储计算方法用于在动态系统中无监督的概念漂移检测.
Braden J Thorne1,2, Débora C Corrêa2,3, Ayham Zaitouny1,4
1Complex Systems Group, Department of Mathematics and Statistics, The University of Western Australia, Crawley, Western Australia 6009, Australia.
Chaos (Woodbury, N.Y.)
|February 10, 2025
概括
本研究引入了一种新的方法,用于检测动态系统中的概念漂移,使用储库计算 (RC). 这种新的方法有效地识别了系统行为的随时间变化,优于现有的非线性时间序列分析方法.
科学领域:
- 复杂的系统复杂的系统.
- 时间序列分析时间序列分析
- 机器学习 机器学习
背景情况:
- 动态系统经常随着时间的推移而变化 (概念漂移),挑战静态建模假设.
- 现有的概念漂移检测方法主要以统计为基础,对决定性过程的选择较少.
- 非线性时间序列分析 (NTSA) 正在获得确定性系统的吸引力,但对于概念漂移仍未得到充分探索.
研究的目的:
- 提出一种新的无监督方法,用于在动态系统中检测概念漂移.
- 利用储库计算 (RC) 的嵌入能力来描述系统动态.
- 根据现有的NTSA技术对拟议的基于RC的方法进行评估.
主要方法:
- 利用储计算 (RC) 模型来生成嵌入动态系统数据.
- 开发了一个基于RC嵌入的无监督概念漂移检测算法.
- 评估了来自各种动态系统的合成漂移数据流的方法.
- 在一个有缺陷的球轴承振动的实验数据集上验证了方法.
主要成果:
- 与传统的NTSA方法相比,提出的基于RC的方法在检测概念漂移方面表现优越.
- RC嵌入式有效地捕捉了系统的潜在动态,促进了漂移检测.
- 该方法在不同的合成数据集和现实世界的实验案例中显示出稳定性.
结论:
- 储计算为动态系统中无监督概念漂移检测提供了一个强大的框架.
- 提出的基于RC的方法为现有的NTSA方法提供了一个有希望的替代方案,特别是对于确定性系统.
- 进一步的研究可以探索实时实现和超参数优化,以实现实际应用.
相关概念视频
Instinctive Drift
178
Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...
178
Classification of Systems-II
133
Continuous-time systems have continuous input and output signals, with time measured continuously. These systems are generally defined by differential or algebraic equations. For instance, in an RC circuit, the relationship between input and output voltage is expressed through a differential equation derived from Ohm's law and the capacitor relation,
133
Multi-input and Multi-variable systems
93
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence...
In the absence...
93
Genetic Drift
39.2K
Natural selection—probably the most well-known evolutionary mechanism—increases the prevalence of traits that enhance survival and reproduction. However, evolution does not merely propagate favorable traits, nor does it always benefit populations.
39.2K
Control Volume and System Representations
811
Two key frameworks are employed to analyze mass, energy, and momentum transfer: the control volume approach and the system approach. These frameworks offer different perspectives, depending on whether the focus is on a specific region in space (control volume approach) or a defined mass of fluid (system approach).
The control volume approach considers a stationary region in space through which fluid flows. This region is bounded by a control surface. For instance, in the case of water...
The control volume approach considers a stationary region in space through which fluid flows. This region is bounded by a control surface. For instance, in the case of water...
811
Interference and Decay
104
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
104


