Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/20.500.11779/1926
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Article Understanding Covid-19 Mobility Through Human Capital: A Unified Causal Framework(Springer, 2024) Bilgel, Fırat; Karahasan, Burhan CanConference Object Yüz Derinlik Imgelerinde Güdümlü İniş Yöntemini Kullanarak Nirengi Noktası Bulma(Institute of Electrical and Electronics Engineers Inc., 2015) Akarun, Lale; Camgöz, Necati Cihan; Gökberk, BerkConference Object Turkish Broadcast News Transcription Revisited(Institute of Electrical and Electronics Engineers Inc., 2018) Arisoy, Ebru; Saraglar, MuratBook Part The Evolution of Water Diplomacy Frameworks: The Euphrates-Tigris Basin as a Case Study(Springer Nature, 2023) Kibaroğlu, AyşegülEditorial The Devil Is in the Det[Ai]Ls: AI Agents, Ghost Students, and the Crisis of Verified Presence in an Agentic AI World(International Council for Open and Distance Education, 2026) Crompton, Helen; Kurban, Caroline Fell; Bozkurt, ArasBook Part Technology in Assessment(Taylor and Francis, 2025) Chue, Kah Loong; Birgili, BengiBook Part Precarious Work and Individual Deprivation during the Post-COVID-19 Era: Lessons from Turkey(Edward Elgar Publishing Ltd., 2025) Karahasan, Burhan Can; Kinikoğlu, Canan NeşeArticle Robust HMM-Based Remaining Useful Life Estimation Using a Ridge-Regularized EM Algorithm(MDPI, 2026) Kucukdag, Halime Beyza; Kirkil, Gokhan; Hekimoglu, MustafaEstimating the remaining useful life (RUL) of engineering systems is crucial for maintenance planning and the reliability of complex mechanical units. Accurate RUL predictions support timely interventions and help to prevent unexpected failures. This study proposes a statistically robust framework that models degradation signals up to the end of life using a hidden Markov model (HMM) with a simple-failure structure and an absorbing terminal state. The proposed method estimates state-dependent linear emission parameters and transition probabilities using a ridge-regularized expectation-maximization (EM) algorithm. The ridge penalty stabilizes slope estimates under limited data, while a robust Huber-based scale estimator reduces sensitivity to outliers in the sensor-derived health indicator. RUL is computed as a weighted expected time to absorption, combining transient-state survival characteristics with smoothed posterior-state probabilities obtained via the forward-backward algorithm. This yields a low-variance state-aware estimator that preserves the probabilistic structure of the HMM. Simulation studies show that the proposed ridge-regularized EM significantly reduces parameter variance and improves predictive accuracy compared with the baseline weighted least squares EM (WLS-EM). A real-data case analysis demonstrates further improvements in RUL estimation accuracy and smoother, more reliable prediction trajectories. Overall, the framework provides a robust and interpretable approach for practical prognostics applications.Article Mindfulness-Based Self Efficacy Scale-Revised (MSES-R): Turkish Adaptation Study(Ankara University, 2017) Atalay, Zümra; Bulgan, Gökçe; Aydın, Utkun; Taylan, Rukiye Didem; Burcu Özgülük, S.Conference Object Feasibility of Distorted Born Iterative Method for Detecting Early Stage of Heart Failure(Institute of Electrical and Electronics Engineers Inc., 2020) Dogu, Semih; Bilgin, Egemen; Joof, Sulayman; Akinci, Mehmet NuriArticle Exact Construction of BS-Assisted MSCR Codes With Link Constraints(IEEE-Inst Electrical Electronics Engineers Inc, 2022) Arslan, Suayb S.It is clear that 5G network resources would be consumed by heavy data traffic owing to increased mobility, slicing, and layered/distributed storage system architecture. The problem is elevated when multiple node failures are repaired to address service quality requirements. Typical approaches include individual or cooperative data regeneration to efficiently utilize the available bandwidth. It is observed that storage systems of 5G and beyond technologies shall have a multi-layer architecture in which base stations (BS) would be present. Moreover, communication with each layer would be subject to various communication costs and link constraints. Under limited BS assistance and cooperation, the trade-off between storage per node and communication bandwidth has been established. In this trade-off, two operating points, namely minimum storage, and bandwidth regeneration are particularly important. In this study, we first identify the optimal number of BS use at the minimum storage regeneration point. An explicit code construction is provided subsequently for the exact minimum storage regeneration whereby each layer may help the repair process subject to a communication link constraint.Book Part Emotion Recognition From Speech via the Use of Different Audio Features, Machine Learning and Deep Learning Algorithms(AHFE International, 2023) Sayar, Alperen; Gümüş, Fatma; Çakar, Tuna; Ertuğrul, Seyit; Bozkan, TunahanBook Part Emotional Analysis of Candidates During Online Interviews(AHFE International, 2023) Sayar, Alperen; Güvençli, Mert; Çakar, Tuna; Ertuğrul, Seyit; Bozkan, TunahanConference Object Developing an Automatic Transcription and Retrieval System for Spoken Lectures in Turkish(Institute of Electrical and Electronics Engineers Inc., 2017) Arisoy, EbruArticle During the Covid-19 Pandemic, Students’ Opinions on Distance Education in Department of Engineering(International Association of Online Engineering, 2022) Zaripova, Zulfiya F.; Bayanova, Almira R.; Karahoca, Dilek; Chikileva, Lyudmila S.; Lyalyaev, Sergey V.; Baoyun, XuConference Object Değişimli Oto-Kodlayıcılar Kullanılarak Birleşik Kaynak Ayırtstırma ve Sınıflandırma(Institute of Electrical and Electronics Engineers Inc., 2020) Karamatli, Ertug; Kirbiz, Serap; Cemgil, Ali Taylan; Hizli, CaglarBook Part Children’s Rights(Edward Elgar Publishing Ltd., 2023) Kejanlioglu, Atagün; Van Praagh, ShaunaConference Object Corner Detection by Local Zernike Moments(Institute of Electrical and Electronics Engineers Inc., 2015) Ozbulak, Gokhan; Gokmen, MuhittinBook Part Critical Social Perspectives on Automation and Job Impacts(Elsevier, 2026) Toktaş-Palut, PeralConference Object Biology, Real Time and Multimodal Design Cell-Signaling as a Realtime Principle in Multimodal Design(Education and Research in Computer Aided Architectural Design in Europe, 2015) Teixeira, Frederico Fialho
