Master Thesis - Department of Computer Science

Mirnalinee, Shreyasee, Lalit, Manisha, Deepti, Surya, Abhilaash, Shivani, Sunando,
Aakansha for all their helps and making our lab a very lively to do research. My
sincere thanks to Poongudi for helping me in any official work whenever I needed it.
I would like to thank my parent and sisters for their incredible love, prayers,
enthusiasm, and encouragement. My mother, the perfect dream-maker is the source
of immense inspiration to me. “To do something great is not just to do well in study
but to be a good human being”: this is the lesson she taught me. I would also like to
mention that I am the happiest person being blessed with such a nice father who has
always given me the complete freedom in all respects. He is the first teacher in my life
who taught me “Learn to live by struggle. Struggle is the color of life”. The celestial
smile on the faces of my sisters is my heaven. I can do anything to keep them intact.
Finally, I would like to mention about somebody who played a major role during
my research. He is the most valuable gift that God has blessed me. I am extremely
fortunate to have his company. He is a true friend and an excellent critic. I don’t
have any word to thank him. His perception for research redefined my concepts. I will
never forget the words , he used to say me: “Do your work, don’t think about result”.
His never-ending inspiration is still my powerhouse. His hard working attitude and
his true love towards humanity really changed my view towards life. It is his delightful
company which helped me to stand up and express my best after every failure. Every
time I come across him I get a feeling of positive jealousy from him. He is none other
than my dearest and beloved friend Ashish. May god bless him.
iv
Arpita Patra