Статистический Парсер

This paper describes a new statistical parser which is based on probabilities of dependencies between head-words in the parse tree. Standard bigram probability es- timation techniques are extended to calcu- …...

This paper presents a statistical parser for natural language that obtains a parsing accuracy--roughly 87% precision and 86% recall--which surpasses the best previously published results on the Wall St. Journal …...

A parsing system returning analyses in the form of sets of grammatical relations can obtain high pre- cision if it hypothesises a particular relation only when it is certain that …...

Many recent statistical parsers rely on a preprocess- ing step which uses hand-written, corpus-specific rules to augment the training data with extra infor- mation. For example, head-finding rules are used …...

We present a system for automatically identifying PropBank-style semantic roles based on the output of a statistical parser for Combinatory Categorial Grammar. This system performs at least as well as …...

Discriminative methods have shown significant improvements over traditional generative meth- ods in many machine learning applications, but there has been difficulty in extending them to natural language parsing. One problem …...

Statistical parsers are extremely complex sys- tems, yet papers describing them almost always only discuss theoretical issues instead of imple- mentation issues. This paper attempts to ad- dress the imbalance …...

This paper investigates the usefulness of sentence-internal prosodic cues in syntac- tic parsing of transcribed speech. Intu- itively, prosodic cues would seem to pro- vide much the same information in …...

We introduce a learning semantic parser, SCISSOR, that maps natural-language sen- tences to a detailed, formal, meaning- representation language. It first uses an integrated statistical parser to pro- duce a …...

This paper describes a novel system for acquiring adjectival subcategorization frames (SCFs) and associated frequency information from English corpus data. The system incorporates a decision-tree classifier for 30 SCF types …...

To facilitate the use of syntactic infor- mation in the study of child language acquisition, a coding scheme for Gram- matical Relations (GRs) in transcripts of parent-child dialogs has been …...

. We present a preliminary study of several parser adaptation techniques evaluated on the GENIA corpus of MEDLINE abstracts [1,2]. We begin by observing that the Penn Treebank (PTB) is …...

There are many methods to improve performances of statistical parsers. Among them, resolving structural ambiguities is a major task. In our approach, the parser produces a set of n-best trees …...

Statistical parsers trained and tested on the Penn Wall Street Journal (WSJ) treebank have shown vast improvements over the last 10 years. Much of this improvement, however, is based upon …...

Statistical parsers have become increasingly accurate, to the point where they are useful in many natural language applications. However, estimating parsing accuracy on a wide variety of domains and genres …...

In this paper, we report experiments that explore learning of syntactic and seman- tic representations. First, we extend a state-of-the-art statistical parser to pro- duce a richly annotated tree that …...

Creating large amounts of manually annotated training data for statistical parsers imposes heavy cognitive load on the human annota- tor and is thus costly and error prone. is hence of …...

We present a method for disambiguating syn- tactic subjects from syntactic objects (a fre- quent ambiguity) in German sentences taken from an English-German bitext. We exploit the fact that subject …...

In recent years, statistical parsers have reached high performance levels on well-edited texts. Domain adaptation techniques have improved parsing results on text genres differing from the journalistic data most parsers …...

We consider the problem of training a sta- tistical parser in the situation when there are multiple treebanks available, and these tree- banks are annotated according to different lin- guistic …...