de Assis, Luiz Fernando F. G.
Horita, Flavio E. A.
de Freitas, Edison P.
de Albuquerque, Joao Porto
Total Authors: 5
 Univ Sao Paulo, Inst Math & Comp Sci ICMC, BR-13566590 Sao Carlos, SP - Brazil
 Fed Univ ABC, Ctr Math Computat & Cognit, BR-09210580 Santo Andre, SP - Brazil
 Univ Fed Rio Grande do Sul, BR-90040060 Porto Alegre, RS - Brazil
 Univ Warwick, Ctr Interdisciplinary Methodol, Coventry CV4 7AL, W Midlands - England
Total Affiliations: 4
Web of Science Citations:
The increasing number of sensors used in diverse applications has provided a massive number of continuous, unbounded, rapid data and requires the management of distinct protocols, interfaces and intermittent connections. As traditional sensor networks are error-prone and difficult to maintain, the study highlights the emerging role of citizens as sensors as a complementary data source to increase public awareness. To this end, an interoperable, reusable middleware for managing spatial, temporal, and thematic data using Sensor Web Enablement initiative services and a processing engine was designed, implemented, and deployed. The study found that its approach provided effective sensor data-stream access, publication, and filtering in dynamic scenarios such as disaster management, as well as it enables batch and stream management integration. Also, an interoperability analytics testing of a flood citizen observatory highlighted even variable data such as those provided by the crowd can be integrated with sensor data stream. Our approach, thus, offers a mean to improve near-real-time applications. (AU)