Results 11 to 20 of about 1,337,805 (372)
SSRN Electronic Journal, 2021 Even moderate amounts of zero returns in financial data, associated with stale prices, are heavily detrimental for reliable jump inference. We harness staleness-robust estimators to reappraise the statistical features of jumps in financial markets. We find that jumps are much less frequent and much less contributing to price variation than what found ...
Kolokolov, Aleksey, Renò, Roberto
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Jump-Start Reinforcement Learning [PDF]
International Conference on Machine Learning, 2022 Reinforcement learning (RL) provides a theoretical framework for continuously improving an agent's behavior via trial and error. However, efficiently learning policies from scratch can be very difficult, particularly for tasks with exploration challenges.
Ikechukwu Uchendu +11 more
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Sports Medicine, 2023 Background The heights obtained during the countermovement jump and drop jump tests have been measured by numerous studies using different calculation methods and pieces of equipment.
Jiaqing Xu +6 more
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British Journal of Sports Medicine, 2022 Objectives Vertical jump performance (height) is a more representative metric for knee function than horizontal hop performance (distance) in healthy individuals. It is not known what the biomechanical status of athletes after anterior cruciate ligament (
Argyro Kotsifaki +6 more
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JuMP: A Modeling Language for Mathematical Optimization [PDF]
SIAM Review, 2015 JuMP is an open-source modeling language that allows users to express a wide range of optimization problems (linear, mixed-integer, quadratic, conic-quadratic, semidefinite, and nonlinear) in a high-level, algebraic syntax.
Iain Dunning, Joey Huchette, Miles Lubin
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To jump or not to jump: The Bereitschaftspotential required to jump into 192-meter abyss [PDF]
Scientific Reports, 2018 AbstractSelf-initiated voluntary acts, such as pressing a button, are preceded by a negative electrical brain potential, the Bereitschaftspotential (BP), that can be recorded over the human scalp using electroencephalography (EEG). Up to now, the BP required to initiate voluntary acts has only been recorded under well-controlled laboratory conditions ...
Nann, M. +3 more
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DIY: Creating Performance Assessments that Measure Up!
MedEdPORTAL, 2014 Introduction The demand for simulation educators to become involved in high stakes performance assessment is growing rapidly. The ability to construct reliable and valid performance assessments, and to evaluate those already available, is necessary in ...
Ann Willemsen-Dunlap +5 more
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To catch and reverse a quantum jump mid-flight [PDF]
Nature, 2018 In quantum physics, measurements can fundamentally yield discrete and random results. Emblematic of this feature is Bohr’s 1913 proposal of quantum jumps between two discrete energy levels of an atom1. Experimentally, quantum jumps were first observed in
Z. Minev +10 more
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JUMP ABILITY AND FORCE-VELOCITY PROFILE IN RHYTHMIC GYMNASTICS
Science of Gymnastics Journal, 2023 The jump is one of the main body elements in Rhythmic Gymnastics (RG). To perform it correctly, gymnasts must develop appropriate force and velocity levels to reach enough jump height to show the body shape during flight, as defined by the RG Code of ...
Luciana Ferreira Melo de Sá +3 more
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Modern Physics Letters A, 2013 We propose an alternative paradigm to the conjectured Miransky scaling potentially underlying the physics describing the transition from the conformally broken to the conformally restored phase when tuning certain parameters such as the number of flavors in gauge theories.
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