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Natural Language Processing Project

Group Members - Afsal P,Nandu D,Vishnu V

Sentiment Analysis

500 reviews were collected from e-commerce websites such as amazon,flipkart,snapdeal

Part A

Training : Multinomial Unigram naive bayes model with laplace smoothing
Evaluation : 10 fold cross validation
Report
Individual fold accuracies are

  • 1 0.92
  • 2 0.92
  • 3 0.86
  • 4 0.84
  • 5 0.86
  • 6 0.9
  • 7 0.86
  • 8 0.86
  • 9 0.86
  • 10 0.94
    Average Accuracy is 0.882
Part B

Training : Multinomial Bigram naive bayes model with laplace smoothing
Evaluation : 10 fold cross validation
Report
Individual fold accuracies are

  • 1 0.88
  • 2 0.92
  • 3 0.84
  • 4 0.84
  • 5 0.88
  • 6 0.84
  • 7 0.84
  • 8 0.86
  • 9 0.92
  • 10 0.9
    Average Accuracy is 0.872

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