Global organization of the Wordnet lexicon
Global organization of the Wordnet lexicon
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DOI：
10.1073/pnas.022341799
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发表时间：
2002-02-05
影响因子：
11.1
通讯作者：
Cecchi, GA
中科院分区：
文献类型：
--
作者：
Sigman, M;Cecchi, GA
词汇由一组词义及其语义关系组成。一个基于心理语言学考虑的英语词汇的系统表示已经在Wordnet数据库中进行了长期的合作。我们在此对Wordnet的图结构进行定量研究，以了解词汇的全局组织。语义链接遵循幂律，自组织网络典型的尺度不变行为。一词多义（单个词的歧义）是语义网络中的一个环节，它把一个普通词的不同意义联系在一起。多义链接对语义图的组织有深远的影响，使其成为一个小世界网络，具有高流量集群（枢纽），代表抽象概念，如线、头或圆。我们的研究结果表明：(1)Wordnet具有许多自组织系统共有的全局属性；(2)多义性以一种紧凑和分类的方式组织语义图，这种方式可以解释多义性在语言中的普遍存在。
The lexicon consists of a set of word meanings and their semantic relationships. A systematic representation of the English lexicon based in psycholinguistic considerations has been put together in the database Wordnet in a long-term collaborative effort. We present here a quantitative study of the graph structure of Wordnet to understand the global organization of the lexicon. Semantic links follow power-law, scale-invariant behaviors typical of self-organizing networks. Polysemy (the ambiguity of an individual word) is one of the links in the semantic network, relating the different meanings of a common word. Polysemous links have a profound impact in the organization of the semantic graph, conforming it as a small world network, with clusters of high traffic (hubs) representing abstract concepts such as line, head, or circle. Our results show that: (i) Wordnet has global properties common to many self-organized systems, and (ii) polysemy organizes the semantic graph in a compact and categorical representation, in a way that may explain the ubiquity of polysemy across languages.