We propose a biomimetic propulsion system inspired by the spinal motor control mechanisms of zebrafish, allowing the submersible to adapt its propulsion strategy in real time based on real-time feedback from the envir...
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ISBN:
(数字)9798331534189
ISBN:
(纸本)9798331534196
We propose a biomimetic propulsion system inspired by the spinal motor control mechanisms of zebrafish, allowing the submersible to adapt its propulsion strategy in real time based on real-time feedback from the environment. The design consists of two components: a neurological model and a topological model. The topological model is derived from Navier-Stokes equations to simulate fluid dynamics, coupled with topology optimization methods to optimize the shape and surface interactions of the submersible with water. To evaluate the effectiveness of the system, we tested the system under two control conditions: open-loop configurations and closed configurations. The experimental results demonstrated that the topology and topological mod-els achieved significant improvements in energy efficiency and traversal time, compared to a control set-up. This design allows us to extend the operational range and duration of underwater vehicles, enabling more extensive and sustainable exploration of the ocean floor. This technology has far-reaching implications for ocean exploration, climate research, and underwater robotics. Moreover, the scalability of our design allows for potential applications in larger underwater vehicles as well as in multi-agent systems where multiple underwater vehicles work together.
App markets have evolved into highly competitive and dynamic environments for developers. While the traditional app life cycle involves incremental updates for feature enhancements and issue resolution, some apps devi...
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In recent years, the rapid progress in autonomous driving technology has transformed the automotive industry, positioning vehicle detection as a vital component to guarantee secure and efficient navigation. This artic...
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ISBN:
(数字)9798331530402
ISBN:
(纸本)9798331530419
In recent years, the rapid progress in autonomous driving technology has transformed the automotive industry, positioning vehicle detection as a vital component to guarantee secure and efficient navigation. This article presents an upgraded Faster R-CNN architecture that incorporates a SelfSupervised Thermal Network (SSTN) to advance vehicle detection, specifically in unfavorable weather conditions. This model is built using MobileNetV3 as its backbone and is enhanced with a Feature Pyramid Network (FPN) for extracting features at multiple scales. Additionally, it employs self-training and pseudo-labeling techniques to facilitate domain adaptation. The model is trained and tested using the DAWN dataset, which includes difficult scenarios such as fog, rain, sandstorms, and snowstorms. Experimental results demonstrate that the improved Faster R-CNN with SSTN significantly outperforms some modern methods, achieving an accuracy of 87.15%, a mean Average Precision (mAP) of 85.20%, and a recall rate of 81.37%. Although it lacks behind the traditional method like HOG-SVM. This approach enhances the reliability of vehicle detection systems in varying environmental conditions, making it a valuable contribution to the development of robust autonomous driving systems.
Cardiovascular disease continues to be a predominant cause of mortality globally, requiring precise and effective strategies for early identification. This work examines the application of clinical datasets to explore...
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ISBN:
(数字)9798331509828
ISBN:
(纸本)9798331509835
Cardiovascular disease continues to be a predominant cause of mortality globally, requiring precise and effective strategies for early identification. This work examines the application of clinical datasets to explore ensemble models and machine learning for predicting heart attacks. The dataset includes patient information about factors such as age, diabetics, levels of cholesterol, blood pressure, and smoking status. The Label Encoder is utilized to encode categorical variables, while class imbalance is tackled through the application of the Synthetic Minority Over-sampling Technique (SMOTE). The top five features were identified through the application of feature importance in Random Forest analysis. To enhance prediction accuracy, various classification techniques, including Random Forest (RF), Gradient Boosting (GB), XG Boost, and Light GBM, along with an ensemble Voting Classifier, are utilized. The best model performance was attained by intensive hyperparameter optimization using Grid Search CV. The performance of the proposed system was assessed through a stacked ensemble methodology. The Random Forest model revealed an accuracy of 87.25% and a ROC-AVC of 0.91. The results for Gradient Boosting and XG Boost showed accuracies of 85.60% and 86.80%, accompanied by ROC-AUC scores of 0.89 and 0.90, respectively. The ensemble Voting Classifier enhanced performance, reaching an accuracy of 88.15% and a ROC-AUC of 0.92. The findings indicate that utilizing an ensemble method alongside hyperparameter optimization significantly enhances prediction accuracy and facilitates the early identification of heart attack risks.
Software-defined networking (SDN) has significantly enhanced network agility by decoupling network control from hardware devices. This architectural shift exposes SDN infrastructures to increased risks from Distribute...
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Software-defined networking (SDN) has significantly enhanced network agility by decoupling network control from hardware devices. This architectural shift exposes SDN infrastructures to increased risks from Distributed Denial of Service (DDoS) attacks, which can severely disrupt network services and render them unavailable to legitimate users. Despite the existence of various techniques for detecting specific types of DDoS attacks, there remains a need for more comprehensive work capable of accurately identifying multiple attack categories. We have addressed the gap by proposing a robust DDoS attack detection method in the SDN. We utilize advanced machine learning (ML) algorithms to analyze the InSDN dataset, employing advanced feature extraction techniques to improve detection accuracy and efficiency. Three feature extraction methods, Se-lectKBest, ANOVA F-value scores, and feature importance scores from RandomForest Classifier, were used to select the best ten features from 81. This feature selection, combined with ensemble learning, achieved an accuracy of 99.9%. The Receiver Operating Characteristic (ROC) curve, confusion matrix, and K-fold cross-validation were used to evaluate the performance of the proposed model.
This paper outlines the design and implementation of a solar microgrid-specific high-gain DC-DC booster converter that makes use of a variable inductor and capacitors. To improve the suitability of photovoltaic (PV) p...
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We introduce DashSpace, a live collaborative immersive and ubiquitous analytics (IA/UA) platform designed for handheld and head-mounted Augmented/Extended Reality (AR/XR) implemented using WebXR and open standards. To...
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This research proposes an integrated framework of a digital twin, incorporating artificial intelligence and the Internet of Things to optimize energy management and prolong the lifespan of the battery in electric vehi...
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ISBN:
(数字)9798331509828
ISBN:
(纸本)9798331509835
This research proposes an integrated framework of a digital twin, incorporating artificial intelligence and the Internet of Things to optimize energy management and prolong the lifespan of the battery in electric vehicles. Under typical operating conditions, the system exhibits predictive accuracy with mean absolute error relative to actual data equal to 0.042 and root mean square error equal to 0.055. These values reflect improvement in responsiveness of the system since latency has been reduced to 0.12 seconds with feedback response times established at 0.45 seconds. Moreover, it has increased by 15% in energy efficiency while promoting its longevity with a capacity fade rate measured at 0.0025% per cycle. Besides, the model shows strong anomaly detection capability - maintenance alert precision is found to be 95% while detection rate reaches76%. All these results point out the possibility that combining Digital Twin technology with AI and IoT may end up significantly boosting energy management systems for electric vehicles compared to more traditional approaches.
This paper presents StreamTag, a platform designed for the efficient management of labeled data in healthcare environments, particularly for activity recognition systems in residential and nursing home settings. Human...
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Advancements in multi-agent systems (MAS) have enabled swarm-based systems to perform decentralized decision-making and autonomous tasks. However, optimizing their performance while ensuring transparency and interpret...
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