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偏微分方程数值解 ex3.1.1p
孙志忠书：偏微分方程数值解，第三章第一节：抛物方程的有限差分解法向前欧拉格式(forward euler difference scheme for parabolic problem)
- 2010-12-13 22:48:32下载
- 积分：1
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logintimeout
说明： 这个模型可以在MATLAB中，为数据库的进入，提供时间倒数，以防止过多地试密码，从而提高系统的保密性( TIMEOUT = LOGINTIMEOUT(FIRSTARG,SECONDARG) returns the current
value of time allowed for a connection to a database to be
successful. FIRSTARG, an optional argument, is a string that
specifies the JDBC driver to be used establishing the database
connection. SECONDARG, an optional argument, is an integer that
specifies the length of time the driver will attempt to make a
connection to a database. If FIRSTARG is not specified then the
default JDBC/ODBC bridge is used to establish the connection to
the database. If function is used without arguments then the
current time out value is returned. )
- 2011-04-08 08:59:55下载
- 积分：1
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aa
说明： 也是使用同态滤波对图像进行对比度增强以及去雾处理，不过可以适用于彩色图像。(Homomorphic filtering is also used for contrast enhancement and image processing to the fog, but can be applied to color images.)
- 2011-04-27 11:59:13下载
- 积分：1
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datasepf
generate two classes of data samples within unit square that are linearly separable.
- 2013-05-17 13:59:52下载
- 积分：1
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EMD_prog_pack_emd
一个法国人的Matlab EMD程序，包括例程，分享给大家。(A French Matlab EMD procedures, including routines, to others.)
- 2010-01-11 16:08:26下载
- 积分：1
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SuoFang
本文是编程来实现图像缩放，从而熟悉图像的几何变换(This is a program to implement image scaling, so familiar with the image of the geometric transformation)
- 2010-05-13 14:27:46下载
- 积分：1
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jisuansuanfa
该程序能够实现信号的离散傅里叶变换，且算法简单，容易实现。(The program enables the signal discrete Fourier transform, and the algorithm is simple and easy to implement.)
- 2011-06-23 10:42:25下载
- 积分：1
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Magneticfield
6阶地球磁场计算程序，能够满足地球空间轨道磁场计算需求。(6 Order Earth s magnetic field calculation program to meet the computing needs of the magnetic field of Earth orbit space.)
- 2014-11-04 20:45:09下载
- 积分：1
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AdaptiveArithmaticCoding
自适应算术编解码，按paper编写，压缩包中附有paper。(adaptive arithmetic coding and decoding, prepared by the paper, compressed paper attached.)
- 2007-04-18 11:48:48下载
- 积分：1
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knn1
K最邻近密度估计技术是一种分类方法，不是聚类方法。
不是最优方法，实践中比较流行。
通俗但不一定易懂的规则是：
1.计算待分类数据和不同类中每一个数据的距离（欧氏或马氏）。
2.选出最小的前K数据个距离，这里用到选择排序法。
3.对比这前K个距离，找出K个数据中包含最多的是那个类的数据，即为待分类数据所在的类。(K nearest neighbor density estimation is a classification method, not a clustering method.
It is not the best method, but it is popular in practice.
Popular but not necessarily understandable rule is:
1. calculate the distance between the data to be classified and the data in each other (Euclidean or Markov).
2. select the minimum distance from the previous K data, where the choice sorting method is used.
3. compare the previous K distances to find out which K data contains the most data of that class, that is, the class to which the data to be classified is located.)
- 2017-08-09 21:06:38下载
- 积分：1
