MIS 309--Neural Networks

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What happens in genetic algorithm?

"Survival of the fittest"

Why are neural networks used more often?

1. Cost of software 2. Unfamiliarity with the field 3. Unfamiliarity with how to construct an NN with software

In developing an NN, several things to consider:

1. How good is the current method? 2. How important is accuracy? 3. Do you have sample data to train? 4. Do you have NN software and know how to use it?

Neural networks are accurate ________%.

73.46

The two main way to train an NN are ________ and ________.

Backpropagation; genetic algorithm

Speech recognition can be used to ________ and to ________.

Generate text; control your computer

Mean absolute percentage error

MAPE

Models human reasoning yb taking a biological approach rather than a boolean logic approach as with an expert system.

Neural network (NN)

Widely used for statistics, but it has a limited neural net capability

SPSS

What happens in backpropagation?

The error between the guess and actual value is used to adjust the weights

What is the major difference between NN and an expert system?

You need data set for training a NN and you need to know rules for an expert system.


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