基于规则的统计数据审核系统

文章针对统计数据审核要求，提出了一种基于规则的统计数据审核解决方法。介绍了统计审核规则的分类和表示方法，并给出了构造审核规则解释器的方案。     

渔船型线变换数据库系统的模式和算法设计

论文讨论了渔船型线数据库系统的总体设计方案,提出多维数据库存储模式,并用元数据的方法对型船数据及变换模型进行优选。给出AOV网表示型线变换关系的算法。     

数据仓库及联机分析处理

主要介绍数据仓库基本特征，体系，结构，ＣＬＤＳ设计方法，以及基于数据仓库ＯＬＡＰ的ＲＯＬＡＰ和ＭＯＬＡ两种方法。     

基于XML的敦煌图像数据存储的研究

提出了敦煌图像中文元数据标准方案，并在敦煌数字图书馆项目中建立了基于XML的图像数据存储系统，提出了一种利用DTD转换字典进行XML与关系数据库转换的方法。     

E T L综述

阐述了ETL在创建数据仓库过程中的重要地位；分析了整个ETL流程，把它分为数据源验证、数据源改造、一般性变换、装载目标表和数据聚合5个阶段。最后分析了ETL产品现状、现有ETL产品的功能特点，以及今后ETL产品的发展趋势。     

DM_OLAP元数据管理

元数据在数据仓库和联机分析处理中扮演着重要的角色。该文介绍了自主研制的DM_OLAP系统的元数据模型，包括其设计和CWM标准化.同时，提出了基于CWM模型的DM_OLAP元数据管理系统的设计。     

Semantic Web: A road to the knowledge infrastructure on the internet

In this article, I describe the basic technologies for Semantic Web and relationship between Semantic Web and Knowledge Representation in Artificial Intelligence. Semantic Web is planned as an extension of the current web in order to help cooperation between computers and humans, i.e., computers and humans are expected to understand each other in the knowledge level. I first describe the vision of the Semantic Web, then introduce the current Semantic Web technologies, i.e., RDF, RDFS, and OWL. I describe relationship between the trend of Semantic Web and Knowledge Representation, and clarify challenges and difficulties of Semantic Web from the point of view of Knowledge Representation. Hideaki Takeda: He is a professor at National Institute of Informatics (NII) and a professor in Department of Informatics at the Graduate University of Advanced Studies (Sokendai). He received his Ph.D. from the University of Tokyo in 1991. His research interest in computer science includes ontology engineering, community informatics and knowledge sharing systems.     

Emerging specializations,competences and firms' proximity in digital industries: The case of London

In order to overcome the limitations of defining industrial specializations in digital industries through SIC codes, this paper suggests measuring the specializations and competences of these industries on the basis of the degree of digital technologies present in the products and services supplied. Metadata from CrunchBase are employed, as proxies of firms' specializations and competences which are defined as the fields of activity in which firms are involved. Applying a network analysis, these specializations and competences are linked to the recognition of emerging digital technologies and the strongest combinations of products and services. We tested the proposed methodology on London, a leading centre for the digital economy.     

数字图书馆科技文献知识导航

提出了一种基于分类法和主题词表的科技文献知识导航体系,该体系支持分类法和主题词表知识导航、元数据结构查询和全文检索这三种检索手段以及他们的混合应用。从分类法主题词表的概念浏览和元数据查询的语义支持的角度来说,这是一个支持概念检索的知识导航体系。根据该体系,实现了“北京大学科技文献检索系统”实验数字图书馆。     

基于数据铸造新技术的肺癌生存率分析系统的设计与应用

生物信息学作为21世纪最有影响力的一个领域,已经取得了前所未有的进步。数据库是其成功发展的一个关键因素。然而,如何将多个数据源集成为一个单一,一致的数据仓库,并在其上建构多种解决某领域专业知识的强大数据挖掘方法,依然是个难题。文章采用一种基于数据铸造机制的数据仓库新技术,提出专门用于预测肺癌生存期的决策算法,进行肺癌生存率的分析,从而有效地采用新型数据挖掘系统解决肺癌生存率预测。