Báo cáo khoa học: "Effective Parsing With Generalised Phrase Structure Grammar" docx

... Effective Parsing With Generalised Phrase Structure Grammar Allan Ramsay Cognitive Studies Program, University of Sussex Brighton, BN1 9QN, England Abstract Generalised phrase structure ... such guidance it becomes possible to deal even with text containing unknown or ambiguous words with very little search. I. Generalised Phrase Structure Grammar There has been considerable ... stated within the framework; and it should be detailed enough to make the rest of the paper comprehensible. 2o ParsinB Witb GPSO's Parsing with a GPSG is essentially the same as parsing with...

Tài liệu Báo cáo khoa học: "Semantic Parsing with Bayesian Tree Transducers" doc

... a pattern with which to expandit and then ﬁlling out that pattern with words drawnfrom a unigram distribution.This kind of coupled generative process canbe naturally formalized with tree ... the rich literature on tree automata.This paper makes the connection concrete with a tree transducer based semantic parsing model and suggests that other models can beinterpreted in a similar ... transducers,producing state-of-the-art semantic parsing re-sults while remaining applicable to any do-main employing probabilistic tree transducers.1 IntroductionSemantic parsing is the task of mapping natural...

Tài liệu Báo cáo khoa học: "Statistical parsing with an automatically-extracted tree adjoining grammar" pdf

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Báo cáo khoa học: "Incremental Parsing with Monotonic Adjoining Operation" potx

... phrase which starts with “a”has no adjunct. The tree (d) represents that thenoun phrase has an adjunct or is a conjunct of acoordinated noun phrase. The tree (e) representsthat the noun phrase ... the noun phrase with an adjunct is a conjunct of a coordi-nated noun phrase. The partial parse trees (d) and(e) are the instances of partial parse trees whichhave left-recursive structures. ... arbitrar-ily nested left-recursive structures and there is noinformation to predict the depth of nesting.To solve the problem, this paper proposes an in-cremental parsing method based on an adjoiningoperation....

Báo cáo khoa học: "Semantic parsing with Structured SVM Ensemble Classiﬁcation Models" docx

... semantic parsing, we describe herethe method of structure representation, the featuremapping, the loss function, and the maximizationalgorithm.3.1.1 Structure representationA tree structure ... framework onthe domain of semantic parsing shows ad-vantages in comparison with the originallarge margin methods.1 IntroductionNatural language semantic parsing is an interest-ing problem ... struc-tured support vector machine model for structuredpredictions and related works. Section 3 proposesour ensemble method for structured SVMs on thesemantic parsing problem. Section 4 shows exper-imental...

Báo cáo khoa học: "DEDUCTIVE PARSING WITH MULTIPLE LEVELS OF REPRESENTATION*" pptx

... Phonology LF-Movement D -structure D-st~'ucture S -structure S -structure not delayed S -structure Figure 6: The Control Strategy of PAD2. With this control strategy the parsing process proceeds ... utterance, D- structure, S -structure, PF and LF. To a first approximation, D -structure represents configurationally the thematic or predicate- argument structure of the utterance, S -structure ... of a PF-LF pair if and only if there is a D -structure and an S -structure such that the D -structure, S- structure, PF, LF quadruple is well-formed with respect to all of the (pararneterized)...

Báo cáo khoa học: "Dependency Parsing with Undirected Graphs" ppt

... dependency parsing. In Proceedings of the8th International Workshop on Parsing Technolo-gies (IWPT), pages 149–160.Joakim Nivre. 2008. Algorithms for DeterministicIncremental Dependency Parsing. ... areless conclusive, with improvements over the di-rected versions in ﬁve out of the eight languages.The improvements in LAS obtained with label-based reconstruction over directed parsing are sta-tistically ... expected, the good results obtained by theundirected parsers with label-based reconstruc-tion contrast with those obtained by the variants with root-based reconstruction, which performedworse in...

Báo cáo khoa học: "HPSG Parsing with Shallow Dependency Constraints" docx

... and conclusions.2 Fast dependency parsing andwide-coverage HPSG parsing 2.1 Data-driven dependency parsing Because we use dependency parsing as a step indeep parsing, it is important that we ... dependency andHPSG parsing approaches in section 2. In section3, we present our framework for HPSG parsing with shallow dependency constraints, and in section 4 we624Figure 1: HPSG parsing evaluate ... dependency parsing. We present a novel framework that combinesstrengths from surface syntactic parsing and deepsyntactic parsing, speciﬁcally by combining depen-dency and HPSG parsing. We...

Báo cáo khoa học: "Constituent Parsing with Incremental Sigmoid Belief Networks" ppt

... pairs.During parsing with both the NN method and theMF method, we used beam search with a post-wordbeam of 10. Increasing the beam size beyond thisvalue did not signiﬁcantly effect parsing accuracy.For ... need-ing to have data labeled with those features in ad-vance. Instead, a labeling with these features canbe induced as part of the training process. Thedifﬁculty with latent variable models ... training.We use SBNs in a generative history-based modelof constituent structure parsing. The probability ofan unbounded structure is decomposed into a se-quence of probabilities for individual...

Báo cáo khoa học: "Incremental Parsing with the Perceptron Algorithm" potx

... algo-rithm with neither of the two reﬁnements presented; with just early update; and with both. Early update makes1 2 3 4 5 682838485868788Number of passes over training dataF−measure parsing ... Abstract Description of Incremental Parsing This section gives a description of the basic incremental parsing approach. The input to the parser is a sentencex with length n. A hypothesis is a triple ... results that suggestthat FILTER can be chosen in such a way as to give ef-ﬁcient parsing performance together with high parsing accuracy.The exact implementation of the parser will depend onthe...

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