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VLDB
1994
ACM
128views Database» more  VLDB 1994»
15 years 7 months ago
From Nested-Loop to Join Queries in OODB
Most declarative SQL-like query languagesfor object-oriented database systems (OOSQL) are orthogonal languages allowing for arbitrary nesting of expressions in the select-, from-,...
Hennie J. Steenhagen, Peter M. G. Apers, Henk M. B...
RTDB
1996
84views more  RTDB 1996»
15 years 4 months ago
Performance-Polymorphic Execution of Real-Time Queries
We are developing an object-oriented real-time database system that includes a relationally complete query language. Unlike conventional query optimizers, our optimizer estimates ...
Thomas Padron-McCarthy, Tore Risch
EMNLP
2009
15 years 24 days ago
Gazpacho and summer rash: lexical relationships from temporal patterns of web search queries
In this paper we investigate temporal patterns of web search queries. We carry out several evaluations to analyze the properties of temporal profiles of queries, revealing promisi...
Enrique Alfonseca, Massimiliano Ciaramita, Keith H...
DEXAW
2005
IEEE
176views Database» more  DEXAW 2005»
15 years 5 months ago
Indexes and Path Constraints in Semistructured Data
In this paper, we study semistructured data and indexes preserving inclusion constraints. A semistructured datum is modelled by multi-rooted edge-labeled directed graphs. We consi...
Yves Andre, Anne-Cécile Caron, Denis Debarb...
ICDE
2009
IEEE
153views Database» more  ICDE 2009»
16 years 4 months ago
XBLEND: Visual XML Query Formulation Meets Query Processing
Due to the complexity of XML query languages, the need for visual query interfaces that can reduce the burden of query formulation is fundamental to the spreading of XML to wider c...
Zhou Yong, Sourav S. Bhowmick, Erwin Leonardi, Kla...