Wol-Young Lee

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One of the virtues of XML is that it allows complex structures to be easily expressed. This allows XML to be used as an intermediate, neutral, and standard form for representing many types of structured or semistructured documents that arise in a great variety of applications. To support for efficient queries against XML data, many query languages have been(More)
In an earlier article, we motivated the need for structure-agnostic, that is, non-navigational, queries against XML documents. The conventional XML query languages require the users to know the structure of the XML documents and specify search conditions on the structure. However, the expressive flexibility of XML can give rise to many different(More)
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