Results 11 to 20 of about 6,035,490 (336)
A call to action to address critical flaws and bias in laboratory animal experiments and preclinical research [PDF]
Scientific ReportsDuring the design of hypothesis-driven, comparative laboratory animal experiments, investigators must control for cage effects, ensure full blinding and full randomization while adhering to established experimental designs, notably variations of the ...
Hugh G. G. Townsend +9 more
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Demystifying inconsistent two-sample mendelian randomization estimations using selection diagram [PDF]
BMC Medical Research MethodologyTwo-Sample Mendelian Randomization (TSMR) analysis is a widely used method for inferring causal effect in the presence of unmeasured confounding. However, causal inferences may be biased if the distributions of key variables (e.g., exposures, outcomes ...
Lei Hou +4 more
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Random Structures & Algorithms, 2021 AbstractThe basic random k‐SAT problem is: given a set of n Boolean variables, and m clauses of size k picked uniformly at random from the set of all such clauses on our variables, is the conjunction of these clauses satisfiable? Here we consider a variation of this problem where there is a bias towards variables occurring positive—that is, variables ...
Larsson, Joel, Markström, Klas
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Time Dependent Biased Random Walks [PDF]
ACM Transactions on Algorithms, 2022 We study the biased random walk where at each step of a random walk a “controller” can, with a certain small probability, move the walk to an arbitrary neighbour. This model was introduced by Azar et al. [STOC’1992]; we extend their work to the time dependent setting and consider cover times of this walk.
John Haslegrave +2 more
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Physical Review A, 2023 A random access code (RAC) is a communication task in which the sender encodes a random message into a shorter one to be decoded by the receiver so that a randomly chosen character of the original message is recovered with some probability. Both the message and the character to be recovered are assumed to be uniformly distributed.
Gabriel Pereira Alves +2 more
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Algorithms, 2022 Many real-life combinatorial optimization problems are subject to a high degree of dynamism, while, simultaneously, a certain level of synchronization among agents and events is required.
Juliana Castaneda +4 more
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Random networks tossing biased coins [PDF]
Physical Review E, 2007 In statistical mechanical investigations on complex networks, it is useful to employ random graphs ensembles as null models, to compare with experimental realizations. Motivated by transcription networks, we present here a simple way to generate an ensemble of random directed graphs with, asymptotically, scale-free outdegree and compact indegree ...
F. Bassetti +3 more
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Biased random walks on random combs [PDF]
Journal of Physics A: Mathematical and Theoretical, 2007 We develop rigorous, analytic techniques to study the behaviour of biased random walks on combs. This enables us to calculate exactly the spectral dimension of random comb ensembles for any bias scenario in the teeth or spine. Two specific examples of random comb ensembles are discussed: the random comb with nonzero probability of an infinitely long ...
Tanya M Elliott, John F Wheater
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Nature Communications, 2022 Mendelian randomization uses genetic variation to study the causal effect of exposure on outcome, but results can be biased by confounders, such as horizontal pleiotropy.
Qing Cheng +3 more
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Biased games on random boards [PDF]
Random Structures & Algorithms, 2014 ABSTRACTIn this paper we analyze biased Maker‐Breaker games and Avoider‐Enforcer games, both played on the edge set of a random board . In Maker‐Breaker games there are two players, denoted by Maker and Breaker. In each round, Maker claims one previously unclaimed edge of G and Breaker responds by claiming b previously unclaimed edges.
Ferber, Asaf +3 more
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