arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2402.07028cs.CLcs.LG
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用于双语词典归纳的半监督学习

Semi-Supervised Learning for Bilingual Lexicon Induction

MINES Paristech(巴黎高等矿业学院);PSL - Research University(巴黎文理研究大学)

Paul Garnier, Gauthier Guinet

AI总结:

本文提出一种半监督双语词典归纳方法,通过整合已知语言知识并引入排序问题形式化,在无平行数据的情况下实现了优于现有技术的跨语言对齐效果。

摘要:

我们考虑将对应不同语言的两组连续词表示对齐到一个共同空间以推断双语词典的问题。最近的研究表明,通过在单语数据上训练的词嵌入进行对齐,可以在不使用任何平行数据的情况下推断出这样的词典。这类工作被称为无监督双语归纳。出于对在多种语言的渐进学习中能否积累经验的思考,我们自问:在学习一门新语言时,在缺乏后者平行数据的情况下,能在多大程度上整合给定语言集合的知识。换言之,在保留最后一步无监督学习的核心问题的同时,我们允许访问其他语料库,因此得名半监督。这促使我们提出了一种新的形式化方法,将词典归纳视为一个排序问题,并使用了该机器学习领域的最新工具。我们在标准基准上的实验(从英语推断到20多种语言的词典)表明,我们的方法始终优于现有的最先进基准。此外,我们从这个新场景中推导出了一些相关结论,有助于更好地理解对齐现象。

英文摘要:

We consider the problem of aligning two sets of continuous word representations, corresponding to languages, to a common space in order to infer a bilingual lexicon. It was recently shown that it is possible to infer such lexicon, without using any parallel data, by aligning word embeddings trained on monolingual data. Such line of work is called unsupervised bilingual induction. By wondering whether it was possible to gain experience in the progressive learning of several languages, we asked ourselves to what extent we could integrate the knowledge of a given set of languages when learning a new one, without having parallel data for the latter. In other words, while keeping the core problem of unsupervised learning in the latest step, we allowed the access to other corpora of idioms, hence the name semi-supervised. This led us to propose a novel formulation, considering the lexicon induction as a ranking problem for which we used recent tools of this machine learning field. Our experiments on standard benchmarks, inferring dictionary from English to more than 20 languages, show that our approach consistently outperforms existing state of the art benchmark. In addition, we deduce from this new scenario several relevant conclusions allowing a better understanding of the alignment phenomenon.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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