摘要:
A method and apparatus for clustering documents from a set of documents includes issuing a request from an electronic device for documents which are relevant to the request. The documents believed to meet the request requirements are identified and the documents are thereafter supplied to a document clustering system. The document clustering system forms clusters of the documents by operation of the clustering system. A robustness criterion, by analogy with self-assembled physical systems, is applied to select the best, most robust, clustering. Robust clusters have a higher designability feature than other clusters which are generated where designability refers to a number of ways a particular cluster can be formed.
摘要:
A multi-agent control system controls a transport assembly for moving objects. The transport assembly is formed using sensors and actuators that are proximately coupled in physical space. The multi-agent control system includes a learning mechanism which takes advantage of the proximate coupling between the sensors and actuators. The learning mechanism improves system performance by making iterative changes to an interaction matrix that represents the organizational structure of the multi-agent control system. In operation, the learning mechanism makes iterative changes to several of the elements a.sub.ij, of the interaction matrix at one time, around a randomly chosen location (i,j) in the matrix. Changes to the interaction matrix continue to be made so long as the changes result in improved performance of the transport assembly. Advantageously, the learning mechanism enables the multi-agent control system to control the transport assembly without requiring knowledge of specific operating characteristics of the transport assembly.