BP 神经网络的基本思想：信号的正向传播+误差的反向传播。 ¡ 信号的正向传播：输入样本从输入层传入，经各隐层逐层处理后，传向输出层。 ¡ 误差的反向传播：将输入误差以某种形式通过隐层向输入层逐层反传，并将误差分摊给各层的所有单元，从而获得各层单元的误差信号来作为修正各单元权值的依据。 BP算法属于δ学习规则类，这类算法被称为误差的梯度下降（Gradient Descent）算法。 在此分类器中，本文选择3层BP神经网络算法。隐含层节点数为3。
上传时间： 2017-05-31
上传用户：jplalala
本开关电源设计采用STC12C5A60S2单片机发生47KHZ的PWM脉冲信号，经过IR2104控制MOS，从而控制整个BUCK（降压式变换）电路。单片机内部自带的10位ADC能通过电压电流检测电流实时反馈电流和电压数值，并由此调整输出的PWM的占空比，形成电流电压闭环控制系统。按键能设置输出电流从0.2A到2A，以0.01A递增，输出最大10V，液晶能显示实时输出电流与电压。根据测试，满载的供电效率为88%。按键设置的输出电流的误差小于0.01A。 关键词：开关电源，BUCK，STC单片机，IR2104，恒流源
上传时间： 2017-07-07
上传用户：砚子儿*
《饥荒》联机版代码 联机版代码大全及使用方法
标签： 代码
上传时间： 2017-07-21
上传用户：away0109
实验目的 1. 通过本实验，掌握线性表的顺序存储结构的定义及C语言的实现； 2. 熟练掌握线性表的基本操作在顺序存储结构上的实现；
标签： 顺序表
上传时间： 2017-10-20
上传用户：weisiteluo
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标签： 源代码
上传时间： 2017-11-17
上传用户：wendingchang
介绍了基于 0# 公司提供的 1)’ 芯片 0")/-.2$34.- 的自适应有源噪声控制（56789: ;<8=: 6<;7><?，,@$）系统，给出了系统的工作原理及其硬件结构，并详细说明了基于平均的 *+,*, （*8?7:>:A B C ,A5D789: *8?7:>8;E F87G ,9:>5E8;E）算法，给出了程序流程图和实验结果。通过实验证 明，该系统有较好的降噪效果
上传时间： 2017-12-05
上传用户：xiaoding
SharpMap是一个基于.net 2.0使用C#开发的Map渲染类库，可以渲染各类GIS数据（目前支持ESRI Shape和PostGIS格式），可应用于桌面和Web程序。 它的优点有： 1、占用资源较少，响应比较快。在对于项目中如果只需要简单的地图功能的话，是一个比 较好的选择 。 2、它是基于.NET 2.0环境下开发的，对于.NET环境支持较好。 3、使用简单，只要在.NET项目中引用相应的dll文件即可，没有复杂的安装步骤。 支持B/S及C/S两种方式的DLL调用，支持地图渲染效果 SharpMap最新版基于.NET Framework 4，采用C#开发的地图渲染引擎，非常易于使用。我这次给出的是比较稳定发布的V1.0版本和demo。
上传时间： 2018-01-09
上传用户：mawenyao
Fire and Fury。 This article is about the 2018 book. For other uses, see Fire and Fury (disambiguation). The title refers to a quote by Trump about the conflict with North Korea. The book became a New York Times number one bestseller.Fire and Fury: Inside the Trump White House is a 2018 book by Michael Wolff which details the behavior of U.S. President Donald Trump and the staff of his 2016 presidential campaign and White House. The book highlights descriptions of Trump's behavior, chaotic interactions among senior White House staff, and derogatory comments about the Trump family by former White House Chief StrategistSteve Bannon. Trump is depicted as being held in low regard by his White House staff, leading Wolff to state that "100% of the people around him" believe Trump is unfit for office.[1] Reviewers generally accepted Wolff's portrait of a dysfunctional Trump administration, but were skeptical of many of the book's most controversial claims.
上传时间： 2018-02-26
上传用户：Yoobaobao
This article is about the 2018 book. For other uses, see Fire and Fury (disambiguation). The title refers to a quote by Trump abot the conflict with North Korea. The book became a New York Times number one bestseller.Fire and Fury: Inside the Trump White House is a 2018 book by Michael Wolff which details the behavior of U.S. President Donald Trump and the staff of his 2016 presidential campaign and White House. The book highlights descriptions of Trump's behavior, chaotic interactions among senior White House staff, and derogatory comments about the Trump family by former White House Chief StrategistSteve Bannon. Trump is depicted as being held in low regard by his White House staff, leading Wolff to state that "100% of the people around him" believe Trump is unfit for office.[1] Reviewers generally accepted Wolff's portrait of a dysfunctional Trump administration, but were skeptical of many of the book's most controversial claims.
上传时间： 2018-02-26
上传用户：Yoobaobao
帮助你下载 QuartusII 6.0软件安装方法
上传时间： 2018-04-19
上传用户：1223321
