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652 results for “statistical data analysis”

Research Article Open Access Statistical Equi-Equal Convergence Of Double Sequences And Korovkin Type Approximation Theorems
Fadime Dirik, Dirik F
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.053

Many researchers have been interested in the concept of statistical convergence. Since statistical convergence is stronger than the classical convergence. Then, F. Móricz has introduced the statistical convergence of double sequences (Arch. Math. 81 no.1, 82-8…

Research Article Open Access A-Statistical Equal Approximation on Two Dimensional Weighted Spaces
Sevda Yıldız, Yıldız S, Fadime Dirik, Dirik F, Kamil Demirci, Demirci K
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.055

Korovkin type approximation theorems have very important role in the approximation theory. Many mathematicians investigate and improve these type of approximation theorems for various operators defined on different spaces via several new convergence methods. T…

Research Article Open Access Equi-Statistical Relative Convergence and Korovkin-Type Approximation
Sevda Yıldız, Yıldız S, Kamil Demirci, Demirci K, Fadime Dirik, Dirik F
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.056

Classical approximation theory has started with the proof of Weierstrass approximation theorem and after that Korovkin [Linear operators and approximation theory, Hindustan Publ. Corp, Delhi, 1960] first established the necessary and sufficient conditions for …

Research Article Open Access Statistical precision of Malmquist Productivity Index and DEA: A bootstrap application to OECD healthcare
Serpil Aydın, Aydın S
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.125

Data Envelopment Analysis (DEA) is a non-parametric mathematical programming that uses multi inputs to produce multi outputs. It is investigated whether the decision making unit is effective or not. However, it has been debated for years that the results obtai…

Research Article Open Access PREDICTION OF HIGH-TEMPERATURE PERFORMANCE OF GEOPOLYMER MODIFIED ASPHALT BINDER USING ARTIFICIAL NEURAL NETWORKS
Mustafa Alas, Alas M, Shaban Ismael Albrka Ali  , Albrka Ali   S
2nd International Symposium on Innovative Approaches in Scientific Studies 2018

Complexity in the behavior of asphalt binders are further escalated with geopolymer (fly ash and the alkali liquid) modification thus, making it difficult to predict the performance of the binder accurately. This study employs artificial neural network model…

Research Article Open Access A Simulation Study on Dependency Structure of Order Statistics
Ferhan Baş Kaman, Baş Kaman F, Hülya Olmuş, Olmuş H
Ist International Symposium on Innovative Approaches in Scientific Studies 2018

In this study, dependency structure of order statistics which are widely used in statistical hypothesis, prediction problems, statistical process controls, reliability, risk management and many applied areas have been investigated with copulas. Dependency rela…

Research Article Open Access Use of Geographic Information System (GIS) to Evaluate the Nitrogenous Compounds in Groundwater of Ergene River Basin (TURKEY)
Cem Tokatlı, Tokatlı C
2nd International Symposium on Innovative Approaches in Scientific Studies 2018

In this study water samples were collected from 30 villages located in the Ergene River Basin in summer season of 2018. Nitrate (NO3) and nitrite (NO2) concentrations of water samples were determined and the results were assessed according to national and in…

Research Article Open Access Statistical Equal Convergence On Weighted Spaces
Fadime Dirik, Dirik F, Kamil Demirci, Demirci K, Sevda Yıldız, Yıldız S
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.054

The Korovkin theory has effective role in approximation theory. This theory is connected with the approximation to continuous functions by means of positive linear operators. Many mathematicians have investigated the Korovkin-type theorems by for a sequence of…

Research Article Open Access Impact of vaccines on the COVID-19 pandemic in Turkey
Elif Deniz Yelmenoğlu, Yelmenoğlu E, Dilara Elmas, Elmas D
Proceeding of the 5th International Symposium on Innovative Approaches in Smart Technologies 2022 https://doi.org/10.36287/setsci.5.1.003

COVID-19 (coronavirus disease-2019 pandemic continues to threaten public health and this situation is raising great concern all over the world. With the development of different vaccines, it was aimed to end the epidemic and increase community immunity in the …

Research Article Open Access Can We Stop the Backtest Yet? Anytime-Valid Promotion Tests for Adaptive Financial Research Agents
Eric Benhamou, Benhamou E, Jean-Jacques Ohana, Ohana J, Beatrice Guez, Guez B, Thomas Jacquot, Jacquot T, Ethan Setrouk, Setrouk E, Chamyl Saadi, Saadi C
Proceedings of the International Conference on Open Finance (ICOF 2026) 2026 https://doi.org/10.36287/setsci.25.3.001

Adaptive research systems can generate, discard, revise, and monitor trading rules faster than their selection history can be audited. We ask when such a system may promote a frozen rule to governed forward evaluation. The proposed protocol assigns each candid…

Research Article Open Access Using Honey Bee Products for Human Health
Orhan Yılmaz, Yılmaz O
International Symposium on Multidisciplinary Studies and Innovative Technologies 2017

This review is realized to investigate usage of honey bee product for human health. In the World Turkey is the 2nd for honey production after China and 3rd for bee colony after India and China. On the other hand bee products is only meant for honey production …

Research Article Open Access Deneysel Tasarım Yöntemlerinin Yol Üstyapı Uygulamalarında Kullanılabilirliğinin İncelenmesi
Zeynep Baran Yıldırım, Yıldırım Z, Ezgi Eren, Eren E, Burak Yiğit Katanalp, Katanalp B, Murat Karacasu, Karacasu M
2nd International Symposium on Innovative Approaches in Scientific Studies 2018

Experimental design methods used in optimization of engineering problems and processes in many industrial fields have been shown to be applicable in road superstructures within this study. Using the special purpose statistical experiment design program, opti…

Research Article Open Access The Relation Between Foreign Trade Deficit and Budget Deficit Before and After Customs Union in Turkey
İmdat Köksal, Köksal İ, Emine Ateş, Ateş E, Ali Çiçek, Çiçek A, Muhammed Sait Işıldak, Işıldak M
Ist International Symposium on Innovative Approaches in Scientific Studies 2018

To investigate how foreign trade deficits and budget deficits of Turkey navigated pre and post customs union (CU) with European Union. In the study, for the budget deficits (BD), General Directorate of Budget and Fiscal Control (BUMKO) and also for the foreign…

Research Article Open Access Improving Hyperspectral Image Classification with Watershed Segmentation-Based Texture Features
Çiğdem Şerifoğlu Yılmaz, Şerifoğlu Yılmaz Ç, Volkan Yılmaz, Yılmaz V, Oğuz Güngör, Güngör O
2nd International Symposium on Innovative Approaches in Scientific Studies 2018

Hyperspectral images offer a good separability among land cover classes, owing to their advantages to provide spectral bands with narrow wavelength intervals. It is also possible to further increase classification accuracy of hyperspectral images by integrat…

Research Article Open Access A Bayesian imputation approach for handling missing data in repeatedly measured categorical variables
Oya Kalaycıoğlu, Kalaycıoğlu O
Ist International Symposium on Innovative Approaches in Scientific Studies 2018

Multiple imputation (MI) is increasingly being used as a sophisticated tool to handle missing data in the recent years. The standard MI techniques use Bayesian sampling methods for making posterior draws for the imputations and analyse the imputed data sets un…

Research Article Open Access The Random Forest with Hybrid Principal Component Analysis for detecting Healthy and Insomnia individuals in three subtypes of Cyclic Alternating Pattern Sleep Study
Nadhim Azeez Sayel, Sayel N, Mohammad Fayaz, Fayaz M
Proceeding of the Cognitive Models and Artificial Intelligence Conference 2024 https://doi.org/10.36287/setsci.17.1.001

Sleep disorders such as insomnia, sleep bruxism, narcolepsy, and sleep-disordered breathing have different sleep quality parameters such as cyclic alternating pattern phases and A subtype phases. This study aims to analyze and predict the A phase subtypes from…

Research Article Open Access 3D Reconstruction of Point Clouds and Solid Models from LiDAR and Digital Stereo Images
Abu Kamara, Kamara A, Sedat Doğan, Doğan S
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.059

One of the fastest 3D data acquisition methods is LiDAR scanning technology. By using LiDAR scanners, 3D point clouds of the scanned seen is obtained easily. Although the scanning phase is fast, the meaningful and effective 3D visualization of the scene requir…

Research Article Open Access Calendar Anomalies in Crisis: Intra-Day Volatility Patterns During the GFC and COVID-19
Naresh Chethala, Chethala N, Syeda Nabeera Suhail, Suhail S
International Conference on Open Finance 2025 https://doi.org/10.36287/setsci.24.1.001

This paper explores how intra-day volatility behaves across different weekdays during periods of major financial stress, focusing specifically on the S&P 500 and NASDAQ-100 indices. The analysis spans two significant market disruptions—the 2008 Global Financia…

Research Article Open Access Word Vector Space for Text Classification and Prediction According to Author
İlknur Dönmez, Dönmez İ, Elnaz Pashaei , Pashaei  E, Elham Pashaei 
International Congress on Human-Computer Interaction, Optimization and Robotic Applications 2019 https://doi.org/10.36287/setsci.4.5.021

Word embedings are intense vector representations of words. They capture the semantic order between words. In our study, we propose a new method for classifying text by author, using word embeds and author vector space. Using each author's books, we trained th…

Research Article Open Access Forecasting Banking Desert Risk Using Branch Level and Merger Signals
Malavika Polanki, Polanki M
Proceedings of the International Conference on Open Finance (ICOF 2026) 2026 https://doi.org/10.36287/setsci.25.5.001

In the United States, banking desert status is classified annually from that same year’s branch data, producing a contemporaneous snapshot of current access rather than a forecast of which communities are likely to change status next. This study tests whether …

Research Contributions (2019+)Peer reviewed by at least two reviewers
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