The LLaMaPUn library will consist of a wide range of processing tools for natural language and mathematics.

New: Efforts have started in adopting third-party tools (such as the SENNA NLP toolkit) and adapting them to the focus of mathematical documents. As such, the current build target is refocused on the C programming language, migrating away from Perl. Given the portability of C, we expect to eventually offer high level wrappers for a variety of scripting languages.

Please remember that all third-party tools enforce their own licensing constraints.

Disclaimer: This Github repository is currently undergoing gradual migration from the original subversion repository. The migration consists of reorganizing the libraries, and preparing a CPAN-near bundle including a testbed and detailed documentation. This process also brings a namespace change to the now properly spelled LLaMaPUn.

Several upcoming deployments of the CorTeX framework have motivated the move to GitHub and provide an outlook for a number of fixes and features to be added to the library.

High-level Overview

• Preprocessing

  • Unicode normalization,
  • Stopwords - based on widely accepted lists, enhanced for STEM texts,
  • Semi-structured to plain text normalization (math, citations, tables, etc.),
  • Purification of text and math modality (e.g. move trailing dots left in math back into the sentence text),
  • Stemming - adaptation of the Morpha stemmer,
  • Tokenization - rule-based sentence segmentation, and SENNA word tokenization

• Shallow Analysis

  • Language identification (via libTextCat),
  • N-gram footprints,
  • Part-of-speech tagging (via SENNA),
  • Named Entity recognition (via SENNA),
  • Chunking and shallow parsing (via SENNA),
  • [TODO] "Definition" paragraph discrimination task (training SVM classifiers, based on TF/IDF and Ngram BoW features, via libsvm)
  • [TODO] "Declaration" sentence discrimination task (training CRF models via CRFsuite).

• Representation Toolkit

  • Document Narrative Model (DNM) addition to the XML DOM
  • XPointer and string offset annotation support
  • Integration with the CorTeX processing framework
  • [TOPORT] Shared Packed parse forests for mathematical formulas (aka "disjunctive logical forms")

See also

• The official project page at Jacobs University
• The kick-off LaMaPUn paper from 2009.

Contact

Feel free to send any feedback to the project maintainer at d.ginev@jacobs-university.de