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Revitalizing Endangered Languages

Edited by Justyna Olko & Julia Sallabank

Revitalizing Endangered Languages "This guidebook provides ideas and strategies, as well as some background, to help with the effective revitalization of endangered languages. It covers a broad scope of themes including effective planning, benefits, wellbeing, economic aspects, attitudes and ideologies."

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Dissertation Information

Title: Research and Implementation of A Domain-Unconstrained Chinese Automatic Abstracting System Add Dissertation
Author: Junjie Li Update Dissertation
Email: click here to access email
Institution: Harbin Institute of Technology, Computer Science and Engineering
Completed in: 1995
Linguistic Subfield(s): Computational Linguistics;
Subject Language(s): Chinese, Mandarin
Director(s): Wang Kaizhu

Abstract: In this dissertation, the author

(1) presented a new text representation, called Hierarchical Network, which is based on the natural hierarchical structure of text, i.e. Chapter, paragraph, sentence, sub-sentence, word and character to automatically index the text and corpus.

(2) designed and implemented a Non-dictionary Automatic Chinese Segmentation System which provides a new efficient method to segment new words and reach a 98% correctness rate of segmentation for open test.

(3) developed a new characteristic word weighting function which is based on word frequency and word length, where corpus-based co-occurrence computation is used in calculating word frequency.

(4) developed a new sentence importance weighting function which synthetically reflects the factors of sentence length, the number of sub-sentences, the sum of characteristic words and so on, instead of utilizing static information such as sentence location, connective expression words and phrases etc..

(5) designed and implemented a Unconstrained Chinese Automatic Abstracting System, which can generate abstracts of the texts in deferent field, style and length by any abstracting rate.