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In this paper, we study a heat transfer scenario in Darcy–Forchheimer porous media with variable density. The block-centered finite difference method is applied to discretize the non-isothermal flow equations governing the system. Specifically, ...

High-quality social interactions among neighbors are essential for improving individual health and community well-being. However, after urban housing reforms in China, the frequency of neighborhood interactions has significantly decreased in high-rise, ...

The class imbalance problem is one of the difficult factors affecting the performance of traditional classifiers. The oversampling technique is the most common way to solve the class imbalance problem. They alleviate the performance impact of the ...

This article investigates the problem of adaptive fixed-time optimal consensus tracking control for nonlinear multiagent systems (MASs) affected by actuator faults and input saturation. To achieve optimal control, reinforcement learning (RL) ...

Traditional routing typically relies on simpler performance metrics that can be derived directly through mathematical methods for decision-making, which often results in limited optimization outcomes. As future networks expand, along with the ...

Remote sensing object detection (RSOD) encounters challenges in effectively extracting features of small objects in remote sensing images (RSIs). To alleviate these problems, we proposed a Multi-Scale Network for Object Detection in Remote ...

• The parallel structure combining pointwise and partial convolution effectively reduce the number of parameters.
• The integration of context modeling and residual modules can effectively enhance small object features.
• The improved ...

Group activity recognition can remarkably improve the understanding of video content by analyzing human behaviors and activities in videos. We propose a random walk graph convolutional network (RWGCN) for group activity recognition. (1) ...

Tables, typically two-dimensional and structured to store large amounts of data, are essential in daily activities like database queries, spreadsheet manipulations, Web table question answering, and image table information extraction. Automating ...

The rampant use of forgery techniques poses a significant threat to the security of celebrities’ identities. Although current deepfake detection methods have shown effectiveness when dealing with specific public face forgery datasets, their ...

Secret handshake schemes allow members from the same organization to authenticate each other anonymously. After its proposal, various schemes have been introduced to achieve advanced privacy protection. Regrettably, all the schemes based on ...

• We construct the first isogeny-based secret handshake scheme.
• Our scheme is proved secure assuming the hardness of GAIP.
• The communication cost of our scheme surpasses all existing post-quantum designs.

• We propose a ZS-SBIR model based on hyperbolic neural networks.
• Hyperbolic space is more suitable for feature representation than Euclidean space.
• The domain disentanglement network effectively aligning image and sketch features.

With the advancement of zero-shot sketch-based image retrieval (ZS-SBIR) tasks, existing methods still encounter two major challenges: Euclidean space fails to effectively represent data with hierarchical structures, leading to non-discriminative ...

Bullying is currently inflicting severe harm on the personal safety and mental health of many individuals. This harm is multifaceted, impacting victims profoundly and generating negative consequences for perpetrators and the broader social ...

• Identifying bullying action in public places, while protecting privacy, using neuromorphic vision technology.
• Proposing two chaotic loss functions to increase the likelihood of the SNN converging to a global optimum during training.

Icing will not only increase the weight of the conductor to make the conductor bear greater vertical gravity and make the axial tension greater when the conductor gallops, but also increase the cross-sectional area of the conductor to increase the ...

Cirrhosis is one of the most common clinical diseases in the world. The patient with cirrhosis has many complications, such as spontaneous peritonitis, hepatic encephalopathy. Malnutrition is one of the most common complications in patients ...

Integrating energy storage systems (ESSs) into the railway power flow controller (RPFC) offers a promising path to enhance the interaction capability and connection compatibility between the railway power systems (RPSs) and the utility. Despite its ...

Semantic interaction modeling is a fundamental technology in natural language understanding that guides models to extract deep semantic information from text. Currently, the attention mechanism is one of the most effective techniques in semantic ...

As the scale of Mobile CrowdSensing (MCS) system expands, effective mobile user allocation and recruitment system design becomes crucial. Mobile users can be divided into opportunistic users and participatory ones. Most of the existing ...

• A User Recruitment problem based on User Comprehensive Capabilities (urUCC) is proposed.
• A user Location Prediction algorithm based on Deep Learning (LPDL) is proposed.
• A User Comprehensive Evaluation algorithm based on Topsis (...

Open Data Processing Services are used to solve the bottleneck of big data storage and operation. At the same time, massive trajectory data is generated, and the basic information of users’ spatio-temporal historical data is provided, including ...

• A distributed privacy protection model based on LDP is designed to resist the attacks on the third-party server.
• The market segmentation theorem is introduced to achieve personalized automatic segmentation of users.
• The idea of the ...

Multiple object tracking (MOT) has emerged as a crucial component of the rapidly developing computer vision. However, existing multi-object tracking methods often overlook the relationship between features and motion, hindering the ability to strike a ...

Gas-insulated switchgear (GIS) may be affected by mechanical stress, temperature fluctuations and other factors during operation, which may lead to insulation defects and partial discharges or even breakdowns. In this paper, the fractal antenna is ...