Download JNTUH MCA 4th Sem R17 2020 November 844AC Machine Learning Question Paper

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Code No: 844AC R17

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

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MCA IV Semester Examinations, October/ November - 2020

MACHINE LEARNING

Time: 2 Hours Max.Marks: 75

Answer any five questions

All questions carry equal marks

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1. Construct decision tree for the training examples given in the table for Play tennis domain using Gain Ratio algorithm. Show clearly formulae used and calculations done at each stage for building the decision tree using the algorithm. [15]
   Outlook Temp Humidity Windy Playtennis
   Sunny 75 70 true play
   Sunny 80 90 true no play
   Sunny 85 85 false no play
   

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   Sunny 72 95 false no play
   Sunny 69 70 false play
   Overcast 72 90 true play
   Overcast 83 78 false play
   Overcast 64 65 true play
   

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   Rainy 81 75 false play
   Rainy 71 80 true no play
   Rainy 65 70 true no play
   Rainy 75 80 false play
   Rainy 68 80 false play

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2. Write the ID3 algorithm for Decision tree learning. [15]
3. Write the derivation of Back propagation Learning Rule. [15]
4. Write the Back propagation Learning Algorithm for Multi layer networks. [15]
5. Write following algorithms:
   a) Gibb’s Algorithm b) EM algorithm [15]

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6. Explain the working of Bayesian belief networks. [15]
7. Explain the evaluation problem of HMMs. [15]
8. Explain the Inductive-Analytical approaches to learning. [15]

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