CATS: Clustering After Transformation and Smoothing

نویسندگان

  • Nicoleta Serban
  • Larry Wasserman
چکیده

CATS – Clustering After Transformation and Smoothing – is a technique for nonparametrically estimating and clustering a large number of curves. Our motivating example is a genetic microarray experiment but the method is very general. The method includes: transformation and smoothing multiple curves, multiple nonparametric testing for trends, clustering curves with similar shape, and nonparametrically inferring the misclustering rate.

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

On the reduction of the ordinary kriging smoothing effect

A simple but novel and applicable approach is proposed to solve the problem of smoothing effect of ordinary kriging estimate which is widely used in mining and earth sciences. It is based on transformation equation in which Z scores are derived from ordinary kriging estimates and then rescaled by the standard deviation of sample data and the sample mean is added to the result. It bears the grea...

متن کامل

Optimized fuzzy transformation for image deblocking

In this paper, the concept of fuzzy transformation is developed based on fuzzy ordering theory. The clustering property of the fuzzy transformation is investigated by deriving the distribution function of the fuzzy samples and is exploited to address the DCT coded image deblocking problem. In this application, the fuzzy transformation is actually a highly data-adaptive smoothing and sharpening ...

متن کامل

Effects of Ondansetron on Xylazine Induced Emesis in Cats

Objective- Vomiting frequently is reported after xylazine administration in cats. This study evaluates prophylactic antiemetic efficacy of ondansetron in cats sedated with xylazine HCl. Design- Experimental study. Animals- Six healthy adult cats from both genders were selected for the study. Interventions- Intramuscular injection of normal saline was administered an hour before intr...

متن کامل

A robust wavelet based profile monitoring and change point detection using S-estimator and clustering

Some quality characteristics are well defined when treated as response variables and are related to some independent variables. This relationship is called a profile. Parametric models, such as linear models, may be used to model profiles. However, in practical applications due to the complexity of many processes it is not usually possible to model a process using parametric models.In these cas...

متن کامل

Spatially Adaptive Temporal Smoothing for Reconstruction of Dynamic PET and Gated SPECT Images

In this paper we propose a method for spatio-temporal reconstruction of dynamic or gated image sequences. In a previous method we proposed, temporal smoothing in a Karhunen-Loève (KL) transform domain was used prior to reconstruction to reduce the effect of noise. Unlike the Bayesian priors that are usually used in image reconstruction, temporal KL smoothing is a data-driven approach that takes...

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 2005