TY - GEN
T1 - Dynamic topological predicates and notifications in moving objects databases
AU - Trajcevski, Goce
AU - Scheuermann, Peter
AU - Brönnimann, Hervë
AU - Voisard, Agnès
PY - 2005
Y1 - 2005
N2 - This work addresses the problem of efficient reactive management of topological predicates in MOD (Moving Objects Databases) settings. Detecting the satisfiability of such predicates in mobile and dynamic environments requires management of continuous and persistent conditions. We introduce two dynamical topological predicates: moving-along and moving-towards and we present efficient algorithmic solutions for their processing. Based on this, we subsequently take a deeper insight in the behavioral aspects of a MOD which manages them and we argue that the traditional ECA (Event Condition Action) paradigm, while it may ensure correct behavior, is not well-suited for enabling the users to declaratively specify some of the parameters that may affect the efficiency aspect of the reactive behavior. Towards this end, we introduce the (ECA) 2 (Evolving and Context-Aware Event-Condition-Action) paradigm as a tool for specification of the triggers used by a MOD that handles requests which span over a time-interval in dynamic environments.
AB - This work addresses the problem of efficient reactive management of topological predicates in MOD (Moving Objects Databases) settings. Detecting the satisfiability of such predicates in mobile and dynamic environments requires management of continuous and persistent conditions. We introduce two dynamical topological predicates: moving-along and moving-towards and we present efficient algorithmic solutions for their processing. Based on this, we subsequently take a deeper insight in the behavioral aspects of a MOD which manages them and we argue that the traditional ECA (Event Condition Action) paradigm, while it may ensure correct behavior, is not well-suited for enabling the users to declaratively specify some of the parameters that may affect the efficiency aspect of the reactive behavior. Towards this end, we introduce the (ECA) 2 (Evolving and Context-Aware Event-Condition-Action) paradigm as a tool for specification of the triggers used by a MOD that handles requests which span over a time-interval in dynamic environments.
KW - Event Notification Systems
KW - Moving Objects Databases
KW - Topological Predicates
UR - http://www.scopus.com/inward/record.url?scp=33644586708&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33644586708&partnerID=8YFLogxK
U2 - 10.1145/1071246.1071258
DO - 10.1145/1071246.1071258
M3 - Conference contribution
AN - SCOPUS:33644586708
SN - 1595930418
SN - 9781595930415
T3 - Proceedings - Sixth International Conference on Mobile Data Management, MDM'05
SP - 77
EP - 85
BT - Proceedings - Sixth International Conference on Mobile Data Management, MDM'05
A2 - Zaslavsky, A.
A2 - Delis, A.
A2 - Wolfson, O.
A2 - Chrysanthis, P.K.
A2 - Samaras, G.
T2 - Sixth International Conference on Mobile Data Management, MDM'05
Y2 - 9 May 2005 through 13 May 2005
ER -