Prerequisites: Genetic algorithms, Artificial Neural Networks, Fuzzy LogicHybrid systems: A Hybrid system is an intelligent mechanism that is framed by combining at leastern two intelligent innovations choose Fuzzy Logic, Neural netfunctions, Genetic algorithms, reinforcement learning, and so on The combination of various approaches in one computational model makes these devices possess a prolonged array of capabilities. These units are qualified of reasoning and finding out in an unspecific and also imspecific environment. These devices can provide human-favor specialization choose domain knowledge, adaptation in noisy settings, etc.
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Types of Hybrid Systems:Neuro-Fuzzy Hybrid systemsNeuro Genetic Hybrid systemsFuzzy Genetic Hybrid systems(A) Neuro-Fuzzy Hybrid systems:The Neuro-fuzzy mechanism is based on fuzzy mechanism which is trained on the basis of the working of neural network-related theory. The discovering procedure opeprices only on the local indevelopment and causes just neighborhood transforms in the underlying fuzzy device. A neuro-fuzzy mechanism deserve to be seen as a 3-layer feedforward neural netjob-related. The initially layer represents input variables, the middle (hidden) layer represents fuzzy rules and the 3rd layer represents output variables. Fuzzy sets are encoded as link weights within the layers of the network, which gives usability in handling and training the model.
Working flow:In the input layer, each neuron transmits outside crisp signals directly to the following layer.Each fuzzification neuron receives a crisp input and also determines the degree to which the input belongs to the input fuzzy collection.The fuzzy dominance layer receives neurons that reexisting fuzzy sets.An output neuron combines all inputs using fuzzy procedure UNION.Each defuzzification neuron represents the single output of the neuro-fuzzy mechanism.Advantages:It deserve to handle numeric, linguistic, logic, etc type of information.It have the right to regulate imprecise, partial, vague, or imperfect indevelopment.It deserve to resolve conflicts by cooperation and also aggregation.It has self-learning, self-organizing and self-tuning capabilities.It have the right to mimic the huguy decision-making process.Disadvantages:Hard to develop a design from a fuzzy systemProblems of finding suitable membership values for fuzzy systemsNeural netfunctions cannot be offered if training data is not obtainable.Applications:Student ModellingMedical systemsTraffic control systemsForecasting and also predictions(B) Neuro Genetic Hybrid systems:A Neuro Genetic hybrid device is a device that combines Neural networks: which are capable to learn miscellaneous jobs from examples, classify objects and establish relations between them, and a Genetic algorithm: which serves vital search and also optimization approaches. Genetic algorithms have the right to be used to boost the performance of Neural Netfunctions and also they have the right to be used to decide the connection weights of the inputs. These algorithms can likewise be offered for topology selection and also training netfunctions.


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Disadvantages:Interpretation of results is challenging.Difficult to construct membership worths and rules.Takes lots of time to converge.Applications:Mechanical EngineeringElectrical EngineArtificial IntelligenceEconomicsSources:(1)https://en.wikipedia.org/wiki/Hybrid_intelligent_system(2)Principles of Soft Computing