What are the different independence assumptions in hMM & Naive Bayes ?

Both the hMM and Naive Bayes have conditional independence assumption. hMM can be expressed by the equation below :         Second equation implies a conditional independence assumption: Given the state observed variable is conditionally independent of previous observed variables, i.e. and Naive Bayes Model is expressed as:     is the feature…

What are the advantages and disadvantages of using naive bayes for spam detection?

Disadvantages: Naive bayes is based on the conditional independence of features assumption – an assumption that is not valid in many real world scenarios. Hence it sometimes oversimplifies the problem by saying features are independant and gives sub par performance. There are chances of under-fitting due to this assumption.  Advantages: However, naive bayes is very…