Topic Modeling, Data Science, Machine Learning, NLP, Tips And Tricks.
more modes in the multimodal objective function, but it converges more slowly. You MUST set 0.5 < learning_decay ≤ 1 for LDA to converge (this is true of any SGD algorithm, which must satisfy the Robbins-Monro condition). Interestingly, gensim’s default value is 0.5, which tricks clueless users