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CIKM
2011
Springer
14 years 6 months ago
Lower-bounding term frequency normalization
In this paper, we reveal a common deficiency of the current retrieval models: the component of term frequency (TF) normalization by document length is not lower-bounded properly;...
Yuanhua Lv, ChengXiang Zhai
VLDB
2000
ACM
136views Database» more  VLDB 2000»
15 years 10 months ago
Managing Intervals Efficiently in Object-Relational Databases
Modern database applications show a growing demand for efficient and dynamic management of intervals, particularly for temporal and spatial data or for constraint handling. Common...
Hans-Peter Kriegel, Marco Pötke, Thomas Seidl
HICSS
1999
IEEE
152views Biometrics» more  HICSS 1999»
15 years 10 months ago
Incorporating Semantic Relationships into an Object-Oriented Database System
Semantic relationships, those class-to-class connections that carry inherent support for constraints and various other functionalities, play an important role when building inform...
Li-min Liu, Michael Halper
SIGSOFT
2000
ACM
15 years 10 months ago
Automated systematic testing for constraint-based interactive services
Constraint-based languages can express in a concise way the complex logic of a new generation of interactive services for applications such as banking or stock trading, that must ...
Patrice Godefroid, Lalita Jategaonkar Jagadeesan, ...
ISORC
2000
IEEE
15 years 10 months ago
Verification of UML-Based Real-Time System Designs by Means of cTLA
The Unified Modeling Language UML is well-suited for the design of real-time systems. In particular, the design of dynamic system behaviors is supported by interaction diagrams an...
Günter Graw, Peter Herrmann, Heiko Krumm