广东省图书馆文献资源建设发展战略     

徐斌 《图书馆论坛》2006,26(3):137-139

广东省要建设成文化大省，必须建立广东省图书馆文献资源建设战略，广东省图书馆事业有许多优势，通过科学规划，精心组织，文献资源建设发展战略目标一定能够有计划分步骤顺利实现。  相似文献   

从招标文件撰写谈提高图书采购质量   总被引：3，自引：0，他引：3  

陈碧 《图书馆论坛》2006,26(4):156-157,223

根据法律法规的要求，探讨图书馆图书招标文件的撰写，以此为基础，论述了不断提高招标采购图书质量的若干措施。  相似文献   

口述历史在地方文献工作中的意义及实践   总被引：5，自引：1，他引：5  

金文坚 《图书馆论坛》2006,26(4):210-213

文章首先简要介绍现代口述历史的含义及其发展历程，阐述了口述历史对于地方文献工作的意义，并结合自己的工作实践探索开展口述历史工作的方法和需要注意的问题。  相似文献   

基于海洋生物认知的专项信息系统设计与实现     

王蕙 《现代图书情报技术》2006,1(5):86-88

根据图书馆拓宽专项服务业务，展开对海洋生物知识普及的需求，在研究海洋生物分类的基础上，应用数据库设计中概念设计和逻辑设计的理论基础和具体技术，提出了以海洋生物图像信息处理为主的系统组织方式，着重探讨了数据访问接口的相关技术及海洋生物图片检索的方法。  相似文献   

论网络环境下电子文献与纸质文献的共存关系     

丁夷  袁嘉秀 《晋图学刊》2005,(3):64-65,70

本文通过对电子文献与纸质文献的比较分析,论述了在网络环境下,电子文献将与纸质文献长期共存、优势互补、共同发展。  相似文献   

基于OKAPI的XML信息检索实现研究   总被引：3，自引：1，他引：3  

陆伟  夏立新 《中国图书馆学报》2006,32(4)

OKAPI能实现强大的自由文本检索与评价功能,但要实现基于XML的信息检索,却要做适当改造。改造时,一方面尽量不破坏原有系统的体系结构,又要能实现对XML文档的索引、查询和表示。为此,必须完成面向XML的文档预处理和索引、面向XML的文档检索及检索模型的选择。图3。公式3。参考文献10。  相似文献   

信息检索可视化基本问题研究   总被引：7，自引：0，他引：7  

张学福 《中国图书馆学报》2006,32(3)

信息检索可视化的基本问题有:信息检索模型、信息内容描述、可视化映射技术、可视化显示技术、全局映射与局部映射、实时可视化和人工参与的可视化等。可根据实际情况合理选择,可选择一种,也可把多种技术组合在一起。表1。参考文献21。  相似文献   

Archival Description, Information Retrieval, and the Construction of Thesauri in Israeli Archives     

Silvia Schenkolewski-Kroll  Assaf Tractinsky 《Archival Science》2006,6(1):69-107

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Multilingual modeling of cross-lingual spelling variants     

Krister Lindén 《Information Retrieval》2006,9(3):295-310

Technical term translations are important for cross-lingual information retrieval. In many languages, new technical terms have a common origin rendered with different spelling of the underlying sounds, also known as cross-lingual spelling variants (CLSV). To find the best CLSV in a text database index, we contribute a formulation of the problem in a probabilistic framework, and implement this with an instance of the general edit distance using weighted finite-state transducers. Some training data is required when estimating the costs for the general edit distance. We demonstrate that after some basic training our new multilingual model is robust and requires little or no adaptation for covering additional languages, as the model takes advantage of language independent transliteration patterns. We train the model with medical terms in seven languages and test it with terms from varied domains in six languages. Two test languages are not in the training data. Against a large text database index, we achieve 64–78 % precision at the point of 100% recall. This is a relative improvement of 22% on the simple edit distance.  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