Results 11 to 20 of about 436,165 (301)

Exploring local dependence [PDF]

open access: yes, 2002
This paper discusses two graphical methods for the investigation of local association of two continuous random variables. Often, scalar dependence measures, such as correlation, cannot reflect the complex dependence structure of two variables.
Abberger, Klaus
core   +4 more sources

Local Dependence in Random Graph Models: Characterization, Properties and Statistical Inference [PDF]

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 2015
Michael Schweinberger, Mark S Handcock
exaly   +2 more sources

Normal approximation under local dependence

open access: yesAnnals of Probability, 2004
Published by the Institute of Mathematical Statistics (http://www.imstat.org) in the Annals of Probability (http://www.imstat.org/aop/) at http://dx.doi.org/10.1214 ...
Louis H Y Chen, Qi-Man Shao
exaly   +5 more sources

Logics of dependence and independence: The local variants [PDF]

open access: yesJournal of Logic and Computation, 2021
Abstract Modern logics of dependence and independence are based on team semantics, which means that formulae are evaluated not on a single assignment of values to variables, but on a set of such assignments, called a team. This leads to high expressive power, on the level of existential second-order logic.
Grädel, Erich, Pützstück, Phil
openaire   +3 more sources

The Unit Testlet Dilemma: PISA Sample

open access: yesInternational Journal of Assessment Tools in Education, 2021
Testlets have advantages such as making it possible to measure higher-order thinking skills and saving time, which are accepted in the literature. For this reason, they have often been preferred in many implementations from in-class assessments to large ...
Cansu Ayan, Fulya Barış Pekmezci
doaj   +1 more source

Item parameter recovery via traditional 2PL, Testlet and Bi-factor models for Testlet-Based tests

open access: yesInternational Journal of Assessment Tools in Education, 2022
The testlet comprises a set of items based on a common stimulus. When the testlet is used in the tests, there may violate the local independence assumption, and in this case, it would not be appropriate to use traditional item response theory models in ...
Esin Yılmaz Koğar, Sümeyra Soysal
doaj   +1 more source

Parameter Estimation of KST-IRT Model under Local Dependence

open access: yesPsych, 2023
A mantra often repeated in the introductory material to psychometrics and Item Response Theory (IRT) is that a Rasch model is a probabilistic version of a Guttman scale. The idea comes from the observation that a sigmoidal item response function provides
Sangbeak Ye   +2 more
doaj   +1 more source

Food Production and Consumption in Ordos of Inner Mongolia

open access: yesFoods, 2023
Ordos is an ecological fragile area in the upstream and midstream of the Yellow River and a component of the ecological security barrier on the northern frontier of China. With population growth in recent years, the contradiction between human beings and
Yexuan Liu, Lin Zhen, Yunfeng Hu
doaj   +1 more source

Local Dependency in Networks [PDF]

open access: yes2013 5th International Conference on Intelligent Networking and Collaborative Systems, 2013
Many real world data or process eave a network structure and can usefully be represented as graphs. Network analysis focuses on the relations among the nodes exploring the properts hies of network. We introduce a method for measuring the dependency between the nodes of a network, that is based on a structure in the local surroundings of the node.
Sarka Zehnalova   +3 more
openaire   +1 more source

State-Dependent Local Projections

open access: yesFederal Reserve Bank of Dallas, Working Papers, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gonçalves, Sílvia   +3 more
openaire   +1 more source

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