“区域教育现代化”专题

2018年9月10日,我国新时代第一次全国教育大会的召开,吹响了向教育现代化全面进军的号角。全国各省市也纷纷行动起来,谋划区域教育现代化建设问题。2019年3月22日,浙江省召开全省教育大会,提...2017年国家自然科学基金面上项目“基于指数分析的高校县域办学决策模型研究”(71774090);; 2017年山东省“泰山学者工程专项经费”资助;; 江苏高校哲学社会科学研究重点项目“江苏省民办教育..

Research on Adaptive Pen-based User Interface

笔式用户界面是HCI领域重要的研究方向，是Post-WIMP用户界面时代的主要界面形态之一，其在思维捕捉或记录、概念设计、观点研讨和交流等领域已经有较好的应用。笔式用户界面在得到良好应用的同时，也存在着以下三个方面的挑战：(1)相比于图形用户界面而言，笔式用户界面具有交互的模糊性，离散交互和连续交互的混合性等交互特征，我们将笔式用户界面的这些交互特性称为笔式用户界面的交互复杂性，交互复杂性无疑增加了笔式用户界面的设计和实现的复杂度；(2)由于笔式交互基于纸笔隐喻，相比传统的键盘鼠标输入的图形用户界面具有更加自然高效的交互特性，这种自然高效的交互特性会使更多更广的用户使用笔式用户界面，这些用户之间的笔式输入习惯会存在差异，会自然的期望笔式用户界面能够较好的适应特定用户的个性化。(3)普适计算是二十一世纪的计算模式，在普适计算环境下，用户要求能够随时、随地根据任务的需要来访问和操作各种信息，而支持多种环境下的不同的笔式交互设备无疑便利了用户的需求，因此笔式交互是普适计算环境下重要的交互方式，普适计算下也同时要求笔式用户界面能够适应设备和环境的多样化的计算要求。综上所述，解决笔式用户界所面对的交互复杂性和用户、设备、环境的适应性需求将是笔式用户界面的重要研究方向之一。 本文在总结笔式用户界面的发展的情况下，分析了笔式用户界面面临的上述三个方面的挑战。在分析面临挑战的基础上，阐述了本文研究的动机，即用自适应的方法来解决上述笔式用户界面所面临的挑战，即将本文的工作定位在自适应笔式用户界面研究上。 本文在分析了自适应用户界面和笔式用户界面相关研究的基础上，先后从以下几个方面展开研究：(1)研究了什么样的笔手势是良好的笔手势，提出了意义性的笔手势及其分类，并通过定量实验评估的方法验证了意义性笔手势的易学易记特性，为设良好的笔手势提供了参考依据；(2)提出了用自适应的策略来解决手势在使用时适应用户个性化输入的问题；(3)提出了自适应的基于笔和语音的多通道交互技术，并在此基础上建立了一个自适应的多通道几何白板系统；(4)提出了实现笔式用户界面的交互框架，并且在此框架的基础上与实践相结合总结性地提出了自适应笔式用户界面的软件体系结构；(5)在自适应笔式软件体系结构的基础上，本文最后描述了自适应笔式用户界面的软件开发方法，并通过实例来说明该方法的具体应用；(6)最后本文基于上述研究实现了一个自适应的多通道几何白板应用和一个自适应的表单系统。综上所述，本文从不同的层次展开了对自适应笔式用户界面的研究。这些层次是：(1)用户研究层次；(2)相关技术及框架研究层次；(3)软件体系结构和开发方法层次；(4)应用原型。 在自适应笔式用户界面的研究中，我们从上述五个方面展开了研究工作，其中主要的创新点有： (1)意义性笔手势及其实验评估 提出了意义笔手势的定义、分类及其易记性优势的假设。并通过定量的评估实验验证假设。在文献调研和用户调查的基础上，提出与所代表的命令有形象性的，意义性连接的笔手势是设计良好的笔手势，称为意义性笔手势，并将意义性笔手势分成三类，即为：指示性笔手势、实物隐喻笔手势和文化约定笔手势。最后，我们通过一个定量实验，评估意义性笔手势在易学性上是否优于非意义性笔手势。 (2)自适应的笔手势界面框架 在笔式用户界面中，静态识别器不能解决如下问题：不同用户对同一命令手势的输入差异大于某一用户在输入不同手势时的差异。本文提出了自适应的笔手势界面框架来解决这种用户手势输入的个性化问题。 (3)自适应的基于笔和语音交互的多通道交互技术 在多通道用户界面中，自适应性能够更好的发挥多通道交互的优势，本文提出了自适应的基于笔和语音的多通道交互技术，阐述了该自适应多通道的交互框架，详细阐述了输入模块、融合模块和自适应模块。对多通道的输入，融合，自适应策略进行了详细描述。 (4)笔式用户界面的交互框架和自适应笔式用户界面的软件体系结构 针对笔式用户界面的交互复杂性，在相关研究的基础上，提出了基于层次状态机的交互框架。同时基于框架，面向笔式用户界面的多设备、多环境、多用户的应用需求，提出了自适应笔式用户界面的软件体系结构，为自适应笔式用户界面的设计和开发提供指导。 (5)自适应笔式用户界面的软件开发方法 在以人为中心的设计方法和极限编程XP的开发方法的基础上，和实践相结合，根据自适应笔式用户界面的特点，提出了自适应笔式用户界面开发的总体流程，该流程重点描述了笔式用户界面自适应性的需求分析、设计开发及评估。在自适应笔式用户界面软件体系结构和总体开发流程的基础上，提出了自适应笔式用户界面的设计和开发流程，用以指导自适应笔式用户界面的设计和开发。 (6)原型实例 本部分在上述研究的基础上，建立了两个原型应用，一个为自适应的多通道用应用，本部分详细描述了该应用的模块组成及其关系，特别针对自适应模块，描述了自适应的策略。另一个为自适应表单应用，详细描述了该表单应用的需求分析、设计和实现、评估。Pen-based user interface (Pen UI) is a primary style in Post-WIMP user interfaces as well as an important research direction in HCI. It is used in many application domains for its natural interaction. These domains include creative thinking, concept design and discussion etc. Although Pen UI has been applied successfully in applications, it faces three challenges, they are: (1)Compared to the traditional graphic user interface(GUI) ,pen-based interaction is not accurate and it’s the combination of concrete and continuous interaction that we call hybrid interaction, these complex characteristics make the design and implementation of Pen UI more difficult than GUI. (2) Pen UI is based on traditional paper and pen metaphor.Compared to traditional GUI which adopts mouse and keyboard interaction, the natural interation style of Pen UI can accommodate more users, but users input characteristics vary and users expect naturally that Pen UI should adapt to their personified interaction. (3)Ubiquitous computing is the 21 century computing trend. Users demand that they can access to services at any time everywhere, many pen-based devices that can be used in different kinds of environments will undoubtedly facilitate users’ requirements. So pen-based interaction will definitely be a main interaction in ubiquitous computing, and it is required that Pen UI should adapt to various devices and environments. In a word, solving the design and implementation of PenUI, and meeting the requirements that Pen UI should adapt to different users, different devices and different environments is one of the main research directions in PenUI. Based on the summary of the development of Pen UI, we analyse the challenges Pen UI meets. Based on these, we propose adopting adaptive method to cope with these challenges and do researches on the pen-based adaptive user interface. Base on the analysis of the researches on the adaptive user interface and Pen UI, we carry out research on the following five aspects, they are: (1) the research on the design of the pen gestures, we propose a concept called meaningful gestures and validate their advantages. (2) Proposing an online two-way adaptive pen gesture framework to cope with the problem of users’ pen gestures input diversity. (3) Proposing an adaptive strategy for multimodal applications. The strategy concentrates on improving the interpretation of input diversity of different uses in multimodal applications. We then implement a prototype according to the strategy. (4) Putting forward an interaction framework for implementing Pen UI and a software architecture on pen-based adaptive user interface. (5)Lastly based on the architecture of adaptive pen-based user interface and practice work we propose a systematic software development method for adaptive pen-based user interface. In a word, we carry out the research work in four hierarchical aspects, they are: (1) users’ aspect; (2) related technical aspect; (3) software architecture and software development method aspect; (4) application prototype aspect. We carry out the research on the adaptive pen-base user interface on the above four hierachical aspects. Major innovations are listed in the following. (1) We carry out the analysis of the related researches on pen gestures design and then survey some Pen UI users. We find that gestures that have meaningful relationships between pen gestures and corresponding command are easy to remember. We divide the meaningful gestures into three categorise. Then we carry out a controlled quantitive experiment to validate the hypothesis of the advantage of the meaningful pen gestures. (2) We propose an on-line adaptive pen gesture use interface framework. The traditional stationary pen gestures recognition engine can’t cope with the problem that the differences among users for the input of the same gesture are larger than the differences of the input of different gestures for the same user. The framework we proposed can accommodate the various users’ input. (3)An adaptive strategy for the pen and speech based multimodal applications was proposed. The adaptive interaction strategy was described and we focused on the descriptions of three moduls of the strategy: input module; fusion module; adaptive module. An adaptive multimodal goemtry application was implemented according to the above adaptive strategy. (4) Inaccureate and hybrid interaction make Pen UI difficult to build. We propose an interation framework based on hierarchical state machine. At the same time, facing the various requirements of different devices, users and environments, we propose a software architecture for adaptive pen-based user interface that supports the design and implementation of adaptive pen-based user interface. (5) We propose a software development method based on the related researches. We propose the overall flow of the development; describe the requirements, design and implementation and evaluation respectively. Under the guide of the overall flow we introduce guidelines and the flow of design and implementation. (6) We implement two adaptive applications; one is an adaptive multimodal geometry whiteboard application. The application concentrates on enlargening the interpretation capability of multimodal applications to accmodate different users’ personified multimodal interaction, the other is an adaptive pen-base form application which was also analysed, designed and implemented according to the software architecture and development method

a conceptual framework for developing adaptive pen-based user interface

笔式用户界面是一种重要的Post-WIMP(window icon menu pointer)界面,它给用户提供了自然的交互方式.然而,当前的笔式用户界面工具箱大多是面向单用户任务的,不能很好地支持协作应用场景.通过对笔式交互特征和协作环境功能需求的分析,设计并实现了一个工具箱CoPen Toolkit,用于支持协作笔式用户界面的开发.它提供了灵活的架构和可扩展的组件,支持笔迹描述、事件处理和网络协作等功能.基于CoPen Toolkit,构造了多个原型系统,实践表明,它能够很好地支持协作笔式用户界面的开发

research on the implicit interaction characteristic of post-wimp user interface

首先从认知心理学的角度对Post—WIMP界面下的隐式交互特征进行分析和描述。然后通过对传统界面的交互任务生成结构和Post—WIMP界面的交互任务生成结构进行比较,分析Post—WIMP界面交互任务的生成特点。根据这些特点提出了利用识别技术、上下文感知技术和用户修正技术(User Mediation)相结合的方法来支持Post—WIMP界面的隐式交互，并构造了Post—WIMP界面的交互任务生成框架。这些隐式交互特征的研究将为建立Post—WIMP界面软件框架和交互平台提供底层支持

research on on-line two-way adaptive pen gesture interface framework

提出一个在线双向适应的笔手势界面框架,该框架针对传统笔手势界面中静态手势识别器不能支持用户的个性化输入以及用户在笔手势界面中面临的手势记忆问题,提出了在线双向适应的策略:一方面系统能够适应用户(系统可以在线支持用户的个性化输入);另一方面用户可以学习系统(用户可以学习系统提供的某些笔手势).该框架包括5个部分:(1)双向适应笔手势输入解释模型;(2)双向适应笔手势输入解释流程;(3)上下文优先级定义;(4)纠错和模糊消解界面;(5)在线笔手势查询帮助系统.在该框架的指导下作者开发了一个原型系统并进行了对比实验评估.结果表明该框架在可用性上具有较大的优势

activity-centered personal information management

通过分析用户执行多任务的交互场景，基于活动理论，将任务、任务相关的信息以及任务间的关系统一纳入活动研究的框架，提出了以活动为中心的个人信息管理方式；从活动的静态结构、动态演变过程以及活动间的关系3个方面对活动进行建模；针对多活动场景中的用户交互和活动对象的内容提出了计算活动相关性的方法；并在此基础上。实现了以活动为中心的个人信息管理工具一一ACPIM(activity．centered personal information management)．评估结果显示：以活动为中心的个人信息管理有助于用户减轻认知和记忆负担，降低交互努力，从而提高工作效率

Screening of Strains Fermenting Ethanol with Bagasse Saccharification Mixture

利用纤维生物质生产生物燃料是解决当今世界能源和环境问题的重要途径.本研究从腐烂蔗渣、酒曲、酒糟等样品中分离到一批产乙醇菌株,通过高浓度乙醇选择性培养基筛选、TTC法复筛以及发酵乙醇能力分析,筛选得到一株发酵蔗渣糖化液能力较强的菌株.通过对菌落形态观察、电镜图片分析、18S rDNA基因序列分析,确定该菌株属于酿酒酵母属,命名为Saccharomyces cerevisiaeQ2-1.优化了S.cerevisiaeQ2-1发酵蔗渣糖化液产乙醇条件,当起始pH为5.5、发酵温度为30℃、糖化液中硫酸铵浓度为0.4%时,静置发酵60 h后,发酵率可达89.2%,蔗渣产乙醇率ω=13.6%.Several strains ferment ethanol using bagasse saccharification mixture were isolated from rotted bagasse and lees.The strain with highest ethanol yield was screened and identified as Saccharomyces cerevisiae Q2-1 by analysis of morphology and 18S rDNA sequences.The optimum conditions for ethanol production using bagasse saccharification mixture were obtained as: using 0.4 %(NH4)2SO4 as nitrogen source,fermentation temperature 30℃,pH 5.5,fermentation time 60 h.The maximum zymolysis ratio was achieved as 89.2% with an ethanol yield of 13.6%(by mass).福建省重点科技平台项目(2006H0091);; 国家基础科学人才培养基金(J0630649)资

a conceptual framework for developing adaptive pen-based user interface

提出了一个指导自适应笔式用户界面开发的概念框架CFAPUI(a conceptual framework for developing adaptive pen-based user interface).该框架详细描述了自适应笔式用户界面的软件体系结构,阐述了自适应笔式用户界面的软件体系结构中的各组成模块及其相互间的关系.同时,在体系结构的基础上提出自适应笔式用户界面开发时的具体过程步骤和方法,并通过一个笔式表单应用来说明该开发框架在指导自适应笔式用户界面开发中的具体应用