Recently, with the rapid development of medical imaging technologies such as CT,MRI, and so on, a large amount of medical information has been produced for the pastfew years. The traditional mode of film storage not only in time and cost, but also instorage and management has not met the requirements for the development of imagetechnology
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Recently, with the rapid development of medical imaging technologies such as CT,MRI, and so on, a large amount of medical information has been produced for the pastfew years. The traditional mode of film storage not only in time and cost, but also instorage and management has not met the requirements for the development of imagetechnology
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Recently, with the development of Internet, resource sharing is getting more and more closer to our life. Because of some reasons, the data of resource is storing in different database management systems and every DBMS become a”isolated island”of resource. How to eliminate the heterogeneity of heterogeneous databases and make them organically linked to each other,
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With the development of information technology, a variety of management information system has been in the community has been widely applied, and have achieved good results. Equipment by university management practices, management information systems not only improve the efficiency of device management, but also makes the equipment in this sector to be a reasonable allocation.
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In recent years, with the rapid development of Internet information industry, the amount of data showing explosive growth of database technology has been widely used, but because of the choice of data processing systems is the existence of various differences, making the data sources vary widely, forming a large heterogeneous database environment, how to share
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With the development of information technology, management information system has been widespread application, and in the practical application and achieved good results in the face of the practice of equipment management, management information systems not only improve the efficiency of equipment management, while making Equipment in a reasonable allocation of the sector. But most universities
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With the rapid growth of information and Internet technologies, a huge amount of data is dispersed in many heterogeneous databases. While the “Information isolated island” problem and Deep web search needs a unified interface for retrieving the heterogeneous databases transparently. On the other hand, ontology can be used as an global concept model in database
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With the development of information technology, many libraries to strengthen the construction of information resources through the purchase of autonomy, self-built databases and other means, and the construction of the introduction of a variety of database resources, in particular by the Ministry of Culture Ministry of Finance and the implementation of the National Cultural Information
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The accomplishment of data sharing makes much more people can use data source sufficiently, reduce rehanding and corresponding cost such as data acquisition, data gathering and so on. But, in the process of sharing data in practice, due to the heterogeneity of hardware, OS, network protocols, database types, semantic representations between database systems where the
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With the development of database technology and high frequency of information exchange between industries, demands of data sharing between different types of databases become increasingly prominent. Traditional transformation tools for transforming data between heterogeneous databases have not adequately address the complex types of heterogeneous databases to exchange information, so using the new XML technology, The
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