Results 11 to 20 of about 152,408 (254)

Fading Channel Modeling via Variable-Length Markov Chain Technique [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2008
Channel characterization and modeling are essential to the wireless communication system design. A model that optimally represents a fading channel with a variable-length Markov chain (VLMC) is proposed in this paper. A VLMC offers a general class of Markov chains whose structure has a variable order and a parsimonious number of transition ...
W. Kumwilaisak   +2 more
openaire   +3 more sources

Model for Detection of Masquerade Attacks Based on Variable-Length Sequences

open access: yesIEEE Access, 2020
A masquerader is an attacker who gains illegitimate access to a user's account. Masquerade detection is one of the key problems of intrusion detection systems.
Ghazaros Barseghyan   +2 more
doaj   +1 more source

LERMS: A Low-Latency and Reliable Downlink Packet-Level Encoding Transmission Method in Untrusted 5GA Edge Network

open access: yesEntropy, 2023
The increasing demand for end-to-end low-latency and high-reliability transmissions between edge computing nodes and user elements in 5G Advance edge networks has brought new challenges to the transmission of data. In response, this paper proposes LERMS,
Zhongfu Guo   +7 more
doaj   +1 more source

Variable Length Markov Chains: Methodology, Computing, and Software [PDF]

open access: yesJournal of Computational and Graphical Statistics, 2004
This article presents a tutorial and new, publicly available computational tools for variable length Markov chains (VLMC). VLMCs are Markov chains with the additional attractive structure that their memories depend on a variable number of lagged values, depending on what the actual past (the lagged values) looks like.
Martin Mächler, Peter Bühlmann
openaire   +1 more source

Constructing training set using distance between learnt graphical models of time series data on patient physiology, to predict disease scores.

open access: yesPLoS ONE, 2023
Interventional endeavours in medicine include prediction of a score that parametrises a new subject's susceptibility to a given disease, at the pre-onset stage.
Dalia Chakrabarty   +6 more
doaj   +1 more source

Variable length Markov chains

open access: yesThe Annals of Statistics, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bühlmann, Peter, Wyner, Abraham J.
openaire   +2 more sources

Algorithms for variable length Markov chain modeling [PDF]

open access: yesBioinformatics, 2004
Abstract Summary: We present a general purpose implementation of variable length Markov models. Contrary to fixed order Markov models, these models are not restricted to a predefined uniform depth. Rather, by examining the training data, a model is constructed that fits higher order Markov dependencies where such contexts exist, while ...
openaire   +2 more sources

Estimation of General Stationary Processes by Variable Length Markov Chains [PDF]

open access: yesScandinavian Journal of Statistics, 2003
Abstract.We develop new results about a sieve methodology for the estimation of minimal state spaces and probability laws in the class of stationary processes defined on finite categorical spaces. Using a sieve approximation with variable length Markov chains of increasing order, we show that an adapted version of the Context algorithm yields ...
Ferrari, Fiorenzo, Wyner, Abraham J
openaire   +3 more sources

A Probabilistic Approach to Generalized Zeckendorf Decompositions [PDF]

open access: yes, 2016
Generalized Zeckendorf decompositions are expansions of integers as sums of elements of solutions to recurrence relations. The simplest cases are base-$b$ expansions, and the standard Zeckendorf decomposition uses the Fibonacci sequence.
Iddo Ben-ari, J. Miller, Steven
core   +1 more source

Analysis of a Retrial Queue With Two-Type Breakdowns and Delayed Repairs

open access: yesIEEE Access, 2020
This article studies an M/G/1 retrial queue with two types of breakdowns. When the server is idle, it is subject to breakdowns according to a Poisson process with rate δ and it cannot be repaired immediately.
Shan Gao, Jie Zhang, Xianchao Wang
doaj   +1 more source

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