@inproceedings{dione-2014-pruning,
    title = "Pruning the Search Space of the {W}olof {LFG} Grammar Using a Probabilistic and a Constraint Grammar Parser",
    author = "Dione, Cheikh M. Bamba",
    editor = "Calzolari, Nicoletta  and
      Choukri, Khalid  and
      Declerck, Thierry  and
      Loftsson, Hrafn  and
      Maegaard, Bente  and
      Mariani, Joseph  and
      Moreno, Asuncion  and
      Odijk, Jan  and
      Piperidis, Stelios",
    booktitle = "Proceedings of the Ninth International Conference on Language Resources and Evaluation ({LREC}'14)",
    month = may,
    year = "2014",
    address = "Reykjavik, Iceland",
    publisher = "European Language Resources Association (ELRA)",
    url = "https://preview.aclanthology.org/fix-sig-urls/L14-1497/",
    pages = "2863--2870",
    abstract = "This paper presents a method for greatly reducing parse times in LFG by integrating a Constraint Grammar parser into a probabilistic context-free grammar. The CG parser is used in the pre-processing phase to reduce morphological and lexical ambiguity. Similarly, the c-structure pruning mechanism of XLE is used in the parsing phase to discard low-probability c-structures, before f-annotations are solved. The experiment results show a considerable increase in parsing efficiency and robustness in the annotation of Wolof running text. The Wolof CG parser indicated an f-score of 90{\%} for morphological disambiguation and a speedup of ca. 40{\%}, while the c-structure pruning method increased the speed of the Wolof grammar by over 36{\%}. On a small amount of data, CG disambiguation and c-structure pruning allowed for a speedup of 58{\%}, however with a substantial drop in parse accuracy of 3.62."
}