space. A frequent pattern is a set of items that frequently appears in a transaction database. Since its introduction, the paradigm of frequent pattern mining has undergone a shift from candidate generation-and-test based approaches to projection based approaches. Co-location patterns resemble frequent patterns in many aspects. However, the lack of transaction concept, which is crucial in frequent pattern mining, … more
Date: May 2005
Creator: Yu, Ping
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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