Monday, August 15, 2022

Natural Language Processing Multiple Choices Questions - HMM is a generative model

Multiple choices questions in NLP, Natural Language Processing solved MCQ, HMM is a generative model, Why HMM is referred as generative model?

Natural Language Processing MCQ - Hidden Markov Model (HMM) is a generative model

< Previous                      

                     Next >

 

1. A Hidden Markov Model (HMM) is a _____ which means that the model is specified by ______.

a) Discriminative model, P(X, Y)

b) Discriminative model, P(Y|X)

c) Generative model, P(X, Y)

d) Generative model, P(Y|X)

 

Answer: (c) Generative model, P(X, Y)

Hidden Markov Model (HMM) is a generative model. Generative models capture the joint probability p(X, Y).

Generative models calculate the conditional probability P(y|x) using the joint probability as follows;

P(y|x) = P(x,y) / P(x) = joint probability / prior probability of x


A generative model includes the distribution of the data itself, and tells you how likely a given example is. For example, models that predict the next word in a sequence are typically generative models because they can assign a probability to a sequence of words.


Discriminative models, in contrast, use no knowledge about the probability distributions that underlie a data set. They directly calculate the conditional probability, p(y|x), for a data set. They focus on discriminating between classes, as their name suggests, by analyzing the data to calculate decision boundaries between classes.

 

< Previous                      

                     Next >


*****************
Related links:


Top interview questions in NLP

NLP quiz questions with answers explained

Why HMM is a generative machine learning model?

Why HMM is not a discriminative model?

What is the difference between generative and discriminative models?

NLP Solved MCQ, Natural language processing solved mcq, language model solved mcq, perplexity solved mcq, nlp solved exercises

Blogger Widgets

Featured Content

Multiple choice questions in Natural Language Processing Home

MCQ in Natural Language Processing, Quiz questions with answers in NLP, Top interview questions in NLP with answers Multiple Choice Que...

All time most popular contents

data recovery