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Translation method and translation system oriented to morphologically-rich language

A translation system and rich technology, applied in special data processing applications, instruments, electronic digital data processing, etc., can solve the problems of ambiguity and loss of translation rules

Inactive Publication Date: 2012-09-19
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

However, this method loses the affix information after all, and there are certain ambiguities in the translation rules

Method used

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  • Translation method and translation system oriented to morphologically-rich language
  • Translation method and translation system oriented to morphologically-rich language
  • Translation method and translation system oriented to morphologically-rich language

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Embodiment Construction

[0042] Specific embodiments of the present invention are given below, and the present invention is described in detail in conjunction with the accompanying drawings.

[0043] The purpose of the present invention is to propose a translation method for morphologically rich languages. By treating stems and affixes differently and using stems as atomic translation units, the problem of data sparsity is alleviated; affixes associated with translation rules are used to disambiguate translation rules, thereby improving the quality of morphologically rich language translation.

[0044] In order to achieve the above-mentioned purpose of the invention, the present invention provides a specific machine translation method, comprising the following steps:

[0045] Step 1) Perform morphological analysis on morphologically rich language to obtain word stem and affix information;

[0046] Step 2) When extracting translation rules, the word stem is used as the atomic translation unit, and the...

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Abstract

The invention relates to a translation method and a translation system oriented to a morphologically-rich language. The method comprises the following steps of: (1) carrying out morphological analysis on the morphologically-rich language, so as to obtain stem and affix information; (2) during the extraction of translation rules, taking a stem as an atomic translation unit, and reserving corresponding affix distribution information; and (3) during translation, acquiring stem and affix distribution according to a fragment to be translated, wherein a stem sequence is used for querying a rule table, the affix distribution information and candidate affix distribution according to a rule are used for calculating similarity, so as to characterize the degree of the similarity between the affix distribution information and the candidate affix distribution, and guide to decod, and the stem sequence is a sequence consisting of a plurality of stems.

Description

technical field [0001] The invention belongs to the technical field of natural language processing, in particular, the invention relates to a translation method and system for morphologically rich languages. Background technique [0002] Current statistical machine translation (Statistical Machine Translation) related technologies are mainly derived from English and similar languages. It assumes that words are atomic translation units. Based on this assumption, word-based, phrase-based, and syntax-based translation models are proposed; under the premise of a large corpus, such methods effectively improve the isolated language (such as Chinese) and languages ​​that are not rich in morphological changes (such as English, French). [0003] But for a morphologically rich language, there are a series of morphological changes: twists and turns, phonetic harmony, consistency, compounding, etc.; therefore, for a given stem form, it can theoretically generate hundreds of words. Tho...

Claims

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Application Information

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IPC IPC(8): G06F17/28
Inventor 王志洋吕雅娟刘群
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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