scholarly journals A log-linear modelling approach to assessing the consistency of ego reports of dyadic outcomes with applications to fertility and sexual partnerships

2014 ◽  
Vol 178 (2) ◽  
pp. 363-382
Author(s):  
Ryan Admiraal ◽  
Mark S. Handcock
Keyword(s):  
Sexual Partnerships ◽  
Linear Modelling ◽  
Log Linear ◽  
Modelling Approach

scholarly journals A General Framework for Multiple-Recapture Estimation that Incorporates Linkage Error Correction

2021 ◽  
Vol 37 (3) ◽  
pp. 699-718
Author(s):  
Daan Zult ◽  
Peter-Paul de Wolf ◽  
Bart F. M. Bakker ◽  
Peter van der Heijden
Keyword(s):  
Error Correction ◽  
Record Linkage ◽  
General Framework ◽  
Population Size Estimates ◽  
Linear Modelling ◽  
Linkage Error ◽  
Capture Recapture ◽  
Log Linear ◽  
Size Estimates ◽  
Modelling Approach

Abstract The size of a partly observed population is often estimated with the capture-recapture model. An important assumption of this chat model is that sources can be perfectly linked. This assumption is of relevance if the identification of records is not obtained by some perfect identifier (such as an id code) but by indirect identifiers (such as name and address). In that case, the perfect linkage assumption is often violated, which in general leads to biased population size estimates. Initial suggestions to solve this use record linkage probabilities to correct the capture-recapture model. In this article we provide a general framework, based on the standard log-linear modelling approach, that generalises this work towards the inclusion of additional sources and covariates. We show that the method performs well in a simulation study.

Stemmen in Vlaanderen op 13 december 1987 : Een statistische analyse

Res Publica ◽  
1988 ◽  
Vol 30 (1) ◽  
pp. 25-50
Author(s):  
Marc Swyngedouw ◽  
Jaak Billiet
Keyword(s):  
Political Parties ◽  
Democratic Party ◽  
Occupational Status ◽  
The Political ◽  
Voting Behaviour ◽  
National Elections ◽  
Statistische Analyse ◽  
Use Of Data ◽  
Linear Modelling ◽  
Log Linear

Taking into account the limits of such data, this study analyses the shifts in voting behaviour from the national elections in 1985 to those in 1987 in Flanders, using log-linear modelling. The use of data from poll surveys for estimating shifts between subsequent elections poses some methodological problems.The second part presents the results of the analysis. About 13,51 % of -the 1985-voters switched. Although there are significant shifts between all the political parties, the Christian Democratic Party (CVP) loses on all fronts. A log-linear analysis of party-reference by sex, age and occupational status shows the strength and weakness of each party in different societal categories. In conclusion, an interpretation of the shifts is proposed. The following factors can account for the major shifts : the desintegration of the catholic pillar, the emergence of a dual society, the affinity between neo-liberalism and yuppie-culture and the conflict between the language communities.

scholarly journals Fright or Flight? Behavioural Responses of Kangaroos to Drone-Based Monitoring

Drones ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 41 ◽  
Author(s):  
Brunton ◽  
Bolin ◽  
Leon ◽  
Burnett
Keyword(s):  
Ground Level ◽  
Urban Environments ◽  
Above Ground Level ◽  
Terrestrial Mammal ◽  
Behavioural Responses ◽  
Terrestrial Mammals ◽  
Site Characteristics ◽  
Grey Kangaroo ◽  
Linear Modelling ◽  
Modelling Approach

: Drones are often considered an unobtrusive method of monitoring terrestrial wildlife; however research into whether drones disturb wildlife is in its early stages. This research investigated the potential impacts of drone monitoring on a large terrestrial mammal, the eastern grey kangaroo (Macropus giganteus), in urban and peri-urban environments. We assessed the response of kangaroos to drone monitoring by analysing kangaroo behaviour prior to and during drone deployments using a linear modelling approach. We also explored factors that influenced kangaroo responses including drone altitude, site characteristics and kangaroo population dynamics and demographics. We showed that drones elicit a vigilance response, but that kangaroos rarely fled from the drone. However, kangaroos were most likely to flee from a drone flown at an altitude of 30 m. This study suggests that drone altitude is a key consideration for minimising disturbance of large terrestrial mammals and that drone flights at an altitude of 60–100 m above ground level will minimise behavioural impacts. It also highlights the need for more research to assess the level of intrusion and other impacts that drone surveys have on the behaviour of wildlife and the accuracy of the data produced.

Characterizing adaptations of serve indicators in top-level male volleyball among seasons

2020 ◽  
pp. 174795412097892
Author(s):  
Konstantinos Sotiropoulos ◽  
Sotirios Drikos ◽  
Sophia D Papadopoulou ◽  
Karolina Barzouka
Keyword(s):  
Correspondence Analysis ◽  
Olympic Games ◽  
Multiple Correspondence Analysis ◽  
Horizontal Axis ◽  
Special Focus ◽  
Linear Modelling ◽  
Chi Squared ◽  
Position Type ◽  
Log Linear

The purpose of this study was to analyse selected serve characteristics in top-level male volleyball, with a special focus on detecting adaptations of the serve skill among seasons. The indicators examined were type, position, direction and quality of serve. The sample consisted of 5482 serves from three final phases of different top-level tournaments (Olympic Games 2012, N = 1942, World League 2017, N = 1883, World Championship 2018, N = 1657). The interrelationships between variables were analyzed using chi-squared tests, log-linear modelling and multiple correspondence analysis. The results showed that the interaction of all serve indicators are statistically important, but the combination of the variables’ categories that were more responsible for association alternated across the seasons under study. A 3-way association term was revealed for season 2012 (type/position/direction) and 2018 (type/position/quality), while for season 2017 multiple 2-way interactions were found (type/position, type/direction, position/quality, direction/quality). The direction of the serve to the horizontal axis of the court was correlated to the quality of serve and consequently with the advantage of the serving team, while a more tactical perspective for serve skill is formed over periods in top level male volleyball.

Modelling daily rainfall with climatological predictors: Poisson-gamma generalized linear modelling approach

2016 ◽  
Vol 37 (3) ◽  
pp. 1391-1399 ◽  
Author(s):  
Rossita M. Yunus ◽  
Masud M. Hasan ◽  
Nuradhiathy A. Razak ◽  
Yong Z. Zubairi ◽  
Peter K. Dunn
Keyword(s):  
Daily Rainfall ◽  
Generalized Linear Modelling ◽  
Linear Modelling ◽  
Modelling Approach

scholarly journals Estimating the number of injecting drug users in Scotland's HCV-diagnosed population using capture–recapture methods

2013 ◽  
Vol 142 (1) ◽  
pp. 200-207 ◽  
Author(s):  
S. A. McDONALD ◽  
S. J. HUTCHINSON ◽  
C. SCHNIER ◽  
A. McLEOD ◽  
D. J. GOLDBERG
Keyword(s):  
Linked Data ◽  
Drug Users ◽  
Surveillance Systems ◽  
Treatment Interventions ◽  
Public Health Professionals ◽  
Combining Data ◽  
Linear Modelling ◽  
Capture Recapture ◽  
Hcv Antibody ◽  
Log Linear

SUMMARYIn countries maintaining national hepatitis C virus (HCV) surveillance systems, a substantial proportion of individuals report no risk factors for infection. Our goal was to estimate the proportion of diagnosed HCV antibody-positive persons in Scotland (1991–2010) who probably acquired infection through injecting drug use (IDU), by combining data on IDU risk from four linked data sources using log-linear capture–recapture methods. Of 25 521 HCV-diagnosed individuals, 14 836 (58%) reported IDU risk with their HCV diagnosis. Log-linear modelling estimated a further 2484 HCV-diagnosed individuals with IDU risk, giving an estimated prevalence of 83. Stratified analyses indicated variation across birth cohort, with estimated prevalence as low as 49% in persons born before 1960 and greater than 90% for those born since 1960. These findings provide public-health professionals with a more complete profile of Scotland's HCV-infected population in terms of transmission route, which is essential for targeting educational, prevention and treatment interventions.

scholarly journals Creep and Stress Relaxation Behaviour of PLA-PCL Fibres – A Linear Modelling Approach

2015 ◽  
Vol 114 ◽  
pp. 768-775 ◽  
Author(s):  
Cátia Martins ◽  
Viviana Pinto ◽  
Rui Miranda Guedes ◽  
António T. Marques
Keyword(s):  
Stress Relaxation ◽  
Relaxation Behaviour ◽  
Linear Modelling ◽  
Creep And Stress Relaxation ◽  
Modelling Approach
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