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Table 1 Notation in LDA

From: Supporting systematic reviews using LDA-based document representations

K

Number of topics

\(\vec {\alpha }\)

Hyperparameter on document-topic distribution

\(\vec {\beta }\)

Hyperparameter on topics-word distribution

\(\vec {\theta }_{m}\)

A set of parameter vectors for generating a specific topic z in

 

document m

ϕ

A set of parameter vectors for generating word w, according to z

w n,m

nth word in document m

z n,m

Topic indicator for nth word in document m