Learn more about the Connected World through talks presented by Nelms Institute researchers. The short 15-Learn more about the smart and connected world through talks presented by Warren B. Nelms Institute and University of Florida researchers. These short 15-minute presentations will cover IoT technology and applications in diverse fields, such as healthcare, agriculture, climate, transportation, and education, and reflect the diverse areas of study researched in the Warren B. Nelms Institute.
Online Monitoring of Big Data Streams in IoT Systems
Abstract: In many applications of IoT systems, process monitoring involves a large number of process variables and quality characteristics. Practitioners are desired to attain complete information about the process in order to assure quick detection of shifts that may possibly occur at any variable. However, full information is not always available during online monitoring of IoT big data streams due to limitations of monitoring resources in practice. In this talk, the challenge of IoT big data monitoring is introduced in detail and a monitoring and sampling algorithm based on data augmentation is demonstrated as one solution. Specifically, at each observation time, the proposed method will automatically augment information for unobservable variables based on the online observations, and then intelligently allocate the monitoring resources to the most suspicious data streams. Simulation studies as well as a real case study on real-time solar flare detection are conducted to demonstrate the efficacy and applicability of the proposed method.