Results 21 to 30 of about 4,448,135 (158)

A Review on Human Activity Recognition Using Vision-Based Method. [PDF]

open access: yesJ Healthc Eng, 2017
Human activity recognition (HAR) aims to recognize activities from a series of observations on the actions of subjects and the environmental conditions. The vision‐based HAR research is the basis of many applications including video surveillance, health care, and human‐computer interaction (HCI).
Zhang S   +5 more
europepmc   +2 more sources

Mathematical model for forwarding packets in communication network

open access: yesIET Networks, Volume 11, Issue 2, Page 70-87, March 2022., 2022
Abstract The software‐defined networking (SDN) represents the future backbone of the Internet. In general, to understand the performance and the limitation of SDN is a prerequisite for deploying these networks and making the most of their resources. For achieving that goal, this paper discusses the difference between traditional networks and SDN over ...
Samaa A. I. Hussein   +2 more
wiley   +1 more source

Coxian phase-type distribution.

open access: yes, 2022
Coxian phase-type distribution.
Reyer Zwiggelaar (12418353)   +3 more
core   +1 more source

A Coxian model for channel holding time distribution for teletraffic mobility modeling [PDF]

open access: yesIEEE Communications Letters, 2000
In this letter, we derive an algebraic set of equations that examines the relationships between the cell residence times and the handoff call's channel holding time. When the cell residence times have an Erlang or Hyper-Erlang distribution, the channel holding times can be represented by a Coxian model.
Soong,B.H., Barria,J.A.
openaire   +4 more sources

Ruin Probability for Stochastic Flows of Financial Contract under Phase-Type Distribution

open access: yesRisks, 2020
This paper examines the impact of the parameters of the distribution of the time at which a bank’s client defaults on their obligated payments, on the Lundberg adjustment coefficient, the upper and lower bounds of the ruin probability.
Franck Adékambi, Kokou Essiomle
doaj   +1 more source

Performance Sensitivity to the High‐Order Statistics of Time Interval Variables in Cellular Networks

open access: yesMobile Information Systems, Volume 2020, Issue 1, 2020., 2020
Cell dwell time (DT) and unencumbered interruption time (IT) are fundamental time interval variables in the teletraffic analysis for the performance evaluation of mobile cellular networks. Although a diverse set of general distributions has been proposed to model these time interval variables, the effect of their moments higher than the expected value ...
Felipe A. Cruz-Pérez   +7 more
wiley   +1 more source

A Parameter Estimation Method of Shock Model Constructed with Phase‐Type Distribution on the Condition of Interval Data

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
The phase‐type distribution (also known as PH distribution) has mathematical properties of denseness and closure in calculation and is, therefore, widely used in shock model constructions describing occurrence time of a shock or its damage. However, in the case of samples with only interval data, modeling with PH distribution will cause decoupling ...
Long Wang   +4 more
wiley   +1 more source

Necessary and Sufficient Conditions for Representing General Distributions by Coxians [PDF]

open access: yes, 2003
A common analytical technique involves using a Coxian distribution to model a general distribution G, where the Coxian distribution agrees with G on the first three moments. This technique is motivated by the analytical tractability of the Coxian distribution.
Takayuki Osogami, Mor Harchol-Balter
openaire   +2 more sources

Phase-Type Models in Life Insurance: Fitting and Valuation of Equity-Linked Benefits

open access: yesRisks, 2019
Phase-type (PH) distributions are defined as distributions of lifetimes of finite continuous-time Markov processes. Their traditional applications are in queueing, insurance risk, and reliability, but more recently, also in finance and, though to a ...
Søren Asmussen   +2 more
doaj   +1 more source

A joint likelihood approach to the analysis of length of stay data utilising the continuous-time hidden Markov model and Coxian phase-type distribution

open access: yes, 2020
The Coxian phase-type distribution is a special case of phase-type distribution which represents the time to absorption of a finite Markov chain in continuous time.
Zenga, Mariangela   +2 more
core   +1 more source

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