Design and experiments on a personal robotic assistant

The design and development of the 'personal robot, i.e. a robot capable of living together with and assisting human beings, is perhaps the main challenge for robotics research and technology in the third Millennium. One of the most intriguing issues in the design of such robot is the definition and implementation of adequate schemes for human-robot interaction. In fact, achieving this goal requires multidisciplinary efforts, and the integration of engineering analysis with psychological, anthropological, ethological and product design considerations. In this paper, the basic concepts to be followed in the design of human-robot interaction are discussed. with reference to a concrete example: the MOVAID personal robot for assistance to disabled and elderly people at home. The MOVAID system was designed taking into careful account as a primary design goal the need for interaction with the human user. A prototype of the MOVAID system has been developed and then successfully validated with disabled end-users. The results of these tests indicate that a personal robot is technically feasible, and is acceptable to users in terms of helpfulness, easiness of use and pleasure of interaction.     

自学型调度员培训模拟系统的设计方案

分析指出传统DTS面向自学培训的不足,给出了一套自学型DTS的设计方案,在分析对调度自学培训的应用需求的基础上,给出了系统结构设计.提出的方案通过模拟教员功能模块完成了自学型系统的闭环.采用自定义的评估规则,丰富和完善了DTS系统的评估功能.提出的方案灵活而实用,不仅可以指导自学型DTS系统的建设,同时对完善传统DTS...     

A User-Oriented Implementation of Risk Breakdown Structure in Construction Risk Management

The construction industry works under conditions of uncertainties and risks leading to poor performance, increased cost and time and decreased quality. In these conditions, the dynamic identification and assessment of project risks among a vary range of potential factors is considered of vital importance. The introduction of RBS （risk breakdown structure） as a hierarchically organized depiction of identified risks was considered a suitable tool in risk management, especially in construction, due to its many advantages in synthetic representation and dynamic nature. This paper presents a user-oriented implementation of RBS to assist the project managers in identifying and assessing potential risk factors affecting construction process. The evidential analogies between WBS （work breakdown structure） and RBS are captured and used in the proposed framework which interconnects them into a 2D （two dimensional） matrix used to associate risks to the specific project activities. The proposed framework is applied to a government funded design-bid-build project. The obtained results clearly demonstrate the advantages in identifying the most risky activities, as well as the most important risk factors affecting the whole project.     

面向用户需求的儿童玩具可用性研究

目的为满足用户多样化的需求,提高产品可用性,解决儿童产品可用性及产品评价问题,提出一种面向用户需求的产品可用性评价方法。方法将儿童产品用户需求分为外观需求、操作需求和感知需求,构建以感性意象词汇为基础的产品可用性多维层次指标模型,考虑儿童的认知心理、情感方式以及行为方式,通过层次判断矩阵求解并计算各个可用性感性指标重要度和优先次序。以此为依据开展儿童玩具的设计实践,通过目标用户群对设计案例进行可用性评价,了解儿童玩具产品的可用性情况,为儿童玩具产品的设计与改进提供指导。结论本方法能对产品可用性进行有效评价,发现其中存在的问题并加以改进。     

B/S应用系统中的细粒度权限管理模型①

针对B/S模式下的油库网络信息系统的实际需求,为提高用户权限管理的动态性和授权访问的安全性,结合基于角色的访问控制原理,提出了一种在B/S应用系统中针对用户人员复杂、职务变动频繁特点的细粒度权限管理模型。该模型把资源的访问权限按细粒度分解,实现了由粗到细,不同级别的权限控制,既可进行角色授权也可直接用户授权,大大改善了用户权限管理的灵活性和可扩展性。     

面向用户柔点的设计模型

为了提高软件适应需求变化的能力,设计出具有良好柔性的软件,提出了一种基于面向用户柔点的设计模型.给出面向用户柔点的概念和特征,指出柔点与需求变化的密切联系.在此基础上,通过归纳需求变化的分类,抽象出柔点的分类.利用MVC(模型-视图-控制器)框架和软件设计模式给出通用的柔点设计模型,根据柔点的分类将模型细化.通过一个网...     

Cursor momentum for fascination measurement

We present a very different cause of search engine user behaviors—fascination. It is generally identified as the initial effect of a product attribute on users’ interest and purchase intentions. Considering the fact that in most cases the cursor is driven directly by a hand to move via a mouse (or touchpad), we use the cursor movement as the critical feature to analyze the personal reaction against the fascinating search results. This paper provides a deep insight into the goal-directed cursor movement that occurs within a remarkably short period of time (<30 milliseconds), which is the interval between a user’s click-through and decision-making behaviors. Instead of the fundamentals, we focus on revealing the characteristics of the split-second cursor movement. Our empirical findings showed that a user may push or pull the mouse with a slightly greater strength when fascinated by a search result. As a result, the cursor slides toward the search result with an increased momentum. We model the momentum through a combination of translational and angular kinetic energy calculations. Based on Fitts’ law, we implement goal-directed cursor movement identification. Supported by the momentum, together with other physical features, we built different fascination-based search result reranking systems. Our experiments showed that goal-directed cursor momentum is an effective feature in detecting fascination. In particular, they show feasibility in both the personalized and cross-media cases. In addition, we detail the advantages and disadvantages of both click-through rate and cursor momentum for re-ranking search results.     

面向用户的柔点柔变范围定量度量技术

为了解决柔性软件柔点柔变范围度量准确性差和操作性低的问题,以面向用户的柔点为研究对象,提出了软件柔变性模型,建立了柔点变化传播影响图,改进了功能点分析法,给出了柔点柔变范围定量度量模型。在该度量模型中,以柔变部件作为基本度量实体,利用柔变性模型表示柔点、柔变点和柔变项,通过柔点变化传播影响图分析柔点变化传播影响,应用改进的功能点分析法提取软件柔点变化影响的柔变部件,进而计算所有柔变部件的功能点计数,确定柔点柔变范围的定量值。结合实例说明了柔点柔变范围的定量度量过程,分析了柔点柔变范围。     

逆编译中面向用户的中间语言设计和实现

逆编译系统中中间语言的设计和实现极大地影响逆编译的实用型和通用性 .文中介绍了一种结构简单、可读性强的中间语言 ,它既具有高级语言控制结构 ,又能对汇编语言数据类型进行规范 .用户可以通过阅读中间语言程序来分析、理解和消化软件 .该语言已在基于知识的逆编译系统中应用 .     

基于规则面向用户的动态视图的实现

PostgreSQL是一种对象关系型数据库管理系统.利用PostgreSQL的规则系统,实现了一种面向用户的动态视图建立的方法.该方法利用PostgreSQL的系统表、系统函数,通过创建视图的插入、更新、删除规则,动态的创建会话用户的视图.用户通过访问接口LIBPQ连接到数据库,授权访问和操作自己的视图.在数据库一级对用户数据进行了隔离.