İmza Doğrulama Alanında Transfer Öğrenme Tekniklerinin ve Makine Öğrenmesi Yöntemlerinin Performans Değerlendirilmesi

Yıl 2025, Cilt: 9 Sayı: 1, 74 - 82, 31.07.2025

Yasin Özkan

Öz

İmza doğrulama, biyometrik güvenlik sistemlerinde önemli bir rol oynamaktadır ve geleneksel yöntemler, doğrulama doğruluğunda sınırlamalara neden olabilmektedir. Ancak, geleneksel imza doğrulama tekniklerinin sınırlı veri ve özelliklerle çalışması, doğrulama süreçlerinin doğruluğunu olumsuz etkileyebilmektedir. Bu çalışmada, transfer öğrenme ve makine öğrenmesi algoritmalarının birleşimiyle, imza doğrulama alanındaki performans artışı araştırılmıştır. BHSig260 Hindi veri setinde bulunan imzalar üzerinde gerçekleştirilen deneylerde, transfer öğrenme modelleri (ResNet50, MobileNetV2, VGG16, InceptionV3, EfficientB7, DenseNet169) tek başlarına yüksek doğruluk oranları elde etmiştir, özellikle VGG16 modeli %93.77 doğruluk ile en iyi performansı göstermiştir. Çalışmanın ilerleyen aşamalarında, transfer öğrenme modellerine K-en yakın komşu (KNN), Destek Vektör Makineleri (SVM) ve Random Forest gibi makine öğrenmesi algoritmaları eklenmiş ve doğrulama performansı daha da iyileştirilmiştir. EfficientB7 + Random Forest kombinasyonu, %95.24 doğruluk ile en yüksek başarıyı elde etmiştir. Elde edilen sonuçlar, transfer öğrenme tekniklerinin makine öğrenmesi algoritmalarıyla entegrasyonunun, imza doğrulama görevlerinde doğruluk oranlarını önemli ölçüde artırdığını ortaya koymaktadır. Bu birleşim, biyometrik güvenlik sistemlerinin güvenilirliğini ve verimliliğini önemli ölçüde iyileştiren etkili bir yöntem olarak öne çıkmaktadır. Çalışmanın bulguları, imza doğrulama sistemlerinin gelecekteki gelişimi için önemli bir referans sağlayarak, bu alandaki daha hassas ve güvenilir çözümlerin geliştirilmesine katkı sunacaktır.

Anahtar Kelimeler

İmza doğrulama , Makine öğrenmesi , KNN , SVM , Random Forest

Performance Evaluation of Transfer Learning Techniques and Machine Learning Methods in Signature Verification

Öz

Signature verification plays an important role in biometric security systems and traditional methods can lead to limitations in verification accuracy. However, traditional signature verification techniques work with limited data and features, which can negatively affect the accuracy of verification processes. In this study, we investigate the performance improvement in signature verification by combining transfer learning and machine learning algorithms. In the experiments performed on signatures from the BHSig260 Hindi dataset, the transfer learning models (ResNet50, MobileNetV2, VGG16, InceptionV3, EfficientB7, DenseNet169) achieved high accuracy rates on their own, especially the VGG16 model performed the best with 93.77% accuracy. In the later stages of the study, machine learning algorithms such as K-nearest neighbor (KNN), Support Vector Machines (SVM) and Random Forest were added to the transfer learning models to further improve the validation performance. The combination of EfficientB7 + Random Forest achieved the highest performance with 95.24% accuracy. The results show that the integration of transfer learning techniques with machine learning algorithms significantly improves the accuracy of signature verification tasks. This combination stands out as an effective method that significantly improves the reliability and efficiency of biometric security systems. The findings of the study will provide an important reference for the future development of signature verification systems, contributing to the development of more accurate and reliable solutions in this field.

Anahtar Kelimeler

Signature verification , Machine learning , CNN , transfer learning , Biometric Security , Hindi Signature Dataset

Kaynakça

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