Fig. 1From: Understanding big data themes from scientific biomedical literature through topic modelingPlate notation of topic modelling, plates are shown as rectangles and the arrows are conditional dependencies. Shows the relations between known variables (documents D, number of words \(N_{(d)}\), and words w), latent variables (multinomial distributions \(\theta ^{(d)}\) and \(\phi ^{(z)}\), and word to topic assignment z), and hyperparameters (\(\alpha\) and \(\beta\))Back to article page