A Unified Knowledge Base for Companion-Systems – A Case Study in Mixed-Initiative Planning. Behnke, G., Schiller, M., Ponomaryov, D., Nothdurft, F., Bercher, P., Minker, W., Glimm, B., & Biundo, S. In Proceedings of the International Symposium on Companion Technology (ISCT 2015), pages 43–48, 2015.
A Unified Knowledge Base for Companion-Systems – A Case Study in Mixed-Initiative Planning [pdf]Paper  abstract   bibtex   
Companion systems aim to extend the abilities of ordinary technical systems, for instance by modeling the user's situation, by recognizing the user's intentions, and by being able to interact with the user and to adapt to her/him. Such a system depends on planning capabilities to determine which actions are necessary to achieve a particular goal. In many situations it may not be appropriate for a companion system to develop plans on its own, but instead it has to integrate the user while creating the plan, i.e., it needs to be mixed-initiative. Based on earlier work, we demonstrate how a central knowledge base for a mixed-initiative planning system can be designed. We outline various benefts our approach brings to bear within a companion system. Lastly, we present several requests a user might issue towards the mixed-initiative planning system and how they can be answered by harnessing the knowledge base.

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