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XSYM
2005
Springer
154views Database» more  XSYM 2005»
14 years 3 months ago
An Extended Preorder Index for Optimising XPath Expressions
Many of the problems with native XML databases relate to query performance and subsequently, it can be difficult to convince traditional database users of the benefits of using se...
Martin F. O'Connor, Zohra Bellahsene, Mark Roantre...
FCT
2005
Springer
14 years 3 months ago
On the Black-Box Complexity of Sperner's Lemma
We present several results on the complexity of various forms of Sperner’s Lemma in the black-box model of computing. We give a deterministic algorithm for Sperner problems over ...
Katalin Friedl, Gábor Ivanyos, Miklos Santh...
DEXA
2004
Springer
96views Database» more  DEXA 2004»
14 years 3 months ago
A Selective Key-Oriented XML Index for the Index Selection Problem in XDBMS
Abstract. In relational database management systems indexes are used to accelerate specific queries. The selection of indexes is an important task when tuning a database which is ...
Beda Christoph Hammerschmidt, Martin Kempa, Volker...
SAC
2010
ACM
14 years 3 months ago
Of mice and terms: clustering algorithms on ambiguous terms in folksonomies
Developed using the principles of the Model-View-Controller architectural pattern, FolksEngine is a parametric search engine for folksonomies that allows us to test arbitrary sear...
Nicola Raffaele Di Matteo, Silvio Peroni, Fabio Ta...
ADBIS
2003
Springer
204views Database» more  ADBIS 2003»
14 years 1 months ago
Hierarchical Bitmap Index: An Efficient and Scalable Indexing Technique for Set-Valued Attributes
Abstract. Set-valued attributes are convenient to model complex objects occurring in the real world. Currently available database systems support the storage of set-valued attribut...
Mikolaj Morzy, Tadeusz Morzy, Alexandros Nanopoulo...