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NLP - Quiz -3 Questions and Answers Fully Solved $13.49   Add to cart

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NLP - Quiz -3 Questions and Answers Fully Solved

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Exam of 4 pages for the course NLP at NLP (NLP - Quiz -3)

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  • October 31, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
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NLP - Quiz #3

How to get an optimal tag assignment? - answer Viterbi Decoding

Greedy decoding - answer make your tagging decisions left to right, but decide the best
tag immediately at each point (instead of waiting until the end of the sequence)

Viterbi Decoding is ______________ programming - answer DYNAMIC
PROGRAMMING!

What's dynamic programming? - answer An efficient approach to breaking down
problems to make a full solution from partial solutions.

Time complexity for greedy decoding? – answer O(NC)

Viterbi decoding - answer examine all possible tag assignments left to right, at each
point identifying the best previous state for each state and what the resulting score
would be

Time complexity for viterbi decoding? - answerO(N,C^2)

Viterbi decoding data structures? - answerMatrix ; 2D list

Classification - answerassigning one or more classes to each item (AKA instance) by
predicting the best class(es) for the item

Class - answera label that can be assigned to an item

Features - answeroften we convert the item being classified into features before
classifying it

text classification process - answer1. Choose an initial set of features, a representation
of each piece of data (instance)

2. Train a model

3. Tune the model by measuring performance on the devset
Adjust hyperparameters
Change features
Change model if needed

4. When you have a final model or set of models, evaluate performance on the test set

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