2010 | OriginalPaper | Buchkapitel
Online Pattern Aggregation over RFID Data Streams
verfasst von : Hailong Liu, Zhanhuai Li, Qun Chen, Shanglian Peng
Erschienen in: Web-Age Information Management
Verlag: Springer Berlin Heidelberg
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Complex events are very useful in
radio frequency identification
(
RFID
) applications. Even though many techniques have been proposed to detect RFID complex event instances online, they do not support online pattern aggregation operations. In this paper, we present an online pattern aggregation algorithm, named
RFID_PAQ
.
RFID_PAQ
divides a sliding window into several sub-windows and computes its aggregation value from those of its sub-windows. Based on the distribution characteristics of RFID data streams, we design different mapping functions to dispatch events to related sub-windows. Finally, our extensive experiments demonstrate that
RFID_PAQ
is effective and efficient.