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SIGMOD
2008
ACM
143views Database» more  SIGMOD 2008»
15 years 10 months ago
XML query optimization in the presence of side effects
The emergence of database languages with side effects, notably for XML, raises significant challenges for database compilers and optimizers. In this paper, we extend an algebra fo...
Giorgio Ghelli, Nicola Onose, Kristoffer Hø...
ECWEB
2003
Springer
141views ECommerce» more  ECWEB 2003»
15 years 3 months ago
Storing DTD-Conscious XML Data in XEDY
Abstract. In this paper, we discuss the XEDY system for storing DTDconscious XML data in a standard relational databases management system. For this, we propose a database schema f...
Sourav S. Bhowmick, Tay Khim Wee, Erwin Leonardi, ...
CIKM
1998
Springer
15 years 2 months ago
Efficient Enumeration of Frequent Sequences
In this paper we present SPADE, a new algorithm for fast discovery of Sequential Patterns. The existing solutions to this problem make repeated database scans, and use complex has...
Mohammed Javeed Zaki
PODS
2005
ACM
211views Database» more  PODS 2005»
15 years 10 months ago
Join-distinct aggregate estimation over update streams
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. Pro...
Sumit Ganguly, Minos N. Garofalakis, Amit Kumar, R...
ICDE
2010
IEEE
211views Database» more  ICDE 2010»
15 years 4 months ago
ROX: The robustness of a run-time XQuery optimizer against correlated data
— We demonstrate ROX, a run-time optimizer of XQueries, that focuses on finding the best execution order of XPath steps and relational joins in an XQuery. The problem of join or...
Riham Abdel Kader, Peter A. Boncz, Stefan Manegold...