RIDSense  (RFID + Sensors)

We are building a sensor network in conjunction with RFIDs to gather information about the state of the inventory.  The main purpose is to build a database that can support forensic applications. The data used in these applications require continuous tracking/monitoring of measured values. A synopsis of  these values will then be used to answer forensic queries. Forensic queries are a particular class of queries defined on exceptions or abnormal values of the tracked/monitored attributes

Research Issues

1. Information update architecture for tracking/monitoring
   1. Forensic queries: structure and evaluation
   2. Sampling frequency of tracking vs query accuracy
   3. High-level forensic queries
2. RFID networking, integration, and management
3. Data routing
   1. Data preparation, feeding to application processes
4. Data calibration/error detection
   1. Confidence levels
   2. Actionable data
5. Storing monitored values

Publications:

1 Data Cleaning

1. Book Chapter : Statistical approaches to cleaning sensor data, In a book on sensor networks, CRC press, November 2003
2. Elnahrawy and Badri Nath, Context aware sensors, To appear in European workshop on sensor networks, January 2004
3. Eiman Elnahrawy and Badri Nath, Cleaning and querying noisy sensors, In WSNA 2003, San Diego,