To improve a negotiator's ability to recognise bidding strategies, we pro-actively provide explanations that are based on the opponent's bids and the negotiator's guesses about the opponent's strategy. We introduce an aberration detection mechanism for recognising strategies and the notion of an explanation matrix. The aberration detection mechanism identifies when a bid falls outside the range of expected behaviour for a specific strategy. The explanation matrix is used to decide when to provide what explanations. We evaluated our work experimentally in a task in which participants are asked to identify their opponent's strategy in the environment of a negotiation support system, namely the Pocket Negotiator (PN). We implemented our explanation mechanism in the PN and experimented with different explanation matrices. As the number of correct guesses increases with explanations, indirectly, these experiments show the effectiveness of our aberration detection mechanism. Our experiments with over 100 participants show that suggesting consistent strategies is more effective than explaining why observed behaviour is inconsistent.
|Title of host publication||18th International Conference on Autonomous Agents and Multiagent Systems, AAMAS 2019|
|Publisher||International Foundation for Autonomous Agents and Multiagent Systems (IFAAMAS)|
|Number of pages||3|
|Publication status||Published - 2019|
|Event||18th International Conference on Autonomous Agents and Multiagent Systems, AAMAS 2019 - Montreal, Canada|
Duration: 13 May 2019 → 17 May 2019
|Conference||18th International Conference on Autonomous Agents and Multiagent Systems, AAMAS 2019|
|Period||13/05/19 → 17/05/19|
Bibliographical noteGreen Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
- Aberration detection
- Bidding strategies
- Explanation matrix
- Negotiation support system
- Strategy recognition