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Publication Details
Using Equations in Concept Maps to Graphically Build Knowledge Bases by Spaulding, A. and Chaudhri, V. K. and John, B. E. and Prevas, G. and Mishra, S. and Pacheco, J 2007.
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Given an equation representing motion in one dimension, v2 = v1 + a * t, and the value of any of the three variables, it is straightforward to compute the fourth variable by using a pocket calculator or a simple program. But a simple program or a calculator does not understand anything about velocity, acceleration or time, nor how to determine their values in a given scenario. Such lack of knowledge prevents the use of an equation for any sort of reasoning. In this paper we describe a user interface to connect equations to richly defined concepts within a knowledge base. This makes it possible to support reasoning about the variables referenced in an equation. An evaluation of our system found that users could successfully build knowledge bases capable of using inference to answer questions. We discuss the lessons learned during the process.
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Automated User-Centered Reasoning and Acquisition System
The goal of this project is to build a generic knowledge acquisition capability for Physics, Chemistry, and Biology. Using the system, the scientists will be able to formulate their knowledge in the three science domains, and the high school students will be able to pose Advanced-Placement style questions and get user appropriate explanations.
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