Hi. I need help with Naive Bayes assignment. Please is there anyone who can help
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The most common mistake on this assignment is missing this section of the instructions for get_word_frequency:
4.1.1 Handling 0 in the Product
Encountering a word that only appears in spam emails or never appears in a spam email may result in 𝑃(word∣spam)=0
(or the ham analog), leading to the entire product being 0
. This scenario is undesirable as a single word could make the entire probability 0
. To mitigate this, you will start by counting spam/ham appearances for every word from 1. By artificially assuming that there is at least one spam and one ham email with every word, you eliminate the possibility of 0
appearing in the computations.