This paper investigates the role of a goal parameter in semantics. On the one hand, goals are necessary for a semantics of questions and answers. On the other hand, the eeect of underlying perlocutionary goals on information in context can be modelled as an issue or question-under-discussion. A logic, update semantics with questions (USQ), is presented that combines update semantics with a part...

Not all questions are asked with the same intention. Humans tend to address the implicit meaning of the question (that contributes to its pragmatic force), which requires knowledge of the context and a degree of common ground, more so than addressing the explicit propositional content of the question. Is recognizing the pragmatic force in today’s human-robot dialogue systems worth the trouble? ...

The use of a Classroom Response System (CRS) was evaluated in two sections, A and B, of a large lecture microbiology course. In Section B the instructor used the CRS technology at the beginning of the class period posing a question on content from the previous class. Students could earn extra credit if they answered the question correctly. In Section A, the class also began with an extra credit...

We compared two types of electronic displays of battlefield information in order to determine how display frame of reference affects a military commander's situation awareness and diagnostic capabilities in a dynamic combat scenario. US Military Academy officers viewed an unfolding ground battle scenario, presented as a sequence of computer-based slides, in one of two display view conditions. T...