Answer the following questions
1)
a) Define NER and what it is useful for:
b) Give 3 examples of boundary issues in NER
c) Run NLTK’s NER model on the following sentence: “Trump is going to Paris on France’s
express train with John Kelly”
i) Show your code here:
ii) Calculate the accuracy of the model on this sentence
2)
a) What is the difference between polarity sentiment analysis and categorical sentiment
analysis? Give examples
b) Give 3 sentences that would be hard to get correct sentiment for. Each one should show
a different language issue.
i)
ii)
iii)
c) Code in python and report the polarity sentiment for the following sentence: “This is the
best exam in the world!”
i) Show your code here:
ii) Report the score:
3)
a) What are 3 key features of an imperative language?
i)
ii)
iii)
b) How does a functional language differ from imperative ?
4)
a) Explain a Zipf curve and what it detects.
b) Does a Zipf curve look the same in all languages?
What would cause a Zipf curve to be abnormal looking?
b) Draw a Zipf Curve. Label the X and Y axis and show
example values


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