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ER
1998
Springer
88views Database» more  ER 1998»
15 years 11 months ago
Numerical Aspects in the Data Model of Conceptual Information Systems
Abstract. While most data analysis and decision support tools use numerical aspects of the data, Conceptual Information Systems focus on their conceptual structure. This paper disc...
Gerd Stumme, Karl Erich Wolff
VLDB
1987
ACM
100views Database» more  VLDB 1987»
15 years 10 months ago
Optimization of Systems of Algebraic Equations for Evaluating Datalog Queries
A Datalog program can be translated into a system of fixpoint equations of relational algebra; this paper studies how such a system can be solved and optimized for a particular qu...
Stefano Ceri, Letizia Tanca
ACL
2004
15 years 8 months ago
Mining Metalinguistic Activity in Corpora to Create Lexical Resources Using Information Extraction Techniques: the MOP System
This paper describes and evaluates MOP, an IE system for automatic extraction of metalinguistic information from technical and scientific documents. We claim that such a system ca...
Carlos Rodríguez Penagos
BMCBI
2008
151views more  BMCBI 2008»
15 years 6 months ago
An integrated database-pipeline system for studying single nucleotide polymorphisms and diseases
Background: Studies on the relationship between disease and genetic variations such as single nucleotide polymorphisms (SNPs) are important. Genetic variations can cause disease b...
Jin Ok Yang, Sohyun Hwang, Jeongsu Oh, Jong Bhak, ...
SIGMOD
2004
ACM
172views Database» more  SIGMOD 2004»
16 years 6 months ago
Load Management and High Availability in the Medusa Distributed Stream Processing System
Medusa [3, 6] is a distributed stream processing system based on the Aurora single-site stream processing engine [1]. We demonstrate how Medusa handles time-varying load spikes an...
Magdalena Balazinska, Hari Balakrishnan, Michael S...