qiefou

this simulation is a way for watermarking and steganography with WOW

用于提高多维时间序列处理效率的自底向上分段法(Used to improve the processing efficiency of multidimensional time series segmentation bottom-up method)

根据学生两次考试成绩的数据来预测学生是否能被大学录取，用逻辑斯蒂回归算法实现，分别执行梯度下降算法、随机梯度下降算法、牛顿法(According student test scores twice to predict whether the student can be admitted to universities, implemented in logistic regression algorithm.)

说明：  利用最小二乘法对实验数据进行曲线拟合，可得到比较准确的拟合图形以及干涉代码。(The least square method is used to perform curve fitting on the experimental data to obtain a more accurate fitting graph.)

P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理(P0311 : use Butterworth (Butterworth) low-pass filter on the noise in the image smoothing)

BP神经网络预测公路运量 1.问题的描述 公路运量主要包括公路的客运量和公路货运量两个方面。据研究，某地区的公路运量主要与该地区的人数、机动车数量和公路面积有关，表1给出了20年得公路运量相关数据，表中人数和公路客运量的单位为万人，机动车数量单位为万两，公路面积的单位为万平方千米，公路货运量单位为万吨。 根据有关部门数据，该地区2010年和2011年的人数分别为73.39和75.55万人，机动车数量分别为3.9635和4.0975万辆，公路面积将分别为0.9880和1.0268万平方米。请利用BP神经网络预测该地区2010年2011年得公路客运量和公路货运量。 (BP neural network to predict the road traffic (1) description of the problem of road traffic including road passenger and road freight volume two. According to research, an area of ​ ​ road traffic and the number of the region, the number of motor vehicles and road area, Table 1 shows the 20 years have to road traffic-related data, the table number and road passenger traffic units for people , million two units of the number of motor vehicles, road area in square kilometers, the highway freight volume was 10 000 tons. According to relevant data, the number of people of the region in 2010 and 2011 were 73.39 and 75.55 million, the number of motor vehicles were 3.9635 and 4.0975 million units, the road area were 0.9880 and 1.0268 million square meters. Please use the BP neural network in the region in 2011, 2010 have highway passenger volume and road cargo.)

求解积分函数的列子，可以求sin的定积分和cos的定积分函数。(Liezi solution of the integral function, you can find the definite integral of sin and cos of the definite integral function.)

用格拉布斯坏值提出理论于剔除统计样本样本中坏值，将好值和坏值分开(used to delete the bad data for statistic based on the Grubs theory)

IEEE 802.11ac的发送端代码，用matlab生成，包含发送端的所有模块，至RF前端(IEEE 802.11ac transmitter matlab code)

关于支持向量机（SVM）的实现程序，很好的代码，希望对需要者有帮助。(the code about SVM.It will be helpfull for uers.)