Speech Emotion Recognition (SER) is vital for enhancing Human-robot Interaction (HRI). In the past decade, various models have been applied to diverse datasets. However, these datasets often fell short in representing...
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ISBN:
(纸本)9798350365740;9798350365757
Speech Emotion Recognition (SER) is vital for enhancing Human-robot Interaction (HRI). In the past decade, various models have been applied to diverse datasets. However, these datasets often fell short in representing real-world scenarios. This paper introduces an innovative acoustic feature set, based on Mel Frequency Cepstral Coefficients (MFCC) and Mel-Spectrograms, applied to a combined dataset comprising RAVDESS, TESS, and EmoDB. Our proposed model achieves an impressive accuracy of 85.05% on this combined dataset, demonstrating its suitability for real-world applications. This advancement holds significant promise for improving HRI systems, affective computing, and AI-driven applications, where understanding and responding to human emotions through speech is crucial. The robustness and high accuracy of our model provide valuable insights for researchers and practitioners seeking to implement SER technology in practical, real-world settings. This study offers two primary contributions. Firstly, it involves the compilation of a unified dataset from the three mentioned sources. Secondly, it achieved the highest accuracy of 85.05%.
This paper is focused on an environment mapping application using Lego Mindstorms. The main goal is to create a program for a robot that will be able to solve problems of movement and mapping in an unknown environment...
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This paper provides a critical review of the advancements in strongly resonant all-dielectric metasurfaces, with a focus on their applications in telecommunications and life sciences. By exploring the unique propertie...
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ISBN:
(数字)9798350377323
ISBN:
(纸本)9798350377330;9798350377323
This paper provides a critical review of the advancements in strongly resonant all-dielectric metasurfaces, with a focus on their applications in telecommunications and life sciences. By exploring the unique properties of quasi-bound states in the continuum (qBIC) resonances, the paper illustrates how these metasurfaces manipulate light at the nanoscale, enabling unprecedented control and minimal energy loss. These capabilities are crucial for the development of highly efficient optical devices. The emerging applications of these metasurfaces in the development of compact and more efficient telecommunication systems and in enhancing the capabilities of biosensing technologies in life sciences are discussed. The paper aims to highlight both the remarkable potential and the challenges facing the integration of these photonic systems into practicalapplications, providing a pathway for future innovations. The paper includes some notes on a recently designed metasurface that is specifically intended for refractive index sensing and label-free biosensing. The nanostructured surface is based on complementary split-ring resonators and exhibits a very interesting numerically calculated performance. Some possible future research activities in the field are envisaged.
This paper presents a comprehensive exploration of the implementation of a finite-time control technique for wheeled mobile robots (WMRs). Finite-time control offers a promising avenue for achieving rapid and precise ...
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With the growing prevalence of service robots across various sectors, there is a growing need to ensure seamless connectivity between robots and users from virtually anywhere in the world. This demand has driven exten...
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With the growing demand for industrial automation, the application of high-performance parallel robot systems in complex operations has become increasingly important. However, these systems are often affected by unkno...
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ISBN:
(纸本)9798350386783;9798350386776
With the growing demand for industrial automation, the application of high-performance parallel robot systems in complex operations has become increasingly important. However, these systems are often affected by unknown environmental disturbances and modeling uncertainties, making precise control a significant challenge. This paper proposes an adaptive super-helical integral terminal sliding mode control strategy to address the trajectory tracking problem of parallel robots in the face of complex disturbances. First, the dynamics model of the parallel robot is detailed, and a novel controller is designed based on this model. The control strategy integrates the approach law method, the super-helical algorithm, and the integral terminal sliding mode technique to enhance the system's robustness and dynamic response speed. Simulation experiment results demonstrate that the proposed control strategy exhibits significant advantages in resisting disturbances and suppressing system vibrations compared to traditional PID control and fuzzy sliding mode control. The controller design in this study not only improves trajectory tracking accuracy but also demonstrates its potential value in practical industrial applications.
Exoskeleton technologies have numerous potential applications, ranging from improving human motor skills to aiding individuals in their daily activities. While exoskeletons are increasingly viewed, for example, as pro...
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ISBN:
(纸本)9798350384581;9798350384574
Exoskeleton technologies have numerous potential applications, ranging from improving human motor skills to aiding individuals in their daily activities. While exoskeletons are increasingly viewed, for example, as promising tools in industrial ergonomics, the effect of using them on human motor control, particularly on inter-joint coordination, remains relatively uncharted. This paper investigates the effects of generic low-amplitude force fields applied by an exoskeleton on motor strategies in asymptomatic users. The force fields mimic common perturbations encountered in exoskeletons, such as residual friction, over/under-tuned assistance, or structural elasticity. Fifty-five participants performed reaching tasks while connected to an arm exoskeleton, experiencing one of five tested force fields. Their movements before and after exposure to the exoskeleton force field were compared. The study focuses both on spatial and temporal changes in coordination using specific metrics. The results reveal that even brief exposure to a low-amplitude force field, or to uncompensated residual friction and dynamic forces, applied at the joint level can alter the inter-joint coordination, while task performance remains unaffected. The tested force fields induced varying degrees of changes in joint contributions and synchronization. This study highlights the importance of monitoring coordination changes to fully understand the impact of exoskeletons on human motor control and thus enable safe and widespread adoption of those devices.
To date, multi-robot path planning has primarily been addressed by centralized solvers, typically aiming to maintain optimality. However, given its NP-hard nature, directly applying existing solvers in large and compl...
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ISBN:
(纸本)9798350377712;9798350377705
To date, multi-robot path planning has primarily been addressed by centralized solvers, typically aiming to maintain optimality. However, given its NP-hard nature, directly applying existing solvers in large and complex scenarios proves inefficient. A promising alternative lies in adopting a divide-and-conquer strategy to break down the problem into manageable sub-problems. In this work, we propose a systematic, universal, and scalable graph partitioning method, aiming to automatically divide any real-world environment into multiple regions. Building upon this, we convert the path planning on the entire graph into distributed sub-region path planning and devise corresponding inter-regional strategies. Our work can be easily implementable in practical systems and effectively enhances the scalability of existing solvers. Experimentally, our approach contributes to a tenfold improvement in computational efficiency while only sacrificing about 10% of optimality.
With the rapid development of artificial intelligence and computer technology, Machine Vision (MV) technology has quietly and deeply affected all aspects of our lives. At the same time, Baxter robots are becoming more...
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The emergence of single-cell sequencing technologies has transformed our comprehension of cellular diversity, providing unprecedented insights into individual cell states within complex tissues. Coupled with the power...
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