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SIGMOD
1993
ACM
93views Database» more  SIGMOD 1993»
14 years 2 months ago
Design and Implementation of the Glue-Nail Database System
We describe the design and implementation of the Glue-Nail database system. The Nail language is a purely declarative query language; Glue is a procedural language used for nonque...
Marcia A. Derr, Shinichi Morishita, Geoffrey Phipp...
AOSE
2007
Springer
14 years 2 months ago
Refining Goal Models by Evaluating System Behaviour
Abstract. Nowadays, information systems have to perform in complex, heterogeneous environments, considering a variety of system users with different needs and preferences. Software...
Mirko Morandini, Loris Penserini, Anna Perini, Ang...
CADE
2007
Springer
14 years 2 months ago
The Heterogeneous Tool Set (Hets)
Abstract. Heterogeneous specification becomes more and more important because complex systems are often specified using multiple viewpoints, involving multiple formalisms. Moreover...
Till Mossakowski, Christian Maeder, Klaus Lüt...
CIKM
2007
Springer
14 years 2 months ago
Improve retrieval accuracy for difficult queries using negative feedback
How to improve search accuracy for difficult topics is an underaddressed, yet important research question. In this paper, we consider a scenario when the search results are so poo...
Xuanhui Wang, Hui Fang, ChengXiang Zhai
CANDT
2009
14 years 2 months ago
And the ringleaders were banned: an examination of protest in virtual worlds
Protest has made the jump between the offline and the online spaces and is frequently used in most virtual worlds available today. Despite the frequency of these protest actions i...
Bridget Marie Blodgett