A

在排序学习算法经常用到的评价指标 NDCG，计算检索的效果好坏(NDCG can be used to evaluate the ranking with multilevel relevance such as irrelevance, half relevance, and relevance. )

C language is currently the more popular high-level computer programming language, because of its simplicity, ease of use and powerful features have been widely favored by programmers. It is suitable as a system description language, can also be used to prepare the system software, application software can be written since

we present a practical link adaptation algorithm for MIMO-OFDM systems. The proposed solution is based on sounding the channel periodically and choosing the optimal mode that will maximize the throughput or energy efficiency (EE) while satisfying the application’s quality of service (QoS) requirements. In addition, we address practical problems such as the computational complexity of the algorithm and determination of sounding period by novel closed form solutions and iterative algorithms. Realistic link level simulations confirm that the proposed solution achieves significant improvement over existing link adaptation algorithms when the aim is to maximize the throughput, and provides orders of magnitude gain in energy efficiency compared to poorly chosen fixed modes when used for energy efficiency maximization purposes. The resulting algorithms are implemented on a real time MIMOOFDM testbed, and we report on the experimental results.

程序是基于贝叶斯最小错误率的分类器的设计，真确率达到98 ，学习模式识别的很好的程序(Program is based on the Bayes minimum error rate classifier design, true rate of 98 , a good learning pattern recognition program)

matlab编写的kmeans聚类算法，最后输出每类聚类结果，可自行制定分类数，(kmeans clustering algorithm matlab prepared, the final output of each type of clustering result, the number of self-classification could be developed)

数字图像隐藏技术的仿真，针对一个图片现将其转换为灰白图像，然后将要隐藏的图片加入样本中，加入椒盐噪声攻击，最后将图片还原。(Digital image information hiding technology simulation, for a picture now converted to gray image, will then be hidden image is added to the sample, adding salt and pepper noise attack, finally will restore the picture.)

通信信号处理需要的基本数学知识，包括线性代数、线性子空间、离散时间信号、Z变换、线性系统、统计特性等等。(digital signal processing in commnication system require some mathematical prelinaries including linear algebra,Z transform, linear system and stochastic process.)

（1）员工各种信息的输入,包括员工的基本信息、学历信息、婚姻状况信息和职称等； （2）员工各种信息的修改； （3）对于转出、辞职、辞退、退休员工信息的删除； （4）按照一定的条件,查询,统计符合条件的员工信息； （5）至少应该包括每个员工详细信息的查询，按婚姻状况查询、学历查询、工作岗位查询等； （6）至少应该包括按学历、婚姻状况、岗位、参加工作时间等统计各自的员工信息； （7）对查询,统计的结果打印输出。 ((1) the importation of all kinds of information employees, including employees of the basic information, education information, marital status and title information, etc. (2) the staff changes all kinds of information (3) for the transfer, resignation, dismissal, retirement of employee information deleted (4) in accordance with certain conditions, query, statistics eligible employees (5) at least every employee should include details of inquiries, according to marital status inquiries, academic information, job inquiries, etc. (6) should include at least according to their academic qualifications, marital status, status, statistics, etc. to participate in the working hours of their employees (7) of the query, the results of statistical printout.)

复旦大学自动控制理论ppt第1章,关于matlab的概述(Fudan University, Automatic Control Theory Chapter 1 ppt, an overview on matlab)

蒙特卡罗方法在由已知分布的随机抽样中的应用(Monte Carlo method of random sampling from the known distribution of the application)