Results 11 to 20 of about 8,501,693 (344)
Information Systems, 2014 In this paper we study a novel query type, called direct neighbor query. Two objects in a dataset are direct neighbors (DNs) if a window selection may exclusively retrieve these two objects. Given a source object, a DN search computes all of its direct neighbors in the dataset.
Jilian Zhang +2 more
openaire +5 more sources
Direct Search Based on Probabilistic Descent in Reduced Spaces [PDF]
SIAM Journal on Optimization, 2022 In this paper, we study a generic direct-search algorithm in which the polling directions are defined using random subspaces. Complexity guarantees for such an approach are derived thanks to probabilistic properties related to both the subspaces and the ...
Lindon Roberts, C. Royer
semanticscholar +1 more source
Optimal Radio Propagation Modeling and Parametric Tuning Using Optimization Algorithms
Information, 2023 Benchmarking different optimization algorithms is tasky, particularly for network-based cellular communication systems. The design and management process of these systems involves many stochastic variables and complex design parameters that demand an ...
Joseph Isabona +6 more
doaj +1 more source
Directed Search with Phantom Vacancies [PDF]
SSRN Electronic Journal, 2020 AbstractWhen vacancies are filled, the job ads often remain, creating phantom vacancies. Older listings more likely represent phantoms. We assume job seekers direct their search based on listing age. Forming a match with an age‐a vacancy creates an age‐a phantom with probability β and generates an externality affecting vacancies aged a and older. Thus,
Albrecht, James +2 more
openaire +3 more sources
New methods for developing parallel algorithms of direct search in numerical optimization [PDF]
مجلة التربية والعلم, 2013 The Purpose of this research is the development Direct Search Methods for minimizing the objective function; The Developed Methods reduces the approach time to the minimum through two techniques: 1) by reducing the number of function evaluation.
Firas Mahmood Saeed +1 more
doaj +1 more source
Tabu Search directed by direct search methods for nonlinear global optimization [PDF]
European Journal of Operational Research, 2006 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abdel-Rahman Hedar, Masao Fukushima
openaire +1 more source
Directed search and job rotation [PDF]
Journal of Economic Theory, 2012 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Fei, Tian, Can
openaire +3 more sources
Derivative Free Optimal Thrust Allocation in Ship Dynamic Positioning Based on Direct Search Algorithms [PDF]
TransNav, 2020 In dynamic positioning systems, nonlinear cost functions, as well as nonlinear equality and inequality constraints within optimal thrust allocation procedures cannot be handled directly by means of the solvers like industry-standardized quadratic ...
Marko Valčic, Jasna Prpic-OrŁic
doaj +1 more source
Direct Answers in Google Search Results
IEEE Access, 2020 This study aims to explore Google's new “featured snippet” (a direct answer that appears in web search results) to better understand the method of extracting and displaying such answers above regular ranked results.
Artur Strzelecki, Paulina Rutecka
doaj +1 more source
Dark matter direct search sensitivity of the PandaX-4T experiment [PDF]
Science China Physics Mechanics and Astronomy, 2018 The PandaX-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Un- derground Laboratory. In this paper we present a simulation study of the expected background in this experiment.
Hongguang Zhang +61 more
semanticscholar +1 more source