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» Querying Communities in Relational Databases
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BMCBI
2010
111views more  BMCBI 2010»
14 years 11 months ago
Comparative performances of DNA barcoding across insect orders
Background: Previous studies on insect DNA barcoding provide contradictory results and suggest not consistent performances across orders. This work aims at providing a general eva...
Massimiliano Virgilio, Thierry Backeljau, Bruno Ne...
PETRA
2009
ACM
15 years 5 months ago
Towards faster activity search using embedding-based subsequence matching
Event search is the problem of identifying events or activity of interest in a large database storing long sequences of activity. In this paper, our topic is the problem of identi...
Panagiotis Papapetrou, Paul Doliotis, Vassilis Ath...
ER
1999
Springer
108views Database» more  ER 1999»
15 years 3 months ago
Modeling Cyclic Change
Database support of time-varying phenomena typically assumes that entities change in a linear fashion. Many phenomena, however, change cyclically over time. Examples include monsoo...
Kathleen Hornsby, Max J. Egenhofer, Patrick J. Hay...
SIGMOD
1997
ACM
180views Database» more  SIGMOD 1997»
15 years 3 months ago
Online Aggregation
Aggregation in traditional database systems is performed in batch mode: a query is submitted, the system processes a large volume of data over a long period of time, and, eventual...
Joseph M. Hellerstein, Peter J. Haas, Helen J. Wan...
CORR
2002
Springer
135views Education» more  CORR 2002»
14 years 11 months ago
Minimal-Change Integrity Maintenance Using Tuple Deletions
We address the problem of minimal-change integrity maintenance in the context of integrity constraints in relational databases. We assume that integrity-restoration actions are li...
Jan Chomicki, Jerzy Marcinkowski