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相关概念视频

Stereotype Content Model02:16

Stereotype Content Model

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The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
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Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

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Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
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Translation01:31

Translation

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Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Proteins are...
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Empathy02:34

Empathy

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Some researchers suggest that altruism operates on empathy. Empathy is the capacity to understand another person’s perspective, to feel what he or she feels. An empathetic person makes an emotional connection with others and feels compelled to help (Batson, 1991). Empathy can be expressed in several ways, including cognitive, affective, and motor. 
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Weak Base Solutions03:21

Weak Base Solutions

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Some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. In all cases, these compounds react only partially and so are classified as weak bases. These types of compounds are also abundant in nature and important commodities in various technologies. For example, global production of the weak base ammonia is typically well over 100 metric tons annually, being widely used as an agricultural fertilizer, a raw material for chemical synthesis of other...
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Valence Bond Theory02:42

Valence Bond Theory

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Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
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为低资源语言构建基于词典的情感分析模型.

Idi Mohammed1, Rajesh Prasad1

  • 1Computer Science Department, African University of Science and Technology, Abuja, Nigeria.

MethodsX
|November 29, 2023
PubMed
概括

这项研究引入了一种用于低资源语言的情感分析的新方法,在豪萨语推特上达到98%的准确性. 这种方法可以为服务不足的语言实现自然语言处理 (NLP).

科学领域:

  • 计算语言学 计算语言学
  • 自然语言处理自然语言处理.
  • 机器学习 机器学习

背景情况:

  • 自然语言处理 (NLP) 应用程序需要广泛的语言特定数据集,这对于世界上超过7000种语言中的大多数语言来说很少.
  • 亚洲和非洲语言存在很大的数据缺口,阻碍了准确的NLP工具的开发.
  • 现有的NLP资源主要支持一些高资源语言,如英语,中文和西班牙语.

研究的目的:

  • 提出和验证一种方法来构建基于词典的情感分析模型,用于低资源语言.
  • 为了应对NLP开发中语言数据有限的挑战.
  • 用豪萨语证明拟议方法的适用性.

主要方法:

  • 开发了一种整合词典创建,增量,注释和模型微调的方法.
  • 利用豪萨语作为培训和评估的案例研究.
  • 在Hausa的推文群体上测试了模型.

主要成果:

  • 在Hausa推特群体上实现了98%的高准确性.
  • 证明了对情绪分析提出的基于词典的方法的有效性.
  • 验证了该方法在低资源语言中广泛应用的潜力.
关键词:
建立一个基于词典的情感分析模型 低资源语言的模型.精细调整 微调 精细调整豪斯语 豪斯语 豪斯语 是一种语言.一个词典词典词典词典.资源较少的语言 资源较少的语言情绪分析是一种情绪分析.

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结论:

  • 拟议的方法为资源有限的语言的情感分析提供了一个有希望的解决方案.
  • 该方法可以适应各种应用,包括社交媒体监控和市场研究.
  • 这项工作有助于弥合NLP对代表性不足的语言的资源缺口.