2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/15826This paper presents a new context-free parsing algorithm based on a bidirectional strictly horizontal strategy which incorporates strong top-down predictions (derivations and adjacencies). From a functional point of view, the parser is able to propagate syntactic constraints reducing parsing ambiguity. From a computational perspective, the algorithm includes different techniques aimed at the improvement of the manipulation and representation of the structures used.12 pages, 4 Postscript figures, uses epsfigComputation and Languagetext