通过连续时间图形神经网络和深度强化学习来最大化时间影响
Yong Wang1, Mohamad A Alawad2, Raed H C Alfilh3
1School of Information Engineering, Yulin University, Yulin, 719000, Shaanxi, China.
Scientific reports
|February 13, 2026
概括
TempRL-IM是一种时间增强学习框架,通过使用连续时间图神经网络 (CTGNNs) 和双深Q网络 (DDQN) 代理来增强动态网络中的影响力最大化. 这种方法可以提高信息传播和推断速度.
科学领域:
- 网络科学 网络科学
- 人工智能的人工智能
- 计算社会科学 计算社会科学
背景情况:
- 传统的影响最大化 (IM) 方法在动态网络上由于静态假设而失败.
- 现实世界的社会系统表现出持续的进化和爆发式的相互作用,使静态网络模型无效.
- 现有的时间IM方法可以分辨时间,失去细粒度的依赖性,无法建模非静止模式.
研究的目的:
- 开发一个新的框架,TempRL-IM,用于动态网络中的影响力最大化.
- 解决静态和离散的时间IM方法的局限性.
- 为了利用连续时间动态来实现更准确,更有效的影响扩散预测.
主要方法:
- 连续时间图神经网络 (CTGNNs) 的集成用于时间依赖编码.
- 使用双深Q网络 (DDQN) 代理来进行最佳的种子选择.
- 开发一个时间强化学习框架 (TempRL-IM) 用于动态网络分析.
主要成果:
- 与最先进的方法相比,TempRL-IM实现了15-28%的更高影响力传播.
- 该框架展示了3-10倍更快的推断速度.
- 观察到具有类似时间特征的网络之间具有强大的可转移性.
结论:
- 在社交网络中,TempRL-IM有效地模拟了连续时间动态,而没有离散化工件.
- 拟议的框架为影响最大化提供了在准确性和效率方面的显著改进.
- TempRL-IM对病毒营销和流行病制等大规模应用具有前景.
相关概念视频
Time-Series Graph
5.2K
A time-series graph is a line graph with repeated measurements taken at successive intervals of time. It is also called a time series chart. To construct a time-series graph, one must look at both pieces of a paired data set. The horizontal axis is used to plot the time increments, and the vertical axis is used to plot the values of the variable that one is measuring. By using the axes in this way, each point on the graph will correspond to time and a measured quantity. The points on the graph...
5.2K
Continuous -time Fourier Transform
941
The Fourier series is instrumental in representing periodic functions, offering a powerful method to decompose such functions into a sum of sinusoids. This technique, however, necessitates modification when applied to nonperiodic functions. Consider a pulse-train waveform consisting of a series of rectangular pulses. When these pulses have a finite period, they can be accurately represented by a Fourier series. Yet, as the period approaches infinity, resulting in a single, isolated pulse, the...
941
Basic Continuous Time Signals
729
Basic continuous-time signals include the unit step function, unit impulse function, and unit ramp function, collectively referred to as singularity functions. Singularity functions are characterized by discontinuities or discontinuous derivatives.
The unit step function, denoted u(t), is zero for negative time values and one for positive time values, exhibiting a discontinuity at t=0. This function often represents abrupt changes, such as the step voltage introduced when turning a car's...
The unit step function, denoted u(t), is zero for negative time values and one for positive time values, exhibiting a discontinuity at t=0. This function often represents abrupt changes, such as the step voltage introduced when turning a car's...
729
Sampling Continuous Time Signal
769
In signal processing, a continuous-time signal can be sampled using an impulse-train sampling technique, followed by the zero-order hold method. Impulse-train sampling involves the use of a periodic impulse train, which consists of a series of delta functions spaced at regular intervals determined by the sampling period. When a continuous-time signal is multiplied by this impulse train, it generates impulses with amplitudes corresponding to the signal's values at the sampling points.
In the...
In the...
769
BIBO stability of continuous and discrete -time systems
949
System stability is a fundamental concept in signal processing, often assessed using convolution. For a system to be considered bounded-input bounded-output (BIBO) stable, any bounded input signal must produce a bounded output signal. A bounded input signal is one where the modulus does not exceed a certain constant at any point in time.
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
949
Reinforcement
963
Positive and negative reinforcement are key concepts in operant conditioning, a learning process where the consequences of a behavior affect the likelihood of that behavior being repeated.
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
963


