Q. What is the primary advantage of latent Dirichlet analysis (LDA) over techniques like LSA?

View solution

Q. In the context of LDA, what are anchor terms?

View solution

Q. What role does the Dirichlet distribution play in LDA?

View solution

Q. How is the overall number of topics for a given LDA analysis determined?

View solution

Q. What does the generative model in LDA describe?

View solution

Q. What is the primary purpose of using Gibbs sampling or variational inference methods in LDA?

View solution

Q. How are the results of LDA typically evaluated?

View solution

Q. What is a useful indication for selecting appropriate numbers of topics when evaluating LDA from a domain perspective?

View solution

Q. How does LDA handle multilabel classification in the context of topic modeling?

View solution

Q. What does LDA's ability to uncover scientific topics "hidden" in documents provide from a university point of view?

View solution

Q. What is a challenge in introducing a flexible number of topics in LDA, as compared to clustering methods allowing for an adaptable number of clusters?

View solution

Q. What motivated the extension of the LDA approach to allow for an infinite number of topics?

View solution

Q. What does the Dirichlet process (DP) primarily model when used in the context of hierarchical Dirichlet process (HDP)?

View solution

Q. What is the key to solving the problem of documents not sharing topics in the hierarchical Dirichlet process (HDP)?

View solution

Q. What advantage does the hierarchical Dirichlet process (HDP) offer in topic modeling compared to LDA?

View solution

Q. How can the hierarchical Dirichlet process (HDP) be extended for more advanced applications?

View solution

Q. What is one advantage of correlated topic models (CTMs) over traditional LDA models?

View solution

Q. What kind of prior distribution is commonly used for correlated topic models (CTMs) to account for topic correlations?

View solution

Q. What challenge is associated with extending the correlated topic model (CTM) to accommodate a potentially unlimited number of topics?

View solution

Q. What is the main objective of hierarchical topic modeling?

View solution