Titlebook: Keyword Search in Databases; Jeffrey Xu Yu,Lu Qin,Lijun Chang Book 2010 Springer Nature Switzerland AG 2010

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Keyword Search in Databases978-3-031-79426-1Series ISSN 2153-5418 Series E-ISSN 2153-5426

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Keyword Search in XML Databases,er a keyword query on . tree, and we discuss efficient algorithms to find the answers under such semantics. A main difference between this chapter and the previous chapters is that the underlying data structure is a large tree instead of a large graph.

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Other Topics for Keyword Search on Databases, are proposed to select some . among many to answer a keyword query. In Section 5.2, we discuss keyword search in a spatial database. In Section 5.3, we introduce a Page Rank based approach called . in ., and an approach that projects a database that only contains tuples relating to a keyword query.

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Graph-Based Keyword Search,Based on the primary and foreign key references defined on a relational schema, an . can be modeled as a data graph where nodes represent tuples and edges represent the foreign key references between tuples.

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Introduction,In this book, we concentrate on two kinds of databases, a relational database . and an . database. In an ., an object is a tuple that consists of many attribute values where some attribute values are strings or full-text; there is a connection between two objects if there exists at least one referen