生物医学文本分类使用基于分布和关系上下文的增强文字表示
Md Aslam Parwez1, Mohd Fazil2, Muhammad Arif3
1Department of Computer Science & Engineering, Jamia Hamdard, New Delhi, India.
Computational intelligence and neuroscience
|September 12, 2024
概括
本研究引入了一种新的方法,通过结合关系语义来学习生物医学文本中的词汇表示. 这增强了机器学习模型,用于诸如文本分类等任务,超过现有方法.
科学领域:
- 生物医学信息学 生物医学信息学
- 自然语言处理自然语言处理.
- 机器学习 机器学习
背景情况:
- 越来越多的生物医学文本数据需要先进的知识提取方法.
- 当前的单词表示技术虽然有效,但难以捕捉远距离单词之间的关系语义.
- 改进的词汇表示对于提高机器学习模型在生物医学文本分析中的准确性至关重要.
研究的目的:
- 通过整合分布式和关系式语义信息,为生物医学文本开发一种增强的词汇表示方法.
- 为了利用生物医学关系三胞胎来丰富词语嵌入.
- 为了提高自然语言处理任务的性能,特别是文本分类,使用这些增强的词汇表示.
主要方法:
- 提出了一种新的方法,通过将生物医学关系三重体的关系语义信息纳入分布式表示中来学习词汇表示.
- 捕捉了词语的分布和关系上下文,以生成增强的数值向量.
- 在单词相似性和概念分类任务上评估学到的词汇表示.
主要成果:
- 与最先进的GloVe模型相比,所提出的方法在词汇相似性和概念分类方面表现优越.
- 在应用到四种不同神经网络模型时,学习的词汇表示显著提高了文本分类的准确性.
- 关系语义的整合有效地提高了生物医学文本的词嵌入的质量.
结论:
- 通过结合关系语义学来学习单词表示的拟议方法为生物医学文本分析提供了重大进展.
- 增强的词嵌入导致下游自然语言处理任务的性能提高,包括文本分类.
- 这种方法为从不断增长的生物医学文献中提取更深入的见解提供了宝贵的工具.
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