An angle-based multivariate functional pseudo-depth for shape outlier detection
نویسندگان
چکیده
منابع مشابه
Multivariate functional outlier detection
Functional data are occurring more and more often in practice, and various statistical techniques have been developed to analyze them. In this paper we consider multivariate functional data, where for each curve and each time point a p-dimensional vector of measurements is observed. For functional data the study of outlier detection has started only recently, and was mostly limited to univariat...
متن کاملShape-Based Myocardial Contractility Analysis Using Multivariate Outlier Detection
This paper presents a new approach to regional myocardial contractility analysis based on inter-landmark motion (ILM) vectors and multivariate outlier detection. The proposed spatio-temporal representation is used to describe the coupled changes occurring at pairs of regions of the left ventricle, thus enabling the detection of geometrical and dynamic inconsistencies. Multivariate tolerance reg...
متن کاملRejoinder to 'multivariate functional outlier detection'
First of all we would like to thank the editor, Professor Andrea Cerioli, for inviting us to submit our work and for requesting comments from some esteemed colleagues. We were surprised by the number of invited comments and grateful to their contributing authors, all of whom raised important points and/or offered valuable suggestions. We are happy for the opportunity to rejoin the discussion. R...
متن کاملComments on: Multivariate functional outlier detection
First of all, we would like to congratulate M. Hubert, P. Rousseeuw and P. Segaert for this very interesting and stimulating work. It is clear that functional data are becoming ubiquitous in many disciplines and the development of appropriate statistical techniques is clearly needed. Moreover, outliers are very likely to occur in this type of data, where many measurements are taken by applying ...
متن کاملMultivariate Spatial Outlier Detection
A spatial outlier is a spatially referenced object whose non-spatial attribute values are significantly different from the values of its neighborhood. Identification of spatial outliers can lead to the discovery of unexpected, interesting, and useful spatial patterns for further analysis. Previous work in spatial outlier detection focuses on detecting spatial outliers with a single attribute. I...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Multivariate Analysis
سال: 2016
ISSN: 0047-259X
DOI: 10.1016/j.jmva.2015.10.016