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This dissertation is composed of four articles describing inference and visualization of periodic sequences.In the first article, a nonparametric method is proposed for estimating the period and values of a periodic sequence when the data are evenly spaced in time. Theperiod is estimated by a...
Persistent link: https://www.econbiz.de/10009464956
A central problem in estimating per unit costs of production originates from the fact that most farms producemultiple outputs and standard farm-accounting data are only available at the whole-farm level. The seeminglyunrelated regression (SUR) approach is used to estimate per unit production...
Persistent link: https://www.econbiz.de/10009442619
Persistent link: https://www.econbiz.de/10010353278
clustering models based on Gaussian mixture models (GMMs) which are fitted with the use of the recently developed variational ….e., the temporal usage behaviour, and developing clustering algorithms suitable for high dimensional data based on the use of …
Persistent link: https://www.econbiz.de/10009438102
Due to the change in attitudes and lifestyles, people expect to find new partners and friends via various ways now-a-days. Online dating networks create a network for people to meet each other and allow making contact with different objectives of developing a personal, romantic or sexual...
Persistent link: https://www.econbiz.de/10009438155
small number of replications per variable, and HDLLSS data refer to HDLSS data observed over time. Clustering technique …, mass spectrometry data, pattern recognition. Most current clustering algorithms for HDLSS and HDLLSS data are adaptations … addition, available algorithms often exhibit poor clustering accuracy and stability for non-normal data. Simulations show that …
Persistent link: https://www.econbiz.de/10009464047
This study proposes one plausible procedure to address two methodological issues,which are common in micro- and macro- econometric analyses, for the full realization ofresearch potential brought by recently available high dimensional data. To address the issue ofhow to infer the causal structure...
Persistent link: https://www.econbiz.de/10009465107
, data mining method clustering was undertaken to identify the customersegments. Two different clustering methods were tested …
Persistent link: https://www.econbiz.de/10009467253
model (GPPM) in which the partition process is predictor-dependent. The GPPM generalizes DP clustering to relax the …
Persistent link: https://www.econbiz.de/10009475421
Ranked preference data arise when a set of judges rank, in order of their preference, a set of objects. Such data arise in preferential voting systems and market research surveys. Covariate data associated with the judges are also often recorded. Such covariate data should be used in conjunction...
Persistent link: https://www.econbiz.de/10009475695