基于Unicode编码的现代藏文排序系统的设计

发布时间：2018-12-29 16:45

【摘要】：藏文排序问题是藏文迈向信息化的重要支撑之一。藏文的大量的编目、检索工作,包括人名排序都要求藏文以有序的方式排列以提高工作效率。藏文排序又是各种辞书、工具书编写中亟待解决的首要问题。解决了藏文排序,可以为后续的藏文信息处理奠定基础。由于藏文独特的二维结构,藏文排序相比其他文字的排序要复杂。根据现代藏文的辞典序以及现代藏文的结构,提出了将二维的藏文音节展开成形如“基本辅音+前加辅音+上加辅音+下加辅音+元音+后加辅音+又后加辅音”的线性字符串,其中空缺的部分用Unicode码值较小的空格来代替的方法,最后通过比较排序码得到与辞典序相同的结果。整个现代藏文排序系统由输入模块、音节切分模块、音节判定模块、排序码的提取与压缩模块、排序码的比较模块、结果显示模块组成。其中在音节判定模块中,根据现代藏文的特点和Unicode藏文编码的特点,设计了独特的音节判定算法。经过音节判定之后,从DUCET中提取相应的排序码。由于提取的排序码有很多重复和为零的部分,因此,还要对排序码进行压缩。经过压缩的排序码就可以通过排序算法进行排序了。根据以上各模块设计的排序系统能够对现代藏文进行正确的排序。
[Abstract]:The ranking problem of Tibetan language is one of the important support for Tibetan language towards information. A great deal of cataloguing and searching, including the sorting of people's names, require the Tibetan language to be arranged in an orderly manner to improve its efficiency. Tibetan sorting is also a variety of dictionaries, reference books in the preparation of the first issue to be solved. The arrangement of Tibetan language is solved, which can lay the foundation for the subsequent processing of Tibetan language information. Due to the unique two-dimensional structure of Tibetan language, the sorting of Tibetan characters is more complicated than that of other characters. According to the dictionaries of modern Tibetan and the structure of modern Tibetan, In this paper, a linear string is put forward for example, "add consonant vowel before basic consonant, add consonant vowel before consonant and add consonant after consonant". The vacant part is replaced by spaces with small Unicode code value. Finally, the same result is obtained by comparing the sorting codes with the dictionary order. The whole modern Tibetan sorting system consists of input module, syllable segmentation module, syllable decision module, sorting code extraction and compression module, sort code comparison module, and result display module. In the syllable determination module, according to the characteristics of modern Tibetan and Unicode Tibetan coding, a unique syllable decision algorithm is designed. After the syllable is determined, the corresponding sorting codes are extracted from the DUCET. Since the extracted sorting code has a lot of duplicates and zero parts, the sorting code must be compressed. Compressed sorting codes can be sorted by sorting algorithms. The sorting system designed according to the above modules can sort the modern Tibetan language correctly.
【学位授予单位】：青海师范大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP391.1;H087

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