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basic unit of query to avoid expensive join operations. Furthermore, QTPI provides a terse index that can quickly derive the keyword query and generate a set of effective structured queries by analyzing the given keyword query and scanning the index, hence it has a performance advantage over methods indexing either. We
Keyword search is an important aspect in p2p systems. Some key search methods for structured p2p systems use hypercube as a logic keyword search layer. However, the search is inefficient when query keyword set is small. In this paper, this weakness is addressed by replacing hypercube with a modified Cube-Connected
structured patterns in semistructured Web documents. A tag tree pattern is an edge labeled tree with ordered children and structured variables. An edge label of a tag tree pattern is a tag or a keyword in Web documents, or a wildcard for any string. Each variable, which matches any subtree, represents a field of a Web document
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.