Neural Network Concept in Artificial Intelligence Essay

Neural Network Concept in Artificial Intelligence Abstract Since the 1980s there have been renewed research efforts dedicated to neural networks. The present interest is largely due to the difficult problems confronted by artificial intelligence, and due to the deeper understanding of how the brain works, the recent developments in theoretical models, technologies and algorithms. One motivation of neural network research is the desire to build a new breed of powerful computers to solve a variety of problems that have proved to be very difficult with conventional computers. Another motivation is the desire to develop cognitive models that can serve as an alternative way to artificial intelligence. Human brain functions have not yet†¦show more content†¦A neural network structure is based on: Node characteristics The nodes of a directed network are called processing units. The state of the unit represents the potential of a neuron. It can also be called activation. The state of a neuron is affected by its previous state, the total acc umulated input signals, and the activation function. As the signal generated at a neuron cell body is transmitted down the axon and then distributed to the synapses, the property of this transmission path may affect the ultimate signal that arrives at the synapses. This can be described by the output function of the unit. 1. Input Function: The synapses and the signal modulations are simulated by links and link functions in neural networks. The signals received by the unit in a neural network may come from different types of output signals (binary, continuous, symbolic), undergo modulations of different link functions, and the link can be of different types (inhibitory, excitatory). Ports for input signals are called sites. All incoming links are impinging upon the sites instead of directly upon the units themselves. 2. Activation Function: The total stimuli coming to a unit is defined to be the sum of the all signals coming from other units. The total stimuli to a node i can be wri tten as sitotal = à ¥j sij where sij is the signal at j-th site of i-th unit. The state of a activation of a unit can be either discrete orShow MoreRelatedArtificial Intelligence Concepts : The Future Of AI1711 Words   |  7 Pagesproponents to different concepts. Dr. Ayala, you’re a strong proponent of connectionism, while Dr. Ruiz is a strong supporter of symbol manipulation. Mr. Skep Ticks is a skeptic of the aforementioned concepts and believes that AIs cannot be intelligent. Intelligence, he believes, can only be simulated by systems but not created. Having all of you seated in front of me brings about the unique opportunity to ask if either of you believe that a machine can achieve intelligence. 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