Distributed XML design
Distributed XML design
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分布式XML设计
DOI:
10.1145/1559795.1559833
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Abiteboul S
中科院分区:
文献类型:
--
作者:
Abiteboul S
Adistributed XML documentis an XML document that spans several machines or Web repositories. We assume that a distribution design of the document tree is given, providing an XML tree some of whose leaves are "docking points", to which XML subtrees can be attached. These subtrees may be provided and controlled by peers at remote locations, or may correspond to the result of function calls, e.g., Web services. If a global type τ, e.g. a DTD, is specified for a distributed documentT, it would be most desirable to be able to break this type into a collection of local types, called a local typing, such that the document satisfies τ if and only if each peer (or function) satisfies its local type. In this paper we lay out the fundamentals of a theory of local typing and provide formal definitions of three main variants of locality: local typing, maximal local typing, and perfect typing, the latter being the most desirable. We study the following relevant decision problems: (i) given a typing for a design, determine whether it is local, maximal local, or perfect; (ii) given a design, establish whether a (maximal) local, or perfect typing does exist. For some of these problems we provide tight complexity bounds (polynomial space), while for the others we show exponential upper bounds. A main contribution is a polynomial-space algorithm for computing a perfect typing in this context, if it exists.
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DOI:
--
发表时间:
2001
期刊:
International Workshop/Symposium on Database Programming Languages
影响因子:
--
作者:
Dan Suciu
通讯作者:
Dan Suciu
DOI:
--
发表时间:
2010
期刊:
ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems
影响因子:
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作者:
W. Martens;Matthias Niewerth;T. Schwentick
通讯作者:
T. Schwentick
DOI:
--
发表时间:
2001
期刊:
J. Autom. Lang. Comb.
影响因子:
--
作者:
Sheng Yu
通讯作者:
Sheng Yu
DOI:
--
发表时间:
2003
期刊:
Conference on User Services
影响因子:
--
作者:
Luis O. Hernández;Mahmoud Pegah
通讯作者:
Mahmoud Pegah
DOI:
--
发表时间:
2006
期刊:
International Conference on Extending Database Technology
影响因子:
--
作者:
S. Abiteboul;I. Manolescu;E. Taropa
通讯作者:
E. Taropa