2013 Fiscal Year Final Research Report
A study on XML data exchange with query optimization
| Project/Area Number |
23500120
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Media informatics/Database
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | XML / データベース / 問合せ解析 / データ統合 |
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| Research Abstract |
Our aim is to develop fundamental technologies for utilizing an XML document conforming to a schema by transforming it to a document conforming to another schema. In this research, we have adopted XPath, a query language to XML documents, to represent a common structure of candidates for transformed XML documents, because such representation will be useful for query optimization. One of our contributions is several conditions where it can be decided efficiently whether a given XPath expression is really a common structure of a given set of candidate documents. We have also tackled other theoretical problems related to data exchange.
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