Probabilistic latent semantic analysis

Probabilistic latent semantic analysis (PLSA) is a way of analyzing text. It looks at the words in a text and tries to understand the relationships between them. To do this, it looks for patterns in the text that show what words are more likely to appear together. PLSA takes these patterns and uses them to make predictions about what words may appear in other texts. By understanding these patterns, we can get a better understanding of the meaning of a text.