Quality of Information in Sensor Networks

The increasing deliberate and/or ad-hoc deployment of sensor networks and the premeditated and/or opportunistic use of sensor-derived information provides enhanced visibility to everyday activities and processes that enables fast-paced decision making in personal, social, civilian, military, and business contexts. The effectiveness of the decisions made depends on the quality of the information gathered. In this paper, we highlight and build upon our recent work in the area of quality of information (QoI) for sensor networks. We present a quality-value layered definition of QoI, where the former relates to context-independent aspects and the latter to context-dependent aspects of an information product. Then we present a taxonomy of pertinent quality and value attributes anchored around a simple ontological relationship between the two. We, then, introduce a framework for assessing information products across their various attributes and ranking them based on the value they bring to a task. We close with a summary of the paper and a brief discussion of future directions for QoI research.

By: Chatschik Bisdikian; Lance M. Kaplan; Mani B. Srivastava

Published in: RC25254 in 2011


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