COMPARISON STUDY OF DISTANCE MEASURES USING K- NEAREST NEIGHBOR ALGORITHM ON BANKRUPTCY PREDICTION

Yıl 2020, Cilt: 19 Sayı: 38, 224 - 233, 31.12.2020

Gizem Dilki Özlem Deniz Başar

Öz

Machine learning is a discipline that is actively used in many areas such as medical, education and business management, from biotechnology to educational science, natural language processing to emotion analysis. As the area of use expanded, machine learning, which was looking for solutions to different problems such as regression, classing and clustering, also started to be used in the problem of bankruptcy prediction. As the number of algorithms increases in machine learning discipline, it is possible to achieve different accuracy rates as parameters change. For this purpose, the k Nearest Neighbor algorithm was involved in our study and the distance measure with the best accuracy were determined as a result of the classification process using different distance measures (Euclidean, Manhattan, Chebysev, Minkowski). The data set is divided into 70% training - 30% test; algorithms are compared using various performance criteria.

Anahtar Kelimeler

bankruptcy prediction, distance measures, machine learning, k-nearest neighbor

İŞLETMELERİN İFLAS TAHMİNİNDE K- EN YAKIN KOMŞU ALGORİTMASI ÜZERİNDEN UZAKLIK ÖLÇÜTLERİNİN KARŞILAŞTIRILMASI

Öz

Makine öğrenmesi biyoteknoloji alanından eğitim bilimlerine, doğal dil işlemeden duygu analizine kadar medikal, eğitim, işletme gibi birçok alanda aktif olarak kullanılan bir disiplindir. Kullanım alanı genişledikçe regresyon, sınıflama, kümeleme gibi farklı problemlere çözüm arayan makine öğrenmesi, iflas tahmini probleminde de kullanılmaya başlamıştır. Makine öğrenmesi disiplininde algoritma sayısı arttıkça, parametreler değiştikçe farklı doğruluk oranlarına ulaşmak mümkündür. Bu amaçla, çalışmada k En Yakın Komşu algoritmasına yer verilmiş; farklı uzaklık ölçütleri (Euclidean, Manhattan, Chebysev, Minkowski) kullanılarak yapılan sınıflandırma işlemi sonucunda en yüksek doğruluk oranına sahip uzaklık ölçütü belirlenmiştir. Veri seti %70 eğitim- %30 test seti olarak bölünmüş; çeşitli performans ölçütleri kullanılarak algoritmalar birbiriyle karşılaştırılmıştır.

Anahtar Kelimeler

iflas tahmini, k-en yakın komşu, makine öğrenmesi, uzaklık ölçütleri

Kaynakça

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