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IADIS
2004
15 years 8 months ago
Towards efficient locking of repository objects in OMG MOF repository systems
In this paper we focus on the issue of repository transactions. Similar to database objects repository objects can be accessed form multiple clients simultaneously. The organizati...
Ilia Petrov, Stefan Jablonski, Marc Holze
DEXAW
2010
IEEE
166views Database» more  DEXAW 2010»
15 years 7 months ago
Thesaurus Based Term Ranking for Keyword Extraction
In many cases keywords from a restricted set of possible keywords have to be assigned to texts. A common way to find the best keywords is to rank terms occurring in the text accord...
Luit Gazendam, Christian Wartena, Rogier Brussee
CORR
2004
Springer
146views Education» more  CORR 2004»
15 years 6 months ago
Mining Frequent Itemsets from Secondary Memory
Mining frequent itemsets is at the core of mining association rules, and is by now quite well understood algorithmically for main memory databases. In this paper, we investigate a...
Gösta Grahne, Jianfei Zhu
DKE
2002
130views more  DKE 2002»
15 years 6 months ago
Smart card embedded information systems: a methodology for privacy oriented architectural design
The design of very small databases for smart cards and for portable embedded systems is deeply constrained by the peculiar features of the physical medium. Privacy concerns are re...
Cristiana Bolchini, Fabio A. Schreiber
VLDB
2002
ACM
106views Database» more  VLDB 2002»
15 years 6 months ago
Efficient Algorithms for Processing XPath Queries
Our experimental analysis of several popular XPath processors reveals a striking fact: Query evaluation in each of the systems requires time exponential in the size of queries in ...
Georg Gottlob, Christoph Koch, Reinhard Pichler