Results 101 to 110 of about 1,809,097 (279)

Accelerating Random Walks [PDF]

open access: yes, 2002
In recent years, there has been much research on local search techniques for solving constraint satisfaction problems, including Boolean satisfiability problems. Some of the most successful procedures combine a form of random walk with a greedy bias.
Wei Wei 0040, Bart Selman
openaire   +1 more source

Statistics of Global Stochastic Optimisation: How Many Steps to Hit the Target?

open access: yesMathematics
Random walks are considered in a one-dimensional monotonously decreasing energy landscape. To reach the minimum within a region Ωϵ, a number of downhill steps have to be performed.
Godehard Sutmann
doaj   +1 more source

Evaluation of Digital Technologies for Home‐Based Assessment in People With Amyotrophic Lateral Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Digital technologies hold promise for transforming healthcare by enhancing personalized treatments and offer valuable opportunities to improve patient care. Here, we evaluated several novel, self‐administered, home‐based, digital endpoints for their association with corresponding conventional standard clinical measures (primary) in ...
Arne Mueller   +14 more
wiley   +1 more source

Interaction of Intraprocedural Antiplatelets and Intravenous Thrombolysis in Acute Intracranial Stenting: RESISTANT Registry Subanalysis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction/Objective Acute intracranial stenting during endovascular thrombectomy (EVT) for ischemic stroke requires intraprocedural antiplatelet therapy (APT) to maintain patency. However, the hemorrhagic risk of combining APT with intravenous thrombolysis (IVT) remains uncertain.
Aaron Rodriguez‐Calienes   +75 more
wiley   +1 more source

Linear rate of escape and convergence in direction

open access: yes, 2004
This paper describes some situations when random walks (or related processes) of linear rate of escape converge in direction in various senses. We discuss random walks on isometry groups of fairly general metric spaces, and more specifically, random ...
Karlsson, Anders,
core   +3 more sources

Random walks of intermittently self-propelled particles

open access: yesPhysical Review Research
Motivated by various recent experimental findings, we propose a dynamical model of intermittently self-propelled particles: active particles that recurrently switch between two modes of motion, namely an active run state and a turn state, in which self ...
Agniva Datta   +2 more
doaj   +1 more source

Random walks in random environment with Markov dependence on time

open access: yesCondensed Matter Physics, 2008
We consider a simple model of discrete-time random walk on Ζν, ν=1,2,... in a random environment independent in space and with Markov evolution in time. We focus on the application of methods based on the properties of the transfer matrix and on spectral
C.Boldrighini   +2 more
doaj   +1 more source

Dynamic random walks: theory and applications

open access: yes, 2006
The aim of this book is to report on the progress realized in probability theory in the field of dynamic random walks and to present applications in computer science, mathematical physics and finance. Each chapter contains didactical material as well as
Schott, Rene   +3 more
core  

Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane   +10 more
wiley   +1 more source

Angular asymptotics for multi-dimensional non-homogeneous random walks with asymptotically zero drift [PDF]

open access: yes, 2010
We study the rst exit time from an arbitrary cone with apex at the origin by a non-homogeneous random walk (Markov chain) on Zd (d 2) with mean drift that is asymptotically zero.
MacPhee, I.M.   +2 more
core   +3 more sources

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