We analyze users’ web browsing behavior by examining web tracking data from 2148 users in Germany, which contains 9,151,243 user visits to websites, including visit time and active seconds spent on the page, collectively spanning 49,918 unique…
Category: 7. Maths
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Model-free adaptive fixed-time prescribed performance control for PEMFC air feeding system based on oxygen excess ratio reconstruction
In this section, we first present the design of the FxTDO1 for estimating unmeasurable state variables. Following that, we outline the basic principles of FxTDO-iPI, and subsequently detail the design of the MF-AFxTPPC. Additionally, we…
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Structural analysis and multi-objective optimization of sealing structure for cryogenic liquid hydrogen triple-offset butterfly valve
Theoretical analysis
Heat transfer theory analysis
In steady-state heat transfer problems, temperature change is independent of time:
$$\frac{{\partial T}}{{\partial t}}=0$$
(1)
Discretizing the object into…
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Machine learning based dynamic trust estimation framework for Securing wireless sensor networks
In the case of autonomous WSNs where intelligent sensors monitor a wide range of environmental and physiological parameters, integrity of data collected is of great importance. However, WSNs are always vulnerable to malicious attacks like on-off…
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A comparative evaluation of multiple machine learning approaches for forecasting dengue outbreaks in Bangladesh
Feature selections
The following graph determines the most influential environmental features affecting dengue incidence, using feature selection and importance ranking methods within machine learning models. This research examines time series…
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Application of the adaptive sparrow search algorithm in medical supply engineering
Problem description
To optimize the deployment of vascular robots in clinical settings and maximize cost-effectiveness, this study leverages real surgical records from weeks 1–104 at a tertiary hospital—collected by the Jiangsu Province…
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A mathematical approach to demonstrate R to T wave concordance of the human ECG
The human heart is the integral over fibres with superposition of the left and right ventricle2. The fibres in turn are the transmural integrals over cardiac cells. Figure 1 visualises the action potential \(P(z,t)\) in 3D:
Fig. 1 Transmural…
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An innovative multi-head attention mechanism-driven recurrent neural network model with feature representation fusion for enhanced image captioning to assist individuals with visual impairments
In this manuscript, a new MARNN-FRFICP approach is proposed to assist individuals with visual impairments. The MARNN-FRFICP model aims to enhance image captioning through an effective approach focused on improving accessibility for individuals…
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An incremental adversarial training method enables timeliness and rapid new knowledge acquisition
To verify the effectiveness of the proposed method and the classification performance of the deep learning model, we conducted a systematic experiment on the epilepsy dataset. Firstly, we constructed the neural hybrid assembly network NHANet,…
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Photonics for sustainable AI | Communications Physics
The rise of embodied carbon and limits of the CMOS architectures
To provide a clear comparison of the carbon footprint of photonics and CMOS chips, we discuss the role of carbon emission during operation (Operational Carbon Footprint, OCF), and…
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