... factors based on data series. It is also, in fact, a method of quantification analysis on the ambulatory data. © Emerald Group Publishing Limited 2004 Cybernetics Relational databases Data analysis Medical administrative data processing Medical information systems Using GRA...

... results of using this approach and compare it with results using a neural network. As shown in the example of the previous section, a relation can be described as a two‐dimensional table whose columns correspond to attributes and whose rows correspond to tuples. A relational database is perceived...

... and Q2 Q/R, if Q1 Q2, then Q2 Q2 = is not always valid. The author would like to thank Miss Yang Xinghua who typed this article. Kybernetes, Vol. 22 No 2, 1993, pp 51-55. © MCB University Press, 0368-492X Kybernetes 22,2 52 Relational databases, based on relational algebras, are nowadays...