An Approach for Synergically Carrying out Intensional and Extensional Integration of Data Sources Having Different Formats
نویسندگان
چکیده
In this paper we propose a data source integration approach capable of uniformly handling different source formats, ranging from databases to XML documents and other semi-structured data. The proposed approach consists of two components, performing intensional and extensional integration, respectively; these are strictly coupled, since they use related models for representing intensional and extensional information and are synergic in their behaviour.
منابع مشابه
An approach for the extensional integration of data sources with heterogeneous representation formats
In this paper we propose an approach for the extensional integration of data sources with heterogeneous representation formats. The proposed approach is based on the exploitation of a new model, called E-SDR-Network, for representing and handling, at the extensional level, heterogeneous data sources, ranging from databases to XML documents, OEM graphs and other semi-structured data. Due to the ...
متن کاملA framework for abstracting data sources having heterogeneous representation formats
This paper deals with the issue of abstracting a data source characterized by one among several possible representation formats. First we show that data source abstraction plays a central role in several important application problems in the area of information system design. Then we propose a new approach which is capable of semi-automatically carrying out the abstraction of a data source poss...
متن کاملExtensional Knowledge for Semantic Query Optimization in a Mediator Based System
Query processing in global information systems integrating multiple heterogeneous sources is a challenging issue in relation to the effective extraction of information available on-line. In this paper we propose intelligent, tool-supported techniques for querying global information systems integrating both structured and semistructured data sources. The techniques have been developed in the env...
متن کاملTowards Intensional/ Extensional Integration between Ontologies
This paper presents ongoing research in the field of extensional mappings between ontologies. Hitherto, the task of generating mapping between ontologies has been focused on the intensional level of ontologies. The term intensional level refers to the set of concepts that are included in an ontology. However, an ontology that has been created for a specific task or application needs to be popul...
متن کاملQuery Manager functional specifications
Query processing in global information systems integrating multiple heterogeneous sources is a challenging issue in relation to the effective extraction of information available on-line. In this report we delineate the functional specifications of a query manager in the context of a data integration, wrapper/mediator based system, the MOMIS system. The developed techniques rely on the availabil...
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 2002