Results 41 to 50 of about 3,355,376 (309)
Performance of Some Estimators of Relative Variability
Frontiers in Applied Mathematics and Statistics, 2019 The classic coefficient of variation (CV) is the ratio of the standard deviation to the mean and can be used to compare normally distributed data with respect to their variability, this measure has been widely used in many fields. In the Social Sciences,
Raydonal Ospina +1 more
doaj +1 more source
, 2021 This article seeks to contribute to theorising the institutional structure of international society by exploring synergies between complex systems thinking and the English School theory of International Relations (IR).
Schmidt, Dennis R.
core +1 more source
On computational complexity of set automata [PDF]
Information and Computation, 2017 31 pages, an extended version of the conference paper (DLT 2017), includes new results and omitted ...
Alexander A. Rubtsov, Mikhail N. Vyalyi
openaire +6 more sources
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
08381 Executive Summary – Computational Complexity of Discrete Problems [PDF]
, 2008 Estimating the computational complexity of discrete problems constitutes one of the central and classical topics in the theory of computation. Mathematicians and computer scientists have long tried to classify natural families of Boolean relations ...
van Melkebeek, Dieter +3 more
core +1 more source
On $NP \cap coNP$ proof complexity generators [PDF]
Logical Methods in Computer ScienceMotivated by the theory of proof complexity generators we consider the following $Σ^p_2$ search problem $\mbox{DD}_P$ determined by a propositional proof system $P$: given a $P$-proof $π$ of a disjunction $\bigvee_i α_i$, no two $α_i$ having an atom in ...
Jan Krajicek
doaj +1 more source
Complexity theory for spaces of integrable functions [PDF]
Logical Methods in Computer Science, 2017 This paper investigates second-order representations in the sense of Kawamura and Cook for spaces of integrable functions that regularly show up in analysis. It builds upon prior work about the space of continuous functions on the unit interval: Kawamura
Florian Steinberg
doaj +1 more source
The Computational Complexity of Sandpiles [PDF]
Journal of Statistical Physics, 1999 Given an initial distribution of sand in an Abelian sandpile, what final state does it relax to after all possible avalanches have taken place? In d >= 3, we show that this problem is P-complete, so that explicit simulation of the system is almost certainly necessary. We also show that the problem of determining whether a sandpile state is recurrent
Moore, Cristopher, Nilsson, Martin
openaire +2 more sources
Modelling stem cell differentiation related processes—A practical overview for biologists
FEBS Letters, EarlyView.Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar +4 more
wiley +1 more source
Low computational complexity variable block size (VBS) partitioning for motion estimation using the Walsh Hadamard transform (WHT) [PDF]
, 2009 Variable Block Size (VBS) based motion estimation has been adapted in state of the art video coding, such as H.264/AVC, VC-1. However, a low complexity H.264/AVC encoder cannot take advantage of VBS due to its power consumption requirements.
Kim, Chanyul +4 more
core +2 more sources