In order to improve the performance of information retrieval system, a retrieval algorithm combining multi-query data fusion with positive relevance feedback is presented.

Study of relational multi-database query platform (RMQP);

This paper introduced dimensional parameters and nondimensional parameters in time domain analysis,built multi-data fusion fault diagnosis system,which included data level fusion module,feature level fusion module and decision level data fusion module,adopted the neuronal networks to conquer the shortcoming of neural network and to solve the abuse of evidence theory which is difficult to gain BPA.

The design for power data query system based on Web technique;

Energy-efficient data query protocol for wireless sensor network;

Data Query Based on JDO Query Language;