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Integrating Representation Learning ...

Li, Nan.

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Integrating Representation Learning and Skill Learning in a Human-Like Intelligent Agent.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Integrating Representation Learning and Skill Learning in a Human-Like Intelligent Agent./
Author:	Li, Nan.
Description:	99 p.
Notes:	Source: Dissertation Abstracts International, Volume: 75-02(E), Section: B.
Contained By:	Dissertation Abstracts International75-02B(E).
Subject:	Computer Science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3574872
ISBN:	9781303520372

Integrating Representation Learning and Skill Learning in a Human-Like Intelligent Agent.
Li, Nan.

Integrating Representation Learning and Skill Learning in a Human-Like Intelligent Agent. - 99 p.

Source: Dissertation Abstracts International, Volume: 75-02(E), Section: B.

Thesis (Ph.D.)--Carnegie Mellon University, 2013.

Building an intelligent agent that simulates human learning of math and science could potentially benefit both cognitive science, by contributing to the understanding of human learning, and artificial intelligence, by advancing the goal of creating human-level intelligence. However, constructing such a learning agent currently requires manual encoding of prior domain knowledge; in addition to being a poor model of human acquisition of prior knowledge, manual knowledge-encoding is both time-consuming and error-prone. Previous research has shown that one of the key factors that differentiates experts and novices is their different representations of knowledge. Experts view the world in terms of deep functional features, while novices view it in terms of shallow perceptual features. Moreover, since the performance of learning algorithms is sensitive to representation, the deep features are also important in achieving effective machine learning.

ISBN: 9781303520372Subjects--Topical Terms:

626642
Computer Science.

Integrating Representation Learning and Skill Learning in a Human-Like Intelligent Agent.
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020 $a 9781303520372
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100 1 $a Li, Nan. $3 1278894
245 1 0 $a Integrating Representation Learning and Skill Learning in a Human-Like Intelligent Agent.
300 $a 99 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-02(E), Section: B.
500 $a Advisers: Kenneth R. Keodryer; William W. Cohen.
502 $a Thesis (Ph.D.)--Carnegie Mellon University, 2013.
520 $a Building an intelligent agent that simulates human learning of math and science could potentially benefit both cognitive science, by contributing to the understanding of human learning, and artificial intelligence, by advancing the goal of creating human-level intelligence. However, constructing such a learning agent currently requires manual encoding of prior domain knowledge; in addition to being a poor model of human acquisition of prior knowledge, manual knowledge-encoding is both time-consuming and error-prone. Previous research has shown that one of the key factors that differentiates experts and novices is their different representations of knowledge. Experts view the world in terms of deep functional features, while novices view it in terms of shallow perceptual features. Moreover, since the performance of learning algorithms is sensitive to representation, the deep features are also important in achieving effective machine learning.
520 $a In this work, we propose an efficient algorithm that acquires representation knowledge in the form of "deep features" for specific domains, and demonstrate its effectiveness in the domain of algebra as well as synthetic domains. We integrate this algorithm into a learning agent, SimStudent, which learns procedural knowledge by observing a tutor solve sample problems, and by getting feedback while actively solving problems on its own. We show that learning representations enhances the generality of the learning agent by reducing the requirements for knowledge engineering. Moreover, we propose an approach that automatically discovers student models using the extended SimStudent. By fitting the discovered model to real student learning curve data, we show that the discovered model is better or as good as human-generated models, and demonstrate how the discovered model may be used to improve a tutoring system's instructional strategy.
590 $a School code: 0041.
650 4 $a Computer Science. $3 626642
650 4 $a Artificial Intelligence. $3 769149
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710 2 $a Carnegie Mellon University. $b Computer Science. $3 2094137
773 0 $t Dissertation Abstracts International $g 75-02B(E).
790 $a 0041
791 $a Ph.D.
792 $a 2013
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856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3574872