Extremum Seeking, Lie bracket Approximations and Applications
Hans-Bernd Dürr, Christian Ebenbauer, Karl H. Johansson, Miroslav Krstic, Alexander Scheinker, Milos S. Stankovic
Location: Plaza 1

Control of Power Electronic Systems: A Device Perspective
Sudip Mazumder
Location: Plaza 2

Advances and Wish Lists in Control Research -- Celebrating Murray Wonham's 80th Birthday
Organizer: Kai Cai.
Speakers: Alberto Isidori, A. Stephen Morse, Harry Trentelman, Peter Caines, Jan van Schuppen, Peter Ramadge, Feng Lin, Karen Rudie, Rong Su, Kai Cai, Edward Davison, Raymond Kwong, Mireille Broucke, Bruce Francis
Location: Diamond 6

Ümit Özgüner: Recognition of Contributions
(Note: this workshop's schedule is 2:00 PM - 5:00 PM)
Organizers: Farshad Khorrami, Altug Iftar, David Schoenwald, Enrique Barbieri, Levant Acar.
Speakers: Farshad Khorrami, Tamer Başar, Steven Yurkovich, Marwan Simaan, Ted Davison, Joe Chow, Altug Iftar, Levent Acar, Enrique Barbieri, David Schoenwald, Mehmet Akar, Ümit Özgüner
Location: Georgia 1

Big Data Analytics for Societal Scale Cyber-Physical Systems: Energy Systems
Organizers: Lillian Ratliff, Roy Dong, Henrik Ohlsson, J. Zico Kolter, Shankar Sastry
Location: Olympic 1

Caltech CDS@20: Education, depth, breadth, and futures
Organizers: John Doyle and Richard Murray
Location: Olympic 3

Cyber-Physical Systems (CPS) Architectures
Organizer: John S. Baras
Location: Georgia 2

Geometry of Collective Behavior: Control, Dynamics and Reconstruction
Organizer: P. S. Krishnaprasad
Location: Atrium 1

How to Engineer Resilient Cyber-Physical Infrastructures
Hamsa Balakrishnan, Saurabh Amin
Location: Atrium 3

Recent advances in modeling and control for Diabetes treatment
Organizers: Diego Regruto, Francis Doyle, Daniel E. Rivera
Location: Olympic 2

Reference supervision for constraint enforcement: theory and applications
Organizers: Emanuele Garone, Stefano Di Cairano, Ilya V. Kolmanovsky
Location: Atrium 2

Extremum Seeking, Lie bracket Approximations and Applications

Location: Plaza 1

Workshop overview:
The goal of the workshop is to give an introduction to extremum seeking (ES) and to discuss recent developments in ES theory. In particular, the workshop focuses on a link between ES and Lie bracket approximations which has been established recently. This link has led to a whole series of interesting results and an easy-to-use framework for stability analysis of ES schemes. The main idea is based on approximating trajectories of the ES system by the trajectories of a system whose vector field consists of the Lie brackets of the original ES system. This approximate system is easier to analyze than the ES system and captures the qualitative behavior of the ES system. During the workshop, the Lie bracket framework is introduced and novel applications are discussed such as ES on manifolds, saddle point seeking algorithms, the stabilization of uncertain nonlinear systems, ES with bounded update rates and distributed ES for multi-agent systems.

Target audience: The workshop gives an introduction and an overview of ES theory based on Lie bracket approximations. The workshop covers the basic ideas and background material as well as recent development and novel application areas. Therefore, the workshop is of interest for a broad audience.

Organizers and speakers: Hans-Bernd Dürr, Christian Ebenbauer, Karl H. Johansson, Miroslav Krstic, Alexander Scheinker, Milos S. Stankovic

Website link: Further information can be found at this link.

Control of Power Electronic Systems: A Device Perspective

Location: Plaza 2

Workshop overview:
This workshop in the form of a tutorial provides a radically different perspective to control of switching power electronic systems. It is based on controlling the time evolution of the switching states (i.e., switching sequences) as well as controlling the switching transition of the power semiconductor device of the solid state electronic system. The former - i.e., switching-sequence based control (SBC) yields rapid response under transient condition, optimal equilibrium response, and yields seamless transition between the two states of dynamics. By enabling integration of modulation and control, SBC precludes the need for ad-hoc offline modulation synthesis. In other words, an optimal switching sequence for the power converter is generated dynamically without the need for prior determination of a modulation scheme (which generates a pre-determined switching sequence) in typical conventional approaches. One of the distinctions between SBC and conventional model predictive control (MPC) is that SBC ensure optimal determination of the switching sequence of the power converter under global stability bound. The tutorial will provide the mechanism to carry out SBC and MPC control syntheses and demonstrate the differences between SBC and MPC. Several device, converter, and network level implementations (including motor drive, multilevel converter, microgrid, parallel inverters, aircraft power system) of the SBC will be provided.
The second part of the tutorial will focus on switching transition control (STC). The primary objective of STC is to demonstrate how key power electronic system parameters including and stress, switching loss, electromagnetic noise emission can be controlled dynamically by modulating the dynamics of the power semiconductor devices. Both electrical and newly developed optical control mechanisms to achieve STC will be demonstrated. In the context of the latter, mechanisms for monolithic integration of switching sequence control as well as switching transition control will be outlined and the revolutionary impact of such a novel integration on system performance will be demonstrated with practical applications.

Target audience: This tutorial is intended for a wide spectrum of researchers and industry professional reflecting the typical distribution of CDC audience. The tutorial will also provide practical insights to those who are already or planning to get into next-generation power/energy related control and modeling research.

Organizer: Sudip K. Mazumder

Speakers: Sudip K. Mazumder (University of Illinois, Chicago), Tobias Geyer (ABB Corporate Research, Switzerland)

Advances and Wish Lists in Control Research -- Celebrating Murray Wonham's 80th Birthday

Location: Diamond 6

Workshop overview:
This workshop is to celebrate Professor Murray Wonham's 80th birthday at the CDC14, in honor of his seminal contributions to systems and control theory. The workshop also aims to create an intellectual wish list of exciting research questions in the long term.

First proved pole assignment theorem, initiated internal model principle, systematized geometric control theory, pioneered supervisory control of discrete-event systems: Professor Murray Wonham has made a number of major contributions in the field of systems and control. He is a Professor Emeritus in the University of Toronto, a Life Fellow of the IEEE, a Fellow of the Royal Society of Canada, and a Foreign Associate of the National Academy of Engineering of USA.

To celebrate the special event of Professor Wonham's 80th birthday, this workshop gathers 14 of his friends, colleagues, and former students who will present a range of topics in linear, nonlinear, and discrete-event systems. A main focus of the workshop is on composing a "wish list" of exciting problems for future control research.

Target audience: All are welcome to join us in this celebration of Professor Wonham's 80th birthday.

Organizer: Kai Cai

Speakers: Alberto Isidori, A. Stephen Morse, Harry Trentelman, Peter Caines, Jan van Schuppen, Peter Ramadge, Feng Lin, Karen Rudie, Rong Su, Kai Cai, Edward Davison, Raymond Kwong, Mireille Broucke, Bruce Francis

Website link: Further information can be found at this link.

Ümit Özgüner: Recognition of Contributions

Location: Georgia 1

Workshop overview:
This workshop is in honor and recognition of the many significant contributions of Prof. Ümit Özgüner over a long and distinguished career.
Professor Özgüner's research interests are in large scale systems, decentralized control, intelligent transportation systems and autonomous vehicles. He has been one of the pioneers in creating new courses and laboratories in the control curricula, and has mentored younger researchers in their career development. He has over 400 publications and has advised over 25 students on their PhD studies. Prof. Özgüner has been awarded on several occasions the Ohio State University College of Engineering Lumley Research Awards.

This workshop is organized into the following two parts: remarks by several prominent leaders in the field and a technical part comprised of four talks.
The first part of the workshop will feature remarks by prominent leaders in the systems and control field, who have collaborated with Ümit Özgüner and have known him for over the past 40 years.
The second part of the workshop will feature talks on advanced topics in large scale systems, and control of autonomous systems by some of the former students of Ümit Özgüner. These technical talks will be given by

1. Prof. Farshad Khorrami (NYU) - "Decentralized Control and Robotics Applications"
2. Prof. Altug Iftar (Anadolu Univ.) - "Decentralized Control of Time-Delay Systems"
3. Prof. Mehmet Akar (Boğaziçi Univ.) - "Distributed Consensus, Markov Chains, and Fast Mixing"
4. Dr. David Schoenwald (Sandia National Labs) - "Decentralized Control Challenges in Large-Scale Electric Power Networks"

Organizers: Farshad Khorrami, Altug Iftar, David Schoenwald, Enrique Barbieri, Levant Acar.

Speakers: Farshad Khorrami, Tamer Başar, Steven Yurkovich, Marwan Simaan, Ted Davison, Joe Chow, Altug Iftar, Levent Acar, Enrique Barbieri, David Schoenwald, Mehmet Akar, Ümit Özgüner

Website link: Further information can be found at this link.

Big Data Analytics for Societal Scale Cyber-Physical Systems: Energy Systems

Location: Olympic 1

Workshop overview and target audience:
In this workshop we bring together individuals from industry and academia (including graduate students, faculty, and researchers) to discuss resilient societal scale cyber physical systems (CPS). We will focus on one of the most rapidly modernizing CPS, the energy sector, and will use tools from a wide range of fields and areas--including automatic control, system identification, compressed sensing, privacy, security, and machine learning--to address potential new technologies for societal-scale CPS. The aim is to understand what problems that are of practical relevance and to identify interesting and promising directions for future research.

The workshop will begin with an introductory session in the morning focusing on societal scale cyber-physical systems and analytics. It will be followed by lecture series in four main areas: industrial needs, incentive design, resilience: security, and resilience: privacy. The workshop will conclude with a panel and round-table discussion focusing on the future of research for societal scale cyber-physical systems.

Organizers: Lillian Ratliff, Roy Dong, Henrik Ohlsson, Zico Kolter, Shankar Sastry

Speakers: Shankar Sastry, Zico Kolter, Henrik Ohlsson, Lillian Ratliff, Roy Dong, Saurabh Amin, Alberto Speranzon, Xenofon Koutsoukous, Henrik Sandberg, Stephen Wicker, George Pappas, Alvaro Cardenas

Website link: Further information can be found at this link and at the workshop's website.

Caltech CDS@20: Education, depth, breadth, and futures

Location: Olympic 3

Workshop overview:
This tutorial workshop will be organized and presented by John Doyle and Richard Murray.

The 20th anniversary of Control and Dynamical Systems (CDS) at Caltech is in 2014 and we will focus on lessons learned in both research and education, with a particular focus on implications for the future of our field.

The theory foundations will start with the interplay between robust and nonlinear control and recent progress in distributed control for complex networks, and interactions with computer science in the areas of networking, formal methods, optimization, and statistics.

A focus will be on the status and prospects for a more unified theory of control, communication, computing, and physics. Familiar CDC technological case studies (e.g. aerospace, robots, Internet, power) will be augmented with applications to systems and synthetic biology, insect flight, medical physiology, particularly heart rate and other control system variability, neuroscience, physics (turbulence, statistical mechanics), and wildfire ecology.

There will be a related full day tutorial before the CDS 20th anniversary in August, 2014 at Caltech, and will also draw inspiration from the 3 days of talks there by alumni and friends.

Target audience: The intent is to be broadly accessible to anyone attending CDC.

Organizers and Speakers: John Doyle and Richard Murray

Website link: Further information can be found at this link.

Cyber-Physical Systems (CPS) Architectures

Location: Georgia 2

Workshop overview:
This workshop will follow two successful invited panels, one at the 2013 ICCPS, in Philadelphia, PA, and one at the 2013 IEEE CDC in Florence, Italy on the same topic. It is timely as both the NSF and the NIST have launched efforts and working groups to develop research agendas and roadmaps on this key topic for further developments and progress in the synthesis, design and manufacturing of Cyber-Physical Systems (CPS) and Cyber-Physical-Human Systems (CPHS).

The theme of this workshop is to present the current state of understanding and development of CPS architectures in various domains of applications including heterogeneous energy systems, smart grids, heterogeneous sensor networks, automotive systems, aircraft systems, transportation systems, collaborative robotic systems, smart manufacturing systems. The six lectures will present emerging concepts, paradigms and needs towards developing a systematic and rigorous methodology, models and analysis for CPS architectures. In addition the lectures will present various metrics and characterizations of CPS architectures with the goal of progressing towards the development of a taxonomy of CPS architectures. Finally the lectures will describe current and developing methods and tools to capture, develop, analyze and compare CPS architectures.

In a generic sense one understands by Architecture a description of the various structure and behavior components of a system together with their configuration and interfaces and interconnections. The concept of Architecture for CPS is a challenging concept as it needs to account for both the physical and cyber constraints. For instance physical and material laws as well as geometric laws and reasoning will guide the physical part. The same is true for various concepts of time, their constraints and their integration. Extensions of current distributed architectures for computers at all scales, and including both digital and analog components need to be considered. Even more importantly the interplay between the principles and rules of architectures from the physical and cyber sides need to be considered and brought to harmony within an appropriate systematic framework. An overarching goal of this workshop is to establish an initial platform for the current understanding of CPS Architectures, which will be useful as a basis for further developments and research agendas.

By allowing question and answer periods and discussion periods, the longer term goal of this workshop is to accelerate the discussion within the CPS technical community towards developing principles, languages and a taxonomy of such architectures for CPS.

Target audience: The intended audience includes graduate students and researchers in systems, control, design, manufacturing, operation of complex systems, consisting of many interconnected, and tightly integrated and interacting, cyber and heterogeneous physical components, and industry and government practitioners interested in practical challenges in these so called cyber-physical systems (CPS). CPS are also known by various other terms including: Industrial Internet, Internet of Things, Industrie 4.0. This workshop aims at introducing key concepts, methods of description and analysis, critical technologies, software environments, and the state-of-the-art, regarding architectures of CPS. Clearly the concept of system architecture is central to any system, and is particularly challenging for CPS. Given the ubiquitous nature of CPS in today’s world, this workshop will be of interest to graduate students, researchers, and industry professionals.

Organizer: John S. Baras

Speakers: Karl Henrik Johannson, Vijay Kumar, S. Shankar Sastry, Vijay Srinivasan, Janos Sztipanovits and John Baras

Website link: Further information can be found at this link.

Geometry of Collective Behavior: Control, Dynamics and Reconstruction

Location: Atrium 1

Workshop overview:
The goal of this full-day workshop is to provide a self-contained and structured perspective of advances in the study of collective dynamic behavior in nature (bird flocks, fish schools) and technology (such as autonomous air-land-sea vehicles). To this end, the workshop will introduce the participant to a class of models and interaction strategies, associated control laws, and principles and algorithms for the discovery and synthesis of control laws that achieve collective behavior with a purpose. In addition to the stated examples, the study of collective behavior has a distinguished role in the foundations of physical science, as in work on the problem of stability of the solar system (by Lagrange, Laplace and their illustrious descendants), and James Clerk Maxwell's investigation of the character and stability of Saturn's rings (1859). Technical linkages to this scientific heritage will be pointed out.

As a distinctive feature of this workshop, geometric ideas will occupy a central place in the conceptual framework of the presentations. Geometry enters the investigation of collective behavior from multiple vantage points: the structure of configuration space; the synthesis of control strategies; the role of symmetries and reduction in closed loop dynamics; the analysis of empirical data from biology; and the realization of control strategies in autonomous systems.

In this workshop we will present an exposition of developments in these directions, including some low dimensional examples. We will also examine methods to assimilate sampled observations of collectives of continuous time dynamical systems, e.g. predator-prey encounters and bird (starlings) flocking events, into generative models with continuous time inputs and outputs. Results of such assimilation (reconstruction) will then be used to evaluate hypotheses of interest, based on correlations, delays, and possible mechanisms of interaction between elementary units of the observed population. We will discuss models via moving frames and methods from nonlinear smoothing, to solve the problem of numerically reconstructing collectives. We will also discuss optimal control methods for computational schemes, and questions of integrability of extremals.

The lectures will rely on basic tools from the theory of Lie groups and Lie algebras, and differential geometry. These tools will be presented in an accessible and just-in-time manner during course of the workshop. Software tools developed by the lecturers will be demonstrated on real datasets (from biology to underwater robotics). Laboratory implementations of control laws on robotic platforms (in a test-bed at the University of Maryland) will provide illustrations of the strengths and broad applicability of the theoretical framework of the workshop.

Target audience: The intended audience would include graduate students and post-doctoral researchers, industry participants with a focus on distributed sensing and control in multi-agent robotics. Only pre-requisites assumed would be knowledge of differential equations, matrix algebra, basic mechanics, and interest and curiosity about the biological basis of collective behavior with applications to robotics. Senior researchers and control software designers interested in the broad area of collaborative autonomous systems and seeking to explore geometric methods may also find this workshop useful.

Organizer: P. S. Krishnaprasad.

Speakers: Biswadip Dey, Kevin Galloway, Eric Justh, P. S. Krishnaprasad, Matteo Mischiati, and Fumin Zhang.

Website link: Further information can be found at this link.

How to Engineer Resilient Cyber-Physical Infrastructures

Location: Atrium 3

Workshop overview:
Modern infrastructure systems are equipped with increasing amounts of computing and communication technologies, with the objective of improving their performance. Additionally, these systems also involve significant interactions with human operators and participants. An important need, especially in the case of safety-critical infrastructures, is engineering their resilience -- both to random failures and targeted adversarial attacks. With the increasingly interconnected nature of infrastructure systems, issues of network control and cascading failures are a growing concern.

There has been considerable recent progress on control- and systems-theoretic approaches to building resilient infrastructure systems. The approaches have addressed a range of needs of cyber-physical systems, including fault-tolerant and robust control and optimization, intrusion detection and response, security and privacy concerns, software verification and validation, human-automation interactions, mechanism design, modeling and simulation, etc. These techniques have been studied in the context of a range of infrastructure systems, such as transportation, electricity, energy, telecommunications, and water and gas distribution systems.

This workshop will review the state-of-the-art in control-theoretic approaches to build resilient cyber-physical infrastructures. Experts from industry and academia will describe key challenges, promising approaches and necessary future research directions.

Target audience: The intended audience includes graduate students and researchers in controls interested in cyber-physical infrastructures, and practitioners interested in practical challenges in infrastructure systems. This workshop aims at introducing key technologies and the state-of-the-art in control-theoretic and game-theoretic tools for engineering cyber-physical infrastructure systems that are resilient to adversarial attacks and random failures. Given the ubiquitous nature of cyber-physical infrastructure systems in today's world, this workshop will be of interest to graduate students, researchers, and industry professionals.

Organizers: Saurabh Amin and Hamsa Balakrishnan

Speakers: Saurabh Amin, Hamsa Balakrishnan, Tamer Basar, Eric Feron, Karl Henrik Johansson, P.R. Kumar, George Pappas, Tariq Samad, Demos Teneketzis and Claire Tomlin

Website link: Further information can be found at this link.

Recent advances in modeling and control for Diabetes treatment

Location: Olympic 2

Workshop overview:
Diabetes is a common metabolic disorder characterized by chronic hyperglycemia that leads to a number of critical health complications including limb loss, blindness and ischemic heart disease, just to cite a few. Unfortunately, the traditional approach to the management of diabetes, based on multiple daily subcutaneous insulin injections, is inadequate in many cases. For this reason, significant research efforts have been devoted in the last decades to overcome the limitations of the traditional medical practice. Recent technological advances in the fields of implantable glucose sensor and programmable insulin pump of small size have paved the way to the realization of an artificial pancreas, i.e. a feedback control system designed for computing in real-time the best possible insulin delivering strategy on the basis of a mathematical model of the diabetic patient.

The workshop objective is (i) to provide to the control community a tutorial overview of the recent advances in the field of modeling and control for diabetes care and (ii) to stimulate interaction between the control community and the medical/biomedical industry community on the subject of diabetes care. In order to meet such objectives, the workshop proposers have brought together eight speakers taken among the most renowned leading experts in the areas of modeling and control for diabetes care (four from the control and biomedical engineering academic research community, and four from the medical/industry community). The eight proposed lectures will span, in a tutorial fashion, some of the most significant aspects of the problem ranging from modeling of the diabetic patient dynamics to closed-loop control and continuous glucose monitoring sensor design. Open problems representing challenging opportunity for the control/system identification research community will also be presented.

This workshop is jointly organized by two IEEE CSS technical committees as part of their activities: the IEEE CSS Technical Committee on System Identification and Adaptive Control (chaired by Diego Regruto) and the IEEE Technical Committee on Medical and Health Care Systems TC-MHCS (chaired by Daniel Rivera).

Target audience: We believe that the proposed workshop will benefit the identification/control community as well as other communities, e.g., signal processing, biomedical engineering. We believe that the potential audience of this workshop comprises a relatively large number of CDC participants. The workshop will be the opportunity for a lively and productive interaction between academic and industry experts of the field.

Organizers: Diego Regruto, Frank Doyle, Daniel Rivera

Speakers: Wayne Bequette, Bruce A. Buckingham, Claudio Cobelli, Lane Desborough, Frank Doyle, Boris P. Kovatchev, David Price, Howard Zisser

Website link: Further information can be found at this link.

Reference supervision for constraint enforcement: theory and applications

Location: Atrium 2

Workshop overview:
The goal of this full-day workshop is to introduce the design, implementation, and applications of supervisory reference management schemes for constrained systems.

Supervisory reference management refers to “modifying” the reference to a pre-compensated system whenever necessary so that pointwise-in-time state and control constraints are not violated. Reference governors and command governors represent specific examples of supervisory reference management control schemes. This approach is of particular interest in the industrial practice where legacy controllers already exist that are reliable and well performing and (for cost and organizational reasons, among others) the full redesign of the control system to enforce constraints is to be avoided. In these cases, constraint enforcement can be accomplished by augmenting the existing controllers with relatively simple reference management schemes that rigorously guarantee constraint enforcement and that possess desirable convergence properties.

In this workshop the basic theory of supervisory reference management will be carefully explained, and the participants will be provided with all the tools needed to understand, design and implement such reference management strategies for various classes of systems (linear, nonlinear, networked, decentralized, etc.). Advanced aspects, based on recent research developments, will also be discussed. A series of technologically relevant applications of these schemes to systems in automotive, aerospace and electric power grid domains will also be demonstrated.

The workshop will end with an overview of current research on the subject, and a panel discussion on the present status and future research topics for supervisory reference management.

Target audience: The workshop is mainly designed for young researchers, students, engineers, and practitioners interested in constrained control and in technological problems where constraints enforcement represents an important aspect of operating the system. The prerequisites for the workshop are graduate level courses in control and system theory.

Organizers: E. Garone, S. Di Cairano, I. Kolmanovsky

Speakers: E. Garone, I. Kolmanovsky, S. Di Cairano, A. Casavola, F. Tedesco, others TBD

Website link: Further information can be found at this link.