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ER
1999
Springer
104views Database» more  ER 1999»
13 years 12 months ago
A Taxonomy of Recursive Relationships and Their Structural Validity in ER Modeling
Abstract. In this paper, we present the complete classification of recursive relationships and the criteria that contribute to the structural validity of modeling recursive relatio...
James Dullea, Il-Yeol Song
ASIAN
1999
Springer
118views Algorithms» more  ASIAN 1999»
13 years 12 months ago
Asynchronous Links in the PBC and M-Nets
This paper aims at introducing an extension of M-nets, a fully compositional class of high-level Petri nets, and of its low-level counter part, Petri Boxes Calculus (PBC). We intro...
Hanna Klaudel, Franck Pommereau
CVPR
1999
IEEE
14 years 9 months ago
Independent Motion: The Importance of History
We consider a problem central in aerial visual surveillance applications { detection and tracking of small, independently moving objects in long and noisy video sequences. We dire...
Robert Pless, Tomás Brodský, Yiannis...
AGP
1999
IEEE
13 years 12 months ago
Comparing expressiveness of set constructor symbols
In this paper we consider the relative expressive power of two very common operators applicable to sets and multisets: the with and the union operators. For such operators we prove...
Agostino Dovier, Carla Piazza, Alberto Policriti
PODS
1999
ACM
160views Database» more  PODS 1999»
13 years 12 months ago
Queries with Incomplete Answers over Semistructured Data
Semistructured data occur in situations where information lacks a homogeneous structure and is incomplete. Yet, up to now the incompleteness of information has not been re ected b...
Yaron Kanza, Werner Nutt, Yehoshua Sagiv