This paper presents a comprehensive study on predicting the performance of outdoor comfort systems using machinelearning (ML) models. The study is based on a dataset collected from various projects in Ras Al Khaimah ...
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ISBN:
(纸本)9783031686382;9783031686399
This paper presents a comprehensive study on predicting the performance of outdoor comfort systems using machinelearning (ML) models. The study is based on a dataset collected from various projects in Ras Al Khaimah (RAK), United Arab Emirates (UAE) and focuses on the prediction of temperature and humidity values. The evaluated models include Random Forest Learner, Neural Network, and Support Vector machine ( SVM), with performance assessed using key metrics. The findings of the study provide actionable insights from the data analysis process and the performance of machinelearning models. Among the models evaluated, the Random Forest Learner demonstrated superior performance in capturing the variability in the data and generating accurate predictions. The Root Mean Square Error (RMSE) for temperature was 0.838 degrees C, and for humidity, it was 1.4%, which are considered relevant for estimating comfort levels by simulating the site's data before installing the cooling controls. This highlights its potential as a reliable tool for predicting outdoor comfort system performance. Furthermore, the study proposes integrating machinelearning models into an enterprise-based decision support system for planning and managing outdoor comfort projects. By leveraging the predictive capabilities of these models, stakeholders can make informed decisions regarding system design and optimization, which helps them boost efficiency and reduce the cost of such costly projects.
Federated learning (FL) is a privacy-preserving and collaborative machinelearning approach that enables de-centralized data utilization across multiple clients. However, the performance of the global model can be com...
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Credit card fraud detection is a major challenge for the financial industry, and its prevention requires machinelearning models to be accurate and efficient in reducing financial losses. This paper proposes a compara...
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In this study,a broad range of supervised machinelearning and parametric statistical,geospatial,and non-geospatial models were applied to model both aggregated observed impact estimate data and satellite image-derive...
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In this study,a broad range of supervised machinelearning and parametric statistical,geospatial,and non-geospatial models were applied to model both aggregated observed impact estimate data and satellite image-derived geolocated building damage data for earthquakes,via regression-and classification-based models,*** the aggregated observational data,models were ranked via predictive performance of mortality,population displacement,building damage,and building destruction for 375 observations across 161 earthquakes in 61 *** the satellite image-derived data,models were ranked via classification performance(damaged/unaff ected)of 369,813 geolocated buildings for 26 earthquakes in 15 *** k-fold,3-repeat cross validation was used to ensure out-of-sample predictive *** importance of several variables used as proxies for vulnerability to disasters indicates covariate *** 2023 Türkiye-Syria earthquake event was used to explore model limitations for extreme ***,applying the AdaBoost model on the 27,032 held-out buildings of the 2023 Türkiye-Syria earthquake event,predictions had an AUC of ***,without any geospatial,building-specific,or direct satellite image information,this model accurately classified building damage,with significantly improved performance over satellite image trained models found in the literature.
machinelearning is widely applied to fault detection, diagnosis, and data reconstruction for chiller sensors but often requires domain expertise and manual intervention. Tree-based Pipeline Optimization Tool (TPOT), ...
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machinelearning is widely applied to fault detection, diagnosis, and data reconstruction for chiller sensors but often requires domain expertise and manual intervention. Tree-based Pipeline Optimization Tool (TPOT), an automated machinelearning framework, shows promise in fault detection, diagnosis, and reconstruction by automating model optimization and parameter tuning. Although the TPOT framework includes automated data preprocessing functions, it lacks the ability to automatically handle outliers. Outliers in sensor data can adversely affect the quality of the modeling process. By leveraging TPOT's capability for automated modeling, an ensemble fault diagnosis model can be developed. However, this model is prone to misdiagnosis when the sensor variables exhibit high correlations. Therefore, this study proposes an improved TPOT framework by incorporating a sliding window strategy to enhance TPOT's ability to handle outliers. The ensemble fault diagnosis model based on TPOT incorporates a Euclidean distance strategy, which identifies faulty sensors by quantifying the difference between the input data and the predicted results. Results show that the improved TPOT framework enhances fault detection, diagnosis, and data reconstruction. In the detection of sensor bias, drift, and precision degradation faults, the fault detection rates increased by a mean of 3.11 %, 4.64 %, and 8.62 %, respectively. The diagnostic strategy incorporating Euclidean distance reduced the number of misdiagnoses by one in the diagnosis of nine different sensor faults. In sensor data reconstruction, the RMSE was reduced by a mean of 68.26 %.
The exponential growth of data driven by the internet has necessitated effective extraction of insights, with big data and machinelearning standing as pivotal tools. This paper aims to provide insights into the evolv...
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The global COVID-19 pandemic led to a significant economic downturn, severely impacting financial systems and economies around the world. Widespread lockdowns and travel restrictions disrupted supply chains, forced bu...
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This study proposes an alternative approach to predict wave elevation near multi-column semi-submersible structures by applying machine-learning methods from experimental data. The most common approach to this problem...
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ISBN:
(纸本)9780791887837
This study proposes an alternative approach to predict wave elevation near multi-column semi-submersible structures by applying machine-learning methods from experimental data. The most common approach to this problem is to apply linear potential theory numerical programs to calculate the wave elevation close to such marine structures. However, in some cases, the assumptions for the potential theory are no longer valid, leading to a deviation from model test results. Another possible approach is to solve Navier Stokes EquationsNumerically (CFD), which poses a challenge regarding computational power for this kind of stochastic analysis. This paper details a procedure to apply machinelearning to enhance the results by combining potential theory and experimental results for future predictions. Aker Solutions has performed experimental tests with a TLP (Tension Leg Platform) shaped hull under waves while measuring wave elevation on several points around it. These experimental data were treated and combined with potential theory results to compose a machine-learning prediction model. A frequency domain model was applied, where the experiment data is converted into the frequency domain and combined with the Potential Theory results to train the machinelearning model. Results show that the machinelearning model improves the results for wave elevations when closer to the hull, as those are the cases where the potential theory deviates more. This approach can also be applied to similar problems, such as wave loading and vessel motions.
This study introduces an innovative framework for predicting diabetes, employing advanced imputation strategies and ensemble machinelearning techniques to boost prediction accuracy. Given the irreversible nature of d...
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Crime analysis is an important topic that uses cutting-edge machinelearning. This study focuses on using machinelearning algorithms to examine crime trends and give law enforcement organizations useful information. ...
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