Niladri Das - Academia.edu (original) (raw)
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Papers by Niladri Das
IFAC-PapersOnLine, 2020
In this paper we are concerned with the error-covariance lower-bounding problem in Kalman filteri... more In this paper we are concerned with the error-covariance lower-bounding problem in Kalman filtering: a sensor releases a set of measurements to the data fusion/estimation center, which has a perfect knowledge of the dynamic model, to allow it to estimate the states, while preventing it to estimate the states beyond a given accuracy. We propose a measurement noise manipulation scheme to ensure lower-bound on the estimation accuracy of states. Our proposed method ensures lower-bound on the steady state estimation error of Kalman filter, using mathematical tools from eigen value analysis.
IFAC-PapersOnLine, 2020
In this work we propose a framework to address the issue of state dependent nonlinear equality-co... more In this work we propose a framework to address the issue of state dependent nonlinear equality-constrained state estimation using Bayesian filtering. This framework is constructed specifically for a linear approximation of Bayesian filtering that uses the theory of Optimal Transport. As a part of this framework, we present three traditionally-used nonlinear equality constraint-preserving algorithms coupled with the Optimal Transport based filter: the equality-constrained Optimal Transport filter, the projected Optimal Transport filter, and the measurement-augmented Optimal Transport filter. In cases where the nonlinear equalityconstraints represent an arbitrary convex manifold, we show that the re-sampling step of Optimal Transport filter, can generate initial samples for filtering, from any probability distribution function defined on this manifold. We show numerical results using our proposed framework.
International Journal of Scientific Research, 2012
Performance management is the integration of performance appraisal systems with broader human re-... more Performance management is the integration of performance appraisal systems with broader human re- source systems as a means of aligning employees' work behavior with the organization's goals. Performance management should be an ongoing, interactive process designed to enhance employee capability and facilitate productivity. It is true that universities are able to respond to the challenges of the changing higher education environment and the effective management of performance at organizational, institutional and individual level is therefore critical to success. The impact of performance reward systems, such as Performance Related Pay, the role of resources in influencing educational outcomes, the reliability of existing meth- ods of assessing educational performance.
IFAC-PapersOnLine, 2020
In this paper we are concerned with the error-covariance lower-bounding problem in Kalman filteri... more In this paper we are concerned with the error-covariance lower-bounding problem in Kalman filtering: a sensor releases a set of measurements to the data fusion/estimation center, which has a perfect knowledge of the dynamic model, to allow it to estimate the states, while preventing it to estimate the states beyond a given accuracy. We propose a measurement noise manipulation scheme to ensure lower-bound on the estimation accuracy of states. Our proposed method ensures lower-bound on the steady state estimation error of Kalman filter, using mathematical tools from eigen value analysis.
IFAC-PapersOnLine, 2020
In this work we propose a framework to address the issue of state dependent nonlinear equality-co... more In this work we propose a framework to address the issue of state dependent nonlinear equality-constrained state estimation using Bayesian filtering. This framework is constructed specifically for a linear approximation of Bayesian filtering that uses the theory of Optimal Transport. As a part of this framework, we present three traditionally-used nonlinear equality constraint-preserving algorithms coupled with the Optimal Transport based filter: the equality-constrained Optimal Transport filter, the projected Optimal Transport filter, and the measurement-augmented Optimal Transport filter. In cases where the nonlinear equalityconstraints represent an arbitrary convex manifold, we show that the re-sampling step of Optimal Transport filter, can generate initial samples for filtering, from any probability distribution function defined on this manifold. We show numerical results using our proposed framework.
International Journal of Scientific Research, 2012
Performance management is the integration of performance appraisal systems with broader human re-... more Performance management is the integration of performance appraisal systems with broader human re- source systems as a means of aligning employees' work behavior with the organization's goals. Performance management should be an ongoing, interactive process designed to enhance employee capability and facilitate productivity. It is true that universities are able to respond to the challenges of the changing higher education environment and the effective management of performance at organizational, institutional and individual level is therefore critical to success. The impact of performance reward systems, such as Performance Related Pay, the role of resources in influencing educational outcomes, the reliability of existing meth- ods of assessing educational performance.