Goals The principal objective of this project is to develop a system for representing and reasoning about the discourse context in extended man-machine dialogs. Current focus areas include the development of a general theory of multiagent planning to account for the structure of natural-langnage dialog, the development of a general knowledge representation for capturing a wide range of natura l...

A Framework for K–12 Science Education identifies eight science and engineering practices for K–12 classrooms. These practices, along with core ideas and crosscutting concepts, define our nation’s learning goals for science. An important advance from earlier standards (AAAS 1993, NRC 1996), these practices are clearly identified not as separate learning goals that define what students should kn...

A Framework for K–12 Science Education identifies eight science and engineering practices for K–12 classrooms. These practices, along with core ideas and crosscutting concepts, define our nation’s learning goals for science. An important advance from earlier standards (AAAS 1993, NRC 1996), these practices are clearly identified not as separate learning goals that define what students should kn...

The purpose of this article is to compare three qualitative approaches that can be used in health research: phenomenology, discourse analysis, and grounded theory. The authors include a model that summarizes similarities and differences among the approaches, with attention to their historical development, goals, methods, audience, and products. They then illustrate how these approaches differ b...

The relation between the learning environment (e.g., students’ perceptions of the classroom goal structure and teachers’ instructional discourse) and students’ reported use of avoidance strategies (selfhandicapping, avoidance of help seeking) and preference to avoid novelty in mathematics was examined. Quantitative analyses indicated that students’ reports of avoidance behaviors varied signific...

We posit that determining the social goals and intentions of dialogue participants is crucial for understanding discourse taking place on social media. In particular, we examine the social goals of being collegial and being adversarial. Through our early experimentation, we found that speech and dialogue acts are not able to capture the complexities and nuances of the social intentions of disco...

Two key objectives of conversational case-based reasoning (CCBR) systems are (1) eliciting case facts in a manner that minimizes the user’s burden in terms of resources such as time, information cost, and cognitive load, and (2) integrating CBR with other problem solving modalities. This paper proposes an architecture that addresses both these goals by integrating CBR with a discourse-oriented ...

Attaining sustainability will require concerted interactive efforts among disciplines, many of which have not yet recognized, and internalized, the relevance of environmental issues to their main intellectual discourse. The inability of key scientific disciplines to engage interactively is an obstacle to the actual attainment of sustainability. For example, in the list of Millennium Development...

Opinions on the relationship between discourse models (DMs) and user models (UMs) are obviously influenced by preassumptions about their respective contents. As far as DMs are concerned, two divergent views have been expressed in the discussion published here: I. The DM contains only representations of the objects mentioned so far in the discourse (i.e., a mentioned-object memory--see Schuster,...