可训练的无参数结构多样性信息通过图形神经网络
Mingyue Kong1, Yinglong Zhang1, Chengda Xu1
1Minnan Normal University, No. 36 Xianqian Road, Zhangzhou Fujian, 363000, China.
概括
结构多样性图形神经网络 (SDGNN) 通过捕捉没有可学习参数的邻里异质性来改善节点分类. 这种方法在具有挑战性的场景中提高了适应能力,例如低监督和阶级不平衡.
科学领域:
- 图形神经网络的神经网络
- 机器学习 机器学习
- 网络科学 网络科学
背景情况:
- 图形神经网络 (GNN) 在结构化数据方面表现出色,但与异质社区和复杂特征作斗争.
- 主流的GNN通常会使表征均化,因为它具有统一的邻居聚合和许多可学习的参数.
- 这限制了低监督或不平衡数据集的适应性,导致语义退化.
研究的目的:
- 引入一个无参数的GNN框架,结构多样性图神经网络 (SDGNN),以解决表示均化问题.
- 运行信息传递中的结构多样性,以更好地模拟异构图区.
- 提高跨多种图形结构和具有挑战性的学习条件的适应性.
主要方法:
- 提出结构-多样性信息传递 (SDMP) 与集团内部统计和跨集团选择.
- 结合结构驱动和特征驱动的分区策略.
- 使用基于正常传播的全球结构增强剂来提高适应性.
主要成果:
- 在9个基准数据集和PubMed引用网络中,SDGNN的表现始终优于主流GNN.
- 在低监督和阶级失衡条件下表现优越.
- 在跨领域的转移学习任务中表现出更强的适应能力.
结论:
- SDGNN有效地在图表中模拟结构多样性,克服现有GNN的局限性.
- 无参数设计和新的消息传递机制提供了改进的表示学习.
- SDGNN为现实世界的图形数据挑战提供了强大而适应性的解决方案.
相关概念视频
First Pass Effect
9.7K
Presystemic elimination, or the first-pass effect, is the metabolism of drugs that reduces their effective concentration at the site of action. Apart from the first-pass effect, the systemic bioavailability of the drug is also reduced by other factors, including incomplete absorption or chemical degradation of drugs.
Depending on the route of administration, drugs can be metabolized in the liver, intestine, lungs, and vasculature. Orally administered drugs are first absorbed through the...
Depending on the route of administration, drugs can be metabolized in the liver, intestine, lungs, and vasculature. Orally administered drugs are first absorbed through the...
9.7K
Ogive Graph
6.9K
An ogive graph is sometimes called a cumulative frequency polygon. It is one type of frequency polygon that shows cumulative frequency. In other words, the cumulative percentages are added to the graph from left to right. An ogive graph plots cumulative frequency on the vertical y-axis and class boundaries along the horizontal x-axis. It’s very similar to a histogram; only instead of rectangles, an ogive displays a single point where the top right of the rectangle would be. Creating this...
6.9K
Graphing Antiderivatives
79
The concept of an antiderivative is fundamental in calculus, describing how a function's values accumulate over time. This process is closely related to physical motion, such as the movement of a rolling ball. As the ball progresses, its position changes in response to variations in velocity, just as an antiderivative graph reflects the cumulative effect of the original function's values.Graphing an antiderivative requires interpreting how a function's values influence the shape of its...
79
Graphs of Functions
365
Graphs of functions provide a visual representation of how output values change in response to varying inputs. Each point on the graph corresponds to an ordered pair, where the x-coordinate (independent variable) determines the horizontal position and the y-coordinate (dependent variable) determines the vertical position. Linear functions like y = x give a straight line, indicating a constant rate of change.Nonlinear functions display more complex behaviors. Even power functions generate...
365
Bar Graph
23.3K
A bar graph is also called a bar chart and consists of bars that are separated from each other. It either uses horizontal or vertical bars to show comparisons among categories. The bars can be rectangles, or they can be rectangular boxes (used in three-dimensional plots). One axis of the graph represents the specific categories being compared, and the other axis shows a discrete value. In this graph, the length of the bar for each category is proportional to the number or percent of individuals...
23.3K
Protein Networks
4.6K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.6K


