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1_2_3维均值聚类
简单地实现了一、二、三维的K均值聚类,效果还不错,适合初步学习模式识别的同志们(Simple implementation of one, two, three - dimensional k-means clustering, the effect is not bad, it is suitable for the initial learning pattern recognition comrades)
- 2020-07-02 04:00:01下载
- 积分:1
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lssvmprediction
最小二乘支持向量机做预测。程序可运行学习。在matlab上运行。(This is a program about prediction using LSSVM.It can run successfully for learning.This program can be used on matlab.)
- 2013-08-12 20:17:12下载
- 积分:1
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MLS1D_0
一维最小移动二乘法拟合位移场的无网格方法算例。(ONE-DIMENSIONAL MLS APPROXIMATION)
- 2013-03-24 14:26:29下载
- 积分:1
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FDTD
是以有限差分算法的MATLAB实现,可以运行的,给出谐振腔的场强的表示方法(finite diffenence time domain programmed by matlab language is for cavity, and its elelctro magnetic field can be showed.)
- 2009-04-28 08:17:33下载
- 积分:1
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Q_factor_calcualtor
利用Matlab计算quality factor. 输入是谐振波谱的数据,输出为:谐振频率,谐振幅度和quality factor。(Matlab coding. Calculate quality factor of resonator based on transmission spectrum data.)
- 2020-06-29 19:40:02下载
- 积分:1
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11087 统计逆序对
说明: Description
设a[0…n-1]是一个包含n个数的数组,若在ia[j],则称(i, j)为a数组的一个逆序对(inversion)。
比如 有5个逆序对。请采用类似“合并排序算法”的分治思路以O(nlogn)的效率来实现逆序对的统计。
一个n个元素序列的逆序对个数由三部分构成:
(1)它的左半部分逆序对的个数,(2)加上右半部分逆序对的个数,(3)再加上左半部分元素大于右半部分元素的数量。
其中前两部分(1)和(2)由递归来实现。要保证算法最后效率O(nlogn),第三部分(3)应该如何实现?
此题请勿采用O(n^2)的简单枚举算法来实现。
并思考如下问题:
(1)怎样的数组含有最多的逆序对?最多的又是多少个呢?
(2)插入排序的运行时间和数组中逆序对的个数有关系吗?什么关系?
输入格式
第一行:n,表示接下来要输入n个元素,n不超过10000。
第二行:n个元素序列。
输出格式
逆序对的个数。
输入样例
5
2 3 8 6 1
输出样例
5(Set a[0... N-1] is a n array containing n numbers. If there is a [i] > a [j] i n the case of I < j, then (i, j) is a n inversion pair of a array.
For example, has five reverse pairs. Please use the idea of "merge sorting algorithm" to achieve the statistics of inverse pairs with O (nlogn) efficiency.
The number of inverse pairs of a sequence of n elements consists of three parts:
(1) The number of reverse pairs in the left half, (2) the number of reverse pairs in the right half, (3) the number of elements in the left half is greater than that in the right half.
The first two parts (1) and (2) are implemented by recursion. To ensure the final efficiency of the algorithm O (nlogn), how should the third part (3) be implemented?
Do not use O (n ^ 2) simple enumeration algorithm to solve this problem.)
- 2019-01-07 23:52:06下载
- 积分:1
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应用fluent进行两相流的仿真
说明: 应用fluent进行两相流的仿真,内容充实具体,简易使用,是进行两相流仿真的一个很好的算例。pdf文件。(Using fluent to simulate two-phase flow, the content is rich and specific, easy to use, is a good example of two-phase flow simulation)
- 2020-05-11 18:26:30下载
- 积分:1
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Count
说明: 输入任意数学四则运算表达式可以得出结果,很方便很实用的一个程序的源代码。(you can get the answer.)
- 2010-04-23 19:51:08下载
- 积分:1
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bearing-fault-frequency-calculation
故障频率计算程序,计算轴承各部件的故障频率(Failure rate calculation program to calculate the bearing parts of the fault frequency)
- 2020-12-20 15:49:09下载
- 积分:1
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多元线性回归
利用多元回归分析对气象站点数据进行插值运算。(The data of meteorological stations are interpolated by multiple regression analysis.)
- 2018-01-14 10:47:39下载
- 积分:1