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October 2013

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Damon Mccoy <[log in to unmask]>
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Thu, 31 Oct 2013 13:25:06 +0000
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Damon Mccoy <[log in to unmask]>
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Hello everyone,

Lunch Seminar will be held today. Tim will be presenting and Halloween snacks will be provided.

Title: "Understanding the Big Picture: Aggregate Clustering for Multiple Virtual Senses"

Abstract:
Virtual characters are used to create more dynamic and lifelike virtual scenarios. These characters exist in realistic worlds consisting of a large number of objects and events, and must be able to understand their environment so that they are able to act plausibly within it. Endowing an agent with perceptual capabilities from multiple senses leads to more believable reactions to their environment.However, in complex environments with a large number of objects this can become computationally infeasible. To allow virtual humans to operate in more realistic environments, we have created two methods to cluster objects during agent perception, one based solely on the layout of objects in the environments and another based on agents' perspectives of the environment given their current mental state. Objects are grouped based on their similarities and proximity. Agents can then reason about groups of concepts,and are able to perceive a more complete picture of a given scenario.We provide sample scenarios to illustrate the impact of multisense perception on agent understanding and behavior. We also perform analysis on the impact of clustering on computation costs, using multiple methods of clustering.

Damon


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