无线通信的各种运动模型。适用于移动通信、无线传感器网络等领域。 包括：Random walk、random waypoint、random direction、boundless simulation area、 gauss-markov等运动模型 - probabilistic random walk
标签： random simulation direction boundless
上传时间： 2014-11-12
上传用户：libinxny
传统的以太网是一个广播型网络，网络中的所有主机通过HUB 或交换机相连，处在 同一个广播域中。HUB 是物理层设备，没有交换功能，接收的报文会向所有端口转 发；交换机是链路层设备，具备根据报文的目的MAC 地址进行转发的能力，但在 收到广播报文或未知单播报文（报文的目的MAC 地址不在交换机MAC 地址表中） 时，也会向除交换机报文入端口之外的所有端口转发。 上述情况使网络中的主机会收到大量并非以自身为目的地的报文，在浪费大量带宽 资源的同时，也造成了严重的安全隐患。 隔离广播域的传统方法是使用路由器，但是路由器成本较高，而且端口较少，无法 划分细致的网络。 为解决以太网交换机在LAN 中无法限制广播的问题，出现了VLAN（Virtual Local Area Network，虚拟局域网）技术。
上传时间： 2014-01-03
上传用户：qb1993225
In this book, you will learn about what drives the Linux development process. You will discover the wide variety of tools commonly used by Linux developers – compilers, debuggers, Software Configuration Management – and how those tools are used to build application software, tools, utilities and even the Linux kernel itself. You will learn about the unique components of a Linux system that really set it apart from other UNIX-like systems, and you will delve into the inner workings of the system in order to better understand your role as one of a budding new generation of Linux developers.
标签： will development the discover
上传时间： 2016-11-18
上传用户：rocketrevenge
This approach addresses two difficulties simultaneously: 1) the range limitation of mobile robot sensors and 2) the difficulty of detecting buildings in monocular aerial images. With the suggested method building outlines can be detected faster than the mobile robot can explore the area by itself, giving the robot an ability to “see” around corners. At the same time, the approach can compensate for the absence of elevation data in segmentation of aerial images. Our experiments demonstrate that ground-level semantic information (wall estimates) allows to focus the segmentation of the aerial image to find buildings and produce a ground-level semantic map that covers a larger area than can be built using the onboard sensors.
标签： simultaneously difficulties limitation addresses
上传时间： 2014-06-11
上传用户：waitingfy
This book is designed to teach you the best practices in developing Windows DNA applications. We have avoided making this book a primer on every technology associated with Windows DNA. If we had followed this course, this would be an encyclopedia set. Everyone has their favorite authors and books on the various technical subject areas. The market is full of books to teach you the basics, the how, this book tries to be different in that we pull out the important points to teach you about the why. If you need training in a particular technology covered in this book, Sams has a number of 24-hour and 21-day books that cover a wide range of topics.
标签： applications developing practices designed
上传时间： 2016-11-27
上传用户：yyq123456789
MySQL claims to be the world s most popular open source database, and with good reason. It is free, runs on a wide variety of platforms, is relatively simple, easy to configure and performs well even under significant load. By comparison to some other popular database management systems, configuring it is quite simple, but there are still a sufficiently wide variety of security-relevant configuration issues to make securing it a challenge.
标签： database popular claims source
上传时间： 2016-12-13
上传用户：王者A
The library is a C++/Python implementation of the variational building block framework introduced in our papers. The framework allows easy learning of a wide variety of models using variational Bayesian learning
标签： implementation variational introduced framework
上传时间： 2016-12-16
上传用户：eclipse
H.264/AVC, the result of the collaboration between the ISO/IEC Moving Picture Experts Group and the ITU-T Video Coding Experts Group, is the latest standard for video coding. The goals of this standardization effort were enhanced compression efficiency, network friendly video representation for interactive (video telephony) and non-interactive applications (broadcast, streaming, storage, video on demand). H.264/AVC provides gains in compression efficiency of up to 50％ over a wide range of bit rates and video resolutions compared to previous standards. Compared to previous standards, the decoder complexity is about four times that of MPEG-2 and two times that of MPEG-4 Visual Simple Profile. This paper provides an overview of the new tools, features and complexity of H.264/AVC.
标签： the collaboration between Experts
上传时间： 2013-12-30
上传用户：dongbaobao
Open Flash Chart is a program for creating charts in Flash to display in Web pages. You can create bar, line, area, and pie charts. It also includes server side classes to help generate the data file used as input. At the moment, there are classes for PHP, Perl, .NET, Java, Ruby (and Rails), and Python
标签： Flash creating display program
上传时间： 2014-01-15
上传用户：fandeshun
This a disk filter driver for Windows NT/2000/XP that uses a Linux swap partition to provide a temporary storage area formated to the FAT file system.
标签： partition Windows provide filter
上传时间： 2013-12-25
上传用户：royzhangsz
