Biological and Mechanical Syst
Biological and Mechanical Systems of Thought The basic concepts of neural networking have existed since the beginnings of computer science. The driving force behind neural networks is the desire to have intelligent machines and systems. Over the past century, scientists and academics from many fields have collaborated to work on neural networks. Neural networks are designed to mimic the processes of the human brain and to learn complex actions by recognizing patterns and rules within a given data set. The physical structure, terminology, and theory of artificial neural networks are strongly tied to neurophysiology and psychology. Organic neurons function by firing a charge, essentially similar to an electrical charge being released by a switch. Understanding the physical structure of the organic neuron is important, as it is the basis of artificial neural networking. Axon terminals, the output sections of neurons, are connecters to other neurons' dendrites, the inputs sections, by synapses. When a neuron "fires" an electrical signal is transmitted along the axon, which triggers a release of specific proteins into the synapse. These proteins diffuse through the synapse and bind to receptors on another neuron's dendr
Traditional computer programs function by receiving a list of commands from a user and executing them. Each layer consists of groupings of non-connected neurons, which receive messages from their lower layer and send them to their upper layer. This process causes networks to slowly learn, improving as time and/or data increases. Essentially, the analytical paradigm focuses on learning rules, which it can then apply to new data sets. As more and more protein molecules bind to a neuron's receptor, a "charge" is built up in the receiving neuron. Back-propagation takes inputs and produces outputs. While initially they perform poorly, over time they can and often do generate high probability rates of success. In supervised learning, a teacher provides the network with rules that it incorporates into its structure. Motor neurons receive messages from the CNS and trigger physiological responses, such as muscle movement. The method that he used is commonly referred to as supervised learning, as the network relied upon a human teacher to inform the network that its solution was correct or incorrect. In both systems, the complex processing is handled by the intermediate grouping of neurons. Once the charge builds up to a certain level, its threshold, a chain reaction occurs. Conceptually both neuron models function as simple Boolean expressions. Their ability to learn is due to the parallel architecture of the mechanical systems and their biological counterparts in the human brain. Neural networks are a potentially useful tool, as they represent systems that can incorporate data and learn complex processes.
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