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VLDB
2002
ACM
108views Database» more  VLDB 2002»
13 years 10 months ago
Generic Database Cost Models for Hierarchical Memory Systems
Accurate prediction of operator execution time is a prerequisite for database query optimization. Although extensively studied for conventional disk-based DBMSs, cost modeling in ...
Stefan Manegold, Peter A. Boncz, Martin L. Kersten
DEXA
2003
Springer
115views Database» more  DEXA 2003»
14 years 4 months ago
Storing and Querying XML Data in the Nested Relational Sequence Database System
Abstract. We developed the Nested Relational Sequence Database System (NRSD System), which is built upon the Nested Relational Sequence Model (NRSM). The NRSM eliminates a substant...
Ho Lam Lau, Wilfred Ng
SAC
2010
ACM
14 years 5 months ago
Web-based graphical querying of databases through an ontology: the Wonder system
Biological scientists have made large amounts of data available on the Web, which can be accessed by canned or precomputed queries presented via web forms. To satisfy further info...
Diego Calvanese, C. Maria Keet, Werner Nutt, Maria...
ICDE
2010
IEEE
186views Database» more  ICDE 2010»
14 years 10 months ago
Mini-Me: A Min-Repro System for Database Software
Testing and debugging database software is often challenging and time consuming. A very arduous task for DB testers is finding a min-repro ? the "simplest possible setup"...
Nicolas Bruno, Rimma V. Nehme
TSD
2004
Springer
14 years 4 months ago
A New Multi-modal Database for Developing Speech Recognition Systems for an Assistive Technology Application
In this paper we report on the acquisition and content of a new database intended for developing audio-visual speech recognition systems. This database supports a speaker dependen...
António Moura, Diamantino Freitas, Vitor Pe...