Image paragraph captioning task aims to provide detailed and objective multi-sentence descriptions of a target image. Existing models suffer from the problems of the monotony of sentence structure, the mechanical repe...
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ISBN:
(数字)9781728164793
ISBN:
(纸本)9781728164809
Image paragraph captioning task aims to provide detailed and objective multi-sentence descriptions of a target image. Existing models suffer from the problems of the monotony of sentence structure, the mechanical repetition of sentence meanings and stiff inter-sentence transitions in paragraph-level descriptions. In this paper, we consider modeling human concerned evaluation criteria, namely, diversity and coherence, and use them as explicit rewards in the proposed Reinforcement Learning based training strategy. Ablation study on the standard paragraph description dataset shows the necessity of leveraging Self-critical Sequence Training strategy and the effectiveness of our novel designed reward combined with CIDEr. Final experimental results show that our model improves the current state-of-the-art model in terms of four out of six standard evaluation metrics.
Modular multilevel converter based high voltage direct current (MMC-HVDC) transmission is the mainstream technology for offshore wind farms with long distances of more than 80km integration. With the development of te...
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Given a switched system and a safe region that is a subset of the state space, a state trajectory is safe if the whole trajectory is within the safe region. The safety-critical stability problem here is to determine t...
This paper is concerned with minimum error entropy filter design for non-linear Networked control Systems (NCSs) with multiple-packet transmission mechanism. Since the error of the filter in NCSs is generally non-Gaus...
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作者:
Rolf IsermannInstitute of Automatic Control
Laboratory of Control Engineering and Process Automation Technical University of Darmstadt Landgraf-Georg-Str. 4 D-64283 Darmstadt Germany
The integration of mechanical and microelectronic components during the design and operation requires systematic methods and software tools for theoretical modeling, experimental identification and simulation. Therefo...
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The integration of mechanical and microelectronic components during the design and operation requires systematic methods and software tools for theoretical modeling, experimental identification and simulation. Therefore, the contribution summarizes the state-of-the-art in these areas based on the practical experience with several mechatronic systems and tries to show open problems. It is typical for mechatronic systems that they are composed of components from different physical domains, such as electrical mechanical, fluidic, thermal and thermodynamic processes. One of the key issues, therefore, is to find a unified way especially for theoretical modeling, but also for identification and simulation of these heterogeneous systems. A further task is to develop software tools for modeling, identification and simulation and to make them interconnectable. For theoretical modeling a unified procedure can be given for lumped parameter processes with energy and material flows. A multi port representation can be stated for processes with energy flows for electrical, mechanical and fluidic processes. However, problems with a unified representation arise for thermal and thermodynamic processes. The development from multi ports to block diagrams and bond graphs is shortly described. Present developments are characterized by object-oriented modeling with introduction of causalities at a late state. Identification methods for mechatronic systems are required frequently e.g. for theoretical model verification or on-line estimation of unknown and time varying parameters or identification of nonlinear static characteristics and dynamics. The properties of suitable methods are described, including parameter estimation and dynamical neural networks for nonlinear processes. Then, various kinds of simulation methods for mechanical systems are described, especially with regard to the time behaviour. For several applications real-time simulation is required. Examples are process simulati
A new design framework of feedforward ILC is developed for nonlinear systems in this *** supposing that there exists a desired nonlinear controller,two dynamical linearization methods are proposed for the nonlinear **...
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ISBN:
(纸本)9781467397155
A new design framework of feedforward ILC is developed for nonlinear systems in this *** supposing that there exists a desired nonlinear controller,two dynamical linearization methods are proposed for the nonlinear *** then,a CFDL-ILC and a PFDL-ILC are ***,the PFDL-ILC is similar to the higher order ILC schemes that more errors of previous iterations are *** proposed approaches are data-driven and no process model is required for the controller design and *** availability of the proposed approaches is further confirmed by simulation results.
In this study, the automatic technique for the continuous light sleep level estimation and prediction is developed. The ultimate purpose is to realize the automatic sleep level evaluation for short-term day time nap s...
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In the process of CT scanning, multi-Angle projection data needs to be obtained from a large number of projection actions, which makes the scanned individual bear the risk of high radiation exposure. In order to solve...
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We propose a novel fixed-time fuzzy control strategy to achieve the trajectory tracking of the robot systems with uncertainties in this article. The tracking errors of the system can be convergent to a small area arou...
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In this article, the consensus control issue of homogeneous multi-agent systems is studied. To reduce the negative effects brought out by random communication constraints, an event-triggered distributed predictive con...
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