Reinforcement Learning of Pedagogical Policies in Adaptive and Intelligent Educational Systems Articles uri icon

publication date

  • May 2009

start page

  • 266

end page

  • 270

issue

  • 4

volume

  • 22

international standard serial number (ISSN)

  • 0950-7051

electronic international standard serial number (EISSN)

  • 1872-7409

abstract

  • In an adaptive and intelligent educational system (AIES), the process of learning pedagogical policies according the students needs fits as a Reinforcement Learning (RL) problem. Previous works have demonstrated that a great amount of experience is needed in order for the system to learn to teach properly, so applying RL to the AIES from scratch is unfeasible. Other works have previously demonstrated in a theoretical way that seeding the AIES with an initial value function learned with simulated students reduce the experience required to learn an accurate pedagogical policy. In this paper we present empirical results demonstrating that a value function learned with simulated students can provide the AIES with a very accurate initial pedagogical policy. The evaluation is based on the interaction of more than 70 Computer Science undergraduate students, and demonstrates that an efficient and useful guide through the contents of the educational system is obtained.

keywords

  • reinforcement learning;; adaptive and intelligent educational systems;; distance learning;; artificial intelligence applied to intelligent tutoring systems