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3,997 Results Found

  • Article
  • Open Access
16 Citations
6,234 Views
22 Pages

9 February 2023

Estimating the project effort remains a challenge for project managers and effort estimators. In the early phases of a project, having a high level of uncertainty and lack of experience cause poor estimation of the required work. Especially for proje...

(This article belongs to the Topic Intelligent Systems and Robotics)
  • Article
  • Open Access
18 Citations
3,400 Views
15 Pages

Advanced Bayesian Network for Task Effort Estimation in Agile Software Development

  • Mili Turic,
  • Stipe Celar,
  • Srdjana Dragicevic and
  • Linda Vickovic

21 August 2023

Effort estimation is always quite a challenge, especially for agile software development projects. This paper describes the process of building a Bayesian network model for effort prediction in agile development. Very few studies have addressed the a...

(This article belongs to the Special Issue Bayesian Statistics on Artificial Intelligence: Theory, Methods and Applications)
  • Article
  • Open Access
7 Citations
2,346 Views
22 Pages

Spectral Clustering Effect in Software Development Effort Estimation

  • Petr Silhavy,
  • Radek Silhavy and
  • Zdenka Prokopova

8 November 2021

Software development effort estimation is essential for software project planning and management. In this study, we present a spectral clustering algorithm based on symmetric matrixes as an option for data processing. It is expected that constructing...

  • Proceeding Paper
  • Open Access
1 Citations
2,562 Views
9 Pages

Web-Based Parametric Effort Estimation for Mobile Application Development

  • Nur Ida Aniza Rusli,
  • Nur Atiqah Sia Abdullah,
  • Fatin Nabila Abd Razak and
  • Nemo Menton Mufriz

Estimation methods are continuously being adapted to obtain better and clearer estimations needed to achieve development goals. Some estimation methods were invented before the modern mobile application technology that is currently available. Thus, t...

(This article belongs to the Proceedings of International Academic Symposium of Social Science 2022)
  • Article
  • Open Access
22 Citations
6,164 Views
20 Pages

A New Approach to Calibrating Functional Complexity Weight in Software Development Effort Estimation

  • Vo Van Hai,
  • Ho Le Thi Kim Nhung,
  • Zdenka Prokopova,
  • Radek Silhavy and
  • Petr Silhavy

22 January 2022

Function point analysis is a widely used metric in the software industry for development effort estimation. It was proposed in the 1970s, and then standardized by the International Function Point Users Group, as accepted by many organizations worldwi...

  • Article
  • Open Access
28 Citations
5,007 Views
22 Pages

8 January 2024

Software effort estimation has constituted a significant research theme in recent years. The more important provocation for project managers concerns reaching their targets within the fixed time boundary. Machine learning strategies can lead software...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
70 Citations
12,888 Views
31 Pages

Effort and Cost Estimation Using Decision Tree Techniques and Story Points in Agile Software Development

  • Eduardo Rodríguez Sánchez,
  • Eduardo Filemón Vázquez Santacruz and
  • Humberto Cervantes Maceda

17 March 2023

Early effort estimation is important for efficiently planning the use of resources in an Information Technology (IT) project. However, limited research has been conducted on the topic of effort estimation in agile software development using artificia...

(This article belongs to the Special Issue Mathematical Methods and Models in Software Engineering)
  • Article
  • Open Access
5 Citations
7,192 Views
31 Pages

29 October 2024

Functional size measures are widely used for estimating software development effort. After the introduction of Function Points, a few “simplified” measures have been proposed, aiming to make measurement simpler and applicable when fully d...

  • Article
  • Open Access
7 Citations
4,565 Views
21 Pages

22 December 2024

Effort estimation is critical in software engineering to assess the resources needed for development tasks and to enable realistic commitments in agile iterations. This study investigates whether generative AI tools, which are transforming various as...

(This article belongs to the Special Issue Artificial Intelligence in Software Engineering)
  • Article
  • Open Access
1 Citations
1,053 Views
28 Pages

SHAP-Value-Weighted Case-Based Reasoning Model with Improved Mixup Data Augmentation for Software Effort Estimation

  • Jing Li,
  • Han Zhang,
  • Shengxiang Sun,
  • Mingchi Lin and ,
  • Sishi Liu,
  • Chen Zhu and
  • Kai Li
  • + 2 authors+ 0 author

30 April 2026

Software effort estimation (SEE) serves as a cornerstone of effective software project management, and case-based reasoning (CBR) stands out as one of the most extensively adopted approaches within this domain. Nevertheless, CBR-based SEE models are...

(This article belongs to the Special Issue Artificial Intelligence and Decision Support Systems)
  • Article
  • Open Access
9 Citations
2,794 Views
14 Pages

8 December 2022

The prediction level at x (PRED(x)) and mean magnitude of relative error (MMRE) are measured based on the magnitude of relative error between real and predicted values. They are the standard metrics that evaluate accurate effort estimates. However, t...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
34 Citations
3,891 Views
24 Pages

20 January 2022

Particle Swarm Optimization is a metaheuristic optimization algorithm widely used across a broad range of applications. The algorithm has certain primary advantages such as its ease of implementation, high convergence accuracy, and fast convergence s...

(This article belongs to the Collection Software Engineering: Computer Science and System)
  • Article
  • Open Access
418 Views
31 Pages

11 September 2026

Measuring the functional size of business intelligence (BI) and digital marketing analytics dashboard development can provide quantitative input for estimating the required time and cost of software development efforts. However, digital analytics pra...

(This article belongs to the Special Issue Intelligent Technologies in Software Development and Service Engineering)
  • Article
  • Open Access
1 Citations
570 Views
26 Pages

22 July 2026

In this paper, we propose an assist-as-needed (AAN) backstepping control scheme for a lower-limb exoskeleton with nonlinear dynamics and uncertain human–robot interactions. The main objective is to achieve a good trajectory tracking capability...

  • Feature Paper
  • Article
  • Open Access
12 Citations
3,834 Views
23 Pages

8 December 2024

Traditional software effort estimation methods, such as term frequency–inverse document frequency (TF-IDF), are widely used due to their simplicity and interpretability. However, they struggle with limited datasets, fail to capture intricate se...

(This article belongs to the Special Issue Intelligent Approaches for Solving Software Problems with AI Techniques)
  • Article
  • Open Access
74 Citations
7,371 Views
19 Pages

Estimating Software Development Efforts Using a Random Forest-Based Stacked Ensemble Approach

  • Priya Varshini A G,
  • Anitha Kumari K and
  • Vijayakumar Varadarajan

Software Project Estimation is a challenging and important activity in developing software projects. Software Project Estimation includes Software Time Estimation, Software Resource Estimation, Software Cost Estimation, and Software Effort Estimation...

(This article belongs to the Section Artificial Intelligence)
  • Article
  • Open Access
3 Citations
2,565 Views
20 Pages

Estimation of Respiratory Effort Through Diaphragmatic Electromyography Features

  • Gabriela Grońska,
  • Elisabetta Peri,
  • Xi Long,
  • Sebastiaan Overeem and ,
  • Johannes van Dijk and
  • Massimo Mischi
  • + 1 author+ 0 author

3 September 2025

Respiratory effort is a critical parameter for assessing respiratory function in various pathological conditions such as obstructive sleep apnea (OSA), as well as in patients undergoing respiratory ventilation. Currently, the gold-standard method for...

(This article belongs to the Collection Respiratory Monitoring for Healthcare, Sport and Physical Activity: Sensors, Techniques and Applications)
  • Article
  • Open Access
3,152 Views
20 Pages

Low-Effort Respiratory Function Estimation with a Soft Wearable Digital Spirometry Patch

  • Faheem A. Karim,
  • Ahmed Tariq,
  • Christopher B. Fitzpatrick,
  • Lauren Zhou and ,
  • Mayte Suárez-Fariñas,
  • Helena Schotland,
  • Linda Rogers,
  • Yoon Jae Lee,
  • Woon-Hong Yeo and
  • Yun Soung Kim
  • + 5 authors+ 0 author

Spirometry is widely regarded as the clinical gold standard for quantifying lung function. It plays a central role in the diagnosis and management of cardiopulmonary disorders, including asthma and chronic obstructive pulmonary disease (COPD). Howeve...

(This article belongs to the Section Wearable Biosensors)
  • Article
  • Open Access
11 Citations
3,809 Views
15 Pages

27 April 2020

Sometimes unclearly describing the requirement specifications of satisfied customer’s needs, means it may be difficult to develop the production of high-quality software systems. A persistent issue of requirement engineering is how to clearly u...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
865 Views
47 Pages

APCI: A Complexity-Aware Framework for Computational Software Effort Estimation in Machine Learning-Based Intrusion Detection Systems

  • Vignaraj Ananth Vikraman,
  • Sumendra Yogarayan,
  • Kalaiarasi Sonai Muthu and
  • Manikandan Thirumalaisamy

11 August 2026

The increasing adoption of machine learning and deep learning techniques in intrusion detection systems (IDSs) has substantially increased the computational complexity of model development due to large-scale datasets, sophisticated model architecture...

(This article belongs to the Special Issue Anomaly and Intrusion Detection in Networks)
  • Article
  • Open Access
2 Citations
3,064 Views
18 Pages

8 February 2024

Visualising the fishing behaviour of vessels and quantifying the spatial distribution of fishing effort is the scientific basis for assessing and managing fisheries resources. The information on the dynamics of fishing vessel voyages provided by the...

(This article belongs to the Section Fishery Facilities, Equipment, and Information Technology)
  • Article
  • Open Access
78 Citations
10,550 Views
23 Pages

13 January 2017

Although much research has taken place in WiFi indoor localization systems, their accuracy can still be improved. When designing this kind of system, fingerprint-based methods are a common choice. The problem with fingerprint-based methods comes with...

(This article belongs to the Special Issue Smartphone-based Pedestrian Localization and Navigation)
  • Article
  • Open Access
9 Citations
3,458 Views
18 Pages

Software Estimation in the Design Stage with Statistical Models and Machine Learning: An Empirical Study

  • Ángel J. Sánchez-García,
  • María Saarayim González-Hernández,
  • Karen Cortés-Verdín and
  • Juan Carlos Pérez-Arriaga

1 April 2024

Accurate estimation of software effort and time in the software development process is a key activity to achieve the necessary product quality. However, underestimation or overestimation of effort has become a key challenge for software development....

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
27 Citations
4,591 Views
21 Pages

2 July 2021

Software estimation involves meeting a huge number of different requirements, such as resource allocation, cost estimation, effort estimation, time estimation, and the changing demands of software product customers. Numerous estimation models try to...

(This article belongs to the Section Multidisciplinary Applications)
  • Article
  • Open Access
2 Citations
2,574 Views
31 Pages

Measurement of the Functional Size of Web Analytics Implementation: A COSMIC-Based Case Study Using Machine Learning

  • Ammar Abdallah,
  • Alain Abran,
  • Munthir Qasaimeh,
  • Malik Qasaimeh and
  • Bashar Abdallah

To fully leverage Google Analytics and derive actionable insights, web analytics practitioners must go beyond standard implementation and customize the setup for specific functional requirements, which involves additional web development efforts. Pre...

  • Article
  • Open Access
19 Citations
7,820 Views
35 Pages

19 August 2024

Advances in software engineering, particularly in Agile software development (ASD), demand innovative approaches to effort estimation due to the volatility in Agile environments. Recent trends have made the automation of story point (SP) estimation i...

(This article belongs to the Special Issue Machine Learning-Based Feature Extraction and Selection: 2nd Edition)
  • Article
  • Open Access
29 Citations
10,221 Views
20 Pages

Early Highway Construction Cost Estimation: Selection of Key Cost Drivers

  • Nevena Simić,
  • Nenad Ivanišević,
  • Đorđe Nedeljković,
  • Aleksandar Senić and ,
  • Zoran Stojadinović and
  • Marija Ivanović
  • + 1 author+ 0 author

22 March 2023

Cost estimates in the early stages of project development are essential for making the right decisions, but they are a huge challenge and risk for owners and potential contractors due to limited information about the characteristics of a future highw...

(This article belongs to the Special Issue Value Co-Creation in Sustainable Project Society)
  • Article
  • Open Access
3 Citations
2,822 Views
16 Pages

14 February 2019

Representative input data are a necessary requirement for the assessment of machine-vision systems. For symmetry-seeing machines in particular, such imagery should provide symmetries as well as asymmetric clutter. Moreover, there must be reliable gro...

(This article belongs to the Special Issue Visual Symmetry 2018)
  • Article
  • Open Access
29 Citations
5,154 Views
20 Pages

Using Actors and Use Cases for Software Size Estimation

  • Radek Silhavy,
  • Petr Silhavy and
  • Zdenka Prokopova

Software size estimation represents a complex task, which is based on data analysis or on an algorithmic estimation approach. Software size estimation is a nontrivial task, which is important for software project planning and management. In this pape...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
13 Citations
6,956 Views
19 Pages

5 January 2018

The harvesting of bait through digging in coastal mudflats is practiced for recreational and commercial purposes in European coastal systems including the Ria de Aveiro coastal lagoon on the northwest Atlantic coast of Portugal. The scale of harvesti...

  • Article
  • Open Access
1,346 Views
12 Pages

Background/Objectives: This study investigated the effect of sprint intensity on spatiotemporal variables and joint kinematics during the maximal-velocity phase at each intensity level in experienced sprinters. Methods: Twenty experienced master spri...

(This article belongs to the Section Sports Biomechanics)
  • Article
  • Open Access
5 Citations
4,465 Views
21 Pages

In the early software development stages, the aim of estimation is to obtain a rough understanding of the timeline and resources required to implement a potential project. The current study is devoted to a method of preliminary estimation applicable...

(This article belongs to the Section Industrial and Manufacturing Engineering)
  • Article
  • Open Access
7 Citations
2,928 Views
20 Pages

Estimating Spatiotemporal Fishing Effort of Trawlers with Vessel-Monitoring System Data: A Case Study of the Sea Area of the Bohai Sea and the Yellow Sea, China

  • Dan Li,
  • Feng Lu,
  • Shuo Xu,
  • Huiyuan Liu and ,
  • Muhan Xue,
  • Guohui Cui,
  • Zhenhua Ma,
  • Hui Fang and
  • Yu Wang
  • + 4 authors+ 0 author

Measuring the distribution of the fishing effort of trawlers is of great significance for describing marine fishery activities, quantifying fishing systems in terms of marine ecological pressure, and revising the regulations of fishing. The purpose o...

(This article belongs to the Section Ocean Engineering)
  • Article
  • Open Access
3 Citations
3,360 Views
28 Pages

8 March 2025

Vessel speed reduction measures are a management tool used to reduce the risk of whale–ship strikes and mitigate their impacts. Large ships and other commercial vessels are required to publicly share tracking information, including their speed,...

(This article belongs to the Section Radar Sensors)
  • Article
  • Open Access
4 Citations
2,679 Views
12 Pages

The goal of the present study was to extend earlier work on the estimation of person theta using maximum likelihood estimation in R by accounting for rapid guessing. This paper provides a modified R function that accommodates person thetas using the...

  • Article
  • Open Access
8 Citations
4,420 Views
20 Pages

Evaluation Performance of Three Standardization Models to Estimate Catch-per-Unit-Effort: A Case Study on Pacific Sardine (Sardinops sagax) in the Northwest Pacific Ocean

  • Yongchuang Shi,
  • Haibin Han,
  • Fenghua Tang,
  • Shengmao Zhang and ,
  • Wei Fan,
  • Heng Zhang and
  • Zuli Wu
  • + 2 authors+ 0 author

11 December 2023

Catch-per-unit-effort (CPUE) standardization in fisheries is a critical foundation for conducting stock assessment and fishery conservation. The Pacific sardine (Sardinops sagax) is one of the economically important fish species in the Northwest Paci...

(This article belongs to the Special Issue Biodiversity and Spatial Distribution of Fishes)
  • Article
  • Open Access
2 Citations
1,062 Views
23 Pages

The likelihood-based person-fit statistic, lz*, is commonly used in educational assessments to distinguish between respondents who are putting in effort and those who are not. However, lz* depends on the estimated item parameters. Item parameter esti...

  • Article
  • Open Access
12 Citations
5,492 Views
20 Pages

7 August 2019

Southern African savannas are an important dryland ecosystem, as they account for up to 54% of the landscape, support a rich variety of biodiversity, and are areas of key landscape change. This paper aims to address the challenges of studying this hi...

(This article belongs to the Section Remote Sensors)
  • Article
  • Open Access
553 Views
33 Pages

6 October 2026

Territorial heritage documentation programmes require coordinated acquisition, processing and information management across assets with different documentation demands. This study presents the Equivalent Documentation Unit (UDE, retaining the project...

(This article belongs to the Special Issue GIS and RS for Spatial Documentation, Analysis and Interpretation in Multi-Scale Archaeological Applications)
  • Feature Paper
  • Article
  • Open Access
34 Citations
10,632 Views
15 Pages

1 September 2017

Fixed sample entropy (fSampEn) is a robust technique that allows the evaluation of inspiratory effort in diaphragm electromyography (EMGdi) signals, and has potential utility in sleep studies. To appropriately estimate respiratory effort, fSampEn req...

(This article belongs to the Special Issue Entropy and Sleep Disorders)
  • Article
  • Open Access
5 Citations
3,527 Views
10 Pages

Objectives: The aim of this study was to investigate how a sprint warm-up with increasing prescribed effort relates to actual effort and how this influences RPE and readiness for a maximal 50 m sprint performance. Methods: A total of 19 subjects (17...

(This article belongs to the Section Athletic Training and Human Performance)
  • Article
  • Open Access
7 Citations
3,602 Views
18 Pages

Changes in Estimating the Wild Boar Carcasses Sampling Effort: Applying the EFSA ASF Exit Strategy by Means of the WBC-Counter Tool

  • Stefano Cappai,
  • Ileana Baldi,
  • Pietro Desini,
  • Antonio Pintore and ,
  • Daniele Denurra,
  • Marcella Cherchi,
  • Sandro Rolesu,
  • Daniela Mandas,
  • Giulia Franzoni and
  • Federica Loi
  • + 9 authors+ 4 authors

28 June 2022

African swine fever (ASF) is a devastating disease, resulting in the high mortality of domestic and wild pigs, spreading quickly around the world. Ensuring the prevention and early detection of the disease is even more crucial given the absence of li...

(This article belongs to the Special Issue State-of-the-Art Porcine Viruses Research in Europe)
  • Perspective
  • Open Access
20 Citations
7,906 Views
12 Pages

The Importance of High–Quality Data for REDD+ Monitoring and Reporting

  • Marieke Sandker,
  • Oswaldo Carrillo,
  • Chivin Leng,
  • Donna Lee and ,
  • Rémi d’Annunzio and
  • Julian Fox
  • + 1 author+ 0 author

18 January 2021

This article discusses the importance of quality deforestation area estimates for reliable and credible REDD+ monitoring and reporting. It discusses how countries can make use of global spatial tree cover change assessments, but how considerable addi...

(This article belongs to the Special Issue REDD+: Protecting Climate, Forests and Livelihoods)
  • Article
  • Open Access
10 Citations
4,739 Views
22 Pages

11 January 2020

Reference data collected to validate land-cover maps are generally considered free of errors. In practice, however, they contain errors despite best efforts to minimize them. These errors propagate during accuracy assessment and tweak the validation...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
8 Citations
2,923 Views
15 Pages

The Use of Respiratory Effort Improves an ECG-Based Deep Learning Algorithm to Assess Sleep-Disordered Breathing

  • Jiali Xie,
  • Pedro Fonseca,
  • Johannes P. van Dijk,
  • Xi Long and
  • Sebastiaan Overeem

Background: Sleep apnea is a prevalent sleep-disordered breathing (SDB) condition that affects a large population worldwide. Research has demonstrated the potential of using electrocardiographic (ECG) signals (heart rate and ECG-derived respiration,...

(This article belongs to the Special Issue Moving beyond Current Diagnosis of Sleep-Disordered Breathing)
  • Article
  • Open Access
10 Citations
6,101 Views
11 Pages

Stride Lengths during Maximal Linear Sprint Acceleration Obtained with Foot-Mounted Inertial Measurement Units

  • Cornelis J. de Ruiter,
  • Erik Wilmes,
  • Pepijn S. van Ardenne,
  • Niels Houtkamp and ,
  • Reinder A. Prince,
  • Maarten Wooldrik and
  • Jaap H. van Dieën
  • + 2 authors+ 0 author

4 January 2022

Inertial measurement units (IMUs) fixed to the lower limbs have been reported to provide accurate estimates of stride lengths (SLs) during walking. Due to technical challenges, validation of such estimates in running is generally limited to speeds (w...

(This article belongs to the Special Issue Wearable and Integrated Sensors for Sport and Rehabilitation Applications)
  • Article
  • Open Access
12 Citations
4,128 Views
23 Pages

9 August 2019

The paper is basically dedicated to the problem of effort estimation for the Product Backlog items of IT projects led accordingly to the Scrum framework. The effort estimation issue is important, because low quality estimation decreases the efficienc...

(This article belongs to the Special Issue Multi-Criteria Decision Aid methods in fuzzy decision problems)
  • Article
  • Open Access
61 Citations
11,477 Views
21 Pages

9 April 2015

In exoskeletal robots, the quantification of the user’s muscular effort is important to recognize the user’s motion intentions and evaluate motor abilities. In this paper, we attempt to estimate users’ muscular efforts accurately using joint torque s...

(This article belongs to the Section Physical Sensors)
  • Review
  • Open Access
2 Citations
3,609 Views
18 Pages

Quantifying oxidative, glycolytic, and phosphagen energy system contributions during exercise is challenging due to their simultaneous activation and reliance on indirect estimation. This narrative review critically examines the methodological founda...

(This article belongs to the Special Issue Exercise Physiology and Biochemistry: 3rd Edition)

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