A Case-based Reasoning Approach to Intelligent Tutoring Systems

Period of Performance: 09/17/1998 - 09/17/2000


Phase 2 SBIR

Recipient Firm

Stottler Henke Associates
1650 South Amphlett Boulevard, Suite 300
San Mateo, CA 94402
Principal Investigator

Research Topics


This Phase II will create two separate products in parallel. One is an Intelligent Tutoring System (ITS) for use by IUSS Oceanographic Technicians (OTs), to teach all 5 steps of LOFARGRAM analysis. The ITS will monitor the student_s performance in acoustic analysis scenarios; debrief him; maintain a mental model of the student; diagnose student deficiencies; develop a remedial course of study which will include similar examples, detailed description of principles, and more scenarios to test the effectiveness of the remediation. In essence the ITS will possess the ability to turn novice Sonar Technicians into expert IUSS analysts without the direct involvement of experienced IUSS experts. Specifically we will concentrate on the training that occurs in the IUSS school house, during the student_s first IUSS tour - lower to mid-level on-the-job-training (OJT). This will be accomplished by capturing the expert_s experience and knowledge and intelligently presenting it to students. We will compress 10 years of experience into a matter of months. These years of experience are represented by a large number of analysis scenarios, based on actual data, which the ITS will gather directly from the expert OTs and store. The significance of this approach is shown by the fact that one of the most important parameters which affects OT performance is the number of years of experience and that OJT is considered a very important component of training.