Decisions about more sophisticated encoding of nonlinguistic information may thus require more knowledge about children's representations of the world around them We find (1) that it is possible to jointly infer both meanings and a segmentation in a fully unsupervised way and (2) that doing so improves the segmentation performance of our model.
by counting the co-occurrences, we also compute a gold standard probability distribution for the words given the topic, P (w|z, x = 1).