Coordination Disambiguation without Any Similarities
نویسندگان
چکیده
The use of similarities has been one of the main approaches to resolve the ambiguities of coordinate structures. In this paper, we present an alternative method for coordination disambiguation, which does not use similarities. Our hypothesis is that coordinate structures are supported by surrounding dependency relations, and that such dependency relations rather yield similarity between conjuncts, which humans feel. Based on this hypothesis, we built a Japanese fully-lexicalized generative parser that includes coordination disambiguation. Experimental results on web sentences indicated the effectiveness of our approach, and endorsed our hypothesis.
منابع مشابه
Probabilistic Coordination Disambiguation in a Fully-Lexicalized Japanese Parser
This paper describes a probabilistic model for coordination disambiguation integrated into syntactic and case structure analysis. Our model probabilistically assesses the parallelism of a candidate coordinate structure using syntactic/semantic similarities and cooccurrence statistics. We integrate these probabilities into the framework of fully-lexicalized parsing based on largescale case frame...
متن کاملبررسی نقش انواع بافتار همنویسهها در تعیین شباهت بین مدارک
Aim: Automatic information retrieval is based on the assumption that texts contain content or structural elements that can be used in word sense disambiguation and thereby improving the effectiveness of the results retrieved. Homographs are among the words requiring sense disambiguation. Depending on their roles and positions in texts, homograph contexts could be divided to different types, wit...
متن کاملCoordinate Noun Phrase Disambiguation in a Generative Parsing Model
In this paper we present methods for improving the disambiguation of noun phrase (NP) coordination within the framework of a lexicalised history-based parsing model. As well as reducing noise in the data, we look at modelling two main sources of information for disambiguation: symmetry in conjunct structure, and the dependency between conjunct lexical heads. Our changes to the baseline model re...
متن کاملCoordination Annotation Extension in the Penn Tree Bank
Coordination is an important and common syntactic construction which is not handled well by state of the art parsers. Coordinations in the Penn Treebank are missing internal structure in many cases, do not include explicit marking of the conjuncts and contain various errors and inconsistencies. In this work, we initiated manual annotation process for solving these issues. We identify the differ...
متن کاملBypassed alignment graph for learning coordination in Japanese sentences
Past work on English coordination has focused on coordination scope disambiguation. In Japanese, detecting whether coordination exists in a sentence is also a problem, and the state-of-the-art alignmentbased method specialized for scope disambiguation does not perform well on Japanese sentences. To take the detection of coordination into account, this paper introduces a ‘bypass’ to the alignmen...
متن کامل