Gestion efficace de séries temporelles en P2P: Application à l'analyse technique et l'étude des objets mobiles

Details Gestion efficace de séries temporelles en P2P: Application à l'analyse technique et l'étude des objets mobiles Gestion efficace de séries temporelles en P2P: Application à l'analyse technique et l'étude des objets mobiles

2010-06-03

arxiv.org/abs/1006.0576v1

Bases de Donn\'ees Avanc\'ees, Namur : Belgium (2009)

Computer Science

Databases

Scientific paper

In this paper, we propose a simple generic model to manage time series. A time series is composed of a calendar with a typed value for each calendar entry. Although the model could support any kind of XML typed values, in this paper we focus on real numbers, which are the usual application. We define basic vector space operations (plus, minus, scale), and also relational-like and application oriented operators to manage time series. We show the interest of this generic model on two applications: (i) a stock investment helper; (ii) an ecological transport management system. Stock investment requires window-based operations while trip management requires complex queries. The model has been implemented and tested in PHP, Java, and XQuery. We show benchmark results illustrating that the computing of 5000 series of over 100.000 entries in length - common requirements for both applications - is difficult on classical centralized PCs. In order to serve a community of users sharing time series, we propose a P2P implementation of time series by dividing them in segments and providing optimized algorithms for operator expression computation.

Affiliated with

Also associated with

No associations

Rating

Gestion efficace de séries temporelles en P2P: Application à l'analyse technique et l'étude des objets mobiles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gestion efficace de séries temporelles en P2P: Application à l'analyse technique et l'étude des objets mobiles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gestion efficace de séries temporelles en P2P: Application à l'analyse technique et l'étude des objets mobiles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-513390