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电子签章系统源代码
电子签章系统的源代码，实现功能签章，WORD、EXCEL都可以
- 2020-11-30下载
- 积分：1
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超级实用的multism声光控路灯控制系统仿真（适合数电、模电的课程设计）
利用MULTISIM仿真出声光控路灯控制系统，并具有交直流变换的功能，在光控方面加以改进，有别于网上的其他资料。需要注意的是：1.实际电压为220V,但multisim里的灯泡最高只支持120V的，所以在仿真中改用了120V交流电源2.对于时间常数乙的选择，RC应大于（3~5）T/2,实际中T大约为30秒，但仿真中时间步进太短，所以仿真中的T调得很小3.使用MULTISIM 11打开文件
- 2020-12-06下载
- 积分：1
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【PDF】《Machine learning A Probabilistic Perspective》 MLAPP；by Kevin Murphy
完整版，带目录，机器学习必备经典；大部头要用力啃。Machine learning A Probabilistic PerspectiveMachine LearningA Probabilistic PerspectiveKevin P. MurphyThe mit PressCambridge, MassachusettsLondon, Englando 2012 Massachusetts Institute of TechnologyAll rights reserved. No part of this book may be reproduced in any form by any electronic or mechanicalmeans(including photocopying, recording, or information storage and retrieval)without permission inwriting from the publisherFor information about special quantity discounts, please email special_sales@mitpress. mit. eduThis book was set in the HEx programming language by the author. Printed and bound in the UnitedStates of AmLibrary of Congress Cataloging-in-Publication InformationMurphy, Kevin Png:a piobabilistctive/Kevin P. Murphyp. cm. -(Adaptive computation and machine learning series)Includes bibliographical references and indexisBn 978-0-262-01802-9 (hardcover: alk. paper1. Machine learning. 2. Probabilities. I. TitleQ325.5M872012006.31-dc232012004558109876This book is dedicated to alessandro, Michael and stefanoand to the memory of gerard Joseph murphyContentsPreactXXVII1 IntroductionMachine learning: what and why?1..1Types of machine learning1.2 Supervised learning1.2.1Classification 31.2.2 Regression 83 Unsupervised learning 91.3.11.3.2Discovering latent factors 111.3.3 Discovering graph structure 131.3.4 Matrix completion 141.4 Some basic concepts in machine learning 161.4.1Parametric vs non-parametric models 161.4.2 A simple non-parametric classifier: K-nearest neighbors 161.4.3 The curse of dimensionality 181.4.4 Parametric models for classification and regression 191.4.5Linear regression 191.4.6Logistic regression1.4.7 Overfitting 221.4.8Model selection1.4.9No free lunch theorem242 Probability2.1 Introduction 272.2 A brief review of probability theory 282. 2. 1 Discrete random variables 282. 2.2 Fundamental rules 282.2.3B292. 2. 4 Independence and conditional independence 302. 2. 5 Continuous random variable32CONTENTS2.2.6 Quantiles 332.2.7 Mean and variance 332.3 Some common discrete distributions 342.3.1The binomial and bernoulli distributions 342.3.2 The multinomial and multinoulli distributions 352. 3.3 The Poisson distribution 372.3.4 The empirical distribution 372.4 Some common continuous distributions 382.4.1 Gaussian (normal) distribution 382.4.2Dte pdf 392.4.3 The Laplace distribution 412.4.4 The gamma distribution 412.4.5 The beta distribution 422.4.6 Pareto distribution2.5 Joint probability distributions 442.5.1Covariance and correlation442.5.2 The multivariate gaussian2.5.3 Multivariate Student t distribution 462.5.4 Dirichlet distribution 472.6 Transformations of random variables 492. 6. 1 Linear transformations 492.6.2 General transformations 502.6.3 Central limit theorem 512.7 Monte Carlo approximation 522.7.1 Example: change of variables, the MC way 532.7.2 Example: estimating T by Monte Carlo integration2.7.3 Accuracy of Monte Carlo approximation 542.8 Information theory562.8.1Entropy2.8.2 KL dive572.8.3 Mutual information 593 Generative models for discrete data 653.1 Introducti653.2 Bayesian concept learning 653.2.1Likelihood673.2.2 Prior 673.2.3P683.2.4Postedictive distribution3.2.5 A more complex prior 723.3 The beta-binomial model 723.3.1 Likelihood 733.3.2Prior743.3.3 Poster3.3.4Posterior predictive distributionCONTENTS3.4 The Dirichlet-multinomial model 783. 4. 1 Likelihood 793.4.2 Prior 793.4.3 Posterior 793.4.4Posterior predictive813.5 Naive Bayes classifiers 823.5.1 Model fitting 833.5.2 Using the model for prediction 853.5.3 The log-sum-exp trick 803.5.4 Feature selection using mutual information 863.5.5 Classifying documents using bag of words 84 Gaussian models4.1 Introduction974.1.1Notation974. 1.2 Basics 974. 1.3 MlE for an mvn 994.1.4 Maximum entropy derivation of the gaussian 1014.2 Gaussian discriminant analysis 1014.2.1 Quadratic discriminant analysis(QDA) 1024.2.2 Linear discriminant analysis (LDA) 1034.2.3 Two-claSs LDA 1044.2.4 MLE for discriminant analysis 1064.2.5 Strategies for preventing overfitting 1064.2.6 Regularized LDA* 104.2.7 Diagonal LDA4.2.8 Nearest shrunken centroids classifier1094.3 Inference in jointly Gaussian distributions 1104.3.1Statement of the result 1114.3.2 Examples4.3.3 Information form 1154.3.4 Proof of the result 1164.4 Linear Gaussian systems 1194.4.1Statement of the result 1194.4.2 Examples 1204.4.3 Proof of the result1244.5 Digression: The Wishart distribution4.5. 1 Inverse Wishart distribution 1264.5.2 Visualizing the wishart distribution* 1274.6 Inferring the parameters of an MVn 1274.6.1 Posterior distribution of u 1284.6.2 Posterior distribution of e1284.6.3 Posterior distribution of u and 2* 1324.6.4 Sensor fusion with unknown precisions 138
- 2020-12-10下载
- 积分：1
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the zynq book.pdf
【实例简介】一本新出的关于zynq的新书，英文版的，里面对xilinx zynq的开发，有详细的探讨与运用。
- 2021-12-07 00:39:39下载
- 积分：1
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语音识别，智能机器人聊天，手机APP
Hbuilder开发跨平台APP，兼容IOS和Android，科大讯飞语音识别，图灵机器人智能聊天，语音对话，将代码中的key和appid替换成自己的
- 2020-12-10下载
- 积分：1
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基于LEACH算法的改进算法GAF算法
在matlab上仿真运行，结果比LEACH算法表现更好。
- 2020-12-04下载
- 积分：1
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不同倾斜面上太阳辐射量的计算
采用Klein.S.A和Theilacker.J.C所提出的月平均太阳辐射量的计算方法，计算倾斜面上的太阳辐射量
- 2020-12-01下载
- 积分：1
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基于LabVIEW时频分析的滚动轴承故障诊断.pdf
以LabVIEW为平台设计滚动轴承振动信号分析软件,实现对滚动轴承故障信号的时域分析和频域分析。时域分析主要实现对滚动轴承振动信号的自相关、均值、有效值、峰值以及峭度值分析。对滚动轴承振动信号的频域分析主要完成对滚动轴承振动信号的幅值频谱分析、功率谱分析、Hilbert包络谱分析、倒频谱分析以及ZOOM-FFT分析。
- 2020-12-10下载
- 积分：1
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基于RS232通讯的电池管理系统源码
基于RS232通讯的电池管理系统源码，对于电池管理系统BMS的一款监控上位机软件，仅供学习参考。
- 2019-10-14下载
- 积分：1
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FTP-628热敏打印头datasheet.pdf
【实例简介】FTP-628热敏打印头,内有步进电机资料，用于热敏打印机开发。
- 2021-12-04 00:59:34下载
- 积分：1
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