Results 101 to 110 of about 112,689 (295)

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

open access: yesAdvanced Materials, EarlyView.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang   +20 more
wiley   +1 more source

Testing for Mobility Dominance [PDF]

open access: yes
This paper proposes tests for stochastic dominance in mobility based on the empirical likelihood ratio. Two views of mobility are considered, either based on measures of absolute mobility or on transition matrices.
Jean-Yves Duclos, Yélé Maweki Batana
core  

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

open access: yesAdvanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho   +3 more
wiley   +1 more source

Two New Tests for the Relationships of Stochastic Dominance

open access: yesAxioms
To test the relationships of stochastic dominance, this paper firstly proposes two new consistent K-S-type statistics based on a quantile rule. Then, we consider their asymptotic properties.
Weiwei Zhuang, Haowei He, Guoxin Qiu
doaj   +1 more source

Risky Decision making: Testing for violations of transitivity predicted by an editing mechanism [PDF]

open access: yesJudgment and Decision Making, 2016
Transitivity is the assumption that if a person prefers A to B and B to C, then that person should prefer A to C. This article explores a paradigm in which Birnbaum, Patton and Lott (1999) thought people might be systematically intransitive.
Michael H. Birnbaum   +4 more
doaj  

Evaluating hedge fund performance: a stochastic dominance approach [PDF]

open access: yes, 2007
We introduce a general and flexible framework for hedge fund performance evaluation and asset allocation: stochastic dominance (SD) theory. Our approach utilizes statistical tests for stochastic dominance to compare the returns of hedge funds.
Li, Sheng, Linton, Oliver
core  

On Strassen's Theorem on Stochastic Domination [PDF]

open access: yesElectronic Communications in Probability, 1999
The present paper offers a complete and straightforward proof of Strassen's famous theorem about stochastic domination, see \textit{V. Strassen} [Ann. Math. Stat. 36, 423-439 (1965; Zbl 0135.18701)], and the attention is drawn to the original paper. The theorem states that if a distribution \(P\) on some space \((E,\leq)\) is dominated by another \(P'\)
openaire   +3 more sources

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

open access: yesAdvanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang   +9 more
wiley   +1 more source

All‐Optical Reconfigurable Physical Unclonable Function for Sustainable Security

open access: yesAdvanced Materials, EarlyView.
An all‐optical reconfigurable physical unclonable function (PUF) is demonstrated using plasmonic coupling–induced sintering of optically trapped gold nanoparticles, where Brownian motion serves as a robust entropy source. The resulting optical PUF exhibits high encoding density, strong resistance to modeling attacks, and practical authentication ...
Jang‐Kyun Kwak   +4 more
wiley   +1 more source

Enhancing Portfolio Decarbonization Through SensitivityVaR and Distorted Stochastic Dominance

open access: yesRisks
Recent trends in portfolio management emphasize the importance of reducing carbon footprints and aligning investments with sustainable practices. This paper introduces Sensitivity Value-at-Risk (SensitivityVaR), an advanced distortion risk measure that ...
Aniq Rohmawati   +3 more
doaj   +1 more source

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