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15th International Conference on Emerging Ubiquitous Systems and Pervasive Networks / 14th International Conference on Current and Future Trends of Information and Communication Technologies in Healthcare, EUSPN/ICTH 2024

作者： Shakhovska, Nataliya Mochurad, Lesia Caro, Rosana Argyroudis, Sotirios Department of Artificial Intelligence Lviv Polytechnic National University Kniazia Romana str. 5 Lviv79905 Ukraine Department of Applied Mathematics Universytet Rolniczy Kraków31120 Poland Department of Construction and Technologies in Architecture Escuela Técnica Superior de Arquitectura Polytechnic University of Madrid Avenida Juan de Herrera 4 Madrid28040 Spain Department of Civil & Environmental Engineering Brunel University London UxbridgeUB8 3PH United Kingdom

The paper introduces the assessment model of effectiveness of surrogate model for predicting indoor air temperature in buildings using a range of machine learning techniques and optimized data sampling algorithms, with the primary objectives of enhancing prediction accuracy. The main aim is to improve the forecasting accuracy. Among the evaluated models, the SVM demonstrates the highest error rates, as evidenced by its higher mean square error (MSE), root mean square error (RMSE), and mean absolute error (MAE) values. A negative R2 value also indicates that the SVM model is performing poorly, unable to capture the underlying patterns in the data effectively. In contrast, linear regression performs significantly better, with lower error rates and an R2 value of 0.871, explaining 87.1% of the variance in the data and indicating a strong linear relationship. Gradient Boosting demonstrates excellent performance, with low error rates and a high R2 value of 0.992, which almost completely covers the variance of the data and provides highly accurate predictions. AdaBoost surpasses all other models by achieving the lowest errors. With an R2 value of 0.998, it accounts for 99.8% of the data's variance, making it the most precise model for this dataset. Overall, AdaBoost exhibits the highest accuracy with the smallest error rates and the highest R2 value, with Gradient Boosting coming in second. © 2024 The Authors.

关键词： Indoor air pollution

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Quality issues related to the design and construction stage of a project in the Indian construction industry

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Frontiers in engineering and Built Environment 2021年第2期1卷 188-202页

作者： Khan, Sharmin Saquib, Mohammad Hussain, Anwar Department of Architecture Zakir Hussain College of Engineering and Technology Aligarh Muslim University Aligarh India Department of Architecture Faculty of Architecture and Ekistics Jamia Millia Islamia New Delhi India Architecture Section University Polytechnic Faculty of Engineering and Technology Aligarh Muslim University Aligarh India

Purpose: Quality in the construction industry is an important issue yet ignored during the initial stages of the life cycle of a project, that is, the design and construction stage. The contribution of stakeholders, especially the architects is generally suspended though it has huge significance in terms of cost and time related to quality. This research endeavors to examine the issues related to the design and construction stages of the project from architects' purview, to understand the relative importance of these issues in the Indian construction industry. Design/methodology/approach: The study of qualitative data conducted formed a basis for online quantitative data collection that was further analyzed with the help of cross-tabulation and multiple correspondence analysis methods. Findings: The study concludes that the budget of a project is a corresponding factor related to quality concern for architects. The study also established that the quality issues corresponding to high budgets are closely related to the construction stage and are identified as preparation of checklist, and bidding process of hiring the contractor on the lowest bid. Research limitations/implications: The study is limited to analyzing the perspective of architects;however, other stakeholders of the construction industry may represent a different opinion. Practical implications: This research emphasizes the importance of the client's role, and need for integration and coordination among stakeholders in the construction industry for effective quality control and management. Originality/value: The research presents an exhaustive literature review on quality issues and its importance with respect to cost implications, standard practices, sustainability and the life cycle of the project. © 2021, Sharmin Khan, Mohammad Saquib and Anwar Hussain.

关键词： Coordination Integration Stakeholder Total quality management

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深度学习在无人船中的应用与挑战

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哈尔滨工程大学学报（英文版） 2023年第3期22卷 584-601页

作者：叶珺李成熙文伟松周瑞平 Vasso Reppa School of Naval Architecture Oceanand Energy Power EngineeringWuhan University of TechnologyChina Department of Industrial and Systems Engineering The Hong Kong Polytechnic UniversityHong Kong Department of Aeronautical and Aviation Engineering The Hong Kong Polytechnic UniversityHong Kong Faculty of Mechanical Maritime and Materials EngineeringDelft University of Technologythe Netherlands

Autonomous surface ships have become increasingly interesting for commercial maritime *** deep learning(DL)was proposed,surface ship autonomy was mostly *** development of artificial intelligence(AI)has prompted new challenges in the maritime industry.A detailed literature study and examination of DL applications in autonomous surface ships are still ***,this article reviews the current progress and applications of DL in the field of ship *** history of different DL methods and their application in autonomous surface ships is briefly ***,the previously published works studying DL methods in ship autonomy have been categorized into four groups,i.e.,control systems,ship navigation,monitoring system,and transportation and *** state-of-the-art of this review paper majorly lies in presenting the existing limitations and innovations of different ***,the current issues and challenges for DL application in autonomous surface ships are *** addition,we have proposed a comparative study of traditional and DL algorithms in ship autonomy and also provided the future research scope as well.

关键词： Maritime autonomous surface ships Deep learning(DL) Artificial intelligence(AI) Review

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A Novel Methodology for Identifying and Quantifying Losses in Wireless Power Transfer Systems

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IEEE Journal of Emerging and Selected Topics in Power Electronics 2025年

作者： Segatti, Giulia Wang, Li Jia, Liang Yang, Liyu Tian, Qi Ursino, Mario Lakshmikanthan, Srikanth Saggini, Stefano Polytechnic Department of Engineering and Architecture University of Udine Udine33100 Italy University of Udine Italy Google LLC 1600 Amphitheatre Parkway Mountain ViewCA94043 United States

This study proposes a novel methodology for quantifying losses in wireless power transfer systems (WPTs). By employing a circuit model derived from just three finite element simulations (FEM), it enables the separation of loss contributions from the magnetic and mechanical components across all operating conditions. This streamlined approach proves highly effective, providing a thorough analysis with minimal computational effort, thereby facilitating the optimization of the part that represents the bottleneck for this type of application. A mobile phone test case was used because the charging power is limited by the rise in temperature on the receiver. Identifying the elements responsible for significant dissipation within the receiver system via conventional measurements proves practically infeasible due to the low power levels involved. Consequently, a finite element simulation is necessary for each operating condition. After presenting and demonstrating the methodology, the study illustrates the figure of merit (FOM), which provides insight into the quality of the receiver coil, identified as the most critical element of the charging system. A case study will offer a practical example of the methodology, verified with experimental measurements. © 2013 IEEE.

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Low-carbon recycling of engineering muck through rice husk ash: A multiscale study of stabilization mechanisms

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Construction and Building Materials 2025年 483卷

作者： Jiang, Xunli Wang, Jiawei Leng, Zhen Luo, Xue Zhejiang University College of Civil Engineering and Architecture Hangzhou China Swansea University Department of Chemical Engineering Bay Campus SwanseaSA1 8EN United Kingdom The Hong Kong Polytechnic University Department of Civil and Environmental Engineering Hong Kong

With the increasing utilization of underground space, engineering muck has become a potential urban risk. This study employed a "waste-to-waste" strategy to promote its low-carbon recycling by using rice husk ash (RHA) as a stabilizer, with a focus on elucidating the stabilization mechanisms through multi-scale analysis. The results showed that RHA synergized with cement, enhancing unconfined compressive strength and water stability, while reducing the specific surface area and swelling potential of the engineering muck. The optimal RHA dosage was found to be between 4 % and 6 %, with cement content ranging from 3 % to 9 %. The multi-scale analysis demonstrated that the stabilization mechanisms of RHA-cement stabilized soil were governed by two main factors: structural enhancement and surface modification, both of which were driven by the promotion of novel hydration products through the incorporation of RHA. Specifically, the needle-like and columnar minerals effectively filled soil pores, forming a dense, robust skeletal structure that enhanced the mechanical properties of the stabilized soil. Meanwhile, the honeycomb-like C-S-H gel adhered to soil particle surfaces, repairing cracks and reinforcing interparticle bonding, thus improving the overall structural integrity. AFM analysis further revealed that the honeycomb-like C-S-H gel consisted of rod-like nanoparticles that were regularly arranged on the soil surface. This feature increased surface roughness, reduced fractal dimensions, and created a multi-scale structure of micro-papillae and nano-hairs with a "lotus leaf effect," significantly enhancing the hydrophobic properties of the soil. © 2025

关键词： Compressive strength

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Efficient Learning of Balanced Signature Graphs

Efficient Learning of Balanced Signature Graphs

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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： Gerald Matz Claudio Verardo Thomas Dittrich Institute of Telecommunications TU Wien Vienna Austria Polytechnic Department of Engineering and Architecture University of Udine Udine Italy

The novel concept of signature graphs extends signed graphs by admitting multiple types of partial similarity/agreement or dissimilarity/disagreement. Extending the concept of balancedness to signature graphs yields an explicit and efficient basis for multi-class clustering and classification. Contrary to existing two-stage approaches that consist of graph learning followed by graph clustering, we propose a one-step procedure that directly learns a perfectly clustered graph. We describe the algorithmic constituents for our approach and illustrate its superiority via numerical simulations.

关键词： Signal processing algorithms Clustering algorithms Signal processing Numerical simulation Acoustics Partitioning algorithms Classification algorithms

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A Methodological Approach for the Assessment of the Non-OSH Costs 22nd

A Methodological Approach for the Assessment of the Non-OSH ...

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22nd International Conference on Computational Science and Its Applications , ICCSA 2022

作者： Guarini, Maria Rosaria Ranieri, Rossana Tajani, Francesco Morano, Pierluigi Sica, Francesco Department of Architecture and Design "Sapienza" University of Rome Rome00196 Italy Polytechnic University of Bari Bari70126 Italy Department of Civil Environmental and Mechanical Engineering University of Trento Trento38123 Italy

ISBN: (纸本)9783031105616

Accidents at work represent, globally, a significant social and business cost for all production processes and working sectors. With a view to achieve the Sustainability Goals shared in the 2030 Agenda, it is necessary to design tools that can analyze and monitor the costs related to the accidents phenomenon, to support the Public Administration in defining effective strategies for the implementation of health and safety in the workplace and to reduce the costs related to the phenomenon of injuries. On the basis of an analysis of the literature referring to existing models used to calculate the costs of the accident phenomenon, this research proposes a methodological approach to calculate the costs incurred, both in case and in the absence of injury by the main stakeholders (worker, enterprise, state, society) with reference to four different scenarios. The methodological approach can be used to different product sectors and different geographical contexts and could be used to compare the effectiveness of different political strategies. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Sustainable development

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Experimental Study on Maximum Ceiling Temperature in Traffic Merging Section Tunnel Fires 18th

Experimental Study on Maximum Ceiling Temperature in Traffic...

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18th Conference of the Associated Research Centers for the Urban Underground Space, ACUUS 2023

作者： Li, Jiangdong Chen, Xiaofeng Luo, Chunhou Zhang, Tianhang Wu, Ke Key Laboratory of Offshore Geotechnics and Material of Zhejiang Province Zhejiang University Hangzhou China Center of Balance Architecture Zhejiang University Zhejiang Hangzhou China The Engineering Research Center of Oceanic Sensing Technology and Equipment Ministry of Education Zhejiang University Hangzhou China Research Centre for Fire Safety Engineering Department of Building Environment and Energy Engineering The Hong Kong Polytechnic University Hong Kong

ISBN: (纸本)9789819712564

In recent years, the construction of branched tunnels has increased in cities to facilitate the interconnection of urban transportation systems. However, these bifurcated sections create a complex traffic flow state, thus posing a higher fire risk. Moreover, the rapidly changing boundaries at the tunnel traffic merging section will cause a complex fire and smoke transportation behavior once a fire occurs. Previous studies have observed the lateral deflection of flames towards the sidewall under natural ventilation conditions, whereas the effect of ventilation conditions and associated temperature distribution characteristics are still unknown. In this study, the effect of inflow conditions and heat release rate (HRR) on flame behavior and temperature distribution in the tunnel traffic merging section was studied with a set of reduce-scale model experiments. Results indicate that the temperature distribution at the traffic merging section shows a strong multidimensional feature due to the coupling effect of rapidly changing boundaries and the fire buoyant-induced flow. As a result of multidimensional flame deflection, the location of the maximum temperature on the ceiling deviates from the center axis. Finally, a prediction equation to evaluate the maximum ceiling temperature is proposed by introducing confluence velocity to modify the classical plume theory. This work contributes to a more comprehensive understanding of the fire dynamic theory in bifurcated tunnels and can inform the development of effective fire safety measures. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Urban transportation

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Minimum waiting time scheduling of power supply assignation to variable rate requests ⁎

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IFAC-PapersOnLine 2024年第13期58卷 146-151页

作者： Franco Blanchini Daniele Casagrande Department of Mathematics Physics and Computer Sciences University of Udine Via delle Scienze 206 33100 Udine Italy Polytechnic Department of Engineering and Architecture University of Udine Via delle Scienze 206 33100 Udine Italy

The paper deals with a novel scheduling strategy for the assignation of a power resource. More precisely, a set of tasks, characterized by power requests with variable power rate, such as in the domestic electric appliances, is considered and the strategy aims at minimizing the average waiting time. The main result is that to determine the assignation strategy only the information on the maximum needed power and on the duration of the tasks is required. During the implementation of the strategy, the scheduler needs to periodically obtain, from the appliances, information on the maximum power needed to complete the task. In the case of two tasks, the strategy is shown, both analytically and with simulations, to perform better than a non-interruptible strategy.

关键词： Scheduling problem optimal control source assignment

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Reconstruction of the Mosul Old City by Procedural Modelling

SSRN

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SSRN 2024年

作者： Hussein, Khalid Ahmed Ismaeel, Emad Hani Ihsan, Rasheed Rebar Sadeeq, Haval Tariq Architecture Engineering Department College of Engineering Nawroz University KRD Duhok Iraq Dept. of Architecture Coll. of Engineering University of Mosul Iraq Computer and Communication Department College of Engineering Nawroz University KRD Duhok Iraq Information Technology Department Technical College of Duhok Duhok Polytechnic University KRD Region Iraq

The old city of Mosul possesses a rich built heritage, featuring distinct architectural styles evolved, incorporating indigenous knowledge and expertise to address functional, climatic, economic, and construction requirements. Tragically, during the military operations in 2016-2017, Mosul Old City experienced extensive devastation, resulting in the loss of numerous landmarks and the irreplaceable built heritage of this city. However, digitization has emerged as a potent heritage preservation and restoration tool. It serves as a vital initial step in reviving deteriorated heritage by providing invaluable information to specialists. In light of this, the present study aims to regenerate the urban facades of Mosul's old city automatically, ensuring they retain their original characteristics. This objective will be accomplished by utilizing procedural modelling techniques and algorithms incorporating specific characteristics as constraints within the regeneration process. The research makes a notable contribution to digital architectural design by employing Shape Grammar analysis to derive rules. Subsequently, these rules are implemented through Python to facilitate the automatic generation of 750 heritage facade designs. Ultimately, the study demonstrates the feasibility of using procedural modelling to recreate the decimated urban fabric, ensuring the restored structures exhibit the same formal and structural characteristics as their predecessors. © 2024, The Authors. All rights reserved.

关键词： Python

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