Ⅹ ML Search Languages Three classes of Xml search languages Keyword search book xml Path Expression Keyword search /book[ title about“ xml db” XQuery Complex full-text search for sb in /book let score Ss: =Sb ftcontains xml""&&db distance 58 XML Search Languages • Three classes of XML search languages – Keyword search • “book xml” – Path Expression + Keyword search • /book[./title about “xml db”]] – XQuery + Complex full-text search • for $b in /book let score $s := $b ftcontains “xml” && “db” distance 5