Principal Investigator Stephanie Seneff
Project Website http://groups.csail.mit.edu/sls/technologies/nlp.shtml
TINA is a natural language understanding system developed by the Spoken Language Systems (SLS) Group. This natural language system parses sentences using a probabilistic context-free grammar. The probabilistic model uses an approach called layered bigrams to estimate the likelihood of a particular parse. The underlying syntactic grammar is augmented with semantic tags allowing TINA to extract a semantic representaion of a sentence in the form of a semantic frame.