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383 Results Found

  • Article
  • Open Access
7 Citations
4,931 Views
19 Pages

Sales Forecasting with LSTM, Custom Loss Function, and Hyperparameter Optimization: A Case Study

  • Hyasseliny A. Hurtado-Mora,
  • Alejandro H. García-Ruiz,
  • Roberto Pichardo-Ramírez,
  • Luis J. González-del-Ángel and
  • Luis A. Herrera-Barajas

31 October 2024

Forecasting sales trends is a valuable activity for companies of all types and sizes, as it enables more efficient decision making to avoid unnecessary expenses from excess inventory or, conversely, losses due to insufficient inventory to meet demand...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
22 Citations
5,040 Views
29 Pages

7 February 2024

The advancement of machine learning in industrial applications has necessitated the development of tailored solutions to address specific challenges, particularly in multi-class classification tasks. This study delves into the customization of loss f...

(This article belongs to the Section Fault Diagnosis & Sensors)
  • Article
  • Open Access
17 Citations
3,085 Views
15 Pages

29 September 2024

Day-ahead electricity price forecasting (DAEPF) is vital for participants in energy markets, particularly in regions with high integration of renewable energy sources (RESs), where price volatility poses significant challenges. The accurate forecasti...

(This article belongs to the Section C: Energy Economics and Policy)
  • Feature Paper
  • Article
  • Open Access
285 Views
18 Pages

4 September 2026

We derive the joint probability-generating function of the number of customers served and the number of customers lost in busy periods of MX/M/1/n queueing systems with balking. Capitalizing on the Markov-regenerative nature of these systems, we prop...

(This article belongs to the Section D: Statistics and Operational Research)
  • Article
  • Open Access
6 Citations
4,682 Views
21 Pages

A New Loss Function for Enhancing Peak Prediction in Time Series Data with High Variability

  • Mahan Hajiabbasi Somehsaraie,
  • Soheyla Tofighi,
  • Zhaoan Wang,
  • Jun Wang and
  • Shaoping Xiao

Time series models are considered among the most intricate models in machine learning. Due to sharp temporal variations, time series models normally fall short in predicting the peaks or local minima accurately. To overcome this challenge, we propose...

(This article belongs to the Special Issue Feature Papers of Forecasting 2025)
  • Article
  • Open Access
54 Citations
7,015 Views
16 Pages

Convolution Network with Custom Loss Function for the Denoising of Low SNR Raman Spectra

  • Sinead Barton,
  • Salaheddin Alakkari,
  • Kevin O’Dwyer,
  • Tomas Ward and
  • Bryan Hennelly

6 July 2021

Raman spectroscopy is a powerful diagnostic tool in biomedical science, whereby different disease groups can be classified based on subtle differences in the cell or tissue spectra. A key component in the classification of Raman spectra is the applic...

(This article belongs to the Special Issue State-of-the-Art Sensors Technologies in Ireland 2020)
  • Article
  • Open Access
9 Citations
3,317 Views
17 Pages

Deep Learning-Based Adaptive Remedial Action Scheme with Security Margin for Renewable-Dominated Power Grids

  • Yinfeng Zhao,
  • Shutang You,
  • Mirka Mandich,
  • Lin Zhu and ,
  • Chengwen Zhang,
  • Hongyu Li,
  • Yu Su,
  • Chujie Zeng,
  • Yi Zhao and
  • Jin Tan
  • + 9 authors+ 4 authors

12 October 2021

The Remedial Action Scheme (RAS) is designed to take corrective actions after detecting predetermined conditions to maintain system transient stability in large interconnected power grids. However, since RAS is usually designed based on a few selecte...

(This article belongs to the Special Issue Advances in Power System Stability and Control)
  • Article
  • Open Access
12 Citations
3,853 Views
17 Pages

GAN-Based Novel Approach for Generating Synthetic Medical Tabular Data

  • Rashid Nasimov,
  • Nigorakhon Nasimova,
  • Sanjar Mirzakhalilov,
  • Gul Tokdemir and ,
  • Mohammad Rizwan,
  • Akmalbek Abdusalomov and
  • Young-Im Cho
  • + 2 authors+ 0 author

The generation of synthetic medical data has become a focal point for researchers, driven by the increasing demand for privacy-preserving solutions. While existing generative methods heavily rely on real datasets for training, access to such data is...

(This article belongs to the Special Issue Medical Artificial Intelligence and Data Analysis)
  • Article
  • Open Access
49 Citations
7,823 Views
18 Pages

10 January 2022

Physics-informed machine learning is emerging through vast methodologies and in various applications. This paper discovers physics-based custom loss functions as an implementable solution to additive manufacturing (AM). Specifically, laser metal depo...

(This article belongs to the Special Issue Sensing and Analytics for Smart Complex Systems)
  • Article
  • Open Access
7 Citations
3,232 Views
17 Pages

18 May 2022

Particulate matter has become one of the major issues in environmental sustainability, and its accurate measurement has grown in importance recently. Low-cost sensors (LCS) have been widely used to measure particulate concentration, but concerns abou...

(This article belongs to the Section Environmental Sustainability and Applications)
  • Article
  • Open Access
31 Citations
7,231 Views
25 Pages

Pix2pix Conditional Generative Adversarial Network with MLP Loss Function for Cloud Removal in a Cropland Time Series

  • Luiz E. Christovam,
  • Milton H. Shimabukuro,
  • Maria de Lourdes B. T. Galo and
  • Eija Honkavaara

29 December 2021

Clouds are one of the major limitations to crop monitoring using optical satellite images. Despite all efforts to provide decision-makers with high-quality agricultural statistics, there is still a lack of techniques to optimally process satellite im...

(This article belongs to the Special Issue Deep Learning-Based Cloud Detection for Remote Sensing Images)
  • Article
  • Open Access
13 Citations
5,368 Views
18 Pages

Hybrid CNN-LSTM Model with Custom Activation and Loss Functions for Predicting Fan Actuator States in Smart Greenhouses

  • Gregorius Airlangga,
  • Julius Bata,
  • Oskar Ika Adi Nugroho and
  • Boby Hartanto Pramudita Lim

Smart greenhouses rely on precise environmental control to optimize crop yields and resource efficiency. In this study, we propose a novel hybrid Convolutional Neural Network (CNN) and Long Short-Term Memory (LSTM) architecture to predict fan actuato...

  • Article
  • Open Access
1 Citations
1,763 Views
19 Pages

In the era of rapid technological advancement and ever-increasing data availability, the field of risk modeling faces both unprecedented challenges and opportunities. Traditional risk modeling approaches, while robust, often struggle to capture the c...

(This article belongs to the Section Financial Technology and Innovation)
  • Article
  • Open Access
2 Citations
3,088 Views
23 Pages

Beyond Standard Losses: Redefining Text-to-SQL with Task-Specific Optimization

  • Iker Azurmendi,
  • Ekaitz Zulueta,
  • Gustavo García,
  • Nekane Uriarte-Arrazola and
  • Jose Manuel Lopez-Guede

20 July 2025

In recent years, large language models (LLMs) have shown an impressive ability in translating text to SQL queries. However, in real-world applications, standard loss functions frequently fail to capture the complexity of queries adequately. Therefore...

  • Article
  • Open Access
4 Citations
3,185 Views
15 Pages

22 January 2020

This paper presents an efficient strategy for transformer planning to reduce the system losses by means of transformer rearrangement. The customer connected to the distribution transformer are first investigated by the field survey, and the loads of...

  • Article
  • Open Access
432 Views
25 Pages

This paper investigates an M/M/1 queueing system with differentiated vacations, threshold-based interruptions, and customer impatience in the form of balking and reneging. Using recursive analytical methods, we derive closed-form steady-state probabi...

(This article belongs to the Section Computational Engineering)
  • Article
  • Open Access
11 Citations
3,375 Views
16 Pages

29 October 2021

We study a phenomenon causing server time loss in ticket queues with balking and calling time. A customer who balks from the queue after printing a ticket leaves a virtual entity in the queue that requires server time to be cleared. The longer the qu...

  • Article
  • Open Access
19 Citations
6,485 Views
13 Pages

Boosting Iris Recognition by Margin-Based Loss Functions

  • Reihan Alinia Lat,
  • Sebelan Danishvar,
  • Hamed Heravi and
  • Morad Danishvar

29 March 2022

In recent years, the topic of contactless biometric identification has gained considerable traction due to the COVID-19 pandemic. One of the most well-known identification technologies is iris recognition. Determining the classification threshold for...

(This article belongs to the Section Algorithms for Multidisciplinary Applications)
  • Article
  • Open Access
17 Citations
9,076 Views
16 Pages

BIoU: An Improved Bounding Box Regression for Object Detection

  • Niranjan Ravi,
  • Sami Naqvi and
  • Mohamed El-Sharkawy

Object detection is a predominant challenge in computer vision and image processing to detect instances of objects of various classes within an image or video. Recently, a new domain of vehicular platforms, e-scooters, has been widely used across dom...

(This article belongs to the Special Issue Advances in Embedded Artificial Intelligence and Internet-of-Things)
  • Article
  • Open Access
2 Citations
1,611 Views
22 Pages

12 January 2026

Flash flood events are some of the most life-threatening natural disasters, so it is important to predict extreme rainfall events effectively. This study introduces an LSTM model that utilizes a customized loss function to effectively predict extreme...

(This article belongs to the Section Hydrology)
  • Article
  • Open Access
2 Citations
2,577 Views
20 Pages

3 March 2025

Vision-based inspection systems are essential for quality control in manufacturing industries, and advances in artificial intelligence (AI) have significantly enhanced their accuracy. However, the high-precision requirements of products such as conta...

(This article belongs to the Special Issue Advanced Image Analysis and Processing Technologies and Applications)
  • Article
  • Open Access
4 Citations
3,517 Views
24 Pages

Identifying road surface cracks by semantic segmentation is a difficult problem. This is because segmentation typically detects objects by area, whereas cracks are string-like. Conventional loss functions such as Binary Cross-Entropy (BCE), Dice, and...

  • Article
  • Open Access
4 Citations
3,402 Views
18 Pages

Modeling and Estimation of Traffic Intensity in M/M/1 Queueing System with Balking: Classical and Bayesian Approaches

  • Bhaskar Kushvaha,
  • Dhruba Das,
  • Asmita Tamuli,
  • Dibyajyoti Bora and ,
  • Mrinal Deka and
  • Amit Choudhury
  • + 1 author+ 0 author

This article focuses on both classical and Bayesian inference of traffic intensity in a single-server Markovian queueing model considering balking. To reflect real-world situations, the article introduces the concept of balking, where customers opt n...

  • Feature Paper
  • Article
  • Open Access
13 Citations
4,235 Views
22 Pages

Analysis of a Discrete-Time Queueing Model with Disasters

  • Mustafa Demircioglu,
  • Herwig Bruneel and
  • Sabine Wittevrongel

17 December 2021

Queueing models with disasters can be used to evaluate the impact of a breakdown or a system reset in a service facility. In this paper, we consider a discrete-time single-server queueing system with general independent arrivals and general independe...

(This article belongs to the Special Issue Recent Research in Queuing Theory and Stochastic Models)
  • Article
  • Open Access
32 Citations
6,230 Views
25 Pages

Queuing System with Two Types of Customers and Dynamic Change of a Priority

  • Valentina Klimenok,
  • Alexander Dudin,
  • Olga Dudina and
  • Irina Kochetkova

The use of priorities allows us to improve the quality of service of inhomogeneous customers in telecommunication networks, inventory and health-care systems. An important modern direction of research is to analyze systems in which priority of a cust...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
293 Views
38 Pages

25 September 2026

Faced with capacity-demand mismatch and customer churn during order surges in instant delivery, selective vehicle routing provides a promising alternative by actively rejecting low-value orders instead of passively accepting all requests. This study...

  • Article
  • Open Access
21 Citations
6,092 Views
19 Pages

Robust Human Face Emotion Classification Using Triplet-Loss-Based Deep CNN Features and SVM

  • Irfan Haider,
  • Hyung-Jeong Yang,
  • Guee-Sang Lee and
  • Soo-Hyung Kim

15 May 2023

Human facial emotion detection is one of the challenging tasks in computer vision. Owing to high inter-class variance, it is hard for machine learning models to predict facial emotions accurately. Moreover, a person with several facial emotions incre...

(This article belongs to the Special Issue Sensor Based Multi-Modal Emotion Recognition)
  • Article
  • Open Access
1 Citations
753 Views
20 Pages

Classification of Retinal OCT Images on an Imbalanced Dataset Using a Swin Transformer

  • Paweł Borkowski,
  • Marian Wysocki,
  • Andrzej Grzybowski and
  • Anna Wiśniewska-Borkowska

2 July 2026

Small and severely imbalanced optical coherence tomography (OCT) datasets pose a major challenge for deep learning algorithms while reflecting the reality of smaller ophthalmology centers, where rare retinal pathologies such as retinal artery occlusi...

(This article belongs to the Special Issue Object Detection and Image Processing Based on Computer Vision)
  • Article
  • Open Access
1 Citations
1,642 Views
23 Pages

8 May 2025

The purpose of infrared and visible image fusion is to generate a composite image that can contain both the thermal radiation profile information of the infrared image and the texture details of the visible image. This kind of composite image can be...

  • Article
  • Open Access
1 Citations
2,868 Views
13 Pages

This study investigates M/M/n:(m/FIFO) systems with a limited queue capacity (incorporating both “waiting and rejection”). This category of systems can be considered to be mixed-service systems. They operate as queuing systems for custome...

  • Article
  • Open Access
131 Citations
10,264 Views
20 Pages

Monkeypox Detection Using CNN with Transfer Learning

  • Murat Altun,
  • Hüseyin Gürüler,
  • Osman Özkaraca,
  • Faheem Khan and ,
  • Jawad Khan and
  • Youngmoon Lee
  • + 1 author+ 0 author

5 February 2023

Monkeypox disease is caused by a virus that causes lesions on the skin and has been observed on the African continent in the past years. The fatal consequences caused by virus infections after the COVID pandemic have caused fear and panic among the p...

(This article belongs to the Special Issue Sensor Data Fusion Based on Deep Learning for Computer Vision and Medical Applications II)
  • Article
  • Open Access
1 Citations
2,097 Views
12 Pages

Primary and Revision Reverse Shoulder Arthroplasty Using Custom-Made 3D-Printed Baseplates for Severe Multiplanar Glenoid Bone Defects: A Retrospective Study of Clinical and Radiographic Outcomes

  • Giovanni Merolla,
  • Francesco De Filippo,
  • Fabiana Magrini Pasquinelli,
  • Gian Mario Micheloni and ,
  • Giuseppe Porcellini,
  • Paolo Paladini and
  • Roberto Castricini
  • + 2 authors+ 0 author

30 August 2025

Background: Severe glenoid bone loss presents a major challenge in both primary and revision reverse shoulder arthroplasty (RSA). Standard implants often fail to achieve reliable fixation in these cases. Custom-made, 3D-printed glenoid components hav...

(This article belongs to the Section Orthopedics)
  • Article
  • Open Access
3,255 Views
13 Pages

A New Loss Function for Simultaneous Object Localization and Classification

  • Ander Sanchez-Chica,
  • Beñat Ugartemendia-Telleria,
  • Ekaitz Zulueta,
  • Unai Fernandez-Gamiz and
  • Javier Maria Gomez-Hidalgo

1 March 2023

Robots play a pivotal role in the manufacturing industry. This has led to the development of computer vision. Since AlexNet won ILSVRC, convolutional neural networks (CNNs) have achieved state-of-the-art status in this area. In this work, a novel met...

(This article belongs to the Special Issue Modeling and Optimization of Complex Engineering Systems under Uncertainties)
  • Article
  • Open Access
24 Citations
5,385 Views
16 Pages

An Optimal Energy-Saving Strategy for Home Energy Management Systems with Bounded Customer Rationality

  • Guoying Lin,
  • Yuyao Yang,
  • Feng Pan,
  • Sijian Zhang and ,
  • Fen Wang and
  • Shuai Fan
  • + 1 author+ 0 author

With the development of techniques, such as the Internet of Things (IoT) and edge computing, home energy management systems (HEMS) have been widely implemented to improve the electric energy efficiency of customers. In order to automatically optimize...

  • Article
  • Open Access
13 Citations
2,859 Views
18 Pages

25 June 2024

Previous studies have primarily focused on predicting the remaining useful life (RUL) of tools as an independent process. However, the RUL of a tool is closely related to its wear stage. In light of this, a multi-task joint learning model based on a...

(This article belongs to the Section Industrial Sensors)
  • Article
  • Open Access
113 Citations
16,477 Views
21 Pages

Deep Learning with Dynamically Weighted Loss Function for Sensor-Based Prognostics and Health Management

  • Divish Rengasamy,
  • Mina Jafari,
  • Benjamin Rothwell,
  • Xin Chen and
  • Grazziela P. Figueredo

28 January 2020

Deep learning has been employed to prognostic and health management of automotive and aerospace with promising results. Literature in this area has revealed that most contributions regarding deep learning is largely focused on the model’s archi...

(This article belongs to the Section Intelligent Sensors)
  • Article
  • Open Access
2 Citations
2,326 Views
25 Pages

31 January 2025

In the dual-channel retail industry, excessive enthusiasm in offline retailers’ services often extends beyond the customer’s “interpersonal distance zone”, leading to psychological discomfort for customers and a subsequent los...

(This article belongs to the Special Issue Complex Systems for E-Commerce and Business Management)
  • Article
  • Open Access
47 Citations
4,253 Views
20 Pages

7 December 2021

One of the strategic objectives of the European Union is a reduction in greenhouse gas emissions and improvement of energy efficiency by at least 32.5% in different areas of the economy by 2030. However, little is known about the impact of payment in...

(This article belongs to the Special Issue Energy Management and Economics Analyses)
  • Article
  • Open Access
2 Citations
2,582 Views
32 Pages

6 March 2026

Road safety depends heavily on the timely identification and repair of potholes; however, detecting potholes is challenging due to various lighting and weather conditions. This work presents an attention-enhanced object detection framework for aerial...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
15 Citations
6,955 Views
30 Pages

21 November 2024

Road traffic crashes pose significant economic and public health burdens, necessitating an in-depth understanding of crash causation and its links to underlying factors. This study introduces a machine learning-based hurdle model framework tailored f...

(This article belongs to the Section Transportation and Future Mobility)
  • Article
  • Open Access
5 Citations
2,514 Views
18 Pages

Medical image segmentation is crucial for clinical applications, but challenges persist due to noise and variability. In particular, accurate glottis segmentation from high-speed videos is vital for voice research and diagnostics. Manual searching fo...

(This article belongs to the Section Biosignal Processing)
  • Article
  • Open Access
16 Citations
3,111 Views
10 Pages

Custom-Made Implants in Ankle Bone Loss: A Retrospective Assessment of Reconstruction/Arthrodesis in Sequelae of Septic Non-Union of the Tibial Pilon

  • Silvio Caravelli,
  • Giuseppe Ambrosino,
  • Emanuele Vocale,
  • Marco Di Ponte and ,
  • Giulia Puccetti,
  • Carlo Perisano,
  • Tommaso Greco,
  • Vito Gaetano Rinaldi,
  • Giulio Maria Marcheggiani Muccioli and
  • Massimiliano Mosca
  • + 6 authors+ 1 author

14 November 2022

Background and Objectives: Treating segmental tibial and ankle bone loss after radical surgery for chronic osteomyelitis is one of the most challenging problems encountered by orthopaedic surgeons. Open tibia and ankle fractures occur with an inciden...

(This article belongs to the Section Sports Medicine and Sports Traumatology)
  • Article
  • Open Access
13 Citations
3,778 Views
14 Pages

12 December 2022

In order to meet customers’ demand for freshness and the time window of fresh product distribution, and achieve the sustainable development of the fresh product cold-chain logistics industry, green technology is used to solve the optimization p...

  • Article
  • Open Access
13 Citations
10,623 Views
19 Pages

18 February 2019

The use of computers to simulate facial aging or rejuvenation has long been a hot research topic in the field of computer vision, and this technology can be applied in many fields, such as customs security, public places, and business entertainment....

  • Article
  • Open Access
1 Citations
2,438 Views
21 Pages

15 November 2022

With the rapid development of the sharing economy, more and more platform operators apply the sharing concept in manufacturing, which increases the efficiency of assets utilization. Considering the apparel industry, clothing enterprises or manufactur...

(This article belongs to the Special Issue Green Logistics and Intelligent Transportation)
  • Article
  • Open Access
459 Views
16 Pages

7 September 2026

Background and Objectives: Reconstruction of extensive acetabular bone defects in revision total hip arthroplasty (THA) remains technically demanding and is associated with a high risk of complications. Custom-made three-dimensional (3D)-printed impl...

(This article belongs to the Special Issue Advances in Diagnosis and Treatment of Orthopedic Disorders)
  • Feature Paper
  • Article
  • Open Access
3 Citations
2,492 Views
12 Pages

29 October 2023

The rise of social networks and the increasing amount of time people spend on them have created a perfect place for the dissemination of false narratives, propaganda, and manipulated content. In order to prevent the spread of disinformation, content...

(This article belongs to the Section Artificial Intelligence)
  • Systematic Review
  • Open Access
828 Views
22 Pages

Background/Objectives: Severe acetabular bone loss, particularly Paprosky type IIIA and IIIB defects and pelvic discontinuity, represents a major challenge in revision total hip arthroplasty (rTHA). Custom-made acetabular implants offer a patient-spe...

(This article belongs to the Section Orthopedics and Rehabilitation)
  • Article
  • Open Access
27 Citations
5,110 Views
19 Pages

Comparative Analysis of YOLO Models for Bean Leaf Disease Detection in Natural Environments

  • Diana-Carmen Rodríguez-Lira,
  • Diana-Margarita Córdova-Esparza,
  • José M. Álvarez-Alvarado,
  • Julio-Alejandro Romero-González and ,
  • Juan Terven and
  • Juvenal Rodríguez-Reséndiz
  • + 1 author+ 0 author

30 November 2024

This study presents a comparative analysis of YOLO detection models for the accurate identification of bean leaf diseases caused by Coleoptera pests in natural environments. By using a manually collected dataset of healthy and infected bean leaves in...

(This article belongs to the Special Issue Application of Artificial Neural Network in Agriculture)
  • Article
  • Open Access
26 Citations
6,001 Views
15 Pages

End-to-End Deep One-Class Learning for Anomaly Detection in UAV Video Stream

  • Slim Hamdi,
  • Samir Bouindour,
  • Hichem Snoussi,
  • Tian Wang and
  • Mohamed Abid

In recent years, the use of drones for surveillance tasks has been on the rise worldwide. However, in the context of anomaly detection, only normal events are available for the learning process. Therefore, the implementation of a generative learning...

(This article belongs to the Special Issue Image and Video Forensics)

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