BLLIP

Description

The Brown Laboratory for Linguistic Information Processing (BLLIP) two CD-ROM corpus contains a complete, Treebank-style parsing of the three year Wall Street Journal (WSJ) collection from the ACL/DCI corpus, approximately 30 million words. The parsing and part-of-speech (POS) tagging for the entire archive were done using statistically-based methods developed by Eugene Charniak, Don Blaheta, Niyu Ge, Keith Hall, John Hale and Mark Johnson of BLLIP.

This corpus both overlaps and supplements the 1-million-word Penn Treebank (PTB) collection of parsed and POS-tagged WSJ texts.

The PTB project selected 2,499 stories from a three year WSJ collection of 98,732 stories for syntactic annotation. These 2,499 stories have been distributed in both Treebank-2 (LDC1999T42) and Treebank-3 (LDC1999T42) releases of PTB. Treebank-2 includes the raw text for each story. Three "map" files are available in a compressed file via ftp and provide the relation between the 2,499 PTB filenames and the corresponding WSJ DOCNO strings in TIPSTER.

Features

• Data type: text
• Data source(s): newswire
• Project(s): TIDES
• Application(s): natural language processing, parsing, tagging
• Language(s): English
• Number of CDs: 2
• Nonmember price: US$100

Contact

• Authors: Eugene Charniak, Don Blaheta, Niyu Ge, Keith Hall, John Hale, Mark Johnson
• Email: ec@bohr.cs.brown.edu

-- MichaelDaum - 04 Apr 2002