Shahab D. Mohaghegh (Ed.), Saud M. Al-Fattah (Ed.), Andrei's Artificial Intelligence & Data Mining Applications in the PDF

By Shahab D. Mohaghegh (Ed.), Saud M. Al-Fattah (Ed.), Andrei S. Popa (Ed.)

ISBN-10: 1613990642

ISBN-13: 9781613990643

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McNeill, D. : Fuzzy Logic, Simon & Schuster, New York City (1993). 11. , New York City (1995). 12. Fuzzy Logic and Control: Software and Hardware Applications, M. Jamshidi et al. , Englewood Cliffs, New Jersey (1993). 13. Zhanggui, L. : “Integration of Fuzzy Methods Into Geostatistics for Petrophysical Property Distribution,” paper SPE 49964 presented at the 1998 SPE Asia Pacific Oil and Gas Conference and Exhibition, Perth, Australia, 12–14 October. 14. C. : “Novel Approaches to the Determination of Archie Parameters II: Fuzzy Regression Analysis,” paper SPE 26288 available from SPE, Richardson, Texas (1993).

Tables 1 and 2 show test data, and Figs. 7 and 8 show diagnostic plots. The derivative curve is sampled first for 30 data points and normalized between 0 and 1. The normaI'ization procedure should be consistent with that used to normalize the training set examples. The normalized derivative curve is used as input to the neural nets. Fig. 9 shows the input curve and the activation levels in the output layer. ~ o o Output layer of the second net o :~ ~~ o o First net Second net ... o • Output layer of the first net Fig.

Fig. 1 is a schematic of a multilayer artificial neural net. It consists of nodes arranged in layers. The first layer is an input layer, the second is a middle or intermediate layer, and the last layer is an output layer. The input in each node, except for the nodes in the output layer, is propagated throughout the entire net by connections called links. Each link has a weight with either a positive (strengthening) or a negative (weakening) value. The activation level in the intermediate and output layer nodes is measured by a threshold function usually called a squashing or activation function.

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Artificial Intelligence & Data Mining Applications in the E&P Industry by Shahab D. Mohaghegh (Ed.), Saud M. Al-Fattah (Ed.), Andrei S. Popa (Ed.)


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