this paper introduces e-Cattie, a novel quadrupedal robotic system equipped for climbing and traversing surfaces of various inclinations and roughness, from planar terrains to vertical walls and even upside-down surfa...
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ISBN:
(数字)9798331509293
ISBN:
(纸本)9798331509309
this paper introduces e-Cattie, a novel quadrupedal robotic system equipped for climbing and traversing surfaces of various inclinations and roughness, from planar terrains to vertical walls and even upside-down surfaces. designed with autonomy and versatility at its core, e-Cattie is inspired by the agility and climbing prowess of cats, embodying dynamic posture and gait adaptability to meet diverse operational needs while maintaining significant payload capacity. the system integrates three key components: a highly agile quadrupedal robotic module, a vacuum system for effective surface attachment, and an innovative suction cup module for secure and adaptable surface adhesion. Experimental evaluations demonstrate e-Cattie's capabilities in walking and climbing across different inclinations, highlighting its potential in maintenance, surveillance, and search-and-rescue applications. the experiments further assess the robot's efficiency with respect to the holding force across all orientations, showcasing the practical implications of its design for real-world applications. e-Cattie's introduction marks a significant step towards developing autonomous robotic systems capable of navigating challenging terrains, paving the way for future advancements in robotic climbing and traversal technologies.
Future prediction is a branch of information processing. An attempt to predict some future event year is presented in this work via combining the addition-subtraction frequency (ASF) method, i.e., ASF algorithms with ...
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Elephants are a quintessential animal for zoos and wildlife parks. these zoo-housed animals serve as ambassadors to educate the public about their respective species as well as wildlife more broadly. As with any zoo-h...
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ISBN:
(纸本)9798400711756
Elephants are a quintessential animal for zoos and wildlife parks. these zoo-housed animals serve as ambassadors to educate the public about their respective species as well as wildlife more broadly. As with any zoo-housed animal, physical and cognitive engagement and exercise are crucially important to the well-being of zoo-housed elephants. A key component of cognitive stimulation for elephants is a complex and variable environment. We designed and deployed an instrumented enrichment device for African elephants (Loxodonta africana) at Zoo Atlanta, augmenting their existing foodbased environmental enrichment with audio cognitive enrichment. To gauge elephant interest in our device, we compared usage of the existing food-based enrichment before and after augmentation with audio. the device was installed for 7 days and 10 hours and had a positive impact on frequency and retention time withthe existing enrichment, increasing frequency of usage by 81 instances and retention time by 3 hours, 28 minutes, and 23 seconds. While our audio enrichment device was successful at collecting data with 88.14% accuracy, improvements could be made to the sensing methods to reduce the rate of false actuations. Overall, the study is an example of successfully collecting longitudinal data with elephants and showed that these elephants responded positively to sound enrichment.
Withthe rapid emergence of the Internet of Vehicles (IoV) and 6G networks, the exponential growth in data traffic has presented a formidable challenge to the limited computational capabilities of in-vehicle devices. ...
Withthe rapid emergence of the Internet of Vehicles (IoV) and 6G networks, the exponential growth in data traffic has presented a formidable challenge to the limited computational capabilities of in-vehicle devices. To overcome this challenge, mobile edge computing (MEC) offers a viable solution by offloading computationally intensive tasks to the edge servers. In this study, we design a novel joint optimization approach that leverages deep reinforcement learning (DRL) to inform decisions on computational offloading, energy consumption, and resource allocation. Our proposed scheme considers the involvement of boththe base station (BS) and road side units (RSUs) in providing computing resources to the user while simultaneously minimizing energy consumption and reducing latency of computational tasks. Our simulations unequivocally establish the efficacy of the Deep Reinforcement Learning-based computing offloading and resource allocation (DCORA) algorithm. the proposed DCORA algorithm outperforms alternative baseline schemes by approximately 15% in direct comparison.
under the new mode of “Internet +”, the advantages of information technology such as the Internet are used to escort innovation and entrepreneurship activities. this new mode is conducive to promoting the developmen...
under the new mode of “Internet +”, the advantages of information technology such as the Internet are used to escort innovation and entrepreneurship activities. this new mode is conducive to promoting the development of innovation and entrepreneurship. In view of the needs of the innovation and entrepreneurship service platform of Foshan Software Park, the technical framework and implementation approach of the innovation and entrepreneurship service platform are studied and formulated. the new generation of science and technology, combined with intelligent cluster technology, plug-in development technology, service-oriented SOA architecture, web service technology and GIS technology, are used to build an innovation and entrepreneurship public service platform for the government and enterprises and institutions in the district, and provide services around the construction of the platform.
Neurofeedback (NFB) and Brain-computer Interface (BCI) research seldom present within-session individual learning dynamics. this is even though a large proportion of NFB and BCI users cannot learn neural self-regulati...
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Neurofeedback (NFB) and Brain-computer Interface (BCI) research seldom present within-session individual learning dynamics. this is even though a large proportion of NFB and BCI users cannot learn neural self-regulation required to control the feedback. Understanding the time course and learning variability between participants might allow us to design better NFB and BCI protocols to promote learning of neural self-regulation. the importance of developing novel NFB and BCI protocols becomes apparent, considering the clinical utility of these techniques. Tuning the brain to perform optimally could provide for long-term non-pharmacological treatment without any drug-associated side effects. this paper reports the strategies used by participants and the individual dynamics of central Beta NFB downregulation training and associated mental strategies for nine participants. the results showed that all participants could learn to downregulate their central Beta power in a single session, however, the dynamics of learning differed between participants. We visually identified two learning dynamics; 1) a continual decrease in Beta power and 2) an initial decrease followed by a stable level of Beta power. Topographic plots indicated high spatial variability in Beta power decreases in participants. Responses from end-of-session debriefing indicated that all participants felt they could control the feedback. Although participants could control the feedback, an optimal mental strategy for controlling central Beta power was not revealed.
Handwritten digit recognition is a significant challenge in the field of machine learning, particularly for pattern recognition and computer vision applications. It has found applications in various areas, such as ide...
Handwritten digit recognition is a significant challenge in the field of machine learning, particularly for pattern recognition and computer vision applications. It has found applications in various areas, such as identifying digits on utility maps, postal mail zip codes, bank check amounts, and more. Offline handwritten digits possess distinct characteristics, including size, orientation, position, and thickness. Each person's handwriting is unique, making the classification process more difficult. Additionally, the high similarity between certain digits and the over fitting problem with high-dimensional data can increase computational time and cost. Consequently, numerous researchers have developed and implemented different machine learning algorithms to effectively address the issue of recognizing handwritten digits. this paper introduces a novel approach to improve the classification performance and accuracy of handwritten digit recognition. the proposed method utilizes an ensemble majority vote classifier, which combines three classifiers in each experiment by utilizing a range of different algorithms; Naïve Bayes (NB), Adaptive Boosting Algorithm (AdaBoost), K-Nearest Neighbors (K-NN), Multi-layer Perceptron Classifier (MLP), eXtreme Gradient Boosting algorithm (XGBoost), and Decision Tree Algorithm (DT) to form a single ensemble classifier. To validate the approach, we used the MINST free public handwritten dataset, to ascertain the classifier withthe highest rate of accuracy in this study. the results obtained from the experiments demonstrated that the full performance of Ensemble model classifiers MLP, XGBOOST, and DT is superior to AdaBoost, K-NN, and NB. It achieved the highest accuracy level, reaching 98% in the experiment. the experimental results of this research showed that the recognition accuracy was improved compared to previous works.
Malaria, a life-threatening mosquito-borne disease, contributes to a significantly high number of fatalities in tropical/sub-tropical regions due to inadequate detection technology, lack of laboratory experience, and ...
Malaria, a life-threatening mosquito-borne disease, contributes to a significantly high number of fatalities in tropical/sub-tropical regions due to inadequate detection technology, lack of laboratory experience, and other barriers. From the design perspective of a general-purpose point-of-care solution for detecting malaria along with other tropical diseases, malaria parasite detection from blood work needs to integrate accurate and fast detection capabilities. In this vein, in this paper, we develop three hybrid data-driven models in this paper that combine a convolutional neural network (CNN) with long short-term memory (LSTM), bi-directional LSTM (BiLSTM), and gated recurrent unit (GRU), respectively. CNN is employed in all three proposed models to extract the relevant features that are passed to two cascaded layers of Recurrent Neural Networks (RNNs) in each model that acts as a classifier. Based on the experiments conducted with a public dataset, we demonstrate that our designed CNN-GRU-GRU hybrid model outperformed the other models in terms of accuracy (96.01%), less type-I error rate (1.81%), and type-II error rate (2.18%). On the other hand, the CNN-LSTM-LSTM model was attributed to a low computing (training) time of just 4 minutes and 46 seconds. Our findings clearly elucidate the potential of combining classifiers in biomedical analytics research and pave the way for portable point-of-care devices with reasonable accuracy and fast computation times, enabling them to be used for collaborative learning for large-scale, real-time disease modeling.
Retinal vessel segmentation has been widely applied in ophthalmic disease diagnosis. However, current deep-learning-based vessel segmentation methods still suffer from disconnected vessel structures. they struggle wit...
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Currently, there exist several open-source computer vision libraries designed for human pose estimation from photos and videos. they are mainly focused on the possibility of detecting individuals in the image and retu...
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ISBN:
(纸本)9781665426053
Currently, there exist several open-source computer vision libraries designed for human pose estimation from photos and videos. they are mainly focused on the possibility of detecting individuals in the image and returning their skeleton determinants. An often overlooked or underdeveloped functionality is tracking the trajectory of the detected people, which presents a serious problem in the process of design automated video surveillance systems. In this work, the author attempts to develop an algorithm for tracking multiple human poses in real-time, based on simple decision filters. the developed solution is designed to work with keypoints obtained from a selected open-source human poses recognition library. the author reveals details related to the method of processing and analysing obtained keypoints, describes the concept of decision filters and presents the results of the software implementation.
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