相关实验视频
Updated: Jun 19, 2026

09:55
Monitoring Acupuncture Effects on Human Brain by fMRI
Published on: April 8, 2010
15.4K
使用大型语言模型进行关系提取:关于针点位置的案例研究
Yiming Li1, Xueqing Peng2, Jianfu Li3
1McWilliams School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX 77030, United States.
Journal of the American Medical Informatics Association : JAMIA
|August 29, 2024
概括
精心调整的GPT-3.5擅长从文本中提取针点位置关系,优于其他大型语言模型 (LLM). 这一进步通过自然语言处理改善了针知识建模和培训.
科学领域:
- 医疗信息学 医疗信息学
- 计算语言学 计算语言学
- 传统中国医药 传统中国医药
背景情况:
- 准确的针点位置对于针的有效性至关重要.
- 大型语言模型 (LLM) 提供了从医学文本中提取知识的潜力.
- 目前用于点关系提取的方法可能有限.
研究的目的:
- 评估LLM用于提取针点位置关系.
- 评估微调对GPT性能的影响.
- 为了比较不同的LLM,包括GPT-3.5,GPT-4和Llama 3.
主要方法:
- 使用了世卫组织标准针点位置库 (361个针点).
- 标注了五种类型的针点位置关系 (方向,距离,部分,近针点,位于附近).
- 对比预训练和微调的GPT-3.5,预训练的GPT-4和预训练的Llama 3.
主要成果:
- 微调的GPT-3.5获得了最高的微平均F1得分,为0.92.
- 精心调整的GPT-3.5在所有关系类型中始终优于其他模型.
- 在提取复杂的空间和关系信息方面,LLM表现出有效性.
结论:
- 特定域微调显著提高了用于针关系提取的LLM性能.
- 在针中,LLM可以支持临床决策和教育工具的开发.
- 这些发现有助于推进信息学在补充医学和NLP中的应用.
相关概念视频
Scatter Plot
The most common and easiest way to display the relationship between two variables, x and y, is a scatter plot. A scatter plot shows the direction of a relationship between the variables. A clear direction happens when there is either:
Outliers and Influential Points
An outlier is an observation of data that does not fit the rest of the data. It is sometimes called an extreme value. When you graph an outlier, it will appear not to fit the pattern of the graph. Some outliers are due to mistakes (for example, writing down 50 instead of 500), while others may indicate that something unusual is happening. Outliers are present far from the least squares line in the vertical direction. They have large "errors," where the "error" or residual is the vertical...
Residual Plots
A residual plot is a statistical representation of data used to analyze correlation and regression results. It helps verify the requirements for drawing specific conclusions about correlation and regression. To obtain the residual plot, first, the residual for each data value is calculated, which is simply the vertical distance between the observed and the predicted value obtained from the regression equation.
When the residual values are plotted against the variable x, it is called a residual...
When the residual values are plotted against the variable x, it is called a residual...
Structural Classification of Joints
Joints, also known as articulations, are classified based on their structural characteristics, i.e., based on whether the articulating surfaces of the adjacent bones are directly connected by fibrous connective tissue or cartilage, or whether the articulating surfaces contact each other within a fluid-filled joint cavity. These differences serve to divide the joints of the body into three structural classifications.
A fibrous joint is where the adjacent bones are united by fibrous connective...
A fibrous joint is where the adjacent bones are united by fibrous connective...
Typical Model Studies
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
Linearization and Approximation
Linearization is a mathematical technique used to approximate complex, nonlinear functions with simpler linear models in the vicinity of a chosen reference point. The method is based on the idea that, although a function may be difficult to evaluate exactly, its behavior near a specific input value can often be closely approximated by the tangent line at that point. This approach is particularly useful when small deviations from a known value are involved.Consider the square root function, for...

