Bias-Correction Fuzzy C-Regressions Algorithm

نویسندگان

  • Miin-Shen Yang
  • Yu-Zen Chen
  • Yessica Nataliani
چکیده

In fuzzy clustering, the fuzzy c-means (FCM) algorithm is the most commonly used clustering method. However, the FCM algorithm is usually affected by initializations. Incorporating FCM into switching regressions, called the fuzzy c-regressions (FCR), has also the same drawback as FCM, where bad initializations may cause difficulties in obtaining appropriate clustering and regression results. In this paper, we proposed the bias-correction fuzzy c-regressions (BFCR) algorithm by incorporating bias-correction FCM (BFCM) into switching regressions. Some numerical examples were used to compare the proposed algorithm with some existing fuzzy c-regressions methods. The results indicated the superiority and effectiveness of the proposed BFCR algorithm.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Bias-correction fuzzy clustering algorithms

Keywords: Cluster analysis Fuzzy clustering Fuzzy c-means (FCM) Initialization Bias correction Probability weight a b s t r a c t Fuzzy clustering is generally an extension of hard clustering and it is based on fuzzy membership partitions. In fuzzy clustering, the fuzzy c-means (FCM) algorithm is the most commonly used clustering method. Numerous studies have presented various generalizations o...

متن کامل

CPU and GPU Behaviour Modelling Versus Sequential and Parallel Bias Field Correction Fuzzy C-means Algorithm Implementations

The correction of images corrupted by bias field artefact is still challenging task both at accuracy level as on the computational plane. The work in this paper focus on the second constraint by giving mathematical models of experimental execution time per iteration ETPI(s) on GPU and CPU implementations and speed-ups GPU/CPU(x) of the iterative Bias Field Correction Fuzzy C-means clustering Al...

متن کامل

A Gaussian kernel-based fuzzy c-means algorithm with a spatial bias correction

Article history: Received 13 September 2006 Received in revised form 28 February 2008 Available online 9 May 2008 Communicated by A.M. Alimi

متن کامل

Segmentation of longitudinal brain MR images using bias correction embedded fuzzy c-means with non-locally spatio-temporal regularization

We propose an automated method for segmentation of brain tissues in longitudinal MR images. In the proposed method, images acquired at each time point are first separately segmented into white matter, gray matter, and cerebrospinal fluid by bias correction embedded fuzzy c-means. Intensities differences are then defined as similarities of each voxel to the cluster centroids. After being normali...

متن کامل

Generalized rough fuzzy c-means algorithm for brain MR image segmentation

Fuzzy sets and rough sets have been widely used in many clustering algorithms for medical image segmentation, and have recently been combined together to better deal with the uncertainty implied in observed image data. Despite of their wide spread applications, traditional hybrid approaches are sensitive to the empirical weighting parameters and random initialization, and hence may produce less...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015