Knowledge about low flow statistics is essential for effective water resource planning and management in ungauged orpoorly gauged catchment areas, especially in arid and semi-arid regions such as Iran. We employed a data set of 20 riverflow time-series from the Iranian Central Plateau River Basin, Iran to evaluate the low-flow series using several frequencyanalysis methods and compared the resu...

Pre-trained language models (PLMs) have recently enabled rapid progress on sentiment classification under the pre-train and fine-tune paradigm, where fine-tuning phase aims to transfer factual knowledge learned by PLMs classification. However, current methods ignore risk that cause problem of bias, is, tend inject positive or negative from contextual information certain entities (or aspects) in...

In this paper we study the extremal behavior of a stationary continuoustime moving average process Y (t) = ∫∞ −∞ f(t−s) dL(s) for t ∈ R, where f is a deterministic function and L is a Lévy process whose increments, represented by L(1), are subexponential and in the maximum domain of attraction of the Gumbel distribution. We give necessary and sufficient conditions for Y to be a stationary, infi...

We investigate the extremal behavior of stationary mixed MA processes Y (t) = ∫ R+×R f(r, t− s) dΛ(r, s) for t ≥ 0, where f is a deterministic function with f(r, 0) = f+ and |f(r, s)| < f+ for s 6= 0 and r ∈ R+. The random measure Λ is infinitely divisible and independently scattered, whose finite dimensional distributions, represented by L(1) = Λ(R+ × [0, 1]), are in the class of convolution e...

Background: The optimal score for ungapped local alignments of infinitely long random sequences is known to follow a Gumbel extreme value distribution. Less is known about the important case, where gaps are allowed. For this case, the distribution is only known empirically in the highprobability region, which is biologically less relevant. Results: We provide a method to obtain numerically the ...

In this paper, we focus on the reliability and performance analysis of Computer Centre (CC) at Yobe State University, Damaturu, Nigeria. The CC consists of three servers: one database mail server, one redundant and one for sharing with the client computers in the CC (called as a local server). Observing the different possibilities of the functioning of the CC, the analysis has been done to eval...

The recent work “Bringing closure to the plotting position controversy” (Makkonen, 2008a) states the impossibility of a different solution from the classical plotting position proposed by Weibull (1939) and promoted by Gumbel (1958). In this paper, a new and better distribution-free solution is obtained via axiomatic approach. The applicative implications of a comparative study, carried out by ...

Consider the MLEs (maximum likelihood estimators) of the parameters of the Gumbel distribution using SRS (simple random sample) and RSS (ranked set sample) and the MOMEs (method of moment estimators) and REGs (regression estimators) based on SRS. A comparison between these estimators using bias and MSE (mean square error) was performed using simulation. It appears that the MLE based on RSS can ...

Knowledge of the dependence between random variables is necessary in area risk assessment and evaluation. Some existing Archimedean copulas, namely Clayton Gumbel allow for higher correlations on extreme left right, respectively. In this study, we use idea convex combinations to build a hybrid Clayton–Gumbel–Frank copula that provides all scenarios from copulas. The corresponding density condit...