Journal of Applied Sciences ›› 1992, Vol. 10 ›› Issue (3): 247-251.

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COEFICIENTS ACQUISITION IN DATABASE SYSTEM

WU XINDONG, WANG HAO   

  1. Hefei University of Technology
  • Received:1990-12-11 Revised:1991-08-25 Online:1992-09-30 Published:1992-09-30

Abstract: This paper introduces the coefioients acquisition and processing module (CP) in the KESHELL Ⅱ system. The regression, fitting and other mathematical methods are adopted to acquire the function expression of numeric attributes from the object database. The DBA can describe the virtual numeric attributes in explicit functions by the OP module.

Key words: ooefloients acquisition, relational database, regression, fitting