基于知识组织的中国科学院学位论文应用系统的设计框架     

李军莲  王昉  张桂英  常春  王莉  倪静 《现代图书情报技术》2006,1(12):16-20

主要介绍基于知识组织的“中国科学院学位论文应用系统”的设计与实现，通过构建学位论文的实用分类体系，主要完成了系统的功能分析和用户界面设计，并提出了系统可行性实施方案。  相似文献   

Construction of query concepts based on feature clustering of documents     

Youjin Chang  Minkoo Kim  Vijay V. Raghavan 《Information Retrieval》2006,9(3):231-248

In Information Retrieval, since it is hard to identify users’ information needs, many approaches have been tried to solve this problem by expanding initial queries and reweighting the terms in the expanded queries using users’ relevance judgments. Although relevance feedback is most effective when relevance information about retrieved documents is provided by users, it is not always available. Another solution is to use correlated terms for query expansion. The main problem with this approach is how to construct the term-term correlations that can be used effectively to improve retrieval performance. In this study, we try to construct query concepts that denote users’ information needs from a document space, rather than to reformulate initial queries using the term correlations and/or users’ relevance feedback. To form query concepts, we extract features from each document, and then cluster the features into primitive concepts that are then used to form query concepts. Experiments are performed on the Associated Press (AP) dataset taken from the TREC collection. The experimental evaluation shows that our proposed framework called QCM (Query Concept Method) outperforms baseline probabilistic retrieval model on TREC retrieval.  相似文献   

Google应用技巧   总被引：5，自引：0，他引：5  

常春 《现代图书情报技术》2004,20(6):53-55

文章详细分析了网络搜索引擎Google 的功能特征, 讨论了在使用中存在的一些现象和问题。通过具体例证说明: 在进行组合查询时, 要对所有的查询词分别加引号; Google 在对中文繁简字体语义转换时, 有可能出现明显的错误; 搜索到的数据在同一范围内、在以小时为单位内也会出现巨大的变化; 以及在不同范围内, 搜索同一信息时, 随时间的不同, 搜索到的结果会有不同的排序。  相似文献   

高校图书馆开展"阅读治疗"的实践与思考   总被引：22，自引：0，他引：22  

邓昶  杨志  刘建伟 《图书馆论坛》2004,24(1):42-44

依据阅读治疗的原理以及对当代大学生心理健康状况的分析，阐述了高校图书馆开展阅读治疗的意义，并对其阅读治疗的实施进行了研究和探讨。  相似文献   

Books are silent ambassadors: The Noma award for the translation of Japanese literature     

Toyo Yoshizaki 《Publishing Research Quarterly》2004,19(4):31-36

Summary Now more than ever good translations are proving to be vitally important to fulfilling Shoichi Noma’s mission of advancing good relationships between cultures. With the emergence of dozens of world-class Japanese writers, the translators of Japanese literature have acquired a new significance and a new importance. No longer are they required to simply handle the language like an exotic and precious commodity but they must prepare a writer’s work to compete with literature from around the globe and let others understand the issues at their very heart of the Japanese people. Indeed, the selection committee’s choice of Murakami’s Wind-Up Bird Chronicle is an apt example of how literature at its very best can span cultural divides to promote mutual understanding of very complicated and important world issues. Written for Japanese to help them understand the devastation of war, it is a rare and timely book that confronts Japan’s experience head on. Ironically, Noma’s idea that books are silent ambassadors, an idea born from agony and defeat, so many years later is helping the world come together towards a unified vision of peace and understanding. “Literature has been described as a means of exchange between the hearts of people. Literary translation, then, is the building of bridges so that all peoples of the world can interact in this way.” Ye Weiqu, Chinese Institute of Social Studies.  相似文献   

Book reviews     

Roy Kaufman  Endre L. Beky  Zhumin Sun 《Publishing Research Quarterly》2004,20(1):93-96

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The Hispanic market for book publishing     

Sarah Alonso 《Publishing Research Quarterly》2005,21(3):46-76

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Analysis of Statistical Question Classification for Fact-Based Questions   总被引：1，自引：0，他引：1  

Donald Metzler  W. Bruce Croft 《Information Retrieval》2005,8(3):481-504

Question classification systems play an important role in question answering systems and can be used in a wide range of other domains. The goal of question classification is to accurately assign labels to questions based on expected answer type. Most approaches in the past have relied on matching questions against hand-crafted rules. However, rules require laborious effort to create and often suffer from being too specific. Statistical question classification methods overcome these issues by employing machine learning techniques. We empirically show that a statistical approach is robust and achieves good performance on three diverse data sets with little or no hand tuning. Furthermore, we examine the role different syntactic and semantic features have on performance. We find that semantic features tend to increase performance more than purely syntactic features. Finally, we analyze common causes of misclassification error and provide insight into ways they may be overcome.  相似文献   

基于信息融合的档案知识服务研究     

常大伟  温芳芳 《档案与建设》2018,(3):4-7

基于信息融合的档案知识服务,是借助信息融合的理念和技术,对档案信息资源、用户需求信息等进行综合处理与协同利用,推动档案信息资源在数据层面的关联和知识层面的重构,实现面向用户需求的档案知识发现和知识服务的过程.论文构建了由一个目标、两种资源、三个模块、四个环节构成的基于信息融合的档案知识服务框架,并从多源信息获取、信息综合处理、信息融合和档案知识服务方面,探讨了基于信息融合的档案知识服务实现流程.  相似文献   

The powerful image and the imagination of power: the ‘new visual turn’ of the CPC’s propaganda strategy since its 18th National Congress in 2012     

Jiang Chang  Hailong Ren 《亚洲交流杂志》2018,28(1):1-19

This paper adopts the academic tool of discourse analysis to examine the ‘new visual turn’ of the Communist Party of China’s propaganda work since the 18th CPC National Congress when Xi Jinping was inaugurated as the leader of Chinese Communists. A thorough review of the new visual means the Party uses for photojournalism, TV news, animated cartoons and online promotional videos points to three developments markedly different from traditional discursive strategies: a full embrace of Confucian ethics, articulation of the Internet-based popular culture and subcultures, and an effort to fortify Xi’s personal authority as a political idol. The paper concludes that the ‘new visual turn’ of CPC propaganda after the 18th Party Congress suggests that the Communist discourse has evolved to a new stage where sophisticated manipulation of sleek technological tools substantiates a rigorous, dynamic CPC discursive system more at ease with itself and more powerful than ever in shaping the mainstream political culture in China.  相似文献