Search results for "Variable"

El tractament de les formes nominals 'invariables' quant a nombre

1995

The starting claim of this paper is that it is not accidental that in Catalan, as in Spanish, invariable nominals regarding number end in the same form as the regular plural marker, i.e., s, and thus any analysis willing to explain these words has to take this fact into account. Under this assumption, different proposals are evaluated: the existence of a `zero'-plural morph, the blocking of s (plural marker)-insertion, the deletion of s-plural marker, the ambimorphic interpretation of -s+s, the unspecified blocking of one of the two ss, and the deletion of the s-stem. The latter analysis is favoured, except for compounds whose second element is already plural, in which case the ambimorphic …

Effects of wave function correlations on scaling violation in quasi-free electron scattering

1981

Abstract The scaling law in quasi-free electron scattering is broken due to the existence of exchange forces, leading to a finite mean value of the scaling variable y . This effect is considerably increased by wave function correlations, in particular by tensor correlations, similar to the case of the photonuclear enhancement factor κ.

Functional Data Analysis and Mixed Effect Models

2004

Panel studies in econometrics as well as longitudinal studies in biomedical applications provide data from a sample of individual units where each unit is observed repeatedly over time (age, etc.). In this context, mixed effect models are often applied to analyze the behavior of a response variable in dependence of a number of covariates. In some important applications it is necessary to assume that individual effects vary over time (age, etc.).

Albanese Maps and Fundamental Groups of Varieties With Many Rational Points Over Function Fields

2020

We investigate properties of the Albanese map and the fundamental group of a complex projective variety with many rational points over some function field, and prove that every linear quotient of the fundamental group of such a variety is virtually abelian, as well as that its Albanese map is surjective, has connected fibres, and has no multiple fibres in codimension one.

Combining one class fuzzy KNN’s

2007

This paper introduces a parallel combination of N > 2 one class fuzzy KNN (FKNN) classifiers. The classifier combination consists of a new optimization procedure based on a genetic algorithm applied to FKNN’s, that differ in the kind of similarity used. We tested the integration techniques in the case of N = 5 similarities that have been recently introduced to face with categorical data sets. The assessment of the method has been carried out on two public data set, the Masquerading User Data (www.schonlau.net) and the badges database on the UCI Machine Learning Repository (http://www.ics.uci.edu/~mlearn/). Preliminary results show the better performance obtained by the fuzzy integration …

Decision Suport System for Manufacturing Processes Reengineering based upon Fuzzy Logic Techniques

2012

Abstract This work presents a method for taking the decision of reengineering a production system, based upon fuzzy techniques. The main advantage of this method is, after authors' opinion, is the ease of its implementation together with the reduced time for gathering data and processing it. Multi-variable decision systems are usually based upon complicated mathematical methods and involved a large amount of data to be processed. The fuzzy approach presented here is based only on five input variables and one output variable. The data for the model are gathered by simple queries and quizzes. Human perception, the main point of fuzzy logic, is widely used here for gathering input data for the…

Fuzzy Logic for Medical Engineering: An Application to Vessel Segmentation

2007

Hierarchical Bayesian models for analysing fish biomass data. An application to Parapenaeus longirostris biomass data

2022

The Mediterranean International Trawl Survey (MEDITS) programme provides spatially referenced ecological data. We adopted a hierarchical Bayesian model to analyse Parapenaeus longirostris biomass data. The model comprises three parts, each of which identifies: the variability due to the explanatory variables, the variability due to the spatial domain (seen as a Gaussian Process) and the irregular component modelled as white noise. The estimated parameters show that some seabed characteristics affect biomass quantity and that the estimated behaviour of the Gaussian Process changes over different groups of years.

Civic Participation and Gender Beliefs: An Analysis of 46 Countries

2016

Gender equality has progressed a great deal in recent decades in response to modernisation, industrialisation, and the generally rising level of education. A transformation in gender beliefs has accompanied the progress on gender equality and beliefs about gender roles have mainly changed in countries in North America and Europe, while in Muslim and Asian countries they have remained the same. The analysis in this article focuses on civic participation and investigates its relation to equalitarian gender beliefs. Multi-level regression models and data from World Values Survey (WVS) collected from 46 countries in 2005 allow depicting the relationships. The findings show that membership in ci…

THE RELATIONSHIP BETWEEN CIVIC FACTORS AND THE MIDDLE PROFICIENCY LEVEL OF CIVIC KNOWLEDGE

2021

This study explores the relationship between civic and citizenship factors and the middle proficiency level of students’ civic knowledge in the Baltic countries: Estonia, Latvia and Lithuania. The study uses large scale data from the IEA’s International Civic and Citizenship Education Study (ICCS) 2016. According to ICCS 2016, 39% of students from the three Baltic countries and only 26% of students from the Nordic countries had a middle proficiency level of civic knowledge. This middle proficiency level is the largest group in comparison to other levels. Therefore, the study aims to recognise the differences between the highest and lowest achievements in the middle proficiency level of civi…