基于低预期内核自动编码器的成本敏感的多核ELM
Liang Yixuan1,2
1School of Science, Xi 'an University of Technology, Xi'an, Shaanxi, P. R. China.
PloS one
|February 13, 2025
概括
本研究介绍了一种新的多核成本敏感的极端学习机器 (ELM) 方法,使用预期内核自动编码器. 这种方法旨在提高基于内核的ELM模型的培训速度和泛化性能.
科学领域:
- 机器学习 机器学习
- 人工智能的人工智能
- 计算科学 计算科学
背景情况:
- 极端学习机器 (ELM) 提供快速训练和强大的泛化.
- 现有的内核ELM自动编码器因长时间的训练时间和复杂的参数调整而受到影响.
- 多核模型在设置内核函数权重方面面临挑战.
研究的目的:
- 提出一种新的多核成本敏感的ELM方法.
- 解决现有的核心ELM自动编码器和多核方法的局限性.
- 在ELM模型中提高培训效率和概括性能.
主要方法:
- 一个减少的内核自动编码器是使用随机参考点来确定相似性的定义.
- 设计了一个减少预期的内核自动编码器,它结合了随机和相似性映射.
- 开发了两个多核ELM模型,将分类器输出转换为后置概率.
- 对成本敏感的决策通过最小风险标准来实现.
主要成果:
- 提出的方法有效地解决了长时间的培训时间和参数设置困难.
- 在公开和现实的数据集上的实验验证证明了该方法的有效性.
- 该方法成功地将预期内核ELM与多核策略集成在一起.
结论:
- 开发的多核成本敏感的ELM方法为基于内核的ELM提供了有效的解决方案.
- 该方法在培训效率和概括性方面取得了显著的改进.
- 这项工作有助于推进内核ELM自动编码器方法.
相关概念视频
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
One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for ka Estimation
368
This lesson introduces two critical methods in pharmacokinetics, the Wagner-Nelson and Loo-Riegelman methods, used for estimating the absorption rate constant (ka) for drugs administered via non-intravenous routes. The Wagner-Nelson method relates ka to the plasma concentration derived from the slope of a semilog percent unabsorbed time plot. However, it is limited to drugs with one-compartment kinetics and can be impacted by factors like gastrointestinal motility or enzymatic degradation.
On...
On...
368
Associative Learning
283
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
Classical conditioning, also known...
283
Reducing Line Loss
141
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
141
Multiple Regression
2.9K
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
2.9K
Residuals and Least-Squares Property
7.3K
The vertical distance between the actual value of y and the estimated value of y. In other words, it measures the vertical distance between the actual data point and the predicted point on the line
If the observed data point lies above the line, the residual is positive, and the line underestimates the actual data value for y. If the observed data point lies below the line, the residual is negative, and the line overestimates the actual data value for y.
The process of fitting the best-fit...
If the observed data point lies above the line, the residual is positive, and the line underestimates the actual data value for y. If the observed data point lies below the line, the residual is negative, and the line overestimates the actual data value for y.
The process of fitting the best-fit...
7.3K


