Results 11 to 20 of about 784,362 (267)

Worst case complexity of direct search

open access: yesEURO Journal on Computational Optimization, 2013
In this paper, we prove that the broad class of direct-search methods of directional type based on imposing sufficient decrease to accept new iterates shares the worst case complexity bound of steepest descent for the unconstrained minimization of a ...
L.N. Vicente
doaj   +1 more source

Directed Search and Competitive Search Equilibrium: A Guided Tour [PDF]

open access: yesJournal of Economic Literature, 2021
This essay surveys the literature on directed search and competitive search equilibrium, covering theory and a variety of applications. These models share features with traditional search theory, but also differ in important ways. They share features with general equilibrium theory, but with explicit frictions.
Wright, Randall   +3 more
openaire   +2 more sources

Googling Referendum Campaigns: Analyzing Online Search Patterns Regarding Swiss Direct-Democratic Votes

open access: yesMedia and Communication, 2023
In direct democracies, voters are faced with considerable information demands. Although search engines are an important gateway to political information, it is still unclear what role they play in citizens’ information behavior regarding referendum ...
Sina Blassnig   +3 more
doaj   +1 more source

DELight: A Direct search Experiment for Light dark matter with superfluid helium

open access: yesSciPost Physics Proceedings, 2023
To reach ultra-low detection thresholds necessary to probe unprecedentedly low Dark Matter masses, target material alternatives and novel detector designs are essential.
Belina von Krosigk, Klaus Eitel, Christian Enss, Torben Ferber, Loredana Gastaldo, Felix Kahlhoefer, Sebastian Kempf, Markus Klute, Sebastian Lindemann, Marc Schumann, Francesco Toschi, Kathrin Valerius
doaj   +1 more source

New Directions in Direct Dark Matter Searches [PDF]

open access: yesAdvances in High Energy Physics, 2014
I present the status of direct dark matter detection with specific attention to the experimental results and their phenomenological interpretation in terms of dark matter interactions. In particular I review a new and more general approach to study signals in this field based on nonrelativistic operators which parametrize more efficiently the dark ...
openaire   +5 more sources

A Direct Search Algorithm for Global Optimization

open access: yesAlgorithms, 2016
A direct search algorithm is proposed for minimizing an arbitrary real valued function. The algorithm uses a new function transformation and three simplex-based operations.
Enrique Baeyens   +2 more
doaj   +1 more source

A direct dark matter search in XMASS-I

open access: yesPhysics Letters B, 2019
A search for dark matter using an underground single-phase liquid xenon detector was conducted at the Kamioka Observatory in Japan, particularly for Weakly Interacting Massive Particles (WIMPs).
K. Abe   +40 more
doaj   +1 more source

Directed Search with Endogenous Capacity [PDF]

open access: yesThe B.E. Journal of Theoretical Economics, 2015
AbstractWe study a large economy where capacity-constrained sellers post prices to attract buyers. Capacity is costly and each seller chooses how many units to stock, which allows us to study the relationship between search frictions and capacity. We show that no equilibrium exists with linear costs; however, sufficiently convex costs are enough for ...
Kultti Klaus Kalervo   +1 more
openaire   +2 more sources

Direct Dark Matter search with XENON100

open access: yesEPJ Web of Conferences, 2016
The XENON100 experiment is the second phase of the XENON program for the direct detection of the dark matter in the universe. The XENON100 detector is a two-phase Time Projection Chamber filled with 161 kg of ultra pure liquid xenon. The results from 224.
Orrigo S.E.A.
doaj   +1 more source

Search for direct production of the f1(1285) resonance in e+e− collisions

open access: yesPhysics Letters B, 2020
A search for direct production of the f1(1285) resonance in e+e− annihilation is performed with the SND detector at the VEPP-2000 e+e− collider. The analysis is based on data with an integrated luminosity of 15.1 pb−1 accumulated in the center-of-mass ...
M.N. Achasov   +37 more
doaj   +1 more source

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