Recognition of hand-printed Chinese characters using decision trees/machine learning C4.5 system

Recognition of Chinese characters has been an area of major interest for many years, and a large number of research papers and reports have already been published in this area. There are several major problems with Chinese character recognition: Chinese characters are distinct and ideographic, the character size is very large and a lot of structurally similar characters exist in the character set. Thus, classification criteria are difficult to generate. This paper presents a new technique for the recognition of hand-printed Chinese characters using the C4.5 machine learning system. Conventional methods have relied on hand-constructed dictionaries which are tedious to construct and difficult to make tolerant to variation in writing styles. The paper discusses Chinese character recognition using theHough transform for feature extraction and C4.5 system. The system was tested with 900 characters written by different writers from poor to acceptable quality (each character has 40 samples) and the rate of recognition obtained was 84%.     

自主学习型多媒体课件的设计

本文针对《几何画扳制作课件培训软件》多媒体课件的设计开发,提出利用合适的教与学理论指导教学设计,并通过恰当的技术将学习内容展示给学习者,使得学习者能够主动参与到学习过程中,同时还可以对相关的技能及时进行实践加以掌握。经过这样的学习过程学习者不但学到了知识,还能够运用其解决实际问题。     

汉字在海报中的三种形态

中国源远流长的灿烂文化不断传承与发展,其媒介的主体应为汉字。海报这种满足人们精神和物质需求的艺术作品,必然被赋予深刻的文化特质,传播明确的观念和消息是海报设计功能的核心,其本身必然承载着文化内涵和世情物理。而汉字作为文明的载体,在海报设计中自然有着举足轻重的作用。不同的字体形态在海报设计有着不同的效应,呈现出独特新颖的表达、传递着动人心目的信息。     

学习层级说在教学设计中的应用

本文以笔者多年教学经验为基础,结合美国当代教育心理学家加涅的教学理论和学习层级说,探讨该教学理论在教学设计中的具体应用。     

汉语音节→汉字转换中的动态语境学习

本文从语言使用的局部性原理出发，引入动态语境网的概念，提出了在汉语音节→汉字转换中的动态语境学习方法，有效地提高了音节汉字的转换正确率。     

对《中国艺术设计史》教学的思考与探索

当设计实践日益凸显出从传统文化中探寻民族设计元素之时,如何在艺术设计专业实施《中国艺术设计史》教学值得深思。本文从教学实践与教学研究的角度,提出了教学研究推动课堂教学,课堂教学与当代设计实践、市场考察相结合的教学思路,激发了学生的学习兴趣,收到良好了教学效果。     

Evaluation of incremental learning algorithms for HMM in the recognition of alphanumeric characters

We present an evaluation of incremental learning algorithms for the estimation of hidden Markov model (HMM) parameters. The main goal is to investigate incremental learning algorithms that can provide as good performances as traditional batch learning techniques, but incorporating the advantages of incremental learning for designing complex pattern recognition systems. Experiments on handwritten characters have shown that a proposed variant of the ensemble training algorithm, employing ensembles of HMMs, can lead to very promising performances. Furthermore, the use of a validation dataset demonstrated that it is possible to reach better performances than the ones presented by batch learning.     

后疫情时代线上线下混合式学习的教学实践研究

在后疫情时代背景下,开展线上线下混合式学习已成为教育教学改革的必然趋势,其目的不是提高在线平台的利用率,也不是去开展争奇斗艳的教学活动,而是有效提升绝大部分学生学习的深度和广度。本文通过分析传统学习模式和线上线下混合式学习模式的优缺点,针对当下《图形图像制作》课程的教学现状,提出将线上学习和传统学习相结合,建构起线上线下混合式学习新模式,有利于改善混合式教学实施的效果。     

文本压缩的实现原理及方法

无论是在存储设备中存储文件,还是用因特网传输文件,经常会用到一些压缩算法来节省空间,提高传输速度。文中利用聚焦最有效的压缩算法Huffman编码,并用Java来实现这个过程。     

Developing an efficient computational method that estimates the ability of students in a Web-based learning environment

This paper presents a computational method that can efficiently estimate the ability of students from the log files of a Web-based learning environment capturing their problem solving processes. The computational method developed in this study approximates the posterior distribution of the student’s ability obtained from the conventional Bayes Modal Estimation (BME) approach to a simple Gaussian function in order to reduce the amount of computations required in the subsequent ability update processes. To verify the correctness and usefulness of this method, the abilities of 407 college students who solved 61 physics problems in a Web-based learning environment were estimated from the log files of the learning environment. The reduced chi-squared statistic and Pearson’s chi-square test for the goodness of fit indicate that the estimated abilities were able to successfully explain the observed problem solving performance of students within error. The educational implications of estimating the ability of students in Web-based learning environments were also discussed.     

民间工艺对中国艺术设计史研究的意义

中国艺术设计史研究是对于中国造物行为中设计思维的仔细梳理与深度探索,中国传统造物的纷杂景观形成了设计学科框架建立的复杂性,造物行为的平民性也导致了中国艺术设计史研究的宽泛性,对于传统民间工艺的新型探究对中国艺术设计学科的确立与发展有着重要的当代意义。     

从“窗”元素看中西方设计美学差异

在建筑装饰文化史上,窗蕴含着博大精深的文化意味。在中西文化差异面前,无论是窗的材料、结构或是意蕴都存在着明显的差异,本文试图从材料、结构、文化意蕴等角度探寻中外古典建筑中"窗"的设计艺术和造型装饰规律。以"窗"元素角度为出发点,探索传统文化以及中西方设计美学的差异性。     

中国书画的美学精神在现代书籍装帧中的运用

中国书画历史悠久,有着丰富的美学内涵。中国书画的美学精神在现代书籍装帧中得到了创造性运用,主要体现在三个方面:注重整体,美在和谐;计白当黑,追求简约;形意兼备,气韵天成。中国书画中的美学精神,在现代书籍装帧中得到了巧妙的贯彻,在装饰书籍、提高读者阅读兴趣的同时,融民族特色与现代精神于一炉,将中国传统的美学精神发扬光大。     

CLPL: Providing software infrastructure for the systematic and effective construction of complex collaborative learning systems

Over the last decade, e-Learning and in particular Computer-Supported Collaborative Learning (CSCL) needs have been evolving accordingly with more and more demanding pedagogical and technological requirements. As a result, high customization and flexibility are a must in this context, meaning that collaborative learning practices need to be continuously adapted, adjusted, and personalized to each specific target learning group. These very demanding needs of the CSCL domain represent a great challenge for the research community on software development to satisfy.This contribution presents and evaluates a previous research effort in the form of a generic software infrastructure called Collaborative Learning Purpose Library (CLPL) with the aim of meeting the current and demanding needs found in the CSCL domain. To this end, we experiment with the CLPL in order to offer an advanced reuse-based service-oriented software engineering methodology for developing CSCL applications in an effective and timely fashion. A validation process is provided by reporting on the use of the CLPL platform as the primary resource for the Master's thesis courses at the Open University of Catalonia when developing complex software applications in the CSCL domain.The ultimate aim of the whole research is to yield effective CSCL software systems capable of supporting and enhancing the current on-line collaborative learning practices.     

设计排版里中英文字体的使用研究

在设计上,尤其是平面设计和排版里,文字的设计,运用和排列是视觉传达的重要组成部分,运用中文字体和运用英文字体所产生的效果有明显的不同。当然首先要说明一下的是,任何一种语言和文字在其本质上都是平等的,没有贵贱之分,这里所讨论的只是把文字看作设计中的一种元素运用于平面设计和排版之中,从而在视觉上给人产生的不同感受。对于大多数搞设计的人员来说,在总体上,中文字体的排版效果比英文字体来得逊色一点。因为在设计排版中,字体并非仅仅是作为传达文本意义的符号而存在,字体也同时参与到视觉传达与视觉享受的过程中去了。在平面设计中作为基本概念的"点、线、面"三要素,在字体的运用和排版上同样存在。单个的汉字和由字母组成的单个英文单词,作为单独的点元素来说,已经有太大的差别;当他们分别组成了一行文字构成了线元素之后,差别进一步扩大;而当一行行的文字组成了整排的文章形成了面元素之后,在人们视觉中产生的差别就可想而知了。在对中英文字体做了比较和分析,了解了两者的差别和特点之后,作为中国设计师,就要想办法从多种角度出发,运用多种办法来尽可能的提高中文字体在平面设计中的观赏性。     

浅议现代平面设计中对中国画意境的借鉴与运用

文章从中国画意境角度入手,对中国画深厚哲学思想,灵活多样的空间布局,随类赋彩的笔墨情趣,曲直多变的线条语言在现代平面设计中的灵活运用进行简述,挖掘适合现代人审美情趣,又对设计语言具有非凡意义的中国式平面设计元素,以此赋予现代平面设计以深厚的文化底蕴和丰富的内涵。     

创新推动设计——论创新教育在陶瓷艺术设计教育中的地位

众所周知陶瓷在中国的发展历史悠久,无论技术还是艺术都取得了举世瞩目的成就。自原始社会至封建社会几千年的发展过程中,陶瓷生产与教育一直沿袭着师傅带徒弟或者父子相传的家庭作坊式的传承方式在进行着,当然这是由当时的社会体制决定的。陶瓷艺术的发展离不开陶瓷人才的培养,这就是说我们如何让陶瓷艺术设计教育做到科学性、系统性与时代性的完美结合,建立适合当今世界发展且带有中国特色的陶瓷艺术教育方式。     

Programming assistance tools to support the learning of IT programming in South African secondary schools

Novice programmers struggle to understand introductory programming concepts and this difficulty, associated with learning to program, contributes mainly to the lack of interest in the field of Computer Science at tertiary level. Programming assistance tools have been used to assist novice programmers extensively at education institutions. A programming assistance tool (PAT) is a software program that can be used by novice programmers to learn how to program and/or improve their understanding of programming concepts.This research proposes that novice programmers, specifically Information Technology (IT) scholars in South African secondary schools, could be supported by PATs. The main objective of this research was to determine whether the use of a PAT impacted IT scholars' understanding of programming concepts and their motivation towards programming in general. Criteria for the selection of PATs were derived from the programming difficulties identified in literature and from surveys to IT teachers and scholars. The selection criteria were grouped into programming knowledge and programming skills categories. Existing PATs were evaluated using the selection criteria and three PATs, namely, RoboMind, Scratch and B#, were selected for evaluation in this research study. A convenience sample of schools participated in the study. The three PATs provided different approaches while being able to support the Delphi programming language used in schools that participated in the study.The findings of this research indicated that, although scholars perceived the PATs to be useful in the explanation of certain of the programming concepts, there was no conclusive evidence that IT scholars who used a PAT had a significantly better understanding of programming concepts and motivation towards programming than scholars who did not use a PAT. Participant feedback was used to identify the strengths and shortcomings of the three PATs and to provide recommendations for the development of future PATs specifically designed to support IT scholars.     

关于中国古代书籍翻阅中观赏形态的思考

本文以中国古代书籍形态的演变过程为切入点进行论述,通过对翻阅在中国古代书籍形态发展中的重要性的分析,提出"中国古代书籍在翻阅中具有独立艺术价值的观赏形态"的观点,从而进一步探讨中国古代书籍翻阅中观赏形态带给我们的人生启迪。当我们与之对话时,不仅是发现它的美,更应该细细品位、观赏这种容易被人忽视的翻阅过程,并在不断的翻阅中对其观赏形态进行新的思考。     

The Enriched UTAUT Model for the Acceptance of Software Engineering Tools in Academic Education

This article provides an enriched technology acceptance model explaining the impact of both classic and additional variables on software engineering tools acceptance within Information Systems Development courses. Two novel, domain-specific variables were identified (i.e., Professional Training Diffusion and Model Interchange). Statistical verification of the proposed model and study regarding the influence of the variables on students’ intention to use specific tools were conducted—providing users with enhanced means of selecting optimal software for real-life projects.