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chapter2
用matalab成功实现多元线性回归,简单可行,相信能给大家带来方便。(Matalab with the successful implementation of multiple linear regression, simple and feasible, I believe that can bring convenience to everyone.)
- 2009-05-09 16:56:02下载
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FELICS
In computer science and information theory, data compression, source coding,[1] or bit-rate reduction involves encoding information using fewer bits than the original representation. Compression can be either be lossy or lossless. Lossless compression reduces bits by identifying and eliminating statistical redundancy. No information is lost in lossless compression. Lossy compression reduces bits by identifying marginally important information and removing it. The process of reducing the size of a data file is popularly referred to as data compression, although its formal name is source coding (coding done at the source of the data, before it is stored or transmitted).
- 2012-09-26 18:06:47下载
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Method-of-Moments
Simulating the dipole antenna by method of moments.
- 2012-01-23 06:37:55下载
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Lab13_MultArrays
Lab13_MultArrays 多维数组的使用,实现数组定位(Use Lab13_MultArrays multidimensional arrays, array positioned to achieve)
- 2014-01-06 09:13:28下载
- 积分:1
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fft2d
离散傅立叶变换已成为数字信号处理的重要工具,然而,它的计算量较大,运算时间长,在某种程度上却限制了它的使用范围。快速算法大大提高了运算速度,在某些应用场合已能作到实时处理,并且开始应用于控制系统。(Discrete Fourier Transform digital signal processing has become an important tool, however, the calculation of its larger, long computing time, but in a way limits the scope of its use. Fast Algorithm for greatly enhanced speed of operation, in some applications has been able to do real-time processing and control system began to be used.)
- 2007-09-17 20:46:15下载
- 积分:1
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MyKmeans
实现聚类K均值算法: K均值算法:给定类的个数K,将n个对象分到K个类中去,使得类内对象之间的相似性最大,而类之间的相似性最小。 缺点:产生类的大小相差不会很大,对于脏数据很敏感。 改进的算法:k—medoids 方法。这儿选取一个对象叫做mediod来代替上面的中心 的作用,这样的一个medoid就标识了这个类。步骤: 1,任意选取K个对象作为medoids(O1,O2,…Oi…Ok)。 以下是循环的: 2,将余下的对象分到各个类中去(根据与medoid最相近的原则); 3,对于每个类(Oi)中,顺序选取一个Or,计算用Or代替Oi后的消耗—E(Or)。选择E最小的那个Or来代替Oi。这样K个medoids就改变了,下面就再转到2。 4,这样循环直到K个medoids固定下来。 这种算法对于脏数据和异常数据不敏感,但计算量显然要比K均值要大,一般只适合小数据量。(achieving K-mean clustering algorithms : K-means algorithm : given the number of Class K, n will be assigned to target K to 000 category, making target category of the similarity between the largest category of the similarity between the smallest. Disadvantages : class size have no great difference for dirty data is very sensitive. Improved algorithms : k-medoids methods. Here a selection of objects called mediod to replace the center of the above, the logo on a medoid this category. Steps : 1, arbitrary selection of objects as K medoids (O1, O2, Ok ... ... Oi). Following is a cycle : 2, the remaining targets assigned to each category (in accordance with the closest medoid principle); 3, for each category (Oi), the order of selection of a Or, calculated Oi Or replace the consumption-E (Or))
- 2005-07-26 01:32:58下载
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Computer-arithmetic-algorithms
Djvu格式的书籍,介绍计算机硬件设计的算术算法。内容详尽,深入浅出,覆盖面也比较广。(Djvu format, books, computer hardware designs described arithmetic algorithms. Detailed, easy to understand, is also more extensive coverage.)
- 2011-02-09 11:22:22下载
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Aniso_ppref_coeff
常规地震假设地下介质是各项同性的,但实际上,是各向异性的。各向异性介质的反射系数随入射角、方位角不同而不同。(Reflection coefficient varies with incident angle and azimuthal angle.)
- 2020-12-01 18:39:25下载
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bit-error-rate_simulation_using_matlab
Bit-Error-Rate Simulation Using Matlab
- 2009-03-08 01:30:25下载
- 积分:1
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Ubftl
超声仿真软件,基于MATLABB,用于声束合成技术可直接使用。
(Ultrasound simulation software, based on MATLABB for beam synthesis technique can be used directly.)
- 2012-07-29 00:00:22下载
- 积分:1