3. ModernModern biologybiology::
•Cell - element, which is able to process the
information
•Neuron – element of brain’s cellular
construction
•Neuron implements an information reception and
transfer as impulses of nervous activity
•Impulse’s character is electrochemical
• Axon – process of nerve cell, which is impulse’s
tract from the body of cell to all organs and the
others nerve cells.
4. IInteresting facts:nteresting facts:
Body of cell measures 3 - 100 microns.
The giant squid’s axon’s thickness is 1 millimetre
and its length is several metres.
General number of neurons in human’s central
nervous system is 100.000.000.000.
Every cell is connected with 10.000 others
neurons.
5. ANN (Artificial Neural Nets).
Units & WeightsUnits & Weights
Units
◦ Sometimes
notated with unit
numbers
Weights
◦ Sometimes give
by symbols
◦ Sometimes given
by numbers
◦ Always represent
numbers
◦ May be integer or
real valued
1
2
3
4
0.3
-0.1
2.1
-1.1
1
1
Unitnumbers
Unitnumber
1
2
3
4
W1,1
W1,2
W1,3
W1,4
8. Amazing simplicity
Adviser in design’s problem
Solver wizard
Abundant visualization tools
STATISTICA Neural Networks
9. STATISTICA Neural Networks:
work with data
Different input data :
– number variable;
– Input and output parameters;
– Subset of researches
File’s import, usage of clipboard.
Embedded algorithms.
10. STATISTICA Neural Networks:
work with net
Quality rating:
– regression’s statistics;
– classification’s statistics;
Scanning of data and different researches.
The creation of forecast.
11. STATISTICA Neural Networks:
network building
Create and storage network sets.
Choice of networks type:
– Multilayer perceptron (MLP);
– Radial Basis Function (RBF);
– Kohonen network.
Setting error function and activate function for
different layers.
Access to weights for all neurons .
12. STATISTICA Neural Network:
complementary function
Genetic algorithm of choosing input data
Regularizing of weights
Sensitivity analysis
Possibility to make a loss matrix
13. STATISTICA Neural Networks:
creation application
Cooperation with sistem STATISTICA: data and
diagram communications.
Application programming interface (API) for
creation applications,which are functioning in
Visual Basic and C++.
14. We have discussedWe have discussed::
The Biological neural networks
Artificial Neural Nets
Features of program package
«STATISTICA Neural Networks»