Soledad Vedovato/Nick Wilson, RPI Graduate Student Presentations

 

Soledad Vedovato/Nick Wilson, RPI Graduate Student Presentations

Sage 4101

March 17, 2010 12:00 AM - 12:00 AM

Soledad Vedovato:

Title:Semantics of Ellipsis and Coordination through a Cognitive Substrate

Abstract:Seemingly ordinary sentences such as "the couple put on pants and a skirt" entail intricate semantic analyses. Part of this complexity is evidenced by the multiplicity of sources of knowledge we normally use to understand such utterances. The semantic phenomena in play in these cases involve linguistic coordination (marked by "and", "or", "with"); pluractional markers (such as "couple"); and ellipsis (deliberate exclusion of words), which combine to give us an array of possible responses.

In this talk, we will undertake the semantic relationships present in coordination and ellipsis through a wider set of knowledge-based principles. In this manner, constraints based on sets, world knowledge, and basic syntax (itself based on basic cognitive relationships, such as parthood and identity), encoded in Polyscheme, will suffice to find and select the most likely and all the possible meanings associated with these utterances. As a result, we will be able to utilize a small set of cognitive relations to process coordination in natural language utterances and understand, for example, how plausible it is to have a world in which the aforementioned couple wears several pairs of pants and a skirt around both of them.

Nick Wilson:

Title: Toward Modeling Complex Cognitive Disorders: A Personality-based Computational Interpretation

Abstract: Most work on personality has concentrated on two areas: structure & dynamics. However, recently, researchers in the areas of cognitive modeling have started making inroads into describing the personality phenomenon using computational unified theories of cognition. These integrated approaches have made strides toward better understanding the underlying structures of personality models such as the Big-5. Additionally, these models can possibly also be applied toward other personality-related phenomenon, such as obsessive compulsive disorder or addiction. In this talk, I will explore ongoing research, using the CLARION cognitive architecture (via the newest implementation, the CLARION Library 6.0.6), that furthers earlier work done by Read et al. (2009) and Quek & Moskowitz (2006). Our interpretations will also be applied to providing possible personality-based explanations for obsessive compulsive disorder and addiction.

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