Browsing WoS İndeksli Yayınlar Koleksiyonu by Author "Dağ, Hasan"
Now showing items 21-25 of 25
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A Recommender Model Based on Trust Value and Time Decay Improve the Quality of Product Rating Score in E-commerce Platforms
Işık, Muhittin; Dağ, Hasan (IEEE, 2017)Most of the existing products rating score algorithms do not take fake accounts and time decay of users' ratings into account when creating the list of recommendations. The trust values and the time decay of users' ratings ... -
Sparsity Preserving Computation for Spectral Projectors
Yetkin, E. Fatih; Dağ, Hasan (Amer Inst Physics, 2011)Several areas of applications such as model order reduction preconditioner design and eigenvalue problems for spectral projectors can be found in the literature. In this paper a fast and sparsity preserving approach for ... -
A sparsity-preserving spectral preconditioner for power flow analysis
Yetkin, Emrullah Fatih; Dağ, Hasan (TUBITAK Scientific & Technical Research Council Turkey, 2016)Due to the ever-increasing demand for more detailed and accurate power system simulations the dimensions of mathematical models increase. Although the traditional direct linear equation solvers based on LU factorization ... -
Towards Faster Branch Outage Simulations Using Simulated Annealing and Parallel Programming
Ceylan, Oğuzhan; Özdemir, Aydoğan; Dağ, Hasan (IEEE, 2009)Contingency studies such as branch outage and generator outage are among important studies of energy management centers operations. Branch outage modeling on the other hand is one of the basic steps of post-outage state ... -
Website category classification using fine-tuned BERT language model
Demirkıran, Ferhat; Çayır, Aykut; Ünal, Uğur; Dağ, Hasan (Institute of Electrical and Electronics Engineers Inc., 2020)The contents on the Word Wide Web is expanding every second providing web users a rich content. However, this situation may cause web users harm rather than good due to its harmful or misleading information. The harmful ...