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相关概念视频

Light Acquisition02:16

Light Acquisition

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In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
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Plant Breeding and Biotechnology01:59

Plant Breeding and Biotechnology

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Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
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Basic Plant Anatomy: Roots, Stems, and Leaves02:27

Basic Plant Anatomy: Roots, Stems, and Leaves

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The primary organs of vascular plants are roots, stems, and leaves, but these structures can be highly variable, adapted for the specific needs and environment of different plant species.
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Transgenic Plants

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Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
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Plant Tissues01:18

Plant Tissues

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Plants are multicellular eukaryotes with tissue systems made of various cell types that carry out specific functions. Different tissues work together to perform a unique function and form an organ. Organs working together form organ systems. Vascular plants have two distinct organ systems: a shoot system and a root system. The shoot system consists of two portions: the vegetative (non-reproductive) parts of the plant, such as the leaves and the stems, and the reproductive parts of the plant,...
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Plant Hormones

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Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
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相关实验视频

Updated: Sep 17, 2025

Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics
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使用大型语言模型从非结构化文本中提取植物功能特征.

Viktor Domazetoski1, Holger Kreft1,2,3, Helena Bestova1,2

  • 1Department of Biodiversity, Macroecology, and Biogeography University of Göttingen Göttingen Germany.

Applications in plant sciences
|June 27, 2025
PubMed
概括

本研究引入了一种自然语言处理管道,从文本中提取植物的功能特征. 该方法显著提高了数据提取的准确性,有助于生态研究.

关键词:
自动特征提取 自动特征提取生物多样性生物多样性功能植物生态学 功能植物生态学大型语言模型.自然语言处理自然语言处理.血管植物 血管植物

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科学领域:

  • 生态生态学 生态生态学
  • 计算生物学 计算生物学
  • 生物信息学是一种生物信息学.

背景情况:

  • 功能性植物生态学依赖于特征数据来理解物种分布和生态系统功能.
  • 现有的全球特征数据集有局限性,手动提取数据是耗时且昂贵的.
  • 需要使用机器学习从文本来源中自动提取植物特征,以补充现场数据.

研究的目的:

  • 开发和评估一种自然语言处理 (NLP) 管道,从非结构化文本中提取植物的功能特征.
  • 将NLP管道的性能与正规表达式等传统方法进行比较.
  • 评估管道对分类和数值植物特征的有效性.

主要方法:

  • 设计了一个新的NLP管道,包括分类特征的分类模型和数值特征的问答模型.
  • 该管道在两个包含超过5万个物种描述的广泛数据库上进行了测试.
  • 研究了各种机器学习方法,包括变压器架构和大型语言模型.

主要成果:

  • 优化的NLP管道实现了高性能,对分类特征的平均精度为90.8%,平均回忆率为88.6%.
  • 这对正则表达式方法来说是一个显著的改进,精度增加了9.83%,回忆率增加了42.35%.
  • 对数值特征的问答模型显示,正常化平均绝对误差为10.3%.

结论:

  • 拟议的NLP管道有效地自动地从各种文本来源提取植物功能特征信息.
  • 这种方法有可能极大地加速大量生态数据的数字化和利用.
  • 这些发现支持使用先进的NLP技术来弥补功能植物生态学的数据缺口.