Results 11 to 20 of about 907,927 (141)

Concordance Probability for Insurance Pricing Models

open access: yesRisks, 2021
The concordance probability, also called the C-index, is a popular measure to capture the discriminatory ability of a predictive model. In this article, the definition of this measure is adapted to the specific needs of the frequency and severity model ...
Jolien Ponnet   +2 more
doaj   +1 more source

Using cognitive models to combine probability estimates [PDF]

open access: yesJudgment and Decision Making, 2014
We demonstrate the usefulness of cognitive models for combining human estimates of probabilities in two experiments. The first experiment involves people's estimates of probabilities for general knowledge questions such as ``What percentage of the world ...
Michael D. Lee, Irina Danileiko
doaj   +3 more sources

Geo-Based Statistical Models for Vulnerability Prediction of Highway Network Segments

open access: yesISPRS International Journal of Geo-Information, 2014
This study describes four statistical models—Poisson; Negative Binomial; Zero-Inflated Poisson; and Zero-Inflated Negative Binomial—which were devised in order to examine traffic accidents and estimate the best probability estimating model in terms of ...
Keren Pollak   +2 more
doaj   +1 more source

Probability-Statistical Models to Forecast Hydraulic Fracturing Efficiency [PDF]

open access: yesE3S Web of Conferences, 2020
The article discusses the criteria for choosing fracture parameters by length, height and amount of proppant to be injected. The criteria, chosen on the basis of for probabilistic and statistical analysis are to ensure adequate application of multiand ...
Gabdrakhmanova Klara Fatkullinovna   +3 more
doaj   +1 more source

Semantic Models for Scalable Search in the Internet of Things

open access: yesJournal of Sensor and Actuator Networks, 2013
The Internet of Things is anticipated to connect billions of embedded devices equipped with sensors to perceive their surroundings. Thereby, the state of the real world will be available online and in real-time and can be combined with other data and ...
Dennis Pfisterer   +3 more
doaj   +1 more source

An Overview of Security Breach Probability Models

open access: yesRisks, 2022
Cybersecurity breach probability functions describe how cybersecurity investments impact the actual vulnerability to cyberattacks through the probability of success of the attack.
Alessandro Mazzoccoli, Maurizio Naldi
doaj   +1 more source

Intensity-duration-frequency ratios obtained from annual records and partial duration records in the locality of Pelotas - RS, Brazil Relações intensidade-duração-frequência obtidas a partir de séries anual e de duração parcial para a localidade de Pelotas-RS

open access: yesEngenharia Agrícola, 2011
The intensity-duration-frequency occurrence ratio (IDF) is a tool commonly used for precipitation-runoff data transformation, which is established from observations of intense precipitations over a period sufficiently long as to allow the occurrence of ...
Claudia F. A. Teixeira   +2 more
doaj   +1 more source

Stochastic modelling of earthquake interoccurrence times in Northwest Himalaya and adjoining regions

open access: yesGeomatics, Natural Hazards & Risk, 2018
This work concentrates on the distribution of earthquake interevent times in northwest Himalaya and its adjacent regions. We consider 12 time-dependent probability distributions for analysis.
Sumanta Pasari
doaj   +1 more source

Mathematical models applied to the prediction of doping in male athletes [PDF]

open access: yesJournal of Men's Health, 2023
The compartmental model is a mathematical model (usually described by a set of differential equations) that describes how individuals from different compartments (or groups) that represent a population, interacts.
Christine Gabriela Viscotel   +7 more
doaj   +1 more source

Bayesian Analysis of the Discrete Two-Parameter Bathtub Hazard Distribution

open access: yesJournal of Mathematical Sciences and Modelling, 2019
A new discrete two-parameter bathtub hazard distribution is proposed by Sarhan \cite{Sarhan-2017}. This paper uses Bayes method to estimate the two unknown parameters and the reliability measures of this distribution.
Ammar Sarhan
doaj   +1 more source

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