Common English misspellings from Wikipedia 4107 misspellings as of 2009-10-29

This CFG parser offers a reasonable peformance (an f-score of 85%) with high-speed parsing (71 sentences/sec). If you need to parse a huge collection of documents such as a Web corpus, or to build an interactive (real-time) information extraction system, this parser could be useful.

syntactic parser for English. With a wide-coverage probabilistic HPSG grammar [1-6] and an efficient parsing algorithm [7-9], this parser can effectively analyze syntactic/semantic structures of English sentences and provide a user with phrase structures and predicate-argument structures. Those outputs would be especially useful for high-level NLP applications including information extraction, automatic summarization, and question answering, where the "meaning" of a sentence plays a central role.