دانلود مقاله ISI انگلیسی شماره 52573
عنوان فارسی مقاله

سیستم های خبره مبتنی بر قانون برای حمایت از گام به گام راهنمایی در حل مسئله جبری: مورد معلم بخش 2 ریاضی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
52573 2013 10 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Rule-based expert systems to support step-by-step guidance in algebraic problem solving: The case of the tutor PAT2Math
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Expert Systems with Applications, Volume 40, Issue 14, 15 October 2013, Pages 5456–5465

کلمات کلیدی
سیستم آموزشی هوشمند - سیستم های خبره - یادگیری ریاضی - جبر - معادلات
پیش نمایش مقاله
پیش نمایش مقاله سیستم های خبره مبتنی بر قانون برای حمایت از گام به گام راهنمایی در حل مسئله جبری: مورد معلم بخش 2 ریاضی

چکیده انگلیسی

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 Algebra ITS, called PAT2Math. The ES is responsible for correcting student steps and modeling student knowledge components during equations problem solving. Another important function of this module is to demonstrate to students how to solve a problem. In this paper, we focus mainly on the implementation of this module as a rule-based expert system. We also describe how we reduced the complexity of this module from O(nd) to O(d), where n is the number of rules in the knowledge base, by implementing some meta-rules that aim at inferring the operations students applied in order to produce a step. We evaluated our approach through a user study with forty-three seventh grade students. The students who interacted with our tool showed statistically higher scores on equation solving tests, after solving algebra exercises with PAT2Math during an approximately two-hour session, than students who solved the same exercises using only paper and pencil.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.