[PDF] Top 20 Unsupervised Induction of Tree Substitution Grammars for Dependency Parsing
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Unsupervised Induction of Tree Substitution Grammars for Dependency Parsing
... to unsupervised grammar induction, both for phrase-structure and dependency grammars, have typically used very simplistic models (Clark, 2001; Klein and Manning, 2004), especially in com- ... See full document
10
Multiword Expression Identification with Tree Substitution Grammars: A Parsing tour de force with French
... Merging known MWEs into single tokens has been shown to improve accuracy for a variety of NLP tasks: dependency parsing (Nivre and Nilsson, 2004), constituency parsing (Arun and Keller, 2005), ... See full document
11
Punctuation: Making a Point in Unsupervised Dependency Parsing
... prove unsupervised dependency ...Manning’s Dependency Model with Valence ...impose parsing restrictions over its ...grammar induction in 17 of 18 languages, for an overall average net ... See full document
10
Posterior Sparsity in Unsupervised Dependency Parsing
... A strong inductive bias is essential in unsupervised grammar induction. In this paper, we explore a particular sparsity bias in dependency grammars that encourages a small number of unique de- ... See full document
36
Tree Parsing with Synchronous Tree Adjoining Grammars
... context-free grammars (SCFG) that derive pairs of translationally equivalent ...use tree-to-string transducers (called xRLNS) that describe pairs of the form (phrase- structure tree, ...synchronous ... See full document
12
Native Language Detection with Tree Substitution Grammars
... art parsing results, it has achieved state of the art results for unsupervised grammar induc- tion (Blunsom and Cohn, 2010) and has been ex- tended to synchronous grammars for use in sentence ... See full document
5
Inducing Tree-Substitution Grammars
... free grammars and first order dependency grammars, which are not sufficiently expressive to model many common linguistic ...probabilistic tree substitution grammar, a formalism which ... See full document
44
Blocked Inference in Bayesian Tree Substitution Grammars
... an unsupervised set- ting where parse trees are not ...the tree constraints, which has time complexity cubic in the length of the sen- ...and tree were considerably worse than a tree ... See full document
6
Concavity and Initialization for Unsupervised Dependency Parsing
... grammar induction models C CV 1 and C CV 2 can perform on their own and when used as initializers for the DMV (Klein and Manning, ...jective dependency trees over ...state-of-the-art unsupervised ... See full document
5
Node based Induction of Tree Substitution Grammars
... for induction of probabilistic tree substitution gram- mars, which represents the probability distribu- tion over possible tree-substitution grammars by assigning probabilities ... See full document
8
Online Learning of Approximate Dependency Parsing Algorithms
... tract dependency trees from the WSJ, setting sec- tions 2-21 as training, section 22 for development and section 23 for ...exact parsing algorithms, which can be attained in the projective ...complete ... See full document
8
Preservation of Recognizability for Synchronous Tree Substitution Grammars
... Shieber (2004) showed that for every classical unweighted S TSG there exists an equivalent bi- morphism (Arnold and Dauchet, 1982). The con- verse result only holds up to deterministic rela- belings (G´ecseg and Steinby, ... See full document
9
Parsing Strategies with ‘Lexicalized’ Grammars: Application to Tree Adjoining Grammars
... Parsing Strategies with 'Lexicalized' Grammars Application to Tree Adjoining Grammars P a r s i n g S t r a t e g i e s w i t h ' L e x i c a l i z e d ' G r a m m a r s A p p l i c a t i o n t o T r[.] ... See full document
6
Viterbi Training Improves Unsupervised Dependency Parsing
... in parsing, each of which can be legitimately termed “likeli- hood” — the mass that a particular model assigns to (i) highest-scoring (Viterbi) parse trees; (ii) the correct (gold) reference trees; and (iii) the ... See full document
9
Unsupervised Dependency Parsing with Acoustic Cues
... We found that our syntactic chunkers benefited more from duration information than prosodic an- notations, providing some preliminary evidence in favor of predictability bootstrapping, but not ruling out prosodic ... See full document
12
Bidirectional Parsing of Lexicalized Tree Adjoining Grammars
... Lexicalized Tree Adjoining Grammars Schabes et al., 1988 are a refinement of TAGs such that each elementary tree is associated with a lexieal item, called the anchor of the tree.. Theref[r] ... See full document
6
Toward Tree Substitution Grammars with Latent Annotations
... mar induction, the KTB yields additional difficulties by including a high occurrence of very flat rules (in 5K sentences, there are 13 NP rules with at least four righthand side NPs) and a coarser nonterminal set ... See full document
8
An Efficient Parsing Algorithm for Tree Adjoining Grammars
... It is obvious that this invariant consisting of the nonterminal in a cell of the triangle matrix to represent the context-free invariant, the pointers to elementary trees, and the foot n[r] ... See full document
8
Inducing Compact but Accurate Tree Substitution Grammars
... a tree, P (t | e) is either equal to 1 (when t and e are consistent) or 0 ...full tree must be segmented into one or more elementary ...elementary tree e with root non-terminal symbol c ... See full document
9
Insertion Operator for Bayesian Tree Substitution Grammars
... For the full treebank dataset, our model obtained nearly identical results to those obtained with BTSG model, making the grammar size approximately 19% smaller than that of BTSG. We can see that only a small number of ... See full document
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