Results 91 to 100 of about 4,476,990 (351)

Weighted network motifs as random walk patterns

open access: yesNew Journal of Physics, 2022
Over the last two decades, network theory has shown to be a fruitful paradigm in understanding the organization and functioning of real-world complex systems.
Francesco Picciolo   +3 more
doaj   +1 more source

Prediction of potential disease-associated microRNAs based on random walk

open access: yesBioinform., 2015
MOTIVATION Identifying microRNAs associated with diseases (disease miRNAs) is helpful for exploring the pathogenesis of diseases. Because miRNAs fulfill function via the regulation of their target genes and because the current number of experimentally ...
P. Xuan   +7 more
semanticscholar   +1 more source

Collisions of random walks

open access: yesAnnales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2012
A recurrent graph $G$ has the infinite collision property if two independent random walks on $G$, started at the same point, collide infinitely often a.s. We give a simple criterion in terms of Green functions for a graph to have this property, and use it to prove that a critical Galton-Watson tree with finite variance conditioned to survive, the ...
Barlow, Martin T.   +2 more
openaire   +4 more sources

Random walks on combs [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2006
We develop techniques to obtain rigorous bounds on the behaviour of random walks on combs. Using these bounds we calculate exactly the spectral dimension of random combs with infinite teeth at random positions or teeth with random but finite length. We also calculate exactly the spectral dimension of some fixed non-translationally invariant combs.
Bergfinnur Durhuus   +3 more
openaire   +3 more sources

Random Walks with Invariant Loop Probabilities: Stereographic Random Walks [PDF]

open access: yesEntropy, 2021
Random walks with invariant loop probabilities comprise a wide family of Markov processes with site-dependent, one-step transition probabilities. The whole family, which includes the simple random walk, emerges from geometric considerations related to the stereographic projection of an underlying geometry into a line.
openaire   +5 more sources

A large‐scale retrospective study in metastatic breast cancer patients using circulating tumour DNA and machine learning to predict treatment outcome and progression‐free survival

open access: yesMolecular Oncology, EarlyView.
There is an unmet need in metastatic breast cancer patients to monitor therapy response in real time. In this study, we show how a noninvasive and affordable strategy based on sequencing of plasma samples with longitudinal tracking of tumour fraction paired with a statistical model provides valuable information on treatment response in advance of the ...
Emma J. Beddowes   +20 more
wiley   +1 more source

The restaurant at the end of the random walk: recent developments in the description of anomalous transport by fractional dynamics

open access: yes, 2004
Fractional dynamics has experienced a firm upswing during the past few years, having been forged into a mature framework in the theory of stochastic processes.
R. Metzler, J. Klafter
semanticscholar   +1 more source

Random Walks and Trees [PDF]

open access: yesESAIM: Proceedings, 2011
These notes provide an elementary and self-contained introduction to branching ran- dom walks. Section 1 gives a brief overview of Galton-Watson trees, whereas Section 2 presents the classical law of large numbers for branching random walks. These two short sections are not exactly in- dispensable, but they introduce the idea of using size-biased trees,
openaire   +2 more sources

Escape from TGF‐β‐induced senescence promotes aggressive hallmarks in epithelial hepatocellular carcinoma cells

open access: yesMolecular Oncology, EarlyView.
Chronic TGF‐β exposure drives epithelial HCC cells from a senescent state to a TGF‐β resistant mesenchymal phenotype. This transition is characterized by the loss of Smad3‐mediated signaling, escape from senescence, enhanced invasiveness and metastatic potential, and upregulation of key resistance modulators such as MARK1 and GRM8, ultimately promoting
Minenur Kalyoncu   +11 more
wiley   +1 more source

RANDOM WALK HYPOTHESIS IN FINANCIAL MARKETS [PDF]

open access: yesChallenges of the Knowledge Society, 2017
Random walk hypothesis states that the stock market prices do not follow a predictable trajectory, but are simply random. If you are trying to predict a random set of data, one should test for randomness, because, despite the power and complexity of the ...
Nicolae-Marius JULA, Nicoleta JULA
doaj  

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