How to code up Neural Networks ?

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Explorer
Explorer 2014-2-11
回答： Greg Heath 2014-2-15
I am new to Neural Networks. I have to code up whatever is written in below image.
Is there a need of nprtool to do that?

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采纳的回答

Greg Heath
Greg Heath 2014-2-12
I suggest using a standard classifier with patternnet, one hidden layer, and target columns from eye(23).
Use as many defaults as possible.
Search using
greg patternnet
for examples.
Hope this helps.
Thank you for formally accepting my answer
Greg
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Explorer
Explorer 2014-2-12
编辑：Explorer 2014-2-12
I have descriptor vector of 1x360 size and for feature matching I would like to do same as written in image of research paper.
Please tell me stepwise how to do that in MATLAB.
I don't have much knowledge of Neural Networks. Its not my subject.

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更多回答（2 个）

Greg Heath
Greg Heath 2014-2-12
I am confused by your question
"Is there a need of nprtool to do that?
Please clarify that statement.
Comment
The figure shows a 3-layer feed-forward multilayer perceptron neural network with three neuron layer outputs ai (i=1:3).
The input box indicates a layer of non-neuron fan-in-units.
There are two hidden neuron layers and an output neuron layer.
One hidden neuron layer is sufficient for a universal approximator.
One hidden layer FFMLPs are the "standard" configuration
The standard output for a 23-class classifier/pattern-recognizer is a 23 node output layer. The net is then trained with column vectors from the 23-dimensional unit matrix eye(23).
So, are you claiming that the extra hidden layer and single output learns faster and better than the standard classifier with one hidden layer and 23 outputs?
  1 个评论
Explorer
Explorer 2014-2-12
编辑：Explorer 2014-2-12
I am confused by your question
"Is there a need of nprtool to do that?
Please clarify that statement. _________________________________________________________________________
nprtool = neural pattern recognition tool
Will this tool be required to do whatever is said in above image. _________________________________________________________________________
I am not claiming. I am taking follow a research paper for my sign language recognition project. _________________________________________________________________________
The above images is of a research paper, F. E. Luis-Pérez, F. Trujillo-Romero, W. Martinez-Velazco, Control of a service robot using the Mexican Sign Language, 10th Mexican International Conference on Artificial Intelligence (MICAI 2011), Advances in Soft Computing, Lecture Notes in Artificial Intelligence, Springer, Vol. 7095, Proceedings, Part II, pp. 419-430, Puebla, Mexico, Nov. 26-Dec. 4, 2011, ISBN: 978-3-642-25329-4. ISSN: 0302-9743.

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Greg Heath
Greg Heath 2014-2-15
Once you have the input matrix of N I-dimensional column vectors and target matrix of N c-dimensional column unit vectors you can use the code from one of my patternnet postings.
Searchwith
greg patternnet
Hope this helps.
Thank you for formally accepting my answer
Greg

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