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相关概念视频

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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Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
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The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
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Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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Nursing Clinical Information System (NCIS)
A Nursing Clinical Information System (NCIS) is a specialized type of healthcare information system tailored to meet the unique needs of nursing practice. It incorporates the principles of nursing informatics to streamline information management and improve the quality of care delivery.
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Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness
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生物LORD-2023:语义文本表示融合了大型语言模型和临床知识图洞察力.

François Remy1, Kris Demuynck1, Thomas Demeester1

  • 1Internet and Data Science Lab, imec, Ghent University, Ghent, Belgium.

Journal of the American Medical Informatics Association : JAMIA
|February 27, 2024
PubMed
概括

本研究介绍了BioLORD-2023,一种新型模型,通过将大型语言模型 (LLM) 与知识图集集成,提高生物医学和临床领域的语义理解. 该模型在语义文本相似性和生物医学概念表示方面实现了最先进的性能.

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:

  • 生物医学知识图对于语义建模至关重要.
  • 大型语言模型 (LLM) 为文本理解提供了先进的功能.
  • 将LLM与知识图集集成,可以增强生物医学和临床语义模型.

研究的目的:

  • 研究LLM和生物医学知识图的协同潜力.
  • 为生物医学和临床领域开发一个最先进的语义模型.
  • 改进生物医学概念和句子的高保真性表示.

主要方法:

  • 使用统一医疗语言系统 (UMLS) 的知识图.
  • 雇佣的代表性学习的尖端LLMs. 代表性的学习.
  • 实施了三步方法:对比学习,自蒸和重量平均.

主要成果:

  • 在语义文本相似性 (STS) 和生物医学概念表示 (BCR) 上取得了最先进的结果.
  • 在临床命名实体中显著改进,将15多个数据集连接起来.
  • 发布了支持50多种语言的多语言模型,对7种欧洲语言进行了微调.
关键词:
生物学上的本体学.知识库是知识的基础.机器学习是机器学习.自然语言处理自然语言处理.语义学的语义学

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结论:

  • 生物LORD-2023为临床管道和生物信息学研究提供了巨大的好处.
  • 多语言模型使全球生物医学语义表示学习的进步民主化.
  • 生物LORD-2023被定位为未来生物医学应用的宝贵工具.