November 2002 Demo Videos

Below is a 10 minute video clip demonstrating the capabilities of our spoken language intelligent tutoring system. The student has just finished running through a simulation of various crises in the Damage Control domain. The tutor is now going to engage in a reflective dialogue about the student's performance.

For a transcript of the following dialogue please click here.

The video clip illustrates some features of our spoken language intelligent tutoring system:

• reflective tutoring: the tutor and student interactively reflect on and discuss the student's performance in their session with the simulator



• Socratic tutoring: the tutor asks questions rather than giving explanations



• student initiative: the student is able to ask "why"-questions after tutor explanations and alter the tutorial plan by requesting that the tutor skip discussion of certain topics



• multimodal input and output: the tutoring system coordinates linguistic input and output (speech) with non-linguistic input and output (the user can indicate a compartment with a mouse click or the system can highlight a compartment)



• discourse markers: the tutorial dialogue system uses discourse markers like "okay" and "well" to help navigate the dialogue (Bangerter and Clark 2003); e.g., "okay" signals a shift to another topic
  
  
• hinting: the tutor has a repertoire of hinting tactics to deploy in response to student answers to questions
  
  
• generalization: the tutor identifies and discusses repeated mistakes

There are a couple of different versions of our demo, please download the one you think is most appropriate for your computer's setup.

First there are the streamable versions using the RealOne Player (click on "Download the Free RealOne Player Only" towards the bottom right) from http://www.real.com.

• Stanford MURI November 2002 Demo - 56k Modem Stream (2 MB download)
• Stanford MURI November 2002 Demo - 150k Slow Cable Modem/DSL (10 MB download)
• Stanford MURI November 2002 Demo - 384k Fast Cable Modem/dSL (22 MB download)

For those of you who would like to have a sharper image in the video try one of the files below. To download make sure you right-click on the link and select "Save Target As...".

• Stanford MURI November 2002 Demo - MPEG-4 Compression (567 MB download): most computers will have the capability to play these files. You can get this codec by installing the latest version of Quicktime Player (10-20 MB download) if for some reason you can't play MPEG-4 movies.
• Stanford MURI November 2002 Demo - DIVX Compression - Low Quality (172 MB download): most computer will not have the capability to play these files. You can get this codec by installing one of the versions from http://www.divx.com/divx/ (3-5 MB download). I would recommend going this route since DIVX is the best compression algorithm available and leads to smaller files with higher quality (soon to subsume the realm that MPEG-4 currently holds).
• Stanford MURI November 2002 Demo - DIVX Compression - High Quality (346 MB download): if you prefer (and download size is no object) here is another DIVX version of higher quality.