Network Structures for Distributed Situation Assessment
RAND CORP SANTA MONICA CA
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This report investigates potential organizations for automated distributed sensor networks DSNs, i.e., dispersed nodes that can pool their information to perform accurate situation assessment. Laboratory experiments using a message puzzle task indicate that an anarchic committee organization, in which all nodes communicate with one another, consistently outperforms the dynamic hierarchical cone organization, in which communications is constrained and information must be obtained only from lower-level nodes. These experiments support the contention that DSNs must emphasize cooperative problem-solving rather than problem reduction or subgoaling. A computer-based design that minimizes redundant communications in hierarchical organizations by using model- based reasoning to form expectations that guide, limit, and reduce reporting frequency is described. Finally, a method for representing hypotheses to minimize communication requirements--the process assembly network--is suggested. This concept uses active hypotheses processes that are responsible for predicting their own evolution over time.
- Computer Hardware
- Military Operations, Strategy and Tactics