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相关概念视频

Drug Nomenclature01:17

Drug Nomenclature

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During the development of a new pharmaceutical, the manufacturer initially assigns a code name to the drug. Once approved, the drug receives a United States Adopted Name (USAN)—a generic, nonproprietary designation. Upon being listed in the United States Pharmacopeia, this nonproprietary name becomes the drug's official name. Additionally, the manufacturer assigns a proprietary name or trademark, which serves as the brand name under which the drug is marketed. It is worth noting that...
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ER Retrieval Pathway01:45

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In the secretory pathway, vesicles transport proteins from one cellular compartment to another in forward transport to deliver the protein to its correct location. Occasionally, misfolded proteins and incorrect proteins escape their original compartments, and a retrieval pathway is used to return the escaped proteins to their original compartment.
The ER uses many checkpoints to prevent the entry of incorrectly folded or a resident protein as cargo onto a transport vesicle. These mechanisms...
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Genomics02:02

Genomics

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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Transducer Mechanism: Enzyme-Linked Receptors01:27

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Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
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The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...
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Updated: Jun 11, 2025

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness
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通过通用域资源增强生物医学命名实体识别.

Yu Yin1, Hyunjae Kim2, Xiao Xiao1

  • 1Department of Computer Science, University of Liverpool, Liverpool L69 3DR, United Kingdom.

Journal of biomedical informatics
|October 5, 2024
PubMed
概括

通过使用通用域数据集,GERBERA增强了生物医学命名实体识别 (BioNER) 模型. 这种具有成本效益的转移学习方法提高了BioNER的性能,尤其是在有限的生物医学数据的情况下.

关键词:
生物医学命名实体识别技术自然语言处理自然语言处理.转移学习学习 转移学习

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科学领域:

  • 计算生物学是一种计算生物学.
  • 自然语言处理自然语言处理.
  • 机器学习 机器学习

背景情况:

  • 生物医学命名实体识别 (BioNER) 模型培训需要广泛,昂贵的人类注释.
  • 现有的BioNER多任务学习方法可能无法持续提高性能,并且可以在数据集中引入标签模糊性.

研究的目的:

  • 为BioNER模型开发一种新的培训方法,减少对昂贵的人类注释的依赖.
  • 通过利用来自一般域数据集的转移学习来提高BioNER模型性能.

主要方法:

  • 提出了GERBERA,一种利用通用域名实体识别 (NER) 数据集进行培训的方法.
  • 采用多任务学习来训练预训练的生物医学语言模型,使用BioNER和通用域数据集.
  • 精心调整模型,特别针对目标BioNER数据集.

主要成果:

  • 在GERBERA模型中,在5个数据集和8个实体类型中,经过额外的BioNER数据集训练的基线模型的表现优于基线模型.
  • 在八个实体中,与最佳基线相比,实现了0.9%的平均绩效改善.
  • 在数据有限的BioNER数据集上显著提高了性能,在JNLPBA-RNA上F1得分提高了4.7%.

结论:

  • 引入了一种具有成本效益的培训方法,将BioNER模型与通用NER数据集增强.
  • 显著提高了BioNER模型的性能,为缺乏生物医学数据的场景提供了有价值的解决方案.
  • 公开提供数据,代码和模型,以促进进一步研究.