LDA Topic Model Instability

No two LDA Topic Models are the same. What’s a topic modeler supposed to do?

After spending hours tuning an LDA Model, nothing will spoil a topic modeler’s day like realizing just how different one run of their model is from the next. The LDA algorithm is stochastic and models generated with the same parameters over the same data will produce different results. This is a feature — not a bug of the algorithm …

ensemble lda nlp statistics topic modeling