It’s easy to fool yourself: Case studies on identifying bias and confounding in bio-medical datasets

Posted by klaurent Harvard

Kavli Affiliate: Michael Brenner | First 5 Authors: Subhashini Venugopalan, Arunachalam Narayanaswamy, Samuel Yang, Anton Geraschenko, Scott Lipnick | Summary: Confounding variables are a well known source of nuisance in biomedical studies. They present an even greater challenge when we combine them with black-box machine learning techniques that operate on raw data. This work presents […]


Continue.. It’s easy to fool yourself: Case studies on identifying bias and confounding in bio-medical datasets

Ultrafast Tracking of Exciton and Charge Carrier Transport in Optoelectronic Materials on the Nanometer Scale

Posted by klaurent Oxford

Kavli Affiliate: Philipp Kukura | Summary:We present a novel optical transient absorption and reflection microscope based on a diffraction-limited pump pulse in combination with a wide-field probe pulse, for the spatio-temporal investigation of ultrafast population transport in thin films. The microscope achieves a temporal resolution down to 12 fs and simultaneously provides sub-10 nm spatial […]


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Measurement of Beam-Correlated Background Neutrons from the Fermilab Booster Neutrino Beam in ANNIE Phase-I

Posted by klaurent Tokyo

Kavli Affiliate: Mark Vagins | Summary:The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) aims to make a unique measurement of neutron yield from neutrino-nucleus interactions and to perform R&D for the next generation of water-based neutrino detectors. In this paper, we characterize beam-induced neutron backgrounds in the experimental hall at Fermi National Accelerator Laboratory. It is […]


Continue.. Measurement of Beam-Correlated Background Neutrons from the Fermilab Booster Neutrino Beam in ANNIE Phase-I

The Scenario Culture

Posted by klaurent Cornell

Kavli Affiliate: Daniel Ralph | First 5 Authors: Edward Wheatcroft, Henry Wynn, Chris J. Dent, Jim Q. Smith, Claire L. Copeland | Summary: Scenario Analysis is a risk assessment tool that aims to evaluate the impact of a small number of distinct plausible future scenarios. In this paper, we provide an overview of important aspects […]


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Role of Element-Specific Damping on the Ultrafast, Helicity-Independent All-Optical Switching Dynamics in Amorphous (Gd,Tb)Co Thin Films

Posted by klaurent Cornell

Kavli Affiliate: Amal El-Ghazaly | Summary:Ultrafast control of the magnetization in ps timescales by fs laser pulses offers an attractive avenue for applications such as fast magnetic devices for logic and memory. However, ultrafast helicity-independent all-optical switching (HI-AOS) of the magnetization has thus far only been observed in Gd-based, ferrimagnetic amorphous (textita-) rare earth-transition metal […]


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Pressure-induced superconductivity in topological type II Dirac semimetal NiTe2

Posted by klaurent Caltech

Kavli Affiliate: N. C. Yeh |Summary:Very recently, NiTe2 has been reported to be a type II Dirac semimetal with Dirac nodes near the Fermi surface. Furthermore, it is unveiled that NiTe2 presents the Hall Effect, which is ascribed to orbital magnetoresistance. The physical properties behavior of NiTe2 under high pressure attracts us. In this paper, […]


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Perturbation theory for the redshift-space matter power spectra after reconstruction

Posted by klaurent Tokyo

Kavli Affiliate: Chiaki Hikage | Summary:We derive the one-loop perturbative formula of the redshift-space matter power spectrum after density field reconstruction in the Zeldovich approximation. We find that the reconstruction reduces the amplitudes of nonlinear one-loop perturbative terms significantly by partially erasing the nonlinear mode-coupling between density and velocity fields. In comparison with N-body simulations, […]


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Language Grounding through Social Interactions and Curiosity-Driven Multi-Goal Learning

Posted by klaurent MIT

Kavli Affiliate: Peter Ford | Summary:Autonomous reinforcement learning agents, like children, do not have access to predefined goals and reward functions. They must discover potential goals, learn their own reward functions and engage in their own learning trajectory. Children, however, benefit from exposure to language, helping to organize and mediate their thought. We propose LE2 […]


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Parity-Violating Inelastic Electron-Proton Scattering at Low $Q^2$ Above the Resonance Region

Posted by klaurent Cambridge

Kavli Affiliate: A. C. Davis | Summary:We report the measurement of the parity-violating asymmetry for the inelastic scattering of electrons from the proton, at $Q^2 = 0.082$ GeV$^2$ and $ W = 2.23$ GeV, above the resonance region. The result $A_rm Inel = – 13.5 pm 2.0 (rm stat) pm 3.9 (rm syst)$~ppm agrees with […]


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Large depth-of-field tracking of colloidal spheres in holographic microscopy by modeling the objective lens

Posted by klaurent Harvard

Kavli Affiliate: Vinothan Manoharan | First 5 Authors: Brian Leahy, Ronald Alexander, Caroline Martin, Solomon Barkley, Vinothan Manoharan | Summary: Holographic microscopy has developed into a powerful tool for 3D particle tracking, yielding nanometer-scale precision at high frame rates. However, current particle tracking algorithms ignore the effect of the microscope objective on the formation of […]


Continue.. Large depth-of-field tracking of colloidal spheres in holographic microscopy by modeling the objective lens