A study on modeling of human spatial behavior using multi-agent technique

This research follows the design and implementation of an agent-based modeling environment written in Java program language on AnyLogic simulation platform to facilitate observing the human spatial behaviors of electric taxis and passengers. The system is developed with a view to improve decision analysis and support for users or companies. In order to achieve the object of decision support for the user, we provide a graphic user interface (GUI) to support user making decision real time. User can simulate the real condition via GUI in our electric taxi DAR operation system to observe the simulation process and the result to help reasonable decision-making immediately. We validate our multi-agent simulation model with the electric taxi DAR operation system case study. Finally, according to the analysis result, we demonstrate that our multi-agent simulation model and GUI can help users or companies quickly make a quality and accurate decision to reduce the decision-making cost and time. In this condition, users or companies can strengthen their competitive advantage and response ability with the reduction of decision-making risk.     

: a toolset for creating customized interfaces for grid user communities

is a comprehensive set of tools for creating customized graphical user interfaces (GUIs). It draws from the concept of computing portals, which are here seen as interfaces to application-specific computing services for user communities. While was originally designed for the use in computational grids, it can be used in client/server environments as well.Compared to other GUI generators, is more versatile and more portable. It can be employed in many different application domains and on different target platforms. With , application experts (rather than computer scientists) are able to create their own individually tailored GUIs.     

Android应用程序GUI遍历的自动化方法

近来针对Android应用程序的基于GUI(图形用户界面)的分析和测试方法已经成为一个研究热点. 自动化技术和较高的GUI覆盖率可以提高大部分方法的效率和效果. 然而以前的工作并不能充分满足自动化和高GUI覆盖率的要求. 提出了一种在不需要程序源代码的情况下遍历Android应用程序GUI的自动化方法. 其主要思想是通过模拟用户的行为自动探测Android应用程序的GUI. 我们的工作主要解决了UI元素提取和处理、用户行为模拟、GUI遍历算法设计和模型构建三方面中的一些关键问题. 实验结果表明, 该方法能获得较高的GUI覆盖率可以有效遍历应用程序的GUI. 此外, 该方法也将有助于程序安全分析、GUI测试等其他研究.     

基于自适应光标的图形用户界面输入效率优化

提高图形用户界面(graphical user interface)的输入效率,是人机交互中的一项重要研究内容.已有的研究包括点击增强技术和自适应界面技术,前者改变光标的控制方式或呈现方式,后者改变界面上控件的位置布局,但两种技术都存在不足.通过分析界面操作,提出了图形用户界面输入效率的评价模型;然后,在此基础上提出一种人机交互效率优化技术:自适应光标.它以自适应的方式,有选择地对界面上用户可能访问的控件通过点击增强技术支持,实现快速访问.该方法既解决了以往的自适应界面技术因频繁调整控件布局而给用户带来额外认知成本的问题,也克服了点击增强技术仅适用于稀疏控件布局的限制.为了检验其可用性,在控件较多的Visual Studio上实现了自适应光标技术.实验结果表明,使用自适应光标技术可以将获取目标的时间缩短27.7％,显著提高了图形用户界面的输入效率.     

Reconfigurable simulator using graphical user interface (GUI) and object-oriented design for OFDM systems

In this paper, a design of a new object-oriented simulation environment and graphical user interface (GUI) for versatile orthogonal frequency division multiplexing (OFDM) systems is presented. This is achieved using high-level design, parallelism and usability for the simulation environment. GUI interface can serve as a learning/research tool for students or practiced professionals to investigate particular designs. It is evident that OFDM systems intended to be used in dynamic environments must be tested under various conditions in order to be designed for optimality. Hence, a simulation design is proposed coupling the GUI, parallelism, and high-level object-oriented design techniques to be beneficial to the researcher. A high-level design and GUI layouts of the proposed simulator is shown in details. Important OFDM parameters needed for reconfiguration of transmitter components, channel condition parameters, and receiver components are discussed. In addition, this paper provides a simple technique to implement simulation partitioning for increased parallel performance of reconfigurable object-oriented OFDM simulators. This simple technique applies to scenarios where there is disproportionate simulation duration between different OFDM configurations. It is shown to decrease total simulation time considerably.     

一种结合移动IP和SIP实现IP网络移动性管理的优化方案

本文提出了一种网络层和应用层相结合实现IP网络移动性管理的新方案。移动终端的固定IP地址作为数据传输的地址;当终端和所在子网使用的是不同的IP子网前缀时,使用转交地址形成隧道对数据进行收发;SIP地址作为用户帐号,是在应用层使用服务的地址,通过把它动态地和移动终端绑定来使用终端。方案中还提出了以SIP地址域的分级方式进行组织管理的用户数据库系统,定义了为子网中移动终端服务的区域代理。新方案能够对现役设备和协议改动较小的程度下,为下一代网络提供移动性管理。     

Structural planning and implementation of a microprocessor-based human-machine interface in a steam-explosion process application

In this paper, small-scale microprocessor-based human-machine interface (HMI) and programmable logic controller (PLC) standard software libraries are applied to plan, design, implement, and construct models for creating the modular application software. The graphical user interface (GUI) functions used in a specific biomass steam-explosion process, intended to be integrated with the PLC device for HMI, thereby providing excellent GUI-based supervision and control functions. Reviewing these specific case study results, we find that the major advantage is maximum system operating performance at minimum cost. Also, the GUI/HMI operation effectively provides user-friendly and reliable interactions. This GUI/HMI approach is a very cost-effective technique.     

一种手绘制导的移动应用界面测试方法

软件测试在提高移动应用的安全性和可靠性方面扮演着重要角色.然而,目前主流的移动应用界面测试技术存在着许多不足：人工编写脚本和录制回放技术需要消耗大量的人力成本,自动化测试在移动应用界面测试的应用场景上受到了诸多限制.针对这些问题,提出一种基于手绘制导的移动应用界面测试方法.该方法通过设计一种简单直观且具有较强表达能力的手绘语言来帮助测试者轻松表达其测试意图,测试者仅需在待测应用的界面图像上做简单绘制,就能生成对应的测试模型,并以此为基础生成界面测试所需的测试用例.以近年来在相关文献中已经用作移动应用界面测试的评估用例集为基准来评估该方法的测试效果.评估结果表明：在提供很少人力成本的条件下,手绘图形所表达的用户测试意图在制导移动应用界面测试上能起到非常关键的作用.     

Ting tools: interactive and procedural modeling of Chinese ting

We propose an interactive and procedural approach to developing a tool for modeling Chinese tings, a featured Chinese architecture. The procedural approach models a detailed 3D Chinese ting model efficiently. The movement of control-point with user guidance and interaction-clue provides a user-friendly GUI for intuitively constructing variant tings flexibly. Also, the summarized scale proportional relationships between parameters used in ting architecture makes the user’s interaction simple yet powerful. The user studies and the experimental results show that nonprofessional users can intuitively construct a variant of complex, novel Chinese tings within minutes.     

Ontology-Based User Modeling in an Augmented Audio Reality System for Museums

Ubiquitous computing is a challenging area that allows us to further our understanding and techniques of context-aware and adaptive systems. Among the challenges is the general problem of capturing the larger context in interaction from the perspective of user modeling and human–computer interaction (HCI). The imperative to address this issue is great considering the emergence of ubiquitous and mobile computing environments. This paper provides an account of our addressing the specific problem of supporting functionality as well as the experience design issues related to museum visits through user modeling in combination with an audio augmented reality and tangible user interface system. This paper details our deployment and evaluation of ec(h)o – an augmented audio reality system for museums. We explore the possibility of supporting a context-aware adaptive system by linking environment, interaction objects and users at an abstract semantic level instead of at the content level. From the user modeling perspective ec(h)o is a knowledge-based recommender system. In this paper we present our findings from user testing and how our approach works well with an audio and tangible user interface within a ubiquitous computing system. We conclude by showing where further research is needed.     

基于B/S开发模式的树型GUI设计与实现

图形用户界面也即图形化的人机界面，是软件最终向用户表现的接口。良好的用户界面对于软件产品意义重大，新的用户界面方案的出现甚至会推动软件走向一个崭新的领域。该文简要介绍了图形用户界面发展的情况，界面设计的原则，进而详细地设计并实现了可在B／S开发中应用的一个树型交叉式GUI元控件；最后给出了一个应用实例。     

一种融合信任和用户情感偏好的协同过滤算法

以调节用户情感为应用背景,为使资源满足用户情感需求,提出一种融合信任和用户情感偏好的协同过滤算法.首先,针对现有协同过滤中用户偏好模型扩展性不足的问题,提出融合评分和信任的用户偏好模型,依据评分数据集设定共同评分资源数目的阈值,有策略地选择用户间评分相似度和信任值,计算用户偏好程度;其次,定制资源的情感内涵特征,在资源集合生成过程中,通过引入用户对资源情感内涵的偏好度量机制,弥补了以往协同过滤推荐对用户情感的忽略.最后,实验结果表明,该算法有效地解决了协同过滤中用户偏好模型扩展性不足的问题,提高了分类准确度,增加了用户选中满意资源的机会.     

The Design and Implementation of a Cooperative Design-view Environment for Interactive Partitioning Applications

This paper presents a cooperative design-view environment for interactive partitioning applications. This environment provides the user with a comprehensive viewing facility that describes the potentially complex relationships between various design objects. Using this environment, the user is able to evaluate and analyse design results visually throughout the entire partitioning process. We have developed a graphical user interface (GUI) environment for the InterPar system which supports mixed automatic and manual partitioning for multiple-field programmable gate array (FPGA) designs. The preliminary experiments have shown that the use of InterPar may lead to a new direction for the exploration of new partitioning approaches based on the circuit-structure analysis.     

Matlab GUI在光学实验仿真中的应用

在光学拍理论的基础上,利用Matlab图形用户界面的设计与开发功能,制作了简洁美观、可拓展性强的光学拍实验仿真平台.结果显示,该平台具有人机界面友好、操作简单、参数可调、速度快、可移植性强等优点,为教学和研究工作开辟了新的途径.     

Empirical analysis of GUI programming concerns

The focus of this paper is on identification of typical graphical user interface (GUI) programming concerns. As opposed to some other proposals available in the literature that indicate GUI programming concerns by simple intuition, we have conducted a systematic empirical analysis to derive our proposal. It included an analysis of an existing application programming interface (API), its use in industrial projects, and an analysis of the requirements and issues reported during software maintenance. In addition, we have evaluated more than 50 GUI frameworks and APIs and proved usefulness and generality of our classification of concerns. As an additional proof of applicability of the proposed classification, we have refactored the inheritance hierarchy of the selected GUI API using concern-oriented interfaces. We have implemented a supporting tool that complements the developed API and supports its concern-oriented use. The evaluation of the refactored API showed positive effects on API usability.     

基于节点重要度的用户推荐

为用户推荐具有相同兴趣的好友是用户关系的研究热点之一,但面临着数据稀疏性、兴趣推荐偏差等问题。针对这些问题,本文提出一种考虑节点重要度的用户推荐方法。首先结合共现及凝聚方法实现标签聚类,据此划分具有相似兴趣的用户社群。然后通过社会网络分析构建社群的用户关系网络,采用PageRank计算用户重要度指标用于评价用户的推荐能力,并描述了用户推荐算法流程。最后通过在真实数据集上与传统方法的对比实验,验证了模型的有效性,给出了表示用户亲疏关系的可视化结果。     

Seamless User-Level Handoff in Ubiquitous Multimedia Service Delivery

Advancing mobile computing technologies are enabling ubiquitous personal computing environment. In this paper, we focus on an important problem in such environment: user mobility. In the case of user mobility, a user is free to access his/her personalized service at anytime, anywhere, through any possible mobile/fixed devices. Providing mobility support in this scenario poses a series of challenges. The most essential problem is to preserve the user's access to the same service despite changes of the accessing host or service provider. Existing system-level mobility solutions are insufficient to address this issue since it is not aware of the application semantics. On the other hand, making each application to be mobility-aware will greatly increase the development overhead. We argue that the middleware layer is the best place to address this problem. On one hand, it is aware of application semantics. On the other hand, by building application-neutral mobility functions in the middleware layer, we eliminate the need to make each application mobility-aware. In this paper, we design a middleware framework to support user mobility in the ubiquitous computing environment. Its major mobility functions include user-level handoff management and service instantiation across heterogeneous computing platforms. We validate the major mobility functions using our prototype middleware system, and test them on two multimedia applications (Mobile Video Player and Mobile Audio Player). To maximally approximate the real-world user-mobility scenario, we have conducted experiments on a variety of computing platforms and communication paradigms, ranging from T1-connected high-end PC to handheld devices with wireless networks. The results show that our middleware framework is able to provide efficient user mobility support in the heterogeneous computing environment.