Patent
Suivi de grands nombres d'objets mobiles dans un système de traitement d'événements
TLDR
In this paper, the authors concerne des techniques for suivre de grands nombres d'objects mobiles dans un systeme de traitement d'evenements, permettant de ce fait le traitement en parallele d'une ou de plusieurs interrogations continues.Abstract:
L'invention concerne des techniques pour suivre de grands nombres d'objets mobiles dans un systeme de traitement d'evenements. Dans un ensemble de modes de realisation, un flux d'evenements d'entree peut etre recu, les evenements dans le flux d'evenements d'entree representant le deplacement d'une pluralite de geometries ou d'objets. Le flux d'evenements d'entree peut ensuite etre partage entre un certain nombre de nœuds de traitement du systeme de traitement d'evenements, permettant de ce fait le traitement en parallele d'une ou de plusieurs interrogations continues pour suivre les objets. Dans un mode de realisation particulier, le partage peut etre effectue de sorte que (1) chaque nœud de traitement soit configure pour suivre des objets dans une region spatiale predefinie, et (2) les regions spatiales pour au moins deux nœuds se superposent. Cette fenetre de superposition permet a un nœud unique de trouver, par exemple, tous les objets dans les limites d'une distance particuliere d'un objet cible, meme si l'objet cible se deplace de la region de ce nœud vers la region de superposition d'un autre nœud.read more
Citations
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Journal Article
A cluster-based TMO-structured scalable approach for location information systems.
TL;DR: Major features of GALIS are presented together with discussions on trade-off considerations which led to the adoption of those features and issues remaining for further research are also briefly discussed.
References
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Journal Article
Distributed continuous range query processing on moving objects
TL;DR: In this paper, a distributed server infrastructure is introduced to partition the entire service region into a set of service zones and cooperatively handle requests of continuous range queries, which improves the robustness and flexibility of the system by adapting to a time-varying set of servers.
Proceedings ArticleDOI
Dynamic data management for location based services in mobile environments
Shiow-yang Wu,Kun-Ta Wu +1 more
TL;DR: A set of dynamic data management strategies that employs judicious caching, proactive server pushing and neighborhood replication to reduce service cost and improve response time under changing user mobility and access patterns are proposed.
Book ChapterDOI
Distributed continuous range query processing on moving objects
TL;DR: A novel query indexing structure, which records the difference of the query distribution on a grid model is proposed, which significantly reduce the size and complexity of the index so that in-memory indexing can be achieved on mobile objects with constrained memory size.
Proceedings ArticleDOI
Processing location dependent continuous queries in distributed mobile databases using mobile agents
M. Vijayalakshmi,Anand Kannan +1 more
TL;DR: This paper presents a system that supports distributed processing of location-dependent continuous queries on distributed mobile data in a mobile environment using mobile agents and proposes a shared incremental update mechanism, which caches the results of the previously evaluated queries and avoids redundant results thereby minimizing the data traffic in wireless environment.
Proceedings ArticleDOI
A Cluster-Based TMO-Structured Scalable Approach for Location Information Systems
TL;DR: GALIS (Gracefully Aging Location Information System) as mentioned in this paper is based on the new approach of using a cluster of database server nodes and effecting efficient distributed and parallel computing in both real-time update of location records of moving items and processing of location-related queries.