By Changxuan Wan, YunSheng Liu (auth.), Xiaofeng Meng, Jianwen Su, Yujun Wang (eds.)

This publication constitutes the refereed court cases of the 3rd foreign convention on Web-Age info administration, WAIM 2002 held in Beijing, China in August 2002.
The forty papers provided including method demonstrations have been conscientiously reviewed and chosen from 169 submissions. The papers are equipped in topical sections on XML; spatio-temporal databases; information mining and studying; XML and net; workflows and e-services; bio informatics, perspectives, and OLAP; clustering and high-dimensional info; internet seek; optimization and updates; and transactions and multimedia.

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Kanne, G. Moerkotte, Efficient Storage of XML Data. In Proceedings of the 16th International Conference on Data Engineering, 28 February-3 March, 2000, San Diego, California, page 198. A. Kemper, G. Moerkotte. Access Support in Object Bases. In Proceedings ACM SIGMOD Conference on Management of Data pages 364-374, Atlantic City, USA, May 1990. J. McHugh, S. Abiteboul, R. Goldman, D. Quass, J. Widom: Lore: A Database Management System for Semistructured Data. SIGMOD Record 26(3): 54-66 (1997) T.

Zheng et al. document from null section paragraph to from to from to text 1 2 4 4 6 “away after…” 2 12 28 30 “from then …” 12 14 31 32 26 28 31 33 “while…” “with …” 26 31 34 34 35 “the time…” 26 24 36 chapter from to 1 2 1 26 Fig. 2. 2 XML Path Expressions Path expressions are handled in all XML query languages [1, 4, 5]. In this paper, a path expression query is described using XQuery syntax as follows. FOR $X1 IN E1, $X2 IN E2 ($X1), …, $Xn IN En($X1, $X2, …, $Xn) WHERE C($X1, $X2, …, $Xn) RETURN $X1, $X2, …, $Xn Here, $Xi is a variable for the target nodes bound to path expression Ei.

In general, Ext(pn, cn) ⊆ Ext(any, cn) always holds. If tag name C have two parent tag names A and B, then Ext(any, C) = Ext(A, C) ∪ Ext(B, C). Definition 3 F ilter(Set, P redicate) is a set of adpairs satisfying a predicate, in which Set is a set of adpairs and P redicate is a predicate over Set. It can be defined as follows: F ilter(Set, P redicate) = {adpair(aid, did)|adpair(aid, did) ∈ Set ∧ P redicate(adpair(aid, did))}. Before discussing these index structures, we first describe the basic idea of computing a RPE query proposed in this paper, called extent join algorithm.

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