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Applied-Optimization-with-Matlab
一本关于用Matlab编写的优化算法的书籍(Apllied optimization with Matlab )
- 2012-12-30 23:47:41下载
- 积分：1
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优秀论文及配套源码 SVM Short-term-Load-Forecasting
优秀论文及配套源码。首先阐述了负荷预测的应用研究现状，概括了负荷预测的特点及其影响因素，归纳了短期负荷预测的常用方法，并分析了各种方法的优劣；接着介绍了作为支持向量机（SVM）理论基础的统计学习理论和SVM的原理，推导了SVM回归模型；本文采用最小二乘支持向量机（LSSVM）模型，根据浙江台州某地区的历史负荷数据和气象数据，分析影响预测的各种因素，总结了负荷变化的规律性，对历史负荷数据中的“异常数据”进行修正，对负荷预测中要考虑的相关因素进行了归一化处理。LSSVM中的两个参数对模型有很大影响，而目前依然是基于经验的办法解决。对此，本文采用粒子群优化算法对模型参数进行寻优，以测试集误差作为判决依据，实现模型参数的优化选择，使得预测精度有所提高。实际算例表明，本文的预测方法收敛性好、有较高的预测精度和较快的训练速度。(first expounds the recent application research of load forecasting, summarized the characteristics of load forecasting and influencing factors, summed up common methods of short-term load forecasting, and analyzed the advantages and disadvantages of each method then introduced statistical learning theory and the principle of SVM as the basis of support vector machine (SVM ) theory, SVM regression model is derived this paper adopted least squares support vector machine (LSSVM) model, according to the historical load data and meteorological data of a certain area of Zhejiang Taizhou, Analysised the various factors affecting the forecast, summed up the regularity of load change , amended "outliers" in the historical load data,the load forecasting factors to be considered were normalized. The two parameters of LSSVM have a significant impact on the model, but it is still soluted based on the experience currently. So, this paper adopted particle swarm optimization algorithm to optimized )
- 2021-04-01 17:09:08下载
- 积分：1
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sun_position
一个相当好用的matlab函数，由美国国家可再生能源实验室科研人员设计，可以计算太阳的直射维度和方位角。只要输入时间、观测地点即可。 (This algorithm is based on numerical approximation of the exact equations.
The authors of the original paper state that this algorithm should be
precise at+/- 0.0003 degrees. I have compared it to NOAA solar table
(http://www.srrb.noaa.gov/highlights/sunrise/azel.html) and to USNO solar
table (http://aa.usno.navy.mil/data/docs/AltAz.html) and found very good
correspondance (up to the precision of those tables), except for large
zenith angle, where the refraction by the atmosphere is significant
(difference of about 1 degree). Note that in this code the correction
for refraction in the atmosphere as been implemented for a temperature
of 10C (283 kelvins) and a pressure of 1010 mbar. See the subfunction
un_topocentric_zenith_angle_calculation� for a possible modification
to explicitely model the effect of temperature and pressure as describe
in Reda & Andreas (2003). )
- 2010-01-07 14:37:02下载
- 积分：1
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apodize
核磁共振波谱处理MRS，APODIZATION切趾处理(MRS preprocessing---apodization)
- 2010-01-19 15:12:08下载
- 积分：1
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FCM
实现模糊聚类分割的一些方法，以及一些编程代码供学习和复习。(To achieve some of the methods of fuzzy clustering segmentation)
- 2012-04-03 11:35:16下载
- 积分：1
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matlab
绘制不同函数曲线的用户界面，可控制小球运动速度的用户界面达到多样性，还有一些关于图像的频率格式转换的操作(Function curve to draw different user interface, can control the ball speed to achieve diversity in the user interface, and some on the frequency of the image format conversion operations)
- 2011-05-16 09:53:09下载
- 积分：1
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workzuojian
已知单位负反馈系统被控对象的传函为:
• 设计滞后-超前校正装置,使校正后的系统满足:
• (1).在单位斜坡信号作用下,Kv=10s^(-1)
• (2).校正后相角裕度³ 45°
• (3).系统校正后剪切频率wc ³ 1.5s^(-1)
• (4).时域性能指标:s％£ 30％,Tp £ 2s,Ts £ 6s
(units known negative feedback system object to the transfer function :)
- 2007-01-22 22:02:26下载
- 积分：1
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Porous
The Open Porous Medium (OPM) consortium provides industry-compatible open-source finite-element flow simulation code with robust
- 2014-01-26 18:28:03下载
- 积分：1
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jacobis
说明： Jacobian光滑化牛顿法,能运行实现，具有超线性收敛的光滑化牛顿算法.(Jacobian Smooth Newton Method)
- 2011-04-13 22:37:05下载
- 积分：1
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cheby
构造N次切比雪夫逼近多项式，实现多项式插值(Structure N times Chebyshev polynomial approximation)
- 2011-04-20 14:32:10下载
- 积分：1
