Exploració per autor "Collins, Michael"
Ara es mostren els items 3-6 de 6
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Non-projective parsing for statistical machine translation
Carreras Pérez, Xavier; Collins, Michael (2009)
Text en actes de congrés
Accés obertWe describe a novel approach for syntaxbased statistical MT, which builds on a variant of tree adjoining grammar (TAG). Inspired by work in discriminative dependency parsing, the key idea in our approach is to allow highly ... -
Simple semi-supervised dependency parsing
Koo, Terry; Carreras Pérez, Xavier; Collins, Michael (2008)
Text en actes de congrés
Accés obertWe present a simple and effective semisupervised method for training dependency parsers. We focus on the problem of lexical representation, introducing features that incorporate word clusters derived from a large unannotated ... -
Structured prediction models via the matrix-tree theorem
Koo, Terry; Globerson, Amir; Carreras Pérez, Xavier; Collins, Michael (2007)
Text en actes de congrés
Accés obertThis paper provides an algorithmic framework for learning statistical models involving directed spanning trees, or equivalently non-projective dependency structures. We show how partition functions and marginals for directed ... -
TAG, dynamic programming, and the perceptron for efficient, feature-rich parsing
Carreras Pérez, Xavier; Collins, Michael; Koo, Terry (Coling 2008 Organizing Committee, 2008)
Text en actes de congrés
Accés obertWe describe a parsing approach that makes use of the perceptron algorithm, in conjunction with dynamic programming methods, to recover full constituent-based parse trees. The formalism allows a rich set of parse-tree ...