我国联机编目工作中的问题与对策   总被引：8，自引：0，他引：8  

方威明 《情报理论与实践》2004,27(1):93-95

我国联机编目网络正不断扩大，成员馆数量日益增多。本文结合我国开展联机编目工作的现状，着重分析了现阶段在开展联机编目过程中的5个难点问题，并有针对性地提出了理论上可行的解决方案，以求指导联机编目实际工作的进一步开展，并逐步走向稳定成熟。  相似文献   

基于视觉传感与图像处理技术的焊接过程控制技术   总被引：1，自引：0，他引：1  

刘立英 《中国科技信息》2007,(19):79-80

随着视觉传感、图像处理和人工智能等技术的发展,计算机视觉以其信息量大、精度高、通用性好、检测范围大等特点,在焊接领域得到了广泛的应用。本文简要地介绍了目前的计算机视觉技术和方法,综述了该技术在焊接过程控制中的典型应用。  相似文献   

Word classification and hierarchy using co-occurrence word information     

Kazuhiro Morita  El-Sayed Atlam  Masao Fuketra  Kazuhiko Tsuda  Masaki Oono  Jun-ichi Aoe 《Information processing & management》2004,40(6):9325

By the development of the computer in recent years, calculating a complex advanced processing at high speed has become possible. Moreover, a lot of linguistic knowledge is used in the natural language processing (NLP) system for improving the system. Therefore, the necessity of co-occurrence word information in the natural language processing system increases further and various researches using co-occurrence word information are done. Moreover, in the natural language processing, dictionary is necessary and indispensable because the ability of the entire system is controlled by the amount and the quality of the dictionary. In this paper, the importance of co-occurrence word information in the natural language processing system was described. The classification technique of the co-occurrence word (receiving word) and the co-occurrence frequency was described and the classified group was expressed hierarchically. Moreover, this paper proposes a technique for an automatic construction system and a complete thesaurus. Experimental test operation of this system and effectiveness of the proposal technique is verified.  相似文献   

基于底数可变特性的模幂乘算法     

谢琪 《科技通报》2003,19(3):192-195

根据快速计算a^2^5以及二进制冗余数的特点，结合模n和可变底数n，对指数m动态的取最优的幂后进行模幂乘运算，其乘法运算次数的上界为1．414L(其中L=└log2^m┘ 1)，接近理论最优值．  相似文献   

数字图书馆与图像     

王启云 《情报科学》2002,20(5):503-505

本文从图像格式、图像加工与处理和图像检索技术三个方面论述数字图书馆与图像。  相似文献   

Next steps in implementing Kaput’s research programme     

Celia Hoyles  Richard Noss 《Educational Studies in Mathematics》2008,68(2):85-97

We explore some key constructs and research themes initiated by Jim Kaput, and attempt to illuminate them further with reference to our own research. These ‘design principles’ focus on the evolution of digital representations since the early 1990s, and we attempt to take forward our collective understanding of the cognitive and cultural affordances they offer. There are two main organising ideas for the paper. The first centres around Kaput’s notion of outsourcing of processing power, and explores the implications of this for mathematical learning. We argue that a key component for design is to create visible, transparent views of outsourcing, a transparency without which there may be as many pitfalls as opportunities for mathematical learning. The second organising idea is Kaput’s notion of communication and the importance of designing for communication in ways that recognise the mutual influence of tools for communication and for mathematical expression.  相似文献   

初中物理学习特点及复习课堂教学策略     

李悦  张勇 《天津教育》2021,(5):158-159

在初中阶段,物理学科相对于其他学科而言学习难度稍大,学生需要一些逻辑思维才能更好地掌握物理知识点,因此课堂教学效率并不理想。为了促使学生在中考中取得满意的成绩,笔者认真分析了学生学习物理知识的特点,并针对此特点提出了一些引导学生高效复习物理知识的课堂教学策略。  相似文献   

The Relationship between Instructional Behaviour and Information Processing of Student Teachers: A Hong Kong Study     

Ora Kwo 《Asia Pacific Journal of Education》1994,14(1):13-28

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图像处理系统在基础医学教学中的应用及发展探讨     

周洪军  周洪斌 《实验室研究与探索》2004,23(12):49-50

本文介绍了图像处理系统的发展及功能，利用系统的静态图像捕捉、测量与分析、动态微循环测量分析等功能，丰富了医学教学方式方法，在科研中也具有广阔的应用前景。  相似文献   

《西清诗话》考论     

张海鸥 《河北师范大学学报(哲学社会科学版)》2006,29(1):109-115

蔡絛撰<西清诗话>甫成即遭政敌弹劾落职,此事误导后人对<西清诗话>发生了一些误解,一直被简单化为独尊元祐学术,实乃自宋迄今之误会.此书为蔡絛待制徽猷阁时自撰,其内容无关政治,唯载唐宋名贤诗话诗事,并非"独崇元祐之学".其论诗首重情致,论诗人颇具见识,所载诗事富有史料价值.蔡絛又有<百衲诗评>一篇,以唐宋14位诗人为生平宗师,持论公允.  相似文献