Optimal Controller Synthesis of Variable-Time Impulsive Problems using Single Network Adaptive Critics

This paper presents a systematic approach to solve for the optimal control of a variable-time impulsive system. First, optimality condition for a variable-time impulsive system is derived using the calculus of variations method. Next, a single network adaptive critic technique is proposed to numerically solve for the optimal control and the detailed algorithm is presented. Finally, two examples-one linear and one nonlinear-are solved applying the conditions derived and the algorithm proposed. Numerical results demonstrate the power of the neural network based adaptive critic method in solving this class of problems

Advances in Reinforcement Learning

Reinforcement Learning (RL) is a very dynamic area in terms of theory and application. This book brings together many different aspects of the current research on several fields associated to RL which has been growing rapidly, producing a wide variety of learning algorithms for different applications. Based on 24 Chapters, it covers a very broad variety of topics in RL and their application in autonomous systems. A set of chapters in this book provide a general overview of RL while other chapters focus mostly on the applications of RL paradigms: Game Theory, Multi-Agent Theory, Robotic, Networking Technologies, Vehicular Navigation, Medicine and Industrial Logistic

AFIT School of Engineering Contributions to Air Force Research and Technology Calendar Year 1973

This report contains abstracts of Master of Science Theses, Doctoral dissertations, and selected faculty publications completed during the 1973 calendar year at the School of Engineering, Air Force Institute of Technology, at Wright-Patterson Air Force Base, Ohio

AFIT School of Engineering Contributions to Air Force Research and Technology Calendar Year 1973

This report contains abstracts of Master of Science Theses, Doctoral dissertations, and selected faculty publications completed during the 1973 calendar year at the School of Engineering, Air Force Institute of Technology, at Wright-Patterson Air Force Base, Ohio

Measuring client modes of engagement in humanistic experiential psychotherapy

The role of clients' emotional engagement has progressively played a central role in psychotherapy. This project inserts itself in this debate by seeking to validate the Client Modes of Engagement (CME) theoretical model (Elliott 2006; 2013a). While Elliott's CME framework-a process-diagnostic map based on clients' experiential content-was grounded on decades of research and clinical practice, it had yet to be made amenable to empirical investigation.;This project responds to this absence by offering the Client Modes of Engagement Observational Coding System (CME-OCS) and the Client Modes of Engagement Questionnaire (CMEQ-R2). These instruments measure the construct from both the perspective of external observers (CME-OCS) and therapists (CMEQ-R2).;This dissertation explores the application and validation process for both the CME-OCS and the CMEQ-R2. The results confirmed that the CME-OCS is a reliable coding system for identifying CMEs during EFT psychotherapy. Additionally, the findings suggest that there are interactions between CMEs, phases of therapy, and outcome groups. Moreover, I established that there are differences in the ways outcome groups' transition between CMEs at particular stages of therapy.;I applied both classical psychometric properties methods and Rasch modelling with the purpose of examining the CMEQ-R2's psychometrics, refining the instrument, and later applying it in a process outcome study. The results suggest that levels of CME early in therapy and changes in levels of CME over therapy-as measured by the CMEQ-R2-are significantly associated with client pre-post therapeutic improvement.;I also found firm ground for arguing that therapists can distinguish between levels of CMEs and that their perspective can be systematically analysed. Together, both instruments pose important implications for research and clinical practice. Overall, this study validates the contention that researchers and therapists should be particularly attentive to clients' manner of engagement and focus of attention on specific levels of their emotion scheme.The role of clients' emotional engagement has progressively played a central role in psychotherapy. This project inserts itself in this debate by seeking to validate the Client Modes of Engagement (CME) theoretical model (Elliott 2006; 2013a). While Elliott's CME framework-a process-diagnostic map based on clients' experiential content-was grounded on decades of research and clinical practice, it had yet to be made amenable to empirical investigation.;This project responds to this absence by offering the Client Modes of Engagement Observational Coding System (CME-OCS) and the Client Modes of Engagement Questionnaire (CMEQ-R2). These instruments measure the construct from both the perspective of external observers (CME-OCS) and therapists (CMEQ-R2).;This dissertation explores the application and validation process for both the CME-OCS and the CMEQ-R2. The results confirmed that the CME-OCS is a reliable coding system for identifying CMEs during EFT psychotherapy. Additionally, the findings suggest that there are interactions between CMEs, phases of therapy, and outcome groups. Moreover, I established that there are differences in the ways outcome groups' transition between CMEs at particular stages of therapy.;I applied both classical psychometric properties methods and Rasch modelling with the purpose of examining the CMEQ-R2's psychometrics, refining the instrument, and later applying it in a process outcome study. The results suggest that levels of CME early in therapy and changes in levels of CME over therapy-as measured by the CMEQ-R2-are significantly associated with client pre-post therapeutic improvement.;I also found firm ground for arguing that therapists can distinguish between levels of CMEs and that their perspective can be systematically analysed. Together, both instruments pose important implications for research and clinical practice. Overall, this study validates the contention that researchers and therapists should be particularly attentive to clients' manner of engagement and focus of attention on specific levels of their emotion scheme

User serviceable parts: Practice, technology, sociality and method in live electronic musicking

In live electronic musical research there is a need to confront the interrelationships between the social and the technological in order to understand our music as practice. These interrelationships form a complex and dynamic ecosystem that not only forms the context to, but is constitutive of practice. I interrogate from a variety of perspectives the musical practice that has formed over the course of this research in order to reveal the dispositions towards technology, the social situatedness and the musical approach that underlies my work. By taking a disposition towards musical practice-led research that is non-hierarchical, performative, ecological, phenomenological and pragmatic, I place into wider context compositional and technological decisions, in terms of their relationships to improvising, skill, design, performance and research. This work contributes both new theories of live electronic musical practice and new suggestions for practice-led methods aimed at investigating the interplay of social and material factors in musicking, and at interrogating the disciplinary status of our field vis-a-vis musical and technical disciplines