The Staged Event-Driven Architecture (SEDA) is a new design for building scalable Internet services. SEDA has three major goals: To support massive concurrency, on the order of tens of thousands of clients per node To exhibit robust performance under wide variations in load and, To simplify the design of complex Internet services. SEDA decomposes a complex, event-driven application into a set of stages connected by queues. This design avoids the high overhead associated with thread-based concurrency models, and decouples event and thread scheduling from application logic. SEDA enables services to be well-conditioned to load, preventing resources from being overcommitted when demand exceeds service capacity. Decomposing services into a set of stages also enables modularity and code reuse, as well as the development of debugging tools for complex event-driven applications.
标签: Event-Driven Architecture Internet building
上传时间: 2015-09-28
上传用户:日光微澜
QccPackSPIHT-0.54-1 (release 2007-04-30) The Set Partitioning in Hierarchical Trees (SPIHT) algorithm for wavelet-based image coding .
标签: QccPackSPIHT Partitioning Hierarchical release
上传时间: 2014-02-15
上传用户:lacsx
QccPackSPECK-0.54-1 (release 2007-04-30) is The Set-Partitioning Embedded Block (SPECK) algorithm for wavelet-based image coding.
标签: Set-Partitioning QccPackSPECK algorithm Embedded
上传时间: 2013-12-04
上传用户:silenthink
Demonstrates 1-D FDTD initial state formation. Please edit the FLAGS for demonstration of different cases. BASED ON "1-D Digital Waveguide Modeling for Improved Sound Synthesis".
标签: demonstration Demonstrates formation different
上传时间: 2014-07-13
上传用户:WMC_geophy
This Document provides the High Level Design specification for the Bootloader development and library porting for ADSP-BF533 based EZ-Kit Lite Board and STAMP Board. This document is meant to be the one of the inputs for the System Test Plan and the overall implementation of the same. This document also details the approach and assumptions made for the design
标签: specification development Bootloader the
上传时间: 2015-10-14
上传用户:D&L37
A general technique for the recovery of signicant image features is presented. The technique is based on the mean shift algorithm, a simple nonparametric pro- cedure for estimating density gradients. Drawbacks of the current methods (including robust clustering) are avoided. Feature space of any nature can be processed, and as an example, color image segmentation is dis- cussed. The segmentation is completely autonomous, only its class is chosen by the user. Thus, the same program can produce a high quality edge image, or pro- vide, by extracting all the signicant colors, a prepro- cessor for content-based query systems. A 512 512 color image is analyzed in less than 10 seconds on a standard workstation. Gray level images are handled as color images having only the lightness coordinate
标签: technique presented features recovery
上传时间: 2015-10-14
上传用户:410805624
基于FPGA的I2C总线模拟,采用verilog HDL语言编写。- Based on the FPGA I2C main line simulation, uses verilog the HDL language compilation.
上传时间: 2013-12-13
上传用户:PresidentHuang
基于内容的新闻视频检索系统,Study of Content-based News Video Retrieval System,优秀硕士论文
上传时间: 2014-01-27
上传用户:hzy5825468
书名:基本商业程序的建模 Essential Business Process Modeling (Paperback) 作者: Mike Havey 出版商:O Reilly 1 edition (August 18, 2005) 内容介绍: Ten years ago, groupware bundled with email and calendar applications helped track the flow of work from person to person within an organization. Workflow in today s enterprise means more monitoring and orchestrating massive systems. A new technology called Business Process Management, or BPM, helps software architects and developers design, code, run, administer, and monitor complex network-based business processes. BPM replaces those sketchy flowchart diagrams that business analysts draw on whiteboards with a precise model that uses standard graphical and XML representations, and an architecture that allows it converse with other services, systems, and users.
标签: Essential Paperback Business Modeling
上传时间: 2015-10-21
上传用户:zhangyigenius
In this paper we propose to reduce the textural components by modelling the coefficients of a wedgelet based regression tree instead of the original pixel intensities
标签: coefficients components modelling the
上传时间: 2015-10-22
上传用户:gxmm