基于机器翻译的维吾尔语形态分析研究

针对现有维吾尔语形态分析研究中存在的数据稀疏、模型构建复杂等问题,提出一种基于机器翻译的维吾尔语形态分析模型,即将维吾尔语词干提取(词性标注)任务中词干提取前(词性标注前)的句子看作是机器翻译模型训练过程中的源语言端,词干提取后(词性标注后)的句子看作是目标语言端;为了达到最佳的效果,加入了外部信息模块和联合校验模块以优化模型。实验结果表明,基于机器翻译框架的维吾尔语形态分析模型在词干提取、词性标注两个任务上优于其他模型。对比英语(词干提取、词性标注)、汉语(分词、词性标注)实验结果,提出的方法更适合维吾尔语形态分析。

Improving Phrase-Based Statistical Machine Translation Models by Incorporating Syntax-Based Language Models

This paper proposed a method to incorporate syntax-based language models in phrase-based statistical machine translation (SMT) systems. The syntax-based language model used in this paper is based on link grammar,which is a high lexical formalism. In order to apply language models based on link grammar in phrase-based models,the concept of linked phrases,an extension of the concept of traditional phrases in phrase-based models was brought out. Experiments were conducted and the results showed that the use of syntax-based language models could improve the performance of the phrase-based models greatly.