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Understanding stories with large-scale common sense

Author(s)
Williams, Bryan Michael; Lieberman, Henry A; Winston, Patrick H
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Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/
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Abstract
Story understanding systems need to be able to perform commonsense reasoning, specifically regarding characters' goals and their associated actions. Some efforts have been made to form large-scale commonsense knowledge bases, but integrating that knowledge into story understanding systems remains a challenge. We have implemented the Aspire system, an application of large-scale commonsense knowledge to story understanding. Aspire extends Genesis, a rule-based story understanding system, with tens of thousands of goalrelated assertions from the commonsense semantic network ConceptNet. Aspire uses ConceptNet's knowledge to infer plausible implicit character goals and story causal connections at a scale unprecedented in the space of story understanding. Genesis's rule-based inference enables precise story analysis, while ConceptNet's relatively inexact but widely applicable knowledge provides a significant breadth of coverage difficult to achieve solely using rules. Genesis uses Aspire's inferences to answer questions about stories, and these answers were found to be plausible in a small study. Though we focus on Genesis and ConceptNet, demonstrating the value of supplementing precise reasoning systems with large-scale, scruffy commonsense knowledge is our primary contribution.
Date issued
2017
URI
https://hdl.handle.net/1721.1/128901
Department
Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory; Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
Proceedings of the Thirteenth International Symposium on Commonsense Reasoning
Publisher
CEUR-WS
Citation
Williams, Bryan et al. "Understanding stories with large-scale common sense." Proceedings of the Thirteenth International Symposium on Commonsense Reasoning, November 2017, London, United Kingdom, CEUR-WS, 2017 © 2017 Association for the Advancement of Artificial Intelligence
Version: Author's final manuscript

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