Results 11 to 20 of about 2,631,672 (317)

A mixed distribution to fix the threshold for Peak-Over-Threshold wave height estimation [PDF]

open access: yes, 2022
Modelling extreme values distributions, such as wave height time series where the higher waves are much less frequent than the lower ones, has been tackled from the point of view of the Peak-Over-Threshold (POT) methodologies, where modelling is based on
Hervás Martínez, César   +6 more
core   +1 more source

Thresholds and Expectation Thresholds [PDF]

open access: yesCombinatorics, Probability and Computing, 2007
We consider relations between thresholds for monotone set properties and simple lower bounds for such thresholds. A motivating example (Conjecture 2): Given an n-vertex graph H, write pE for the least p such that, for each subgraph H' of H, the expected number of copies of H' in G=G(n, p) is at least 1, and pc for that p for which the probability that ...
Jeff Kahn, Gil Kalai
openaire   +3 more sources

Thresholds versus fractional expectation-thresholds [PDF]

open access: yesAnnals of Mathematics, 2021
16 pages, submitted, now includes some discussion of ...
Keith Frankston   +3 more
openaire   +2 more sources

On the threshold of intractability [PDF]

open access: yesJournal of Computer and System Sciences, 2015
We study the computational complexity of the graph modification problems Threshold Editing and Chain Editing, adding and deleting as few edges as possible to transform the input into a threshold (or chain) graph. In this article, we show that both problems are NP-complete, resolving a conjecture by Natanzon, Shamir, and Sharan (Discrete Applied ...
Pål Grønås Drange   +3 more
openaire   +2 more sources

Threshold Queries

open access: yesACM SIGMOD Record, 2023
Threshold queries are an important class of queries that only require computing or counting answers up to a specified threshold value. To the best of our knowledge, threshold queries have been largely disregarded in the research literature, which is surprising considering how common they are in practice.
Bonifati, Angela   +9 more
openaire   +1 more source

Threshold sampling

open access: yesTheoretical Computer Science, 2023
Abstract We consider the problem of sampling elements with some desired property from a large set, without testing the property of interest, but with the (probabilistic) assurance to have at least one match among the random sample. Like in ranked set sampling, we consider an infinite population under study, whose properties of interest are too ...
Rass, Stefan   +3 more
openaire   +1 more source

Shell rupture threshold, fragmentation threshold, blake threshold [PDF]

open access: yesIEEE Ultrasonics Symposium, 2005., 2006
The disruption of contrast agent microbubbles has been implicated in novel techniques for high-MI imaging and local drug delivery. At MI>0.6, microbubble fragmentation has been observed with thin-shelled agent (≈10 nm), and shell rupture with thick-shelled agent (≈250 nm).
Postema, Michiel   +2 more
openaire   +2 more sources

Threshold effects in cointegrating relationships [PDF]

open access: yes, 2006
In this paper, we introduce threshold-type nonlinearities within a single-equation cointegrating regression model and propose a testing procedure for testing the null hypothesis of linear cointegration vs. cointegration with threshold effects.
Gonzalo, Jesús   +4 more
core   +1 more source

Hypoxia-Targeting Drug Evofosfamide (TH-302) Enhances Sunitinib Activity in Neuroblastoma Xenograft Models

open access: yesTranslational Oncology, 2018
Antiangiogenic therapy has shown promising results in preclinical and clinical trials. However, tumor cells acquire resistance to this therapy by gaining ability to survive and proliferate under hypoxia induced by antiangiogenic therapy.
Sushil Kumar   +11 more
doaj   +1 more source

Made in Greece: PALSO Federation and foreign language education in Greece [PDF]

open access: yesTraining, Language and Culture, 2018
For over 50 years the private language school system in Greece, commonly known by the Greek name ‘frontisterion’, has pioneered the development of language studies making Greece one of the publishing market leaders in continental Europe in books and ...
Nicolaos Maras, Karen Lee
doaj   +1 more source

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