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UPTU B.Tech Pattern Recognition ECS 074 Sem 7_2011-12.pdf ...
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Printed Pages-3
ECSO74
(Following Paper ID and Roll No. to be filled in your Answer Book
B.Tech.
(sEM. VX) THEORY EXAMTNATTON 201 1_r2 PATTERN RECOGNITION Time
: 3 Hours
Note
:-
1.
Tbtal Marlcs
(i)
Attempt all questions.
(iD
Make suitable assumption ifrequired.
Attempt any two parts
(a)
:
:
100
(10x2:20)
What do you mean by pattern recognition ? Explain. Describe design principles of pattern recognition system
with an example.
(b) (D
What do you mean by learning and adaptation
?
L,xplaln.
(ii) (c)
Write short note on pattern recognition approaches.
Explain the following and discuss their significance in pattern recognition with suitable example
(D (i,
:
Mean and Covariance
Chi Square Test.
ECSoT4|KIH-26642
[Turn Over
2.
Attempt any two parts
:
(10x2:20)
(a) What is Bay's Theorem ? Explain. Also discuss Bay's Classifier using some example in detail.
(b)
What is a discriminant function ? Discuss it in detail. In a
two class problem, the likelihood ratio is given
as
follows
:
p(xlC,) / p(xlC,) Write the discriminant function in terms of the likelihood ratio.
(c)
Describe the following with suitable example
:
(D NormalDensityFunction (iD UtilityTheory. 3.
Attempt any two parts
:
(10x2=20)
(a) What do you mean by dimension
reduction ? Discuss
Principal Component Analysis (PCA) algorithm for dimension reduction.
(b)
Write short notes on the following
(D (il) (c) 4.
:
Maximum-Likelihoodestimation. Expectation-maximization
Write a short note on Hidden Markov Model (HMM).
Attempt any two parts
:
(a) What do you meanby fuzzy decision
(10x2:20) making
?
Also discuss
the fuzzy classifi cation using suitable example.
(b) Write an algorithm for K-Nearest Explain.
ECS0T4tKlH-26642
neighbor estimation.
(c)
Write
(i)
a short note on the
following
:
Parametric vs. non-parpmetric pattern recognition methods.
(ir)
5. .
Parzen windows.
Write short notes on two ofthe following
(a)
\
:
(10x2=20)
What do you mean by supervised leaming and unsupervised
learning ? Explain. Discuss any unsupervised learning algorithm with some example.
(b)
What do you mean by clustering ? Explain. Discuss Kmeans clustering algorithm with suitable example.
(c)
Write short notes on the following
:
(D Clusteringvs.classification (iD Clustervalidation.
ECS0T4tKtH-26642
24625
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