Gal A. Kaminka's Publications

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On the design of coordinated diagnosis algorithms for teams of situated agents

Meir Kalech and Gal A. Kaminka. On the design of coordinated diagnosis algorithms for teams of situated agents. Artificial Intelligence, 171:491–513, 2007.

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Abstract

Teamwork demands agreement among team-members to collaborate and coordinate effectively. When a disagreement between teammates occurs (due to failures), team-members should ideally diagnose its causes, to resolve the disagreement. Such diagnosis of social failures can be expensive in communication and computation, challenges which previous work did not address. We present a novel design space of diagnosis algorithms, distinguishing several phases in the diagnosis process, and providing alternative algorithms for each phase. We then combine these algorithms in different ways to empirically explore specific design choices in a complex domain, on thousands of failure cases. The results show that different phases of diagnosis affect communication and computation overhead. In particular, centralizing the diagnosis disambiguation process is a key factor in reducing communications, while runtime is affected mainly by the amount of reasoning about other agents. These results contrast with previous work in disagreement detection (without diagnosis), in which distributed algorithms reduce communications.

Additional Information

The article's official web page is at: http://dx.doi.org/10.1016/j.artint.2007.03.005.

BibTeX

@Article{aij07meir, 
   author = {Meir Kalech and Gal A. Kaminka}, 
   title = {On the design of coordinated diagnosis algorithms for teams of situated agents}, 
   journal = AIJ, 
   year = {2007}, 
   OPTnote = {In Press}, 
   abstract = {Teamwork demands agreement among team-members to collaborate and coordinate 
 effectively. When a disagreement between teammates occurs (due to failures), team-members 
  should ideally diagnose its causes, to resolve the disagreement. 
  Such diagnosis of social failures can be expensive in communication and computation, 
  challenges which previous work did not address. We present a 
  novel design space of diagnosis algorithms, distinguishing several phases in the diagnosis process, 
  and providing alternative algorithms for each phase. We then combine these algorithms 
  in different ways to empirically explore specific design choices in a complex domain, 
  on thousands of failure cases. The results show that different phases of diagnosis affect 
  communication and computation overhead. In particular, centralizing the diagnosis 
  disambiguation process is a key factor in reducing communications, while runtime is 
  affected mainly by the amount of reasoning about other agents. These results contrast 
  with previous work in disagreement detection (without diagnosis), in which distributed algorithms 
  reduce communications.
   }, 
   wwwnote = {}, 
   volume = {171},
   pages = {491--513}
 } 

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