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Adaptive assistance systems, user models

LOCATION: 208, TEL, Ernst-Reuter-Platz 7, 2nd floor

Date/Time: 28.10.2015, 14:15-15:00

SPEAKER: Bernd Ludwig (Universität Regensburg)

ABSTRACT:

The design of interactive assistance systems that can solve tasks in cooperation with users requires a deep understanding of 1) how solutions to the task at hand look like and can be found and executed 2) how and why information can be exchanged between users and assistance systems that is vital for reaching a solution and 3) how problem solving steps as in (1) and communication steps as in (2) interfere and influence each other.

In this talk, I present an approach that views (1) as a classical AI planning problem and (2) as a reactive planning problem depending on the current state of the task currently to be solved. While (1) serves for solving the task step by step, (2) is required in order to provide information that was not available when the plan how to solve the task had been computed. Both mechanisms have to be coordinated in a control loop that monitors the state of the current task and the current interaction in order to decide which action to execute next as long as the task is not solved yet.

I will then argue that the efficiency of an interactive assistance system can be evaluated by comparing paths actually taken by the user through the solution space with the plan computed by the system as the most efficient solution given the knowledge and information available for planning the solution.

BIO:

Bernd Ludwig was a research assistant in the research group Wissensverarbeitung at Bavarian Research  Center for Knowledge-Based Systems (Erlangen) from 1997 til 2004 and. From 2004 until 2010, he was a research assistant at the chair for artificial intelligence at  Friedrich-Alexander-Universität Erlangen-Nürnberg. After his PhD, Bernd Ludwig was guest professor und postdoc researcher at Freie Universität Bozen (faculty of computer science) and the Department of Information Engineering and Computer Science at Universitá degli Studi di Trento. As associate professor he worked again in Erlangen from 2010 to 2011.

In August 2011 he was appointed Professor for Informationslingusitik at Universität Regensburg.

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