在异质图神经网络中进行链接预测的社区影响路径解释
Yanhong Wen1, Yuhua Li2, Yixiong Zou2
1School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China; Institute of Artificial Intelligence, Huazhong University of Science and Technology, Wuhan, China.
概括
本研究介绍了CI-Path,这是一种用于在异质链接预测中解释图形神经网络 (GNN) 的新方法. 它有效地结合了社区结构,以产生更容易理解和准确的解释.
科学领域:
- 人工智能的人工智能
- 网络科学 网络科学
- 机器学习 机器学习
背景情况:
- 图形神经网络 (GNN) 对于链接预测 (LP) 的解释性在异质图形中未得到充分探索.
- 对异质LP的现有GNN解释方法往往忽视了社区结构的重大影响.
- 这种忽视导致了缺乏与人类直觉和理解一致的解释.
研究的目的:
- 通过纳入社区影响来解决基于GNN的异质LP的解释性差距.
- 开发一种新的解释方法,CI-Path,它考虑了整个GNN学习过程中的社区影响,用于异质链接预测.
- 证明社区结构在增强GNN解释异质链接预测方面的有效性.
主要方法:
- 一项初步分析证实了社区在异质GNN中对LP的有效性.
- CI-Path方法包括度中心性修剪和社区检测用于数据预处理.
- 提出一个影响社区的客观功能,包括预测和路径丢失.
- 基于最短的长度,最小的节点度和最少的社区交叉的解释性路径的识别.
主要成果:
- 与现有的基线方法相比,CI-Path在五个异质数据集中表现出优异的性能.
- 该方法通过利用社区的影响,成功地产生了更符合人类理解的解释.
- 初步分析证实了社区在改进GNN解释异质链路预测方面的关键作用.
结论:
- 社区的影响是产生基于GNN的异质LP中的有效和与人类一致的解释的重要因素.
- CI-Path为异质链接预测任务提供了一个强大而新的GNN可解释性的方法.
- 拟议的方法增强了GNN在复杂,现实世界的网络数据中的实际应用性.
相关概念视频
Hedgehog Signaling Pathway
7.5K
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
7.5K
End Point Prediction: Gran Plot
614
A Gran plot is used to predict the equivalence volume or endpoint of a potentiometric or acid-base titration without reaching the endpoint. Typically, titration data is collected as a function of the titrant's volume up to a point less than the equivalence volume and then transformed into a linear format. The straight line is extended to the x-axis, indicating the necessary titrant volume to achieve the equivalence point.
For potentiometric titration, the Gran plot is created by plotting...
For potentiometric titration, the Gran plot is created by plotting...
614
Interactions Between Signaling Pathways
6.6K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.6K
IP3/DAG Signaling Pathway
12.5K
Membrane lipids such as phosphatidylinositol (PI) are precursors for several membrane-bound and soluble second messengers. Specific kinases phosphorylate PI and produce phosphorylated inositol phospholipids. One such inositol phospholipids are the phosphatidylinositol-4,5 bisphosphate [PI(4,5)P2], present in the inner half of the lipid bilayer. Upon ligand binding, GPCR stimulates Gq proteins to turn on phospholipase Cꞵ. Activated phospholipase Cꞵ cleaves PI(4,5)P2 and...
12.5K
Interference: Path Lengths
1.4K
Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
1.4K
Neural Circuits
1.6K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.6K


