Analyzing Bayesian Crosslingual Transfer in Topic Models.

S, T Source and target languages. They are interchangeable during Gibbs sampling. For example, when training English and German, English can be either source or target. w` A word type of language `. x` An individual token of language `. zx` The topic assignment of token x`. Sw` The sample of word typew`, the set containing all the tokens x` that are of this word type. Px` , Px`,k Px` denotes the conditional distribution over all topics for token x`. The conditional probability of sampling a topic k from Px` is denoted as Px`,k. D(`) The set of documents in language `. This usually refers to the test corpus. D̂(`) The array of document representations from the corpus D(`) and their document labels.