Neural Networks: Definition
Neural computing is the study of networks of adaptable nodes
which, through a process of learning from task examples, store
experiential knowledge and make it available for use.
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What Are Neural Networks?
A computing model, inspired by the mammalian neural system,
composed of many simple, highly interconnected processing
units.
Neural network models are algorithms for cognitive tasks, such as
learning and optimization, which are in a loose sense based on
concepts derived from research into the nature of the brain.
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What Are Neural Networks?
Neural network model is a directed graph with the following
properties:
A state variable n
i
is associated with each node i.
A real value weight w
ij
is associated with each link from node i
to node j.
A real value bias �
i
is associated with each node i.
A transfer function f
i
(n
j
, w
ij
, �
i
) is defined, for each node i,
which determines the state of node i.
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What Can ANN Do?
Biological
Modeling the retina
Modeling brain disorders (ADD)
Business
Evaluate probability of oil in geological formation
Identify and filter promotion and job applicants
Mine corporate databases for business rules
Financial
Assessing credit risk
Identify forgeries
Interpret handwritten forms
Predict portfolio and stock values
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What Can ANN Do?
Manufacturing
Automated robot control systems
Control material flow
Optimize production lines
Quality inspection
Medical
Analyze speech in hearing aids
Diagnose and prescribe treatment by symptoms
Monitor surgery and recovery
Read X-rays and CET/PET Scans
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