The Application of Complexity Analysis in Brain Blood-Oxygen Signal [PDF]
Brain Sciences, 2021 One of the daunting features of the brain is its physiology complexity, which arises from the interaction of numerous neuronal circuits that operate over a wide range of temporal and spatial scales, enabling the brain to adapt to the constantly changing ...
Xiaoyang Xin +3 more
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On the Complexity of Numerical Analysis [PDF]
21st Annual IEEE Conference on Computational Complexity (CCC'06), 2006 We study two quite different approaches to understanding the complexity of fundamental problems in numerical analysis. We show that both hinge on the question of understanding the complexity of the following problem, which we call PosSlp: Given a division-free straight-line program producing an integer N, decide whether N>0.
Allender, Eric +3 more
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fNIRS Complexity Analysis for the Assessment of Motor Imagery and Mental Arithmetic Tasks [PDF]
Entropy, 2020 Conventional methods for analyzing functional near-infrared spectroscopy (fNIRS) signals primarily focus on characterizing linear dynamics of the underlying metabolic processes.
Ameer Ghouse +2 more
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Complexity Analysis of a Versatile Video Coding Decoder over Embedded Systems and General Purpose Processors [PDF]
Sensors, 2021 The increase in high-quality video consumption requires increasingly efficient video coding algorithms. Versatile video coding (VVC) is the current state-of-the-art video coding standard.
Anup Saha +5 more
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Complexity Analysis of Skin Nerve Activity for Quantitative Assessment of Acute Sympathetic Nervous System Activation [PDF]
SensorsSkin nerve activity (SKNA), extracted from electrocardiograms, is a noninvasive surrogate of sympathetic nervous system (SNS) activity. We evaluated whether complexity-based metrics derived from integrated SKNA (iSKNA; 500–1000 Hz) and time-varying SKNA (
Youngsun Kong +5 more
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Interacting tipping elements increase risk of climate domino effects under global warming [PDF]
Earth System Dynamics, 2021 With progressing global warming, there is an increased risk that one or several tipping elements in the climate system might cross a critical threshold, resulting in severe consequences for the global climate, ecosystems and human societies.
N. Wunderling +8 more
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Earth system modeling with endogenous and dynamic human societies: the copan:CORE open World–Earth modeling framework [PDF]
Earth System Dynamics, 2020 Analysis of Earth system dynamics in the Anthropocene requires explicitly taking into account the increasing magnitude of processes operating in human societies, their cultures, economies and technosphere and their growing feedback entanglement with ...
J. F. Donges +22 more
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Network motifs shape distinct functioning of Earth’s moisture recycling hubs
Nature Communications, 2022 By using network motifs, a new view of the global hydrological cycle is offered. With them, it is revealed that the Amazon rainforest is a one-of-a-kind moisture recycling hub, which shows that the ecosystem may be subject to increased ...
Nico Wunderling +3 more
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Probabilistic analysis of the complexity of A∗ [PDF]
Artificial Intelligence, 1980 Abstract This paper analyzes the number of nodes expanded by A∗ as a function of the accuracy of its heuristic estimates by treating the errors h∗ - h as random variables whose distributions may vary over the nodes in the graph. Our model consists of an m-ary tree with unit branch costs and a unique goal state situated at a distance N ...
Nam Huyn, Rina Dechter, Judea Pearl
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What do we mean, ‘tipping cascade’?
Environmental Research Letters, 2021 Based on suggested interactions of potential tipping elements in the Earth’s climate and in ecological systems, tipping cascades as possible dynamics are increasingly discussed and studied.
Ann Kristin Klose +3 more
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