Modeling biased information seeking with second order probability distributions

Title:

Modeling biased information seeking with second order probability distributions

Creator:

Kleiter, Gernot D.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:1dba50e8-6899-40fa-abf1-198a2b092cfa
uuid:1dba50e8-6899-40fa-abf1-198a2b092cfa

Subject:

probability logic, Bayes´ theorem, degradation, pseudodiagnosticity task, second order, and probability distributions

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Updating probabilities by information from only one hypothesis and thereby ignoring alternative hypotheses, is not only biased but leads to progressively imprecise conclusions. In psychology this phenomenon was studied in experiments with the "pseudodiagnosticity task''. In probability logic the phenomenon that additional premises increase the imprecision of a conclusion is known as "degradation''. The present contribution investigates degradation in the context of second order probability distributions. It uses beta distributions as marginals and copulae together with C-vines to represent dependence structures. It demonstrates that in Bayes' theorem the posterior distributions of the lower and upper probabilities approach 0 and 1 as more and more likelihoods belonging to only one hypothesis are included in the analysis.

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

[469]-485

Source:

Kybernetika | 2015 Volume:51 | Number:3

Harvested from:

CDK

Metadata only:

false