Grain-size is the most fundamental property of sediment particles, its analysis is essential to understand sediment provenance, transport history and depositional conditions. In the ambit of environmental monitoring a...
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Efficient skill acquisition, representation, and on-line adaptation to different scenarios has become of fundamental importance for assistive robotic applications. In the past decade, dynamical systems (DS) have arise...
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ISBN:
(纸本)9781538680940
Efficient skill acquisition, representation, and on-line adaptation to different scenarios has become of fundamental importance for assistive robotic applications. In the past decade, dynamical systems (DS) have arisen as a flexible and robust tool to represent learned skills and to generate motion trajectories. This work presents a novel approach to incrementally modify the dynamics of a generic autonomous DS when new demonstrations of a task are provided. A control input is learned from demonstrations to modify the trajectory of the system while preserving the stability properties of the reshaped DS. Learning is performed incrementally through Gaussian process regression, increasing the robot's knowledge of the skill every time a new demonstration is provided. The effectiveness of the proposed approach is demonstrated with experiments on a publicly available dataset of complex motions.
The current input-output table takes about 4 years from the start of the survey to the release, it is not suitable for analysis of real-time industries, and it takes a lot of labor to create. In order to solve this pr...
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ISBN:
(纸本)9781538626337
The current input-output table takes about 4 years from the start of the survey to the release, it is not suitable for analysis of real-time industries, and it takes a lot of labor to create. In order to solve this problem, the input-output table is being constructed using the corporate data possessed by Teikoku Databank (TDB) Co., Ltd. However, since the calculation of private consumption is based on the total sales of (BtoC) companies that are selling to consumers, it is not possible to record in the spent where it was consumed. Therefore, in this research, we estimate the sales ratio to consumers in the BtoC company and calculate the total sales amount to consumers in the sales of the company. Also, by dividing the total of the private consumption obtained proportionally according to the population size of each region, we construct an algorithm to calculate private consumption in each region.
The authors propose an adaptive control method for a continuous-time linear stochastic system with unobserved finite-state jump-Markov parameters (meaning that the parameters constitute a Markov process evolving on a ...
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ISBN:
(纸本)0780304500
The authors propose an adaptive control method for a continuous-time linear stochastic system with unobserved finite-state jump-Markov parameters (meaning that the parameters constitute a Markov process evolving on a finite set), also called a linear hybrid system. It is assumed that the system is time-independent and that the states of the system are completely observed. By applying the optimal nonlinear filter, the parameters are estimated based on observations of the output. A class of adaptive state feedback algorithms, dependent on the nonlinear filter output, is proposed, and a Lyapunov function argument shows that under certain conditions, for any finite initial probability distribution, the resulting system is stochastically stable. In addition, it is proved that, with any (stochastically) stabilizing adaptive state feedback, the system is weakly controllable (accessible) for any initial condition. Stochastic stability, for any homogeneous diffusion process, implies that there exists an invariant probability distribution for the process, unique with respect to the initial condition. Moreover, it is proved that weak controllability results in the ergodicity of the process for every initial condition.
Determination of the feeder configuration involving the switch statuses is essential for the operation in the distribution system. MW loss minimization is crucial if the system is normal. This paper presents a method ...
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ISBN:
(纸本)0780379896
Determination of the feeder configuration involving the switch statuses is essential for the operation in the distribution system. MW loss minimization is crucial if the system is normal. This paper presents a method based on genetic algorithms (GAs) using a vertex encoding/decoding to determine the network configuration. The vertex based Prufer number is used in GAs for encoding/decoding the chromosomes (strings). The Prufer number ensures that the system structure will be radial for the distribution system. The simulation results from a 33-bus system are used to show the applicability of the proposed method.
Mammography is a medical imaging technique that combines, low-dose radiation and high-contrast, high-resolution film for examination of the breast and screening for breast cancer. This paper proposes a Random Forest D...
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