Modelling on Multi-modal Circular Data using von Mises Mixture Distribution
نویسندگان
چکیده
منابع مشابه
Modelling Circular Data Using a Mixture of Von Mises and Uniform Distributions
The von Mises distribution is often useful for modelling circular data problems. We consider a model for which von Mises data is contaminated with a certain proportion of points uniformly distributed around the circle. Maximum likelihood estimation is used to produce parameter estimates for this mixture model. Computational issues involved with obtaining the maximum likelihood estimates for the...
متن کاملMML mixture modelling of multi - state , Poisson , von Mises circular and Gaussian distributionsChris
Minimum Message Length (MML) is an invariant Bayesian point estimation technique which is also consistent and eecient. We provide a brief overview of MML inductive inference (Wallace and Boulton (1968), Wallace and Freeman (1987)), and how it has both an information-theoretic and a Bayesian interpretation. We then outline how MML is used for statistical parameter estimation, and how the MML mix...
متن کاملModelling complex geological circular data with the projected normal distribution and mixtures of von Mises distributions
Circular data are commonly encountered in the earth sciences and statistical descriptions and inferences about such data are necessary in structural geology. In this paper we compare two statistical distributions appropriate for complex circular data sets: the mixture of von Mises and the projected normal distribution. We show how the number of components in a mixture of von Mises distribution ...
متن کاملApplying von Mises Distribution to Microphone Array Probabilistic Sensor Modelling
This paper deals with the problem of localizing and tracking a moving speaker over the full range around the mobile robot. The proposed algorithm is based on estimating the time difference of arrival by maximizing the weighted cross-correlation function in order to, by series of geometrical calculation, determine the azimuth angle of the detected speaker. A post processing technique is proposed...
متن کاملThe Generalized Von Mises Distribution
A generalization of the von Mises distribution, which is broad enough to cover unimodality as well as multimodality, symmetry as well as asymmetry of circular data, has shown up in different contexts. We study this distribution in some detail here and discuss its many features, some inferential and computational aspects, and we provide some important results including characterization propertie...
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: Communications for Statistical Applications and Methods
سال: 2007
ISSN: 2287-7843
DOI: 10.5351/ckss.2007.14.3.517