V. Christophides, S. Abiteboul, S. Cluet and M. Scholl: From Structured Documents to Novel Query Facilities, Proceedings of the ACM SIGMOD International Conference on Management of Data (SIGMOD'94), pp. 313-324, May 1994.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....ISE schema, rather than in the internals of the system. The WSQ DSQ [14] project proposes an architecture where web searches are specified as SQL queries to two virtual relational tables. Their relational tables are inflexible for the purpose, compared to our ISE schema. The focus of the work in [5] is re write rules and cost models for integrating text search with other queries. Those rewrite rules are applicable in our translator too. To the best of our knowledge, no other project proposes a system that uses inheritance and overloading to model ISEs and their results on the conceptual ....

....query to Google (it uses AND by default) During query translation, there are possible query transformations that can dramatically improve performance and result quality. We have implemented some translator rules to show the usefulness of the system and can utilize other results in related areas [5], 6] 7. Summary A flexible system for querying Internet search engines through an OO mediator database system was presented. The system has the following unique combination of features: 1. Data about both the search engine capabilities and the results they return were modeled in an OO ISE ....

V. Christophides, S. Abiteboul, S. Cluet, M Scholl: From Structured Documents to Novel Query Facilities. SIGMOD 1994 Conference: 313-324, 1994.

....ISE schema, rather than in the internals of the system. The WSQ DSQ [14] project proposes an architecture where web searches are specified as SQL queries to two virtual relational tables. Their relational tables are inflexible for the purpose, compared to our ISE schema. The focus of the work in [5] is re write rules and cost models for integrating text search with other queries. Those rewrite rules are applicable in our translator too. To the best of our knowledge, no other project proposes a system that uses inheritance and overloading to model ISEs and their results on the conceptual ....

....query to Google (it uses AND by default) During query translation, there are possible query transformations that can dramatically improve performance and result quality. We have implemented some translator rules to show the usefulness of the system and can utilize other results in related areas [5], 6] 7. Summary A flexible system for querying Internet search engines through an OO mediator database system was presented. The system has the following unique combination of features: 1. Data about both the search engine capabilities and the results they rerum were modeled in an OO ISE ....

V. Christophides, S. Abiteboul, S. Cluet, M Scholl: From Structured Documents to Novel Query Facilities. SIGMOD 1994 Conference: 313-324, 1994.

....SQL 99. When available, the DTD meta data descriptions of the XML documents are used to infer the OO schema. If there is no DTD specified the system will incrementally infer the OO schema while reading the XML documents using a set of translation rules. A straightforward translation, as is done in [3] for an extended OQL, will generate many types (classes) and make the queries clumsy, with many levels of function calls. The system therefore has a strategy to translate XML elements to functions (attributes or methods) rather than types when possible. It may then happen that the system first ....

....OIDs; an OO query processing system; a convention for what constitutes an OO database schema from a set of XML documents; a translation mechanism from XML data to objects in the mediator. We use an OO data model to which XML data is translated similar to what is proposed for SGML in [3]. In [12] a strategy is devised to generate a graph called the Data Guide that summarizes containment relationships among XML elements using the OEM graph data model. In our case we generate the containment relationships as both type (class) and function (attribute) definitions. Unlike [3] we use ....

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V.Christophides, S.Abitteaboul, S.Cluet and M.Scholl: From Structured Documents to Novel Query Facilities, ACM SIGMOD Conf., Minneapolis, 1994.

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V. Christophides, S. Abiteboul, S. Cluet and M. Scholl: From Structured Documents to Novel Query Facilities, Proceedings of the ACM SIGMOD International Conference on Management of Data (SIGMOD'94), pp. 313-324, May 1994.

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V. Christophides, S. Abiteboul, S. Cluet and M. Scholl: From Structured Documents to Novel Query Facilities, Proceedings of the ACM SIGMOD International Conference on Management of Data (SIGMOD'94), pp. 313-324, May 1994.

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