探索边缘分布在图形卷积网络中的作用
Liancheng He1, Liang Bai2, Xian Yang3
1Institute of Intelligent Information Processing, Shanxi University, Taiyuan, 030006, Shanxi, China.
概括
图形卷积网络 (GCNs) 的性能通过优化邻居选择来提高. 一个新的模型,GCN-IED,通过考虑直接和隐藏的边缘来增强对异构图的图表表示学习.
科学领域:
- 计算机科学 计算机科学
- 机器学习 机器学习
- 图形神经网络 图形神经网络
背景情况:
- 图形卷积网络 (GCNs) 擅长使用邻近信息进行节点表示学习.
- 现有的GCN模型通常假定图形同型,限制异型图形的性能.
- 邻居选择对GCN的表现产生重大影响,特别是在异性恋环境中.
研究的目的:
- 研究邻居选择对GCN性能的影响.
- 分析边缘分布在GCN中的作用.
- 提出一种新的GCN模型,以提高异构图的性能.
主要方法:
- 在GCN中边缘分布的理论和经验分析.
- 用改进边缘分布 (GCN-IED) 模型开发图形卷积网络.
- 对各种图形基准数据集的评估.
主要成果:
- GCN-IED有效地结合了直接和隐藏边缘,用于节点表示.
- 与最先进的方法相比,拟议的模型在异构数据集上表现出优异的性能.
- 优化的边缘分布增强了GCN的能力.
结论:
- 邻居选择和边缘分布对于GCN性能至关重要.
- GCN-IED提供了一种有效的方法,用于在异构图上学习图表表示.
- 这些发现为推进GCN研究提供了宝贵的见解.
相关概念视频
Network Function of a Circuit
302
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
302
Convolution: Math, Graphics, and Discrete Signals
273
In any LTI (Linear Time-Invariant) system, the convolution of two signals is denoted using a convolution operator, assuming all initial conditions are zero. The convolution integral can be divided into two parts: the zero-input or natural response and the zero-state or forced response, with t0 indicating the initial time.
To simplify the convolution integral, it is assumed that both the input signal and impulse response are zero for negative time values. The graphical convolution process...
To simplify the convolution integral, it is assumed that both the input signal and impulse response are zero for negative time values. The graphical convolution process...
273
Convolution Properties I
160
Convolution computations can be simplified by utilizing their inherent properties.
The commutative property reveals that the input and the impulse response of an LTI (Linear Time-Invariant) system can be interchanged without affecting the output:
The commutative property reveals that the input and the impulse response of an LTI (Linear Time-Invariant) system can be interchanged without affecting the output:
160
Vector Algebra: Graphical Method
12.2K
Vectors can be multiplied by scalars, added to other vectors, or subtracted from other vectors. The vector sum of two (or more) vectors is called the resultant vector or, for short, the resultant.
We use the laws of geometry to construct resultant vectors, followed by trigonometry to find vector magnitudes and directions. For a geometric construction of the sum of two vectors in a plane, we follow the parallelogram rule. Suppose two vectors are at arbitrary positions. Translate either one of...
We use the laws of geometry to construct resultant vectors, followed by trigonometry to find vector magnitudes and directions. For a geometric construction of the sum of two vectors in a plane, we follow the parallelogram rule. Suppose two vectors are at arbitrary positions. Translate either one of...
12.2K
Probability Distributions
7.2K
The probability of a random variable x is the likelihood of its occurrence. A probability distribution represents the probabilities of a random variable using a formula, graph, or table. There are two types of probability distribution– discrete probability distribution and continuous probability distribution.
A discrete probability distribution is a probability distribution of discrete random variables. It can be categorized into binomial probability distribution and Poisson...
A discrete probability distribution is a probability distribution of discrete random variables. It can be categorized into binomial probability distribution and Poisson...
7.2K
Transformers in Distribution System
109
Transformers in distribution systems can be broadly categorized into distribution substation transformers and other distribution transformers. They are crucial for stepping down high transmission voltages to levels suitable for distribution and end-user applications.
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
109


