Rule-based expert systems to support step-by-step guidance in algebraic problem solving: The case of the tutor PAT2Math

@article{Jaques2013RulebasedES,
  title={Rule-based expert systems to support step-by-step guidance in algebraic problem solving: The case of the tutor PAT2Math},
  author={Patr{\'i}cia Augustin Jaques and Henrique M. Seffrin and Geiseane L. Rubi and Felipe de Morais and C{\'a}ssio Ghilardi and Ig Ibert Bittencourt and Seiji Isotani},
  journal={Expert Syst. Appl.},
  year={2013},
  volume={40},
  pages={5456-5465}
}
In order for an Intelligent Tutoring System (ITS) to correct students’ exercises, it must know how to solve the same type of problems that students do and the related knowledge components. It can, thereby, compare the desirable solution with the student’s answer. This task can be accomplished by an expert system. However, it has some drawbacks, such as an exponential complexity time, which impairs the desirable real-time response. In this paper we describe the expert system (ES) module of an… CONTINUE READING
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