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Soft Computing Question Paper - Dec 18 - Information Technology (Semester 8) - Mumbai University (MU)

## Soft Computing - Dec 18

### Information Technology (Semester 8)

Total marks: 80

Total time: 3 Hours
INSTRUCTIONS

(1) Question 1 is compulsory.

(2) Attempt any **three** from the remaining questions.

(3) Draw neat diagrams wherever necessary.

**1.a.**Explain with neat diagram supervised and unsupervised learning in NN

**1.b**Explain different activation functions in NN

**1.c**Explain with example any 2 operators involved in simple GA

**1.d**Explain different defuzzification techniques.

**2.a**Design Hebb Net to implement logical AND function. Use bipolar inputs and targets.

**2.b**Explain Error back propagation training Algorithm with the help of flowchart.

**3.a**Explain architecture of Bidirectional Associative Memory (BAM). How storage and retrieval performed in BAM.

**3.b**Explain the single layer Neural Network architecture using Perceptron model with suitable activation function.

**4.a**Two fuzzy relations are given by Find T as a max-min composition and max-product composition between the fuzzy relations.

**4.b**Sketch the 5 layer ANFIS architecture mentioning the task of each layer.

**5.a**Using Mamdani fuzzy mode, Design a fuzzy logic controller to determine the wash time of domestic washing machine. Assume that the inputs are dirt and grease on cloths. Use 3 descriptors for each input variables and five descriptors for output variables. Derive necessary membership function and required fuzzy rules for the application.

**5.b**Explain Mamdani's and Zadeh's interpretation of fuzzy rule.

**Write Short Note on:**

**6.a**Explain perceptron convergence theorem

**6.b**Binary Hopfield Network

**6.c**Delta Learning Rule

**6.d**McCulloh Pitts neuron model

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