A Revised Algorithm for Latent Semantic Analysis

Hu, Xiangen; Cai, Zhiqiang; Louwerse, Max M.; Olney, Andrew; Penumatsa, Phanni; Graesser, Arthur C.

A Revised Algorithm for Latent Semantic Analysis

Xiangen Hu, Zhiqiang Cai, Max M. Louwerse, Andrew Olney, Phanni Penumatsa, Arthur C. Graesser

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Proceedings of the Eighteenth International Joint Conference on Artificial Intelligence. Pages 1489-1490.

Abstract

The intelligent tutoring system AutoTutor uses latent semantic analysis to evaluate student answers to the tutor's questions. By comparing a student's answer to a set of expected answers, the system determines how much information is covered and how to continue the tutorial . Despite the success of LSA in tutoring conversations, the system sometimes has difficulties determining at an early stage whether or not an expectation is covered . A new LSA algorithm significantly improves the precision of AutoTutor's natural language understanding and can b e applied to other natural language understanding applications.

Xiangen Hu, Zhiqiang Cai, Max M. Louwerse, Andrew Olney, Phanni Penumatsa, and Arthur C. Graesser. 2003. A Revised Algorithm for Latent Semantic Analysis. In Proceedings of the Eighteenth International Joint Conference on Artificial Intelligence, IJCAI-03. IJCAI, 1489–1490. https://ijcai.org/proceedings/2003/246

@inproceedings{ijcai2003p246,
  title     = {A Revised Algorithm for Latent Semantic Analysis},
  author    = {Hu, Xiangen and Cai, Zhiqiang and Louwerse, Max M. and Olney, Andrew and Penumatsa, Phanni and Graesser, Arthur C.},
  booktitle = {Proceedings of the Eighteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-03}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Georg Gottlob},
  pages     = {1489--1490},
  year      = {2003},
  url       = {https://ijcai.org/proceedings/2003/246},
}

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TI  - A Revised Algorithm for Latent Semantic Analysis
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AU  - Cai, Zhiqiang
AU  - Louwerse, Max M.
AU  - Olney, Andrew
AU  - Penumatsa, Phanni
AU  - Graesser, Arthur C.
T2  - Proceedings of the Eighteenth International Joint Conference on Artificial Intelligence, IJCAI-03
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