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The area under the receiver operating characteristic (ROC) curve is often used to summarize and compare the discriminatory accuracy of a diagnostic test or modality, and to evaluate the predictive power of statistical models for binary outcomes. Parametric maximum likelihood methods for fitting...
Persistent link: https://www.econbiz.de/10009442283
transactionattributes, that is, asset specificity, transaction frequency, and uncertainty. The research is based on the theoretical …
Persistent link: https://www.econbiz.de/10009443804
Immer mehr Unternehmen intensivieren vor dem Hintergrund zunehmender Komplexität sowie technologischer und wettbewerblicher Dynamik ihre Lieferanten- und Kundenbeziehungen bis hin zu engen Partnerschaften. Sie sehen diese als Voraussetzung für dauerhaft wirkende Wettbewerbsvorteile an.// Mit...
Persistent link: https://www.econbiz.de/10009467182
lead to improved treatment and thus reduce medical mistakes. The sensitivity and specificity are two important measurements … confidence interval for the sensitivity at a fixed level of specificity for the test. In this thesis, we propose three empirical …
Persistent link: https://www.econbiz.de/10009463421
of sensitivity and specificity for all the possible values of the cut-point. This dissertation concentrates on …
Persistent link: https://www.econbiz.de/10009480799
Sensitivity and specificity are common measures of the accuracy of a diagnostic test. The usual estimators of these … and specificity based on this subset of subjects are typically biased; this is known as verification bias. In this … connecting the (sensitivity, 1? specificity) points at each cutpoint of the test using step functions and/or line segments. This …
Persistent link: https://www.econbiz.de/10009482975
and specificity values from these data for different scoring systems. The interest of our approach was illustrated in a …
Persistent link: https://www.econbiz.de/10009483617
This paper highlights how the provision of information about userparticipation can serve as a strategic marketing tool for firms seekingto grow two-sided exchange networks. A two-sided exchange network is abusiness model (such as Ebay or Craiglist) where revenue is generatedfrom persuading...
Persistent link: https://www.econbiz.de/10009435138
This report introduces a novel approach to performing inference and learning in Dynamic Bayesian Networks (DBN). The … traditional approach to inference and learning in DBNs involves conditioning on one or more finite-length observation sequences … solving inference problems (i.e., computing P(X|Φ)) and learning problems (i.e., computing P(Θ|Φ)) using techniques from the …
Persistent link: https://www.econbiz.de/10009441211
Extremes are unusual or rare events. However, when such events – for exampleearthquakes, tidal waves and market crashes - do take place, they typically causeenormous losses, both in terms of human lives and monetary value. For this reason,it is of critical importance to accurately model...
Persistent link: https://www.econbiz.de/10009442025