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CIKM
2011
Springer
13 years 9 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 1 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 1 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 1 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 1 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