Analgesic Something that relieves pain. ANDA Abbreviation for Abbreviated New Drug Application Artificial Neural Networks Artificial Neural Networks (ANNs) are computational paradigms which implement simplified models of their biological counterparts, biological neural networks. Artificial Neural Network is a system loosely modeled on the human brain. An Artificial Neural Network (ANN) is an information processing paradigm that is inspired by the way biological nervous systems, such as the brain, process information. The key element of this paradigm is the novel structure of the information processing system. It is composed of a large number of highly-interconnected processing elements (neurons) working in unison to solve specific problems. ANNs, like people, learn by example. An ANN is configured for a specific application, such as pattern recognition or data classification, through a learning process. Learning in biological systems involves adjustments to the synaptic connections that exist between the neurons. This is true of ANNs as well.