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Introduction to Neural Networks and Fuzzy Logic

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1

2 Introduction to Neural Networks and Fuzzy Logic
Textbooks Textbook: “Neural Networks. A Comprehensive Foundation”, 2nd Edition, Simon Haykin, Prentice Hall, 1999. “Fuzzy Systems Theory and Its Application”, Toshiro Terano et. al., Academic Press, 1992.

3 Grade Policy Final Grade = Academic + 9 Values + Extra Points
Introduction to Neural Networks and Fuzzy Logic Grade Policy Final Grade = Academic + 9 Values + Extra Points Academic = 6% Notes + 16% Homework + 16% Quizzes % Midterm Exam + 26% Final Exam 9 Values = 6% Peer Assessment + 4% Lecturer Assessment Your handwritten note will be collected after Quiz 3, and given back to you on the next class. Handwritten note contributes 6% of final grade. Homeworks will be given in fairly regular basis. The average of homework grades contributes 16% of final grade. Written homeworks are to be submitted on A4 papers, otherwise they will not be graded. Homeworks must be submitted on time, on the day of the next lecture, 10 minutes after the class starts. Late submission will be penalized by point deduction of –10·n, where n is the total number of lateness made.

4 Introduction to Neural Networks and Fuzzy Logic
Grade Policy There will be 3 quizzes. Only the best 2 will be counted. The average of quiz grades contributes 16% of final grade. Make up of quizzes must be held within one week after the schedule of the respective quiz. Midterm exam (26%) and final exam (26%) follow the schedule released by AAB (Academic Administration Bureau).  Date of the lecture when the homework is issued Heading of Written Homework Papers (Required)

5 Introduction to Neural Networks and Fuzzy Logic
Grade Policy Extra points will be given if you solve a problem in front of the class. You will earn 1 or 2. Lecture slides can be copied during class session. It is also available on internet. Please check the course homepage regularly. The use of internet for any purpose during class sessions is strictly forbidden.

6 Introduction to Neural Networks
Validation: Generally, means confirming that a product or service meets the needs of its users. Testing whether the mathematical model is good enough or not to describe the empirical phenomenon.

7 Experimental Modeling
Neural Networks Introduction Experimental Modeling Experimental modeling consists of three steps: The choice of model class The choice of model structures (number of parameters, model order, time delay) The calculation of the parameters and time delay. The model may be chosen to be linear, nonlinear, or multi locally-linear. A-priori (prior, previous) knowledge of the system to be modeled is required in most cases. Artificial Neural Networks (or simply Neural Networks) offers a general solution for experimental modeling.

8 Experimental Modeling Using Neural Networks
Introduction Experimental Modeling Using Neural Networks A neural network is a massively-parallel distributed processor made up of simple processing unit, which has natural propensity for storing experiential knowledge and making it available for use. It resembles the brain in two respects: Knowledge is acquired by the network from its environment through a learning process. Interneuron connection strengths, known as synaptic weights, are used to store the acquired knowledge.

9 Biological and Artificial Neuron
Neural Networks Introduction Biological and Artificial Neuron Structure of Biological neuron Activation function Structure of Artificial neuron

10 Neural Networks Introduction Activation Function Any continuous (differentiable) function can be used as an activation function in a neural network. The nonlinear behavior of the neural networks is inherited from the used nonlinear activation functions. Tangent sigmoid function Logarithmic sigmoid function Linear function Radial basis function

11 Network Architectures
Neural Networks Introduction Network Architectures Single layer feedforward network (Single layer perceptron) Input layer Output layer Multilayer feedforward network (Multilayer perceptron) Input layer Hidden layer Output layer

12 Network Architectures
Neural Networks Introduction Network Architectures Diagonal recurrent networks Fully recurrent networks Input layer Hidden layer Output layer Input layer Hidden layer Output layer Delay element in a recurrent network

13 Network Architectures
Neural Networks Introduction Network Architectures Elman’s recurrent networks Jordan’s recurrent networks

14 Preparation Assignment
Neural Networks Introduction Preparation Assignment Ensure yourself to install Matlab 7 or newer in your computer, along with Matlab Simulink, Control System Toolbox, and Fuzzy Logic Toolbox. Quizzes, Midterm Exam, and Final Exam will be computer-based.

15 Homework 1A This is an individual work.
Neural Networks Introduction Homework 1A This is an individual work. Conduct a literature research and prepare a short PowerPoint presentation about the applications and implementations of neural networks in area of: Manufacturing (Tamara) Robotics (Andre) Medics (Keanu) Military (Fikri) Administration/ Data Mining (Rudy) Sports/ Entertainment (Fadhilla) Recognition/ Identification (Alief) E-Commerce (Maulidya) Show the structure of the neural networks used in your presentation You will be given 15 minutes time for presentation on Monday, 22 January 2018.


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