Cyber Physical Systems (CPS) consist of networks of embedded computation and communication devices, together with sensors that can monitor and control various physical processes. Our group explores various issues related to the theoretical foundations, design optimization, and implementation of CPS.

Current Projects

Theoretical Foundations

Built to interact with the physical world, a CPS system must be efficient, reliable, and safe. To optimize such systems, the science of CPS workload characteristics (e.g., self-similarity and non-stationarity) must be established. CPS modeling and design are greatly improved when statistical physics approaches - such as master equations, renormalization group theory, and fractional derivatives - are implemented in the optimization loop.

Networked Bacteria Systems

This research targets the general area of system-level control of multicellular systems that are meant to achieve complex tasks like diagnostic and targeted drug delivery. By coordinating the behavior of a large number of bacteria, we can build a reliable and robust multicellular system with predictable behaviors that can be used in health-care applications.

Bio-implantable Devices

The development of CPS for health care applications needs a coherent theory that can allow designers to comprehend and coordinate the cyber and physical resources in a unique, efficient, and robust approach. Our group explores approaches to build and control bio-implantable devices which are robust in monitoring and maintaining the heart rate activity within safe medical bounds.

Bursty Events in Microblogs

Microblogging is among the most dynamic social medium that carries realtime human interaction and shows remarkable bursts of keywords and topics. Understanding these bursty events are important because they directly correspond to real-world events that draw intensive attention from the general public. Our group focuses on building the detection, forecasting, and sense-making engines for bursty events in microblogs.

Applications of this research include viral marketing, emergency response, and disaster management.

Past Projects

Wireless Sensor Networks

The networks envisioned within this project consist of tens to hundreds of self-managed, autonomous video nodes scattered throughout an indoor or outdoor environment, capturing, processing, and transmitting relevant video data to other video nodes in the peer-to-peer wireless network. The research problems explored include secure and anonymous wireless routing, distributed power management policies, and resource-constrained video processing techniques.

Electronic Textiles

E-textiles, also called Smart Fabrics, have not only “wearable” capabilities, but also local monitoring, computation, and wireless communication capabilities. Sensors and simple computational elements are embedded into e-textiles, with the goal of gathering sensitive information, monitoring vital statistics and sending them remotely for further processing. Possible applications include medical monitoring, personal information processing systems, or remote monitoring of deployed personnel in military or space applications.