Finsler度量在KNN算法中的应用研究

Research on Finsler Metric in KNN Algorithm

为了克服传统K近邻(Knearest neighbor,KNN)算法在距离定义上的不足,提出了一种基于Finsler度量的KNN算法(Finsler metric KNN,FMKNN)。该算法将样本点间的距离定义为Finsler度量,保留了样本属性对样本间距离度量的影响,使得样本点间的距离度量更具一般性。在手写体数据集上的实验表明,FMKNN算法的分类准确率高于传统KNN算法。

In order to overcome the shortcomings of traditional K nearest neighbor （KNN） algorithms in distance definition, this paper proposes a new KNN algorithm based on Finsler metric, FMKNN. The algorithm defines the distance between sample points as the Finsler metric and preserves the distance between sample properties, making the distance between sample points more general. The experiment on handwritten data sets shows that, the classification accuracy of FMKNN algorithm is higher than traditional KNN algorithms.