Results 11 to 20 of about 396,841 (260)

A Complete Characterization of the Linear, Log-Linear, and Semi-Log Incomplete Demand System Models

open access: yesJournal of Agricultural and Resource Economics, 2002
This study extends LaFrance's (1985, 1986, 1990) previous research by deriving the necessary parameter restrictions for two additional classes of incomplete demand system models to be integrable.
Roger H. von Haefen
doaj   +1 more source

A Framework to Interpret Nonstandard Log-Linear Models

open access: yesAustrian Journal of Statistics, 2016
The formulation of log-linear models within the framework of Generalized Linear Models offers new possibilities in modeling categorical data. The resulting models are not restricted to the analysis of contingency tables in terms of ordinary hierarchical ...
Patrick Mair
doaj   +1 more source

On the Occurrence of Boundary Solutions in Two-Way Incomplete Tables

open access: yesRevstat Statistical Journal, 2020
The analysis of incomplete contingency tables is an important problem, which is also of practical interest. In this paper, we consider boundary solutions under nonignorable nonresponse models in two-way incomplete tables with data on both variables ...
Sayan Ghosh , Palaniappan Vellaisamy
doaj   +1 more source

Question classification with log-linear models

open access: yesProceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval, 2006
Question classification has become a crucial step in modern question answering systems. Previous work has demonstrated the effectiveness of statistical machine learning approaches to this problem. This paper presents a new approach to building a question classifier using log-linear models.
Blunsom, P, Kocik, K, Curran, J
openaire   +2 more sources

MODEL LOG-LINEAR FAKTOR-FAKTOR YANG MEMPENGARUHI HIPERTENSI (STUDI KASUS: RSUD ABDOE RAHEM SITUBONDO)

open access: yesE-Jurnal Matematika, 2012
The purpose of this study was to determine the effect of the factors age, sex, obesity, family history (heredity), and smoking habits on hypertension status. The research data is secondary data obtained from the medical records of disease in hospitals in
IMAMUDDIN KAMIL   +2 more
doaj   +1 more source

Ordinal Log-Linear Models for Contingency Tables

open access: yesFolia Oeconomica Stetinensia, 2016
A log-linear analysis is a method providing a comprehensive scheme to describe the association for categorical variables in a contingency table. The log-linear model specifies how the expected counts depend on the levels of the categorical variables for ...
Brzezińska Justyna
doaj   +1 more source

Acidentes de trabalho em Barcelona (Espanha), no período de 1992-1993 Work accidents in Barcelona (Spain), from 1992 to 1993

open access: yesRevista de Saúde Pública, 1998
INTRODUÇÃO: As estatísticas dos acidentes de trabalho, como qualquer outro sistema de notificação, devem servir de base para determinar prioridades e decidir quais medidas preventivas devem ser adotadas.
Rosana F. Sampaio   +3 more
doaj   +1 more source

A log linear Poisson autoregressive model to understand COVID-19 dynamics in Saudi Arabia

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2022
Background On March 2, 2020, the first case of COVID-19 infection in Saudi Arabia was identified and announced by the health authorities. From first week of March, the number of new confirmed COVID-cases has gradually increased, reaching 2932 confirmed ...
Salem Mubarak Alzahrani
doaj   +1 more source

Structure learning: some testing problems

open access: yesLietuvos Matematikos Rinkinys, 2005
The work is based on data about the prevalence of congenital anomalies among newborns in Lithuania. The log-linear model is used to assess dependence structure of a subset of categorical variables. It is shown that fitting the log-linear model with just
Marijus Radavičius   +1 more
doaj   +3 more sources

Comparing Log-Linear and Best-Fit Models to Evaluate the Long-Term Persistence of Enteric Markers in Sewage Spiked River Water

open access: yesFrontiers in Water, 2021
Water quality models use log-linear decay to estimate the inactivation of fecal indicator bacteria (FIB). The decay of molecular measurements of FIB does not follow a log-linear pattern.
Yolanda M. Brooks   +2 more
doaj   +1 more source

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