Analogical Dialogue Acts: Supporting Learning by Reading Analogies

Analogy is heavily used in written explanations, particularly in instructional texts. We introduce the concept of analogical dialogue acts (ADAs) which represent the roles utterances play in instructional analogies. We describe a catalog of such acts, based on ideas from structure-mapping theory. We focus on the operations that these acts lead to while understanding instructional texts, using the Structure-Mapping Engine (SME) and dynamic case construction in a computational model. We test this model on a small corpus of instructional analogies, expressed in simplified English, which were understood via a semiautomatic natural language system using analogical dialogue acts. The model enabled a system to answer questions after understanding the analogies that it was not able to answer