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Results tagged with sentiment-analysis
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not deleted
user 23305
Sentiment analysis refers to categorizing some given data as to what sentiment(s) it expresses. Usually, it refers to extracting sentiment from a text, e.g. tweets or blog posts.
30
votes
Accepted
NLP - why is "not" a stop word?
Stop words are usually thought of as "the most common words in a language". However, other definitions based on different tasks are possible.
It clearly makes sense to consider 'not' as a stop word …
- 6,452
4
votes
Accepted
Understanding of naive bayes: computing the conditional probabilities
Your formula is correct for one $w_i$, but if you want to classify a document, you need to compute $P(c | w_1,\ldots,w_N)$.
Then you have $$P(c | w_1,\ldots,w_N) = \frac{P(c)\cdot P(w_1,\ldots,w_N|c) …
- 6,452