Integrating Heterogeneous Data Sources with Temporal Constraints Using Wrappers
نویسنده
چکیده
منابع مشابه
A New Approach to Integrate Heterogeneous Databases: The Mediated Data Integration Architecture
Information required for decision making is generally scattered across disparate data sources. To gain competitive advantage, it is extremely important for executives to be able to obtain one unique view of information in an accurate and timely manner. The heterogeneities occur when integrating such data sources which were designed independently. MeDInt – the Mediated Data Integration architect...
متن کاملSecure Interoperation of Heterogeneous Systems: a Mediator-based Approach
This paper addresses the problem of ensuring protection in the interoperation of heterogeneous data sources. We present a system that allows data sources enforcing mandatory multilevel policies to interoperate and make their data available to external applications still maintaining autonomy and security. Sources can be het-erogenous with respect to both the data model and the security lattices ...
متن کاملSemi-Automatic Wrapper Generation for Internet Information Sources
To simplify the task of obtaining information from the vast number of information sources that are available on the World Wide Web (WWW), we are building tools to build information mediators for extracting and integrating data from multiple Web sources. In a mediator based approach, wrappers are built around individual information sources, that provide translation between the mediator query lan...
متن کاملDeclarative Speciication of Z39.50 Wrappers Using Description Logics
Z is a client server protocol widely used in digital libraries and museums for search ing and retrieving information spread over a number of heterogeneous sources To overcome semantic and schematic discrepancies among the various data sources the protocol relies on a world view of information as a at list of elds called Access Points AP One of the major issues for building Z wrappers is to map ...
متن کاملDeclarative Speci cation of Z39.50 Wrappers using Description Logics
Z39.50 is a client/server protocol widely used in digital libraries and museums for searching and retrieving information spread over a number of heterogeneous sources. To overcome semantic and schematic discrepancies among the various data sources the protocol relies on a world view of information as a at list of elds, called Access Points (AP). One of the major issues for building Z39.50 wrapp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003