Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Department: search.filters.department.Izmir Institute of TechnologyPublisher: search.filters.publisher.Institute of Electrical and Electronics Engineers Inc.

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Now showing 1 - 10 of 16
  • Conference Object
    Optimizing Integrated Shading Device and Light Shelf for Daylight Performance and Visual Comfort in Architecture Studio
    (Institute of Electrical and Electronics Engineers Inc., 2024) Avci, P.; Ekici, Berk; Kazanasmaz, Zehra Tuğçe; Kazanasmaz, Z.T.; 02.02. Department of Architecture; 02. Faculty of Architecture; 01. Izmir Institute of Technology
    To provide a sustainable interior, it is essential to consider visual comfort and energy efficiency for the occupants' well-being. Daylight is crucial in providing visual comfort while proposing energy-efficient design alternatives. Using daylight as a primary source is one of the most crucial strategies. However, controlling daylight for unwanted situations such as discomfort glare is important. There have been several research studies on daylighting, visual comfort, and shading techniques. Shading devices are façade configurations to control daylight, while light shelves distribute daylight evenly through the space. There are two types of classifications for shading devices: adaptive ones and non-adaptive ones. Numerous research studies have been conducted on daylighting, energy consumption, occupancy performance, and shading systems. Shading technologies, whether adaptive or not, provide benefits and drawbacks. Even though optimizing them is one way to design non-adaptive shading devices, they require minimal maintenance. This study aims to integrate adaptive shading devices and light shelves for university campus buildings to provide lighting design strategies. The aim is to create a study environment that promotes well-being and academic achievement. To pursue this study, three optimization algorithms were run to find the nearly optimal solution. The goal was to both maximize Daylight Autonomy and uniformity values. Results showed that HypE and SPEA2 results discovered near-optimal DA above 75% and uniformity between 0.6 and 0.7. © 2024 IEEE.
  • Conference Object
    Evaluating Adoption Factors for Robotic-Assisted Surgery With the Analytical Hierarchical Process
    (Institute of Electrical and Electronics Engineers Inc., 2024) Dindaroğlu, Burak; Dindaroglu,B.; Aytac,E.; 01. Izmir Institute of Technology; 01.01. Units Affiliated to the Rectorate
    The objective of this master's dissertation is to evaluate adoption factors for robotic-assisted surgery (RAS) using the Analytical Hierarchy Process (AHP) as its evaluation methodology. Robotic-assisted surgery is used in various surgical fields. It is mainly used as a tool in numerous disciplines' minimally invasive surgery procedures (MIS). Since it has so many different application areas and actors, the determination of its adoption factors and evaluation process of these factors' priorities for surgeons is a highly complex issue that includes multicriteria of decision-making and numerous surgeons. A comprehensive list of these possible adoption factors recognized by conducting an extensive literature review, was picked and chosen. First, we had 310 factors mentioned in the literature that have a potential impact on the adoption process of the RAS. We have reduced these to 20 factors that are categorized under five different main criteria. By this, a unique AHP tree that is this thesis' contribution to the literature was developed. The research data was collected by an online survey from the surgeons of various disciplines working in Türkiye. Our final sample to evaluate priorities consisted of forty-one surgeon responses in total. The evaluation process consists of three steps: analyzing individual-based pairwise comparison matrices, their consistency rations, and their priority vectors. We executed the same workflow for the aggregated analysis for disciplined-based and all aggregation. Results are examined in detail and concluded with insightful interpretations. © 2024 PICMET.
  • Conference Object
    Citation - Scopus: 2
    Deception Through Cloning Against Web Site Attacks
    (Institute of Electrical and Electronics Engineers Inc., 2021) Erten, Yusuf Murat; Carikci,B.; Erten,Y.M.; 01. Izmir Institute of Technology; 03.04. Department of Computer Engineering; 03. Faculty of Engineering
    In this study, a deception-based solution to the web site attacks is proposed. No fake entity is created to attract the intruders. The suggested solution involves cloning the web site under attack after the intrusion is detected and diverting the attacker to this cloned web page. Intrusion detection system (IDS) is used for detecting the attacks and Docker is used as the virtualization technology to create the cloned web site. While the intruder is connected to the clone, information is gathered on her/his activities. The system is implemented and tested for different attack types, and performance measurements were carried out. The results show that the system implementation for static pages is feasible and the system performance is not significantly affected. © 2021 IEEE.
  • Conference Object
    Citation - Scopus: 3
    Behavior-Driven Development of Software Product Lines
    (Institute of Electrical and Electronics Engineers Inc., 2021) Tuğlular, Tuğkan; Coskun,D.E.; 01. Izmir Institute of Technology; 03.04. Department of Computer Engineering; 03. Faculty of Engineering
    Software product lines (SPLs) develop families of similar software products, which share a standard set of features, and they build in variety via optional features. That means customers can select features according to their needs and come up with a product configuration. Then the SPL is expected automatically to generate and test the software product for the chosen configuration. There are various SPL solutions for the automatic generation of software products, but those SPLs lack automatic testing of the generated product. To overcome this shortcoming, the SPL should automatically compose a test suite according to the selected features, automatically execute the test suite on the product, and automatically generate a test report delivered to the customer with the product. This paper proposes such an approach through behavior driven development. The proposed method is evaluated with a smart home SPL. © 2021 IEEE.
  • Conference Object
    Citation - Scopus: 1
    Electroluminesence Properties and Stability of Super Yellow on Zaz and Ito Anodes
    (Institute of Electrical and Electronics Engineers Inc., 2021) Bozkurt,H.; Varlıklı, Canan; Aygün, Gülnur; Özyüzer, Lütfi; Aygun,G.; Ozyuzer,L.; Varlikli,C.; 04.04. Department of Photonics; 04. Faculty of Science; 01. Izmir Institute of Technology; 04.05. Department of Pyhsics
    Transparent conductive oxides (TCEs) are essential and important part of many optoelectronic devices. They could affect efficiencies due to their optical and electrical properties. In this work, commercially available Indium Tin Oxide (ITO) and generously provided ZTO/Ag/ZTO (ZAZ) multilayer thin film coated glasses are utilized as anodes in a Super Yellow (SY) based Organic Light Emitting Diode (OLED). ZAZ electrode presented comparable transparency with the ITO and although, it was much thinner, its sheet resistance was more than 20% lower than the ITO electrode. The electroluminescence wavelength range of SY was almost identical with both electrodes. Due to the obtained higher turn-on voltage, the power efficiency value was slightly lower with the ZAZ electrode, and a negligible full width of half-maximum increase was detected. Nevertheless, ZAZ electrode presented higher luminous and external quantum efficiencies, color stability with applied voltage, and therefore addressed as a good candidate for ITO-free OLEDs. © 2021 IEEE.
  • Conference Object
    Citation - Scopus: 19
    Thquad: Turkish Historic Question Answering Dataset for Reading Comprehension
    (Institute of Electrical and Electronics Engineers Inc., 2021) Soygazi,F.; Çiftçi,O.; Kök,U.; Cengiz,S.; 01. Izmir Institute of Technology
    Question answering(QA) is a field in natural language processing and information retrieval, it aims to give answers to the questions using natural language. In this paper, we present the Turkish question answering dataset, which is THQuAD and baseline results with contextualized word embeddings. THQuAD consists of two different datasets one of them is TQuad on Turkish Islamic Science history within the scope of Teknofest 2018 "Artificial Intelligence competition", the second dataset on Ottoman history within the scope of Teknofest 2020 "Dogal Dil íçleme Yarismasi" prepared by us. THQuAD is a reading comprehension dataset, consisting of questions, answers, and passages. Our objective is to give an answer to a specific question by understanding the passage and extracting the answer from this passage. We generate contextualized word embeddings from pre-trained Turkish Bert, Electra, Albert language models after fine-tuning on different hyperparameters with neural networks. © 2021 IEEE
  • Conference Object
    Citation - Scopus: 2
    Magnetron Sputtering Deposition of Sb2se3thin Films: Physical Property Characterizations and Its Relevance for Photovoltaics
    (Institute of Electrical and Electronics Engineers Inc., 2020) Aygün, Gülnur; Özyüzer, Lütfi; Aygun,G.; Cantas,A.; 01. Izmir Institute of Technology; 04.05. Department of Pyhsics; 04. Faculty of Science
    The absorber layer is a significant part of the solar cell configuration because of its role in determining the efficiency. Since the properties of the chalcogenides have been studied intensively, the Sb2Se3 material has come into prominence. In thin film technology, the most effective ways of increasing the performance are the rate of photon absorption, long material life, carrier efficiency and the quality of the interface. Sb2Se3 gets more attention than others due to its optoelectronic properties. Sb2Se3 has a suitable band gap (Eg), long term material stability, and a relatively simple composition with non-Toxic and earth abundant elements. All these features make Sb2Se3 a promising candidate for use as an absorber layer in thin film photovoltaics (PVs). In this study, Sb2Se3 films have been grown with DC magnetron sputtering method onto soda lime glass (SLG) substrates with different time durations. Morphological, structural, and optical properties of Sb2Se3 thin films were systematically investigated as a function of the thickness for photovoltaic applications. Our results indicate that the optical transmission, absorption behavior, and bandgap energy are strongly dependent on the thickness of the film. © 2020 IEEE.
  • Conference Object
    Citation - Scopus: 2
    The Effect of Ar Gas Flow Rate on Structure and Optical Properties of Magnetron Sputtered Sb2se3thin Films for Solar Cells
    (Institute of Electrical and Electronics Engineers Inc., 2020) Aygün, Gülnur; Özyüzer, Lütfi; Aygun,G.; Cantas,A.; 01. Izmir Institute of Technology; 04.05. Department of Pyhsics; 04. Faculty of Science
    Recently, antimony selenide (Sb2Se3) absorber layer attracts so much attention in photovoltaic industry since it contains earth abundant, low cost and non-Toxic elements contrary to other chalcogenide based solar cells. In the present work, Sb2Se3 absorber films were grown by radio-frequency (RF) magnetron sputtering technique using binary single target and employing various argon flow rates, and then they were annealed under argon atmosphere inside a tubular furnace. Sb2Se3 thin films were investigated using X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, Raman spectroscopy, and UV-VIS NIR spectrophotometer. The effects of argon flow rate, one of the sputtering parameters, on the properties of the Sb2Se3 films were investigated. The significance of argon flow rate, that used during film deposition, on the observing of Se loss, antimony oxide formation and the change in the surface morphology was also addressed. We observed that the dominant crystal orientation varied with respect to argon flow rate. It was further detected that high argon flow rates cause the decomposition of Sb2Se3 structure and formation of antimony oxide phase. The overall analyses revealed that argon flow rate used while sputtering is effective in changing the structural, and optical properties of the Sb2Se3 thin films. © 2020 IEEE.
  • Conference Object
    Citation - Scopus: 1
    An Exploratory Case Study: Using Petri Nets for Modelling Microservice-Based Systems
    (Institute of Electrical and Electronics Engineers Inc., 2023) Soylu,G.K.; Demirörs, Onur; Demirors,O.; 03.04. Department of Computer Engineering; 03. Faculty of Engineering; 01. Izmir Institute of Technology
    The rapid evolution of cloud technology has led to the development of highly responsive and flexible applications. Microservice-based Architecture (MSbA) is a popular approach for creating cloud-compatible applications. However, MSbA presents challenges in system verification and analysis. This paper explores using Petri nets for modelling microservice-based systems. The proposed method utilises abstraction and composition techniques to model complex systems using 1-safe Petri nets. A case study on Banking as a Service (BaaS) demonstrates the suitability of Petri nets for modelling, analysis and verification of microservice-based systems. © 2023 IEEE.
  • Conference Object
    Forecasting Turkey Electricity Prices by Alpha-Stableperiodic Autoregressive Time Series
    (Institute of Electrical and Electronics Engineers Inc., 2023) Savacı, Ferit Acar; Tamci,E.; 01. Izmir Institute of Technology; 03.05. Department of Electrical and Electronics Engineering; 03. Faculty of Engineering
    Finite variance Gaussian time series are insufficient in forecasting irregular and sudden changes in electricity production and consumption due to the complexity of today's power grids. Such Levy type fluctuations in the generation and/or consumption of electricity might inevitably result in the impulsive behavior in the electricity prices. For this reason, using the alpha-stable time series (alpha(α)-stable Levy process), which have infinite variance and heavy-tailed distributions will be a more appropriate model for price forecasting. In this study, we have tested the alpha-stablePeriodic Autoregressive (PAR) time series with real data obtained from TURKISH MARKET & FINANCIAL SETTLEMENT CENTER (EPIAŞ) electricity prices and have compared this model with previously made forecasting stochastic models such as Gaussian-driven Autoregressive (AR). Our findings not only demonstrated the effectiveness of the alpha-stablePAR time series method in estimating electricity prices but also highlighted its superiority over the Gaussian-driven AR model for Turkish electricity prices. © 2023 IEEE.