Results 11 to 20 of about 19,155,994 (294)

Count data models for demographic data∗ [PDF]

open access: yesMathematical Population Studies, 1994
"This paper deals with the estimation of single equation models in which the counts are regressed on a set of observed individual characteristics such as age, gender, or nationality.... We propose a generalized event count model to simultaneously allow for a wide class of count data models and account for over- and underdispersion.
Winkelmann, Rainer, Zimmermann, Klaus F
openaire   +3 more sources

Model Based Clustering for Mixed Data: clustMD [PDF]

open access: yes, 2015
A model based clustering procedure for data of mixed type, clustMD, is developed using a latent variable model. It is proposed that a latent variable, following a mixture of Gaussian distributions, generates the observed data of mixed type.
Gormley, Isobel Claire   +1 more
core   +3 more sources

Digital Transformation of Agriculture through the Use of an Interoperable Platform

open access: yesSensors, 2020
The continuous evolution of the agricultural sector justifies the incorporation and adaptation of the latest technologies. Nowadays, managing crops is possible through Internet-based technologies.
Juan Antonio López-Morales   +2 more
doaj   +1 more source

Observation Centric Sensor Data Model [PDF]

open access: yes, 2010
Management of sensor data requires metadata to understand the semantics of observations. While e-science researchers have high demands on metadata, they are selective in entering metadata.
Schneider, Philipp, Wombacher, Andreas
core   +6 more sources

How to work together for engineering materials!

open access: yesMaterials Genome Engineering Advances, 2023
To share and utilize data effectively for collaborative work, a common understanding of the knowledge behind the data, including its context and meaning, is a fundamental requirement.
Shuichi Iwata
doaj   +1 more source

Hierarchically nested factor model from multivariate data [PDF]

open access: yes, 2007
We show how to achieve a statistical description of the hierarchical structure of a multivariate data set. Specifically we show that the similarity matrix resulting from a hierarchical clustering procedure is the correlation matrix of a factor model, the
Anderberg M. R.   +9 more
core   +1 more source

A data oriented framework for developing flexible information systems

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010
As a consequence of a rapidly changing environment, the success of organizations is dependent upon the ongoing and immediate adjustments of their information systems as reactions to these changes.
František Dařena
doaj   +1 more source

IVOA Recommendation: Data Model for Astronomical DataSet Characterisation

open access: yes, 2011
This document defines the high level metadata necessary to describe the physical parameter space of observed or simulated astronomical data sets, such as 2D-images, data cubes, X-ray event lists, IFU data, etc..
Bonnarel, Francois   +6 more
core   +1 more source

INVARIANT MODEL FOR ESTIMATION OF THE ATMOSPHERE TRANSMITTING EFFICIENCY AT OBJECTS MONITORING IN THE OPTICAL SPECTRAL RANGE [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2012
Estimation problem of the atmosphere influence on radiation in the middle and distant infra-red range for the increasing of results reliability at aircraft monitoring is considered.
A. V. Demin   +1 more
doaj  

Supply Chain Management: A Structured Narrative Review of Current Challenges and Recommendations for Action

open access: yesLogistics, 2023
Background: By examining the recent advancements in technology, particularly the transformation of material into digital flows and its impact on customer demands, the aim of this paper is to investigate supply chain management (SCM) by analyzing seven ...
Herbert Jodlbauer   +4 more
doaj   +1 more source

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