ID3 算法，JAVA实现

应用背景This paper considers the problem of interference mitigation in multi-cell multi-antenna time division duplex (TDD) wireless systems for downlink transmission. An efficient way to obtain channel state information (CSI) at the base station is by using uplink pilots and reciprocity of the downlink channel. At the same time, it has been shown that pilots from different cells contaminate each other, resulting in corruption of precoding matrices used by base stations, and high inter-cell interference. This paper studies the effects of shifting the location of pilots in time frames used in neighboring cells, and its effectiveness in obtaining better channel estimates, and, thereby, inter-cell interference reduction.关键技术Wireless cellular network designs with multiple antennas have been adopted by several modern wireless systems, which aim for high throughput as well as high

Polimorpich文件加密系统。用delphixe2编程。在没有代码注释的情况下，不要使用AES、rijndael等。

自编的有限元方法解决弹性力学平面问题的软件。有图形显示，数据结构的处理值得一看。-directed the finite element method to solve the problem of elasticity plane software. A graphic display, data processing structure of the eye-catcher.

此程序绘制在 visual studio c + + 的计算机图形 3D 对象中使用 opengl 的犹他茶壶。此代码摘自补充材料，为 Chapter.This 程序为犹他茶壶、 茶杯和茶勺，使用数据集，并生成贝塞尔曲面使用 OpenGL 评价

c语言求解四阶龙格库塔法的算法源代码，例子：某一地区的病菌传染，三种人员的人数的状态方程，即可能受传染的人数x1,已被传染的病的人数x2，及已治愈的人数x3，并假设他们是因接触而传染。-c language for solving fourth-order Runge-Kutta method algorithm source code, example: a certain area of the bacteria infection, the number three state equation, which may be the number of infected x1, has been the number of disease-borne x2, and the number of people have been successfully cured x3, and assuming they are due to exposure and infection.

数值计算，利用newton迭代法和弦截法计算插值多项式-Numerical calculation, using newton iteration method chord intercept method to calculate the interpolation polynomial

主要用于分类。adaboost是目前分类最好的分类算法。通过不断学习改变样本的权重达到更好的分类效果。

克鲁斯卡尔算法最小生成树，普里姆生成最小生成树

根据已知数据的权重对数据进行拟合，若不能给出数据的权重就默认为数据权重为1.这种拟合 方法是根据最小二乘进行的。-The basis of known data on the weight of the data fitting, if the data should not give the weight for data on the default weight is 1. This method is based on least-squares fitting carried out.

两个链表情况下的排序-Sort under two list circumstance