Question

Data Analytics

1. Which of the following statements are correct with regards to Topic Modeling?

A. LDA (Linear discriminant Analysis) is the one of the algorithms that can be used to perform topic mideling

B. Number of topic terms are directly proportional to the size of the data

C. Selection of the number of topics in a model depends on the size of data

D. It is a supervised learning technique

E. None of the above

Answer 1

A) is false.

Because LDA(Linear discriminant analysis) is used for supervised learning techniques like topic classification etc. For Unsupervised learning techniques like topic modelling or topic clustering,we need unsupervised learning techniques like Latent Dirichlet Allocation (LDA)

B) is false

Because number of topic terms are not dependent on size of data

D) is false because Topic modelling is unsupervised not supervised

C) is true. becauss Selection of number of topics in a model depends on size of data

Because Selection of number of topics is directly proportional to size of data.

so C) is true