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  • System Name: LKB
  • Short Description: General workbench for typed feature grammar formalisms, including a tactical generation component
  • URL:
  • System Builders: Copestake[1][2][3]
  • Development Period: 1996–ongoing
  • Languages: independent
  • Theoretical framework: HPSG


LKB stands for Linguistic Knowledge Builder. The LKB system is a grammar and lexicon development environment for use with constraint-based linguistic formalisms. The LKB software is distributed by the DELPH-IN (formerly LinGO) initiative, a loosely-organized consortium of research groups working on unification-based grammars and processing schemes. The download page for the LKB system and other available DELPH-IN software and grammars is

The LinGO English Resource Grammar (ERG; with associated lexicons and so on) may be downloaded as erg.tgz. Note that it requires at least 250 MBytes of RAM to run with the LKB. A Knoppix-based virtual machine (for VirtualBox) with LKB, Trollet and some grammars incl. ERG pre-installed is also freely available for download.

The LKB system includes a tactical generation capability.

The LKB system is freely available as Open Source and there is no registration process.


  1. Copestake, A. (2002). Implementing Typed Feature Structure Grammars. Stanford, CA: CSLI Publications. Bib
  2. Carroll, J., Copestake, A., Flickinger, D., & Poznański, V. 1999. An efficient chart generator for (semi-)lexicalist grammars. Bib
  3. Carroll, J. A., & Oepen, S. (2005). High Efficiency Realization for a Wide-Coverage Unification Grammar. Paper presented at IJCNLP. Bib
Facts about LKBRDF feed
DescriptionGeneral workbench for typed feature grammar formalisms, including a tactical generation component  +
FrameworkHPSG  +
Languageindependent  +
NameLKB  +
Started1996  +
URL  +
WorkerCopestake  +
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