SSN Parsing Package, Release 1.0


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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Scotland License.


This package implements a statistical syntactic parser for natural language sentences. It estimates the probability of a parse using a neural network architecture for structure processing called Simple Synchrony Networks.


This package includes two trained parsers which can be used to parse English text. It also supports training new generative models or new conditionally-trained models. For a description of the generative SSN parsing model, see [Henderson, NAACL 2003]. For a description of conditional training with this model see [Henderson, ACL 2004]. A future version of this package will include the code to support deriving data-defined kernels from SSNs [Henderson and Titov, ACL 2005], [Titov and Henderson, IJCNN 2005].


This software was originally written by James Henderson and modified substantially by Ivan Titov. Copyright (2005) is held by the Universities of Geneva and Edinburgh.