2 research outputs found
Distributed Inference and Query Processing for RFID Tracking and Monitoring
In this paper, we present the design of a scalable, distributed stream
processing system for RFID tracking and monitoring. Since RFID data lacks
containment and location information that is key to query processing, we
propose to combine location and containment inference with stream query
processing in a single architecture, with inference as an enabling mechanism
for high-level query processing. We further consider challenges in
instantiating such a system in large distributed settings and design techniques
for distributed inference and query processing. Our experimental results, using
both real-world data and large synthetic traces, demonstrate the accuracy,
efficiency, and scalability of our proposed techniques.Comment: VLDB201
When Things Matter: A Data-Centric View of the Internet of Things
With the recent advances in radio-frequency identification (RFID), low-cost
wireless sensor devices, and Web technologies, the Internet of Things (IoT)
approach has gained momentum in connecting everyday objects to the Internet and
facilitating machine-to-human and machine-to-machine communication with the
physical world. While IoT offers the capability to connect and integrate both
digital and physical entities, enabling a whole new class of applications and
services, several significant challenges need to be addressed before these
applications and services can be fully realized. A fundamental challenge
centers around managing IoT data, typically produced in dynamic and volatile
environments, which is not only extremely large in scale and volume, but also
noisy, and continuous. This article surveys the main techniques and
state-of-the-art research efforts in IoT from data-centric perspectives,
including data stream processing, data storage models, complex event
processing, and searching in IoT. Open research issues for IoT data management
are also discussed