Báo cáo khoa học: "A Best-First Probabilistic Shift-Reduce Parser" pptx

... training datasets with more than 100M words. However, his model is non -probabilistic and thus a standard comparison with probabilistic mod- els in terms of perplexity isn’t possible. N-Gram models ... Edinburgh 10 Crichton Street, Edinburgh EH8 9AB, UK J.Lang-3@sms.ed.ac.uk Abstract We present a novel probabilistic classifier, which scales well to problems that involve a large number of...

Ngày tải lên: 07/03/2014, 22:20

... constituency parsing. Our parser computes parse trees from bottom up in one pass, and uses classifiers to make shift-reduce decisions. Trained and evaluated on the standard training and test sets, our best model ... many practical applications. Deterministic parsing has emerged as an attrac- tive alternative to probabilistic parsing, offering accuracy just below the state-of-the-art in syn...

Ngày tải lên: 20/02/2014, 12:20

... develop shallow−parsers: 1− Probabilistic techniques (e.g. Magerman 94, Ratnaparkhi 97, Daelmans & al. 99) 2− Finite−state techniques (e.g. Grefenstette 96) Probabilistic techniques require ... boundaries. We contrast our approach to other approaches used for shallow−parsing (i.e. finite−state and probabilistic methods). We present an evaluation of our tool for English (Penn Treeba...

Ngày tải lên: 17/03/2014, 07:20

... category-ambiguity problem in (3), the viable analysis criterion solves other problems, analogous to shift-reduce ambiguities, which are omit- ted here for reasons of space. The interested reader

Ngày tải lên: 17/03/2014, 09:20

Ngày tải lên: 17/03/2014, 09:20

Ngày tải lên: 17/03/2014, 22:20

Ngày tải lên: 17/03/2014, 22:20

Ngày tải lên: 18/03/2014, 02:20

... WFM) specified in equations (2-4) and explained in the main text. 3 A probabilistic Model for TDS This section describes the probabilistic generative model which was implemented in order to dis- ambiguate ... and Computation University of Amsterdam, the Netherlands f.sangati@uva.nl Abstract We present a probabilistic model exten- sion to the Tesni ` ere Dependency Structure (TDS) framewo...

Ngày tải lên: 20/02/2014, 04:20

... A PROBABILISTIC APPROACH TO GRAMMATICAL ANALYSIS OF WRITT!N ENGLISH BY COMPUTER. Andrew David Beale, ... corpus. So far, sample sentences have been automatically assigned phrase and clause tags using a probabilistic system similar to word tagging. It is hoped that the entire corpus will eventually ... to provide more detailed subcategor- izations. Phrase and Clause Tagging. The...

Ngày tải lên: 22/02/2014, 09:20