Topic: Learning sequential functions with sub-symbolic properties
Details: It has been shown that morphophonological processes represented with subsequential functions can be learnt from finite samples of data (Jardine et al. 2014). We show that the size of such a sample can be significantly reduced if we change the representation of …
Topic: Identification in the limit from positive data with noise
Details: We consider the problem of identifying formal languages in the limit when the presentations of positive data are corrupted by noise. Two kinds of noise are considered separately: when the data systematically omits positive examples and when negative examples …
We often say that syntactic dependencies are in the computational classes SL and TSL over trees (Graf 2018 et seq). But what does that mean? Actually, there several ways to generalize the string classes to trees. One of these involves command strings (c-strings), which encode the c-commanders of some node …
Sequence-to-sequence (seq2seq) models are a class of neural network models that learn the mapping between given input and target sequences. These models take an encoder-decoder structure where the encoder reads the inputs and passes the encoded information to the decoder, and the decoder decodes the encoded information and writes outputs …
We will not be meeting this Friday, because of a Blitztalk that takes place 1:00-2:00 pm on the same day. The Blitztalk is part of the virtual open house for the next cohort of PhD students, which, as Thomas emphasizes, "is perhaps the most important event of the …
Piecewise Local Expressions (Lambert 2022) are a kind of regular expression language for describing certain kinds of formal languages easily using the notion of substring and subsequence containment. These will be reviewed in the beginning. Then we will spend time thinking how to develop a similar expression language (i.e …
Thomas will take a subregular look at syntactic grafts, a mechanism first proposed by Henk van Riemsdijk to explain constructions like "John went to I believe it was Chicago". Grafts have not seen wide adoption by syntacticians because they are considered too powerful. But Thomas will argue that they are …
In our first organizational meeting, Thomas discussed the schedule for the spring semester, 2023. Jeff will take over as the faculty organizer and Jack remains the student organizer for this semester.
Please note that, in the future meetings, we will be meeting at 1:30 pm on Fridays, instead of …