Results 11 to 20 of about 490,657 (289)

Stochastic Volatility Models: Conditional Normality Versus Heavy-Tailed Distributions [PDF]

open access: yesSSRN Electronic Journal, 1997
Most of the empirical applications of the stochastic volatility (SV) model are based on the assumption that the conditional distribution of returns, given the latent volatility process, is normal. In this paper, the SV model based on a conditional normal distribution is compared with SV specifications using conditional heavy-tailed distributions ...
Liesenfeld, Roman, Jung, Robert C.
openaire   +2 more sources

Statistical analysis of storm-time near-Earth current systems [PDF]

open access: yesAnnales Geophysicae, 2015
Currents from the Hot Electron and Ion Drift Integrator (HEIDI) inner magnetospheric model results for all of the 90 intense storms (disturbance storm-time (Dst) minimum < −100 nT) from solar cycle 23 (1996–2005) are calculated, presented, and ...
M. W. Liemohn   +3 more
doaj   +1 more source

Evaluating CMIP6 model fidelity at simulating non-Gaussian temperature distribution tails

open access: yesEnvironmental Research Letters, 2020
Under global warming, changes in extreme temperatures will manifest in more complex ways in locations where temperature distribution tails deviate from Gaussian.
A J Catalano, P C Loikith, J D Neelin
doaj   +1 more source

An asymptotically Gaussian bound on the Rademacher tails [PDF]

open access: yes, 2011
An explicit upper bound on the tail probabilities for the normalized Rademacher sums is given. This bound, which is best possible in a certain sense, is asymptotically equivalent to the corresponding tail probability of the standard normal distribution ...
Pinelis, Iosif
core   +2 more sources

On Single Server Queues with Batch Arrivals

open access: yesComputer Sciences & Mathematics Forum, 2023
We consider a queuing system GIν|M|1|∞ with arrival of customers in batches, general renewal arrivals, exponential service times, single service channels and an infinite number of waiting positions, where customers are serviced in the order of their ...
Vitaly Sobolev, Alexander Condratenko
doaj   +1 more source

A Note on Second Order Conditions in Extreme Value Theory: Linking General and Heavy Tail Conditions

open access: yesRevstat Statistical Journal, 2007
Second order conditions ruling the rate of convergence in any first order condition involving regular variation and assuring a unified extreme value limiting distribution function for the sequence of maximum values, linearly normalized, have appeared in
M. Isabel Fraga Alves   +3 more
doaj   +1 more source

A Method to Learn Embedding of a Probabilistic Medical Knowledge Graph: Algorithm Development

open access: yesJMIR Medical Informatics, 2020
BackgroundKnowledge graph embedding is an effective semantic representation method for entities and relations in knowledge graphs. Several translation-based algorithms, including TransE, TransH, TransR, TransD, and TranSparse, have been proposed to learn
Li, Linfeng   +8 more
doaj   +1 more source

Scaling in the distribution of intertrade durations of Chinese stocks [PDF]

open access: yes, 2008
The distribution of intertrade durations, defined as the waiting times between two consecutive transactions, is investigated based upon the limit order book data of 23 liquid Chinese stocks listed on the Shenzhen Stock Exchange in the whole year 2003.
Chen, Wei   +2 more
core   +1 more source

A New, Satellite NDVI-Based Sampling Protocol for Grape Maturation Monitoring

open access: yesRemote Sensing, 2020
Vineyards are sampled on multiple occasions during the growing season for a range of purposes, particularly to assess fruit maturation. The objective of this work was to determine if satellite normalized difference vegetation index (NDVI) vineyard images
James M. Meyers   +4 more
doaj   +1 more source

Asymptotic Normality of Least-Squares Estimators of Tail Indices [PDF]

open access: yesBernoulli, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sándor Csörgö   +3 more
openaire   +2 more sources

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