一种新的通用可视化平台的模块设计工具

介绍了一个模块自动封装工具ＭＥ，它是通用的交互式可视化环境ＧＩＶＥ系统中的一个相对独立的部分。该系统提供了一个模块级编程环境，支持用户通过“塔积木”式的方法，从模块库中选取合适的模块，建可视化流图。     

通用的交互式可视化环境

本文介绍了通用的交互式可视化环境ＧＩＶＥ（ｇｅｎｅｒａｌｉｎｔｅｒａｃｔｉｖｅｖｉｓｕａｌｉｚａｔｉｏｎｅｎｖｉｒｏｎｍｅｎｔ）的设计和实现技术．ＧＩＶＥ以数据流机制为核心，采用可视编程界面，为用户开发可视化应用提供了一个方便交互的模块级编程环境．与同类软件相比，ＧＩＶＥ具有如下特点：提供分支和循环控制结点，支持复杂应用程序的构建；支持应用模块和数据类型的扩充，系统具有良好的开放性；提供丰富的模块库．     

面向应用的可视化环境ASVE

通过分析在面向应用的可视化系统开发中存在的问题和需求,提出了面向应用的可视化环境（ＡＳＶＥ）体系结构,它包含建模、计算和可视化（ＭＣＶ）三部分,建模模块通过采用属性映射技术和应用编程接口的统一数据模型,有效地支持了应用中的计算和可视化,使用户可以方便、灵活、可扩展地构建面向应用的可视化环境,最后给出了一个１５０ｔ电弧炉偏弧炉研究可视化应用系统的实例。     

舆情可视化分析系统设计与实现

在网络信息爆炸的今天，对海量的网络舆情数据进行可视化分析展示具有重要意义。文章从文本内容、情感倾向、数据来源结合时间和空间维度，对网络舆情进行多维度关联可视化分析。基于ECharts可视化图表库完成网络舆情可视化分析系统的开发。该系统用丰富的图表展示用户关心的舆情信息，支持用户创建事件、图表切换、报告下载等功能。通过该系统能够帮助用户掌握舆情分布、发展态势和演进规律，辅助用户做出决策，避免舆论危机发生。     

面向多领域的可视化应用开发平台MOVADP

ＭＯＶＡＤＰ是一个面向多领域的可视化应用开发平台，文中主要介绍了该平台的软件结构和实现技术，ＭＯＶＡＤＰ以数据流机制为核心，采用可视编程技术，为用户开发可视化应用提供了一个文凭交互的模块级图形编程环境，与同类平台相比，ＭＯＶＡＤＰ的特点在于，引入了ＩＦＴＨＥＮ－ＥＬＳＥ，ＷＨＩＬＥ－ＬＯＯＰ等控制结构，支持用户构建复杂的可化应用流图；支持“ｌａｚｙｅｖａｌｕａｔｉｏｎ”命令驱动方式下的流图局部运行     

GridMol:一个基于网格的分子可视化系统

介绍了一个基于网格环境、支持大分子显示的远程可视化系统GridMol。系统采用Browser-Server结构,客户端采用Java3D实现,服务器端使用面向对象方法实现了支持多种文件格式的数据处理,同时采用了特定的数据格式以减小网络数据传输。整个系统置于网格环境下,用户通过ChinaGrid的VisPortal进行访问。     

J2ME手机游戏开发平台的设计与实现

通过分析J2ME手机游戏的运行环境和基本结构，设计了一个基于J2ME的可视化手机游戏开发平台，阐述了该平台各模块的功能及实现方案。该平台能在不编写代码的情况下，通过拖放图标、输入参数等可视化操作来开发J2ME手机游戏，极大地降低了移动终端多媒体应用的设计和开发门槛。     

热力系统图形化建模软件的开发

以热力系统的基本设备为单元，建立了热力系统常见设备的动态数学模型。采用可视化建模的方法开发了热力系统的图形化建模环境。该环境识别图形建模的结果，通过连接关系进行拓扑排序，读取模块库中对应模块的代码自动生成仿真源程序。作为开放的仿真系统，为用户提供了模型再开发环境、友好的人机接口和仿真后处理手段。     

电磁环境可视化系统的设计与开发

本文构建了电磁环境可视化系统的总体框架,将系统划分为数据预处理与基础地理环境构建、数据库管理与维护、电磁环境计算与分析、电磁态势可视化和综合统计分析与决策支持五个模块.介绍了系统各模块的设计和实现方法,完成了系统的总体开发和集成,实现了区域电磁环境计算与可视化,为指挥员提供及时、全面、动态的电磁态势信息.     

程序执行进度可视化模块设计

以往的程序设计，主要在程序的结构、算法及执行速度上下功夫，程序几乎是“默默”地运行，至于处理多长时间，用户要等待多久就不得而知了。如果能将程序执行速度输出到屏幕上，不仅会大大平息用户焦急等待的心情，且不会影响处理速度，从而实现程序执行进度可视化。本文所提供的程序执行进度可视化通用模块的设计方法，适用于任何数据库管理系统，只要存在批量数据处理，就可直接调用本模块。本模块将关键数据参数化，应用程序可在需要处直接调用。进度可视窗的定义进度可视窗设计：一般程序界面均占用上半屏幕主要区域，所以本窗口开设在…     

Study on the country risk rating with distributed crawling system

This paper built a system containing the Distributed Crawling Module, the Database Module and the Analysis Module to collect a large number of objective data, clean the data and realize the business intelligence representation. The distributed crawling system includes the Distributed Crawling Module building from Hadoop, the Database Module by SQL Server and the Analysis Module by the SAS system. The first two modules support a distributed way to collect and convert non-structural data into structural data for the last module processing. Then, this paper extends research fields from theory to application about B&R, constructs rating system from the perspective of political risk, economic risk, financial risk, business environment risk and legal risk, establishes a 140 rating index, collects 46,200 sample data, and adopts Model of Principal Components Analysis, Analytic Hierarchy Process and Efficacy Function to access “the Belt & Road Initiative” 66 countries for 5 consecutive years of export credit insurance in the country risk rating. This paper also gives a detail explanation on 2015 rating results, showing that, Singapore wins the highest credit rating among the country; the credit rating of Latvia, Estonia, Slovakia, Turkey, Malaysia, Russia, Thailand and other countries is very high; Afghanistan, Ukraine, Laos, Iran, Arabia, Republic of Syria, Iraq, Burma, Republic of Yemen, East Timor and other countries with poor credit ratings. The conclusion is consistent with the domestic and overseas well-known rating agencies.

     

Managing application level quality of service through TOMTEN

With the growth of mobile computing, users will have simultaneous access to multiple overlaid networks, each with different characteristics, services and costs. This paper introduces TOMTEN (TOtal Management Of Transmissions for the ENd-user), a framework for managing resources in both this type of environment as well as the traditional single network environment. TOMTEN is a reactive framework that is only activated when either the application is started or the user indicates dissatisfaction with a current session. The reactive architecture of TOMTEN also supports application adaptivity. Application adaptivity in TOMTEN does not require modifications to the application and is done transparently using proxy modules.     

面向测量应用的软件保护模型

贸易结算等测量应用要求计量软件及运行环境能有效防范包括管理员在内的各类用户的非授权篡改,但难以得到现有安全模型的有效支持。为此提出面向测量应用的软件保护模型MBSPM,基于角色—域—型访问控制策略分配数据访问权限,利用强制访问控制实施数据分级保护和法制相关软件隔离,依靠防篡改存储防止计量参数的非授权修改,基于可信平台模块(TPM)保护运行环境的完整性。基于虚拟称重系统的应用实例表明,MBSPM可支持计量应用所要求的软件保护特性,与不实施MBSPM的情况相比较,除系统启动时间增加大约50%之外,文件打开和应用启动等操作的速度下降均不超过20%。     

PCS System I: point counting stereology programs for cell biology

PCS System I (PCS) is a set of four software modules designed to simplify the application of stereology to problems in cell biology. It is written in BASIC for the Tektronix 4052A microcomputer (Beaverton, OR). A Counting Module collects raw data counts in either a Density Mode (points, intersections, transections, profiles) or a Boundary Mode (intersections with complete nuclear profiles). This information is stored on tape or disk data files and can also be printed. Three analysis modules use data files created with the Counting Module. The Density Module uses Density Mode data files to calculate volume, surface, length, and numerical densities. The B Numerical Density Module uses both Boundary Mode and Density Mode data to calculate the means for the boundary, diameter, and surface area of a nuclear compartment. The mean nuclear surface area is then used with the nuclear surface density to estimate the nuclear numerical density, which, in turn, is used to calculate surface areas of membrane compartments in average cells and in 10(6) cells. The Format Module reformats raw data files for analysis with Tektronix statistical software.     

Providing accessibility to blind people using GIS

In everyday life, people need to move, whether in business or leisure. Navigation requires spatial knowledge and ability to make decisions based on geographic information. Recently, powerful tools have been developed, enhancing the capabilities of geographical analysis and decision-making. This work presents a platform to handle and provide geographic information, including accessibility oriented features. This geographic information system (GIS) is part of a wider project, called SmartVision. The aim of this project is to create a system that allows blind users to navigate in the University of Trás-os-Montes and Alto Douro campus. The GIS platform, together with other modules of the SmartVision system prototype, provides information to blind users, assisting their navigation and giving alerts of nearby points-of-interest or obstacles. Together with the GIS platform, this paper also describes the handling of accessibility information by the SmartVision prototype, namely the Navigation Module, the Computer Vision Module and the Interface Module.     

用于运动估计的对角线匹配准则与硬件实现

根据运动估计块匹配原理提出对角线匹配准则．该算法相较于运动估计中常用的SAD、MSE和MAD匹配．在大幅减少计算量的同时,运动估计质量只有很少的下降。该匹配算法可应用于各种搜索策略,并且都有良好的效果。根据算法设计硬件结构．还有一种用于该结构的双斜光栅扫描方式和相关的可复用资料的交叉寄存器组结构．可充分利用运动估计中交叠的数据。该结构通过FPGA验证．当频率为240MHz时4个运动估计电路并行工作就可以完全满足解析度为1280x720@30fps的实时性要求。     

直播服务器一般性框架体系设计

基于流媒体服务器设计框架,结合直播服务器本身的功能、特性,并综合考虑波动的网络环境对其的影响,给出一种适用于直播服务器的一般性的实现框架。在这个实现框架中直播服务器由四个功能模块组成:速率控制模块、差错控制模块、质量自适应模块以及缓冲区控制模块。这四个功能模块各自完成特定的功能,并相互协作以使直播服务器系统作为整体提供适应性的视频传输服务。对各功能模块之间的协作和互动关系作了详细的阐述。提出的框架体系可以根据应用需求进行灵活配置以得到适当的实现形式,对开发直播系统具有参考价值。     

Module size: A standard or heuristic?

Current and proposed national software development specifications include module size limits in the form of an upper bound per module and an average for a group of modules. This paper claims that commonly specified limits such as 200 executable source statements have little practical value for programmers, and that the limits have not been validated. Module size guidelines based on corresponding complexity are derived for identifying extremly long modules, and are recommended for use by software quality engineers in monitoring development methodologies and by test engineers during preacceptance testing. Finally, research to derive a lower bound guideline for module size is recommended.