ACCURACY of NEURO ONE learning algorithms.
This table tests the efficiency of Neuro One regression algorithms. It uses data certified by the NIST and described on this page or on the NIST official web page.
Each line represents one of the examples provided by the NIST. They are organized in three groups: easy, medium and hard examples.
The Algorithm column indicates which regression algorithm has been the most efficient for the chosen example: Levenberg-Marquardt (LM), Quasi-Newton (BFGS) or the Gradient algorithm (Grad).
Start 1 and Start 2 represent the initialisation of the parameters as they were proposed by the NIST: Start 1 initialises the parameters far from the final solution, whereas Start 2 initialises them close to the final solution.
For each one of those two initialisations, the iteration column indicates the number of iteration done by Neuro One for the considered algorithm (Levenberg-Marquardt, BFGS, Gradient)
The number of significant figures indicate how accurate Neuro One is in retrieving the parameters certified by the NIST. It is the minimum number of figures in common between all the parameters calculated by Neuro One and those certified by the NIST.
To get more accurate information, click on the example’s name.
Start 1: Hard Initialisation Start 2: Easy initialisation
Easy Examples Algorithm Iterations Nbr of significant figures Iterations Nbr of significant figures Remarks
Misra1 a L-M* 26 10 17 10  
Chwirut2 L-M* 15 8 10 10  
Medium Examples            
Kirby2 L-M* 14 10 12 9  
Hahn1 L-M* 31 9 17 10  
MGH17 L-M*     36 8 1
Gauss3 L-M* 11 9 13 10  
Misra1 c L-M* 21 11 19 11  
Misra1 d L-M* 17 8 18 10  
Hard Examples            
MGH09 L-M 188 7 44 7  
Thurber L-M* 49 7 40 7  
BoxBOD Grad+L-M 10+22 8 20 9 2
Rat42 L-M* 15 10 14 10  
MGH10 Grad+BFGS 20+2943 6 614 6 3
MGH10 L-M 6036 10 302 10  
Eckerle4 L-M* 37 10 18 10 4
Rat43 L-M* 22 9 12 7  
Bennet5 BFGS 1657 4 2672 4 5
Remark 1: No good result with "Start 1"
Remark 2: From "Start 1", 10 iterations have to be done with a gradient algorithm
Remark 3: From "Start 1", 20 iterations have to be done with a gradient algorithm
Remark 4: There are 2 possibilities for parameters beta1 and beta2. Depending on their initialisation, thay are either both positive or both negative
Remark 5: The number of iteration with L-M algorithm superior to 32000
 *: Indicates the examples that have been made with Neuro One default settings


Read the complete result table.

Go to the NIST models and data sets.

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© Netral - June 2007