Bag_of_words-reviews

Bag of words for feature extraction and then we use a svm for th classification

1 Gather all the words that exist in the dataset and apply the morphological processing.
2 Remove the "Stopwords".
3 Remove the punctuation marks, and make a sorted list where each word appears once.
4 Replace every review with a feature vector.

Confusion Matrix

At test set

	Predicted Label
	Negative	Positive
Negative	362	91
Positive	102	345

Results

Results at test set :

	Accuracy	Presicion	Recall	Fmeasure	Spesificity
SVM	0.78	0.79	0.77	0.78	0.79