Results 51 to 60 of about 2,759 (186)

Indexes to Measure Dependence between Clinical Diagnostic Tests: A Comparative Study

Revista Colombiana de Estadística, 2011
In many practical situations, clinical diagnostic procedures include two or more biological traits whose outcomes are expressed on a continuous scale and are then dichotomized using a cut point.
JOSÉ RAFAEL TOVAR, JORGE ALBERTO ACHCAR
doaj  

A new extension of the Gumbel distribution with biomedical data analysis

Journal of Radiation Research and Applied Sciences
In the field of biomedical research, data characteristics often exhibit significant variability, challenging the applicability of classical Gumbel distribution for biomedical data modeling.
Hanita Daud, Ahmad Abubakar Suleiman, Aliyu Ismail Ishaq, Najwan Alsadat, Mohammed Elgarhy, Abubakar Usman, Pitchaya Wiratchotisatian, Usman Abdullahi Ubale, Yu Liping   +8 more
doaj   +1 more source

Performance of multiparameter distributions in estimating rainfall extremes and deriving IDF equations in Paraná [PDF]

RBRH
Frequency analysis of rainfall involves selecting a probabilistic model to represent sample data and perform design estimates. Various probability distributions are available for this purpose, but there is no general consensus on the most appropriate one.
Wagner Alessandro Pansera, Benedito Martins Gomes   +1 more
doaj   +1 more source

Complex Versus Parsimonious Site‐Based Stochastic Ground Motion Models: Which One Is Better?

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Stochastic ground motion models (GMMs) provide a probabilistic representation of seismic input and are increasingly important for uncertainty quantification (UQ) in earthquake engineering. This study focuses on site‐based stochastic GMMs, which learn the statistical features of selected datasets of seismic records and generate statistically ...
Maijia Su, Mayssa Dabaghi, Marco Broccardo   +2 more
wiley   +1 more source

Are consumers willing to pay more for future organic? Preference for certified transitional labels

Journal of the Agricultural and Applied Economics Association, EarlyView.
Abstract The organic industry in the United States (US) has never kept pace with consumer demand and heavily relies on imports. This paper investigates how consumers value certified transitional labels, indicating growers are transitioning from conventional to organic production.
Xuqi Chen, Jared Gars, Dinglin Duan, Zhifeng Gao, Xin Zhao   +4 more
wiley   +1 more source

Spatial and Temporal Patterns of Extreme Hourly Rainfall in the Hawaiian Islands

International Journal of Climatology, EarlyView.
The extreme rainfall trends in Hawaiʻi were revealed by hourly rainfall data: Across islands, Kauaʻi and Hawaiʻi Island had larger events at a return period. Annual maximum series of 15 gauges showed significant positive trends. While extreme rainfall trends show increases or decreases regionally, the trends varied with rainfall duration.
Maxime Gayte, Yu‐Fen Huang, Yinphan Tsang, Pao‐Shin Chu, Thomas W. Giambelluca, Hanpei Zhang   +5 more
wiley   +1 more source

PEMILIHAN DISTRIBUSI PROBABILITAS PADA ANALISA HUJAN DENGAN METODE GOODNESS OF FIT TEST

Jurnal Teknik Sipil dan Perencanaan, 2016
Rainfall event is a stochastic process, so to explain and analyze this processes the probability theory and frequency analysisare used. There are four types of probability distributions.They are normal, log normal, log Pearson III and Gumbel. To find the
Togani Cahyadi Upomo, Rini Kusumawardani
doaj  

Risk Assessment and Diagnosis Model for Real‐Time Flood Control Operation of a Multi‐Reservoir System

Land Degradation &Development, EarlyView.
ABSTRACT Real‐time flood control operation of multi‐reservoir systems is affected by multiple sources of hydrological and operational uncertainties, which increase the complexity of risk propagation and decision‐making processes. Therefore, effective risk assessment and diagnosis are essential for supporting risk‐informed flood control operation.
Juan Chen, Ruping Fu, Ruxia Deng, Jianjie Tong, Jun Zhang, Ping‐An Zhong   +5 more
wiley   +1 more source

Analysis of Ferquency Maximum Flood in Mountain basin (Case study : Armand station) [PDF]

علوم و مهندسی آبیاری, 2012
A bivariate extreme value distribution, namely the Gumbel mixed model constructed from Gumbel marginal distributions is employed to analyze the joint distribution of correlated flood peak (probable maximum flood) and amount.
D. Rahimi, A. Baratian
doaj  

ON A GENERALIZATION OF THE GUMBEL DISTRIBUTION

Statistika, 2014
In the paper, we proposed a generakization of the gumbel distribution. Simpel properties of the distribution are studied.
Ahmed Hurairah, Noor Akma Ibrahim, Isa bin Daud, Kassim Haron   +3 more
openaire   +1 more source