Ghosh Ashish, Shankar B Uma, Meher Saroj K
Machine Intelligence Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India.
Neural Netw. 2009 Jan;22(1):100-9. doi: 10.1016/j.neunet.2008.09.011. Epub 2008 Oct 9.
A new model for neuro-fuzzy (NF) classification systems is proposed. The motivation is to utilize the feature-wise degree of belonging of patterns to all classes that are obtained through a fuzzification process. A fuzzification process generates a membership matrix having total number of elements equal to the product of the number of features and classes present in the data set. These matrix elements are the input to neural networks. The effectiveness of the proposed model is established with four benchmark data sets (completely labeled) and two remote sensing images (partially labeled). Different performance measures such as misclassification, classification accuracy and kappa index of agreement for completely labeled data sets, and beta index of homogeneity and Davies-Bouldin (DB) index of compactness for remotely sensed images are used for quantitative analysis of results. All these measures supported the superiority of the proposed NF classification model. The proposed model learns well even with a lower percentage of training data that makes the system fast.
提出了一种新的神经模糊(NF)分类系统模型。其动机是利用通过模糊化过程获得的模式对所有类别的逐特征归属度。模糊化过程生成一个元素总数等于数据集中特征数量与类别数量乘积的隶属度矩阵。这些矩阵元素是神经网络的输入。通过四个基准数据集(完全标注)和两幅遥感图像(部分标注)验证了所提模型的有效性。对于完全标注的数据集,使用了不同的性能指标,如误分类、分类准确率和卡帕一致性指数;对于遥感图像,使用了同质性贝塔指数和紧致性戴维斯-布尔丁(DB)指数进行结果的定量分析。所有这些指标都支持所提NF分类模型的优越性。所提模型即使在训练数据比例较低的情况下也能很好地学习,从而使系统运行速度更快。