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Description: Bradley A. Hanson
Date: October 28, 1998
Revised: September 27, 2000
Summary: These are notes to accompany a lecture I gave in a seminar at the University of Iowa taught by Mike Kolen. A detailed description is given of using the EM algorithm to compute maximum likelihood parameter estimates in IRT models for dichotomous items. An example of applying the procedures described is given using a generalized Guttman scale model. Brief descriptions of how to use the EM algorithm to compute Bayes modal parameter estimates and maximum likelihood parameter estimates for polytomous IRT models are given in the final section.
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Author: sherry.zxling@gmail.com |
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Description: 简介： 功能介绍： 1：多用户统计系统，防止刷新,速度快,适用广泛 2：综合统计,最近访问,地区分析,地址分析,屏幕大小,来访页面,访问次数, 操作系统,当前在线,IP地址,浏览器,年报表,月报表,周报表,历史报表,日报 表等 3:可以精确的跟踪统计每一位来访者的IP与在线时间-同一IP在线每隔5分钟 才能增加一个计数(你也可以修改时间，在stat.jsp页你把ExTime改为你想要 的时间，即 int ExTime=5;)。 4：提供详细IP数据包，让你清楚的知道来访者是来是何方 用户名：admin,密码：admin-Description: Features: 1: Multi-user statistical system to prevent the refresh speed, applicable to a wide range 2: General Statistics, a recent visit, regional analysis, address analysis, screen size, visit the page, visits, operating system, the current line, IP address, browser, Annual Report, the monthly statements, Zhou statements, historical statements, statements such as day 3: can accurate tracking statistics every visitors IP and online time- the same IP online every five minutes in order to add a count ( You can also modify the time, you stat.jsp page ExTime you want to read the time, that int ExTime = 5 ). 4: to provide detailed IP data packets, so you clearly know that visitors come to is where the user name: admin, Password: admin
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Size: 689152 |
Author: 莲叶 |
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Description: 本程序功能： 1、修改文件或目录的产生、修改时间，及各种属性； 2、能够自动判断本程序是否重载，并给出提示； 3、增加了隐藏到系统托盘的功能，并修改了关闭功能； 4、实现对话框的动画弹出和消隐，增强程序的美观性 5、增加了系统热键功能，窗口隐藏时Ctrl+Alt+X可以呼出； 6、置窗体为最顶层显示，并去掉了任务栏的窗体 7、新增了鼠标在主窗口上移动时，显示手形光标功能。-this program functions : a revised list of documents or create, modify, and attributes; 2, can automatically judge whether the procedure heavy, and gives prompts; 3, a system tray to hide the functions and revised the closing function; Four realize right then pop-up frames of animation and hidden, to enhance the beauty of procedure 5, a system hotkey function, the window hidden when Ctrl Alt X can exhale; 6, home to the most top-level windows, and removed the task bar of Form 7, a mouse in the new window on the main mobile, hand-shaped display the cursor function.
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Size: 631808 |
Author: 就不填 |
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Description: 打开多个文件的例子(33KB)19fileinfo1.zip取得文件信息(4KB)20文件操作相关.zip常用的4个文件函数：检查文件是否存在； 分离文件路径等(2KB)21winpe.zip分析PE文件格式(105KB)-open multiple files example (33KB) 19fileinfo1.zip obtained the document information (4KB) 20 documents related operations. Zip four common document functions : check file exists; Separation documents path, etc. (2 KB) 21winpe.zip analysis PE file format (105KB )
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Size: 33792 |
Author: 陈新 |
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Description: 某贸易中心共10层，设有载客电梯1部。为了处理问题的方便，有以下的限定条件： （1） 电梯的运行规则是：可到达每层。 （2） 每部电梯的最大乘员量均为K人（K值可以根据仿真情况在10~20人之间确定）。 （3） 仿真开始时，电梯随机地处于其符合运行规则的任意一层，为空梯。 （4） 仿真开始后，有N人(>20人)在该国际贸易中心的1层，开始乘梯活动。 （5） 每个人初次所要到达的楼层是随机的，开始在底层等待电梯到来。 （6） 每个人乘坐电梯到达指定楼层后，再随机地去往另一楼层，依此类推，当每人乘坐过L次（L值可以根据仿真情况在3~10次之间确定）电梯后，第L+1次为下至底层并结束乘梯行为。到所有人结束乘梯行为时，本次仿真结束。 （7） 电梯运行速度为S秒/层（S值可以根据仿真情况在1~5之间确定），每人上下时间为T秒（T值可以根据仿真情况在2~10之间确定）。 （8） 电梯运行的方向由先发出请求者决定，不允许后发出请求者改变电梯的当前运行方向，除非是未被请求的空梯。-a total of 10 layers, with a passenger elevator. To address the issue of convenience, have the following qualifications : (a) lift the operating rules is : can be reached on each floor. (2) each lift crew of the largest volume of all K (K value can be based on the simulation of the 10 to 20 between determined). (3) simulation at the beginning, randomly located in the lift line with its rules of operation arbitrary layer of air staircase. (4) simulation began, a N (gt; 20) at the International Trade Center in one layer, started by ladder activities. (5) Each person must first reach the floors are random, in the bottom wait for the elevator arrived. (6) Each person taken the lift arrived at the designated floor and then another random foot to the floor, and so on, when each rode L (L value c
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Size: 9216 |
Author: 张虹 |
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Description: 此文档是网上一款开发板的完整系统,内附有电路图纸!系统有完整的接口程式,包含了字符型LCD驱动,pc串口通讯程式,flash读写驱动程式,中文字库,ad芯片驱动程式,keyscan4*4扫描程式-this document is the development of new online integrity of the system board, enclosing a circuit drawings! A complete system interface programs, includes character LCD driver, PC serial communications programs, flash-driven programs to read and write, Chinese character, ad chip-driven programs, keyscan4* 4 scanning programs
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Size: 465920 |
Author: king |
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Description: A method is presented for augmenting an extended
Kalman filter with an adaptive element. The resulting estimator
provides robustness to parameter uncertainty and unmodeled
dynamics.-A method is presented for augmenting an ext Kalman ended with an adaptive filter element. T he resulting estimator provides robustness to parameter uncertainty and unmodeled dynamics .
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Author: rifer |
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Description: 4阶6阶及8阶的辛几何算法源程序计算分子模型-four-six-eight bands and the symplectic geometry algorithm source molecular model
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Size: 2048 |
Author: 黄志祥 |
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Description: 模态参数识别的文章，主要介绍了RFP方法，个人觉得有很大的参考价值，希望对大家有用。同时本人根据次文章编写了程序。希望对作此方向的学友起到帮助！-Modal parameter identification of the article, the main method of introduction of the RFP, personal feel that there is a great reference value, in the hope that useful to everyone. At the same time I prepared the article under the sub-procedures. Wish to make in this direction Xueyou help!
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Size: 114688 |
Author: wfx670 |
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Description: 可以进行曲线回归拟合算法的四参数算法。函数为 y = (a-d)/(1+(x/c)^b) +d . ec50.m 为其主要函数-Can curve fitting algorithm of the four-parameter algorithm. Function y = (ad)/(1+ (X/c) ^ b)+ D. Ec50.m its main function
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Size: 2048 |
Author: 2213 |
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Description: 简要阐述了遗传算法的基本原理，并对O0PQ0R 遗传算法工具箱（"0SP）的参数进行
了详细的介绍。探讨了O0PQ0R 遗传算法工具箱在参数优化和非线性规划中的应用，实例证明了遗
传算法在参数优化和非线性规划中的可行性。-Briefly described the basic principles of genetic algorithms and genetic algorithms O0PQ0R Toolbox ( 0SP) the parameters in detail. O0PQ0R explored the genetic algorithm toolbox in the parameter optimization and nonlinear programming applications, examples of proven genetic algorithm in parameter optimization and nonlinear programming feasibility.
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Size: 641024 |
Author: dh |
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Description: 基于面部动画参数抽取的特征跟踪,做模式识别方面的比较适合-Based on the facial animation parameter extraction of feature tracking, and more suitable for pattern recognition aspects
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Size: 154624 |
Author: 111 |
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Description: 何振亚的现代谱估计.本书全面系统地论述了现代谱估计技术中的各种理论与方法。全书共九章，内容包括；纯连续谱沽计的AR与ARMA模型参量法、纯离散谱与混合谱估汁的正弦组合与阻尼复指数模型参量法、非参量法谱估计的最小方差法与奇异值/特征值分解处理法、应用信息论的墒谱估汁法、多谱(高阶谱)估计、二维潜估计与多维阵列谱估计。本书取材广泛，内容新颖，理论联系实际，系统性强。
-He Zhenya Modern spectral estimation. This book comprehensively and systematically discusses the modern spectral estimation techniques in a variety of theories and methods. Book a total of nine chapters, including pure continuous spectrum of sell ARMA model with AR parameter method, pure discrete spectrum and mixed spectrum estimation of sinusoidal juice combination of complex exponential model with the damping parameter method, non-parameter method of minimum variance spectral estimation method with the singular value/eigenvalue decomposition treatment method, the application of information theory the entropy spectrum estimation juice method, multi-spectral (HOS) estimates that two-dimensional latent estimation and multi-dimensional spectral estimation array. The book based on a wide range of content of a novel theory with practice, systemic strong.
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Size: 6134784 |
Author: songzy41 |
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Description: Problem F:汽车加油
Time Limit:1000MS Memory Limit:65536K
Total Submit:1400 Accepted:404
Language: not limited
Description
一辆汽车加满油后可行驶n公里。旅途中有若干个加油站。设计一个有效算法，指出应在哪些加油站停靠加油，使沿途加油次数最少。
编程任务：
对于给定的n和k(k <= 10000)个加油站位置，编程计算最少加油次数。
Input
第一行有2 个正整数n和k，表示汽车加满油后可行驶n公里，且旅途中有k个加油站。接下来的1 行中，有k+1 个整数，表示第k个加油站与第
k-1 个加油站之间的距离。第0 个加油站表示出发地，汽车已加满油。第k+1 个加油站表示目的地。
Output
输出最少加油次数。如果无法到达目的地，则输出”No Solution”。
Sample Input
7 7
1 2 3 4 5 1 6 6
Sample Output
4
-err
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Author: rbscau |
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Description: 对于如何设计数字PLL的参数很有帮助.
分析了在最小等效噪声带宽，最小相位均方误差，以及最短锁定时间三种意义上的参数优化设计-For how to design the parameters of the digital PLL helpful. Analysis of the minimum noise equivalent bandwidth, minimum-phase mean-square error, as well as the minimum lockout time of three within the meaning of parameter optimization design
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Size: 82944 |
Author: 葭葭 |
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Description: 取苹果 只是简单的游戏 没有用到富格纳斯数-Apple simply check the game did not use a few rich Magnus
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Size: 1024 |
Author: kwxiang |
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Description: 利用计算机模拟显示Fraunhofer多缝衍射的光强分布曲线
分别作出：（1）多缝干涉光强分布曲线；
（2）单缝衍射光强分布曲线；
（3）多缝衍射光强分布曲线；
（4）分别作出以上分布曲线对应的图样；
（5）当遮住偶数缝时相应的光强分布图；
（6）当遮住3的倍数缝时相应的光强分布图。
-The use of computer simulation show that multi-slit Fraunhofer diffraction of light intensity distribution curve, respectively, to: (1) multi-slit interference of light intensity distribution curve (2) single-slit diffraction of light intensity distribution curve (3) multi-slit diffraction of light intensity distribution curve ( 4) respectively over the corresponding distribution curve pattern (5) When the cover sewing even when the corresponding light intensity distribution (6) When the cover 3 when multiple joints corresponding light intensity distribution.
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Size: 4096 |
Author: zj |
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Description: 一部关于实心转子异步电动机设计、参数分析及原理方面的经典著作！-1 on the design of solid rotor induction motor, parameter analysis and the principle of respect classics!
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Size: 3844096 |
Author: funny |
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Description: Qt 4 中文版的书，目前此类书很少，qt 4的中文版的就更少了。主要讲解qt 4的入门，软件的安装之类的，是一个超级棒的入门教材！-Qt 4 The Chinese version of the book, currently very few such books, qt 4 of the Chinese version even less. On the qt 4 main entry, software installation like it is a superb introductory textbooks!
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Size: 2030592 |
Author: 曾剑元 |
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Description: 基于Matlab的AR模型参数估计,用实例说
明运用Matlab 进行AR( n) 参数估计的方法。-Matlab-based AR model parameter estimation, using examples of the use of Matlab to AR (n) parameter estimation method.
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Author: ppp0001 |
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