Yazar "Gülcü, Ayla" için WOS İndeksli Yayınlar / WOS Indexed Publications listeleme
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A Bi-criteria Hybrid Genetic Algorithm with Robustness Objective for the Course Timetabling Problem
Akkan, Can; Gülcü, Ayla (Elsevier, 2018)Traditional methods of generating timetables may yield high-quality solutions, but they may not yield robust solutions that may easily be adapted to changing inputs. Incorporating late changes by making minimum modifications ... -
Bi-criteria Simulated Annealing for the Curriculum-based Course Timetabling Problem With Robustness Approximation
Akkan, Can; Gülcü, Ayla; Kuş, Zeki (Springer, 2022)In the process of developing a university’s weekly course timetable, changes in the data, such as the available time periods of professors or rooms, render the timetable infeasible, requiring the administrators to repair ... -
Clustering Electricity Market Participants Via FRM Models
Gülcü, Ayla; Çalışkan, Sedrettin (IOS Press, 2020)Collateral mechanism in the Electricity Market ensures the payments are executed on a timely manner; thus maintains the continuous cash flow. In order to value collaterals, Takasbank, the authorized central settlement ... -
Hyper-Parameter Selection in Convolutional Neural Networks Using Microcanonical Optimization Algorithm
Gülcü, Ayla; Kuş, Zeki (The Institute of Electrical and Electronics Engineers, 2020)The success of Convolutional Neural Networks is highly dependent on the selected architecture and the hyper-parameters. The need for the automatic design of the networks is especially important for complex architectures ... -
Integer Programming Versus Constraint Programming: a Course Timetabling Case Study
Gülcü, Ayla; Bulkan, Serol (University of Cincinnati Industrial Engineering, 2019)In this study, two solution approaches are compared for a real-world, moderate-size but a highly constrained university course timetabling problem. The first approach is developing an integer programming model and solving ... -
Minimum Penalty Perturbation Heuristics for Curriculum-Based Timetables Subject to Multiple Disruptions
Akkan, Can; Gülcü, Ayla; Kuş, Zeki (Elsevier, 2021)Course timetables are often rendered infeasible due to unexpected changes in requirements and must be repaired. Given an initial timetable, planners prefer a repaired timetable whose quality is worsened as little as possible ... -
Multi-Objective Simulated Annealing for Hyper-Parameter Optimization in Convolutional Neural Networks
Gülcü, Ayla; Kuş, Zeki (PeerJ, Inc., 2021)In this study, we model a CNN hyper-parameter optimization problem as a bi-criteria optimization problem, where the first objective being the classification accuracy and the second objective being the computational ... -
Novel Surrogate Measures Based on a Similarity Network for Neural Architecture Search
Kuş, Zeki; Akkan, Can; Gülcü, Ayla (IEEE, 2023)We propose two novel surrogate measures to predict the validation accuracy of the classification produced by a given neural architecture, thus eliminating the need to train it, in order to speed up neural architecture ... -
Robust University Course Timetabling Problem Subject to Single and Multiple Disruptions
Gülcü, Ayla; Akkan, Can (Elsevier, 2020)University course timetables are often finalized in stages, in between which, changes in the data make the earlier version infeasible. As each version is announced to the community, it is desirable to have a robust initial ... -
Search Space Sampling by Simulated Annealing for Identifying Robust Solutions in Course Timetabling
Akkan, Can; Gülcü, Ayla; Kuş, Zeki (Institute of Electrical and Electronics Engineers Inc., 2020)For many combinatorial optimization problems, it is important to identify solutions that can be repaired without degrading solution quality in case changes in the data associated with the constraints make the initial ... -
Veri Madenciliği Teknikleriyle Türkçe Web Sayfalarının Kategorize Edilmesi
Şekerci Hüsem, Seçil; Gülcü, Ayla (IEEE, 2017)Günümüzde artan veri miktarıyla başa çıkabilmek için tek başına insan gücünün kullanılması mümkün görünmemektedir. Bu sebeple benzer dokümanları bir araya gruplayabilecek ya da dokümanları, önceden tanımlı kategorilere ...