Least squares for practitioners.
L'implication statistique entre variables modales
L'implication statistique, selon R.Gras, permet d'associer à un ensemble de variables binaires ou fréquentielles un préordre représentable par un graphe non symétrique et par une hiérarchie ascendante. L'analyse d'un questionnaire à modalités totalement ordonnées nous contraint, pour conserver l'information maximale, à étendre cette notion à des variables modales et, par suite et a fortiori, à des variables ordinales qui s'y ramènent. A la suite de cette construction, on examine les contributions...
Modélisation statistique de la température de surface de la mer
Multisensor estimation: New distributed algorithms.
Nonparametric recursive aggregation process
In this work we introduce a nonparametric recursive aggregation process called Multilayer Aggregation (MLA). The name refers to the fact that at each step the results from the previous one are aggregated and thus, before the final result is derived, the initial values are subjected to several layers of aggregation. Most of the conventional aggregation operators, as for instance weighted mean, combine numerical values according to a vector of weights (parameters). Alternatively, the MLA operators...
Notes on the bias of dissimilarity indices for incomplete data sets: the case of archaelogical classification.
The problem of missing data is particularly present in archaeological research where, because of the fragmentariness of the finds, only a part of the characteristics of the whole object can be observed. The performance of various dissimilarity indices differently weighting missing values is studied on archaeological data via a simulation. An alternative solution consisting in randomly substituting missing values with character sets is also examined. Gower's dissimilarity coefficient seems to be...
Numerical taxonomy: a missing link for case-based reasoning and autonomous agents.
Numerical taxonomy, which uses numerical methods to classify and relate items whose properties are non-numerical, is suggested as both an advantageous tool to support case-based reasoning and a means for agents to exploit knowledge that is best expressed in cases. The basic features of numerical taxonomy are explained, and discussed in application to a problem where human agents with differing views obtain solutions by negotiation and by reference to knowledge that is essentially case-like: allocation...
On ...semigroups of probability distribution functions II.
Quality of optimum statistical estimates in case of ambiguity
Radioactivity half-lives considered as data.
Random thresholds for linear model selection
A method is introduced to select the significant or non null mean terms among a collection of independent random variables. As an application we consider the problem of recovering the significant coefficients in non ordered model selection. The method is based on a convenient random centering of the partial sums of the ordered observations. Based on L-statistics methods we show consistency of the proposed estimator. An extension to unknown parametric distributions is considered. Simulated examples...
Reconstruction des phases en cristallographie par maximum d'entropie
Removal of ocular artifacts in the EEG through wavelet transform without using an EOG reference channel.
Representación de datos en meteorología mediante gráficos animados: episodios de lluvia.
Los campos escalares, bidimensionales y dependientes del tiempo, se representan generalmente en Meteorología mediante una sucesión de imágenes o análisis separados con una interdistancia temporal adecuada. Esta técnica alcanza su máximo desarrollo en lo que se conoce como gráfico animado.En el presente artículo se describen brevemente los procesos que, a partir de los datos, culminan con la generación de un análisis, imagen o fotograma, particularizando al caso de episodios de lluvia. Tras un resumen...
Semantic evaluation of prognostic statements on the base of probabilistic parameters
Some properties and applications of the stuttering generalized Waring distribution.
Souvislost výsledků přijímacího řízení s úspěšností studia na MFF
Specifying and simulating complex models using Bassist.
Spherical Probable Error (Spe) and its Estimation
Statistical approach to proof theory