Гармонизация Систем Помет Для Многоязычных Корпусов Посредством Решетки Понятий Harmonizing Tagsets for Multilingual Corpora via Concept Lattice
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چکیده
Multilingual corpora can be annotated with morphosyntactic tags by monolingual tools. However, each of the tools is typically bundled with a specific tagset. This variety of tagging schemes may be a problem for the user: InterCorp, a parallel corpus, currently offers on-line concordances in 22 languages, 11 of them tagged with 11 different tagsets.1 Fig. 1 illustrates the tagset variety using comparable examples of prepositional phrases in all of the 11 presently tagged languages.2 We are aiming at a solution that would delegate the task of dealing with multiple tagsets to the system, allowing the user to interact with an abstract interlingual hierarchy of linguistic categories. In order to reflect the differences between various tagsets, the common “tagset” takes three different perspectives of word class. Thus, the tag for the Czech relative pronoun který ‘which’ is decoded as a category with the properties of lexical pronoun, inflectional adjective and syntactic noun, each with its appropriate morphological characteristics. Tags in all tagsets can be described as objects with properties and the methods of Formal Concept Analysis [2] can be used to construct the hierarchy automatically as a concept lattice and to (partially) resolve tag queries that do not quite match the tags used for the specific language, in a way similar to that employed by Janssen [3] for dealing with lexical gaps in a multilingual lexical database. This is certainly not the first attempt to design an interlingual representation of linguistic categories in the context of multilingual corpora. We wish to mention at least MULTEXT-East [4], whose tagging scheme became a de facto standard for inflectional languages, and Interset,
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Morphological Tags in Parallel Corpora
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