Pushing Photons with Electrons: Observation of the Polariton Drag Effect
August 23, 2018
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Physics
Quantum Gases
We show the direct effect of free electrons colliding with polaritons,
changing their momentum. The result of this interaction of the electrons with
the polaritons is a change in the angle of emission of the photons from our
cavity structur...
Learning to Importance Sample in Primary Sample Space
August 23, 2018
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Computer Science
Statistics
Machine Learning
Graphics
Machine Learning
Importance sampling is one of the most widely used variance reduction
strategies in Monte Carlo rendering. In this paper, we propose a novel
importance sampling technique that uses a neural network to learn how to sample
from a desired dens...
Anomalous negative magnetoresistance in quantum-dot Josephson junctions
with Kondo correlations
August 21, 2018
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Physics
Mesoscale and Nanoscale Physics
The interplay between superconductivity and the Kondo effect has stimulated
significant interest in condensed matter physics. They compete when their
critical temperatures are close and can give rise to a quantum phase transition
that can m...
Compressed decision problems in hyperbolic groups
August 21, 2018
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Mathematics
Group Theory
We prove that the compressed word problem and the compressed simultaneous
conjugacy problem are solvable in polynomial time in hyperbolic groups. In such
problems, group elements are input as words defined by straight line programs
defined ...
Universal Proof Theory: Semi-analytic Rules and Craig Interpolation
August 19, 2018
|
Computer Science
Mathematics
Logic in Computer Science
Logic
We provide a general and syntactically-defined family of sequent calculi,
called \emph{semi-analytic}, to formalize the informal notion of a "nice"
sequent calculus. We show that any sufficiently strong (multimodal)
substructural logic with...
On the Predictability of non-CGM Diabetes Data for Personalized
Recommendation
August 18, 2018
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Computer Science
Statistics
Computers and Society
Machine Learning
Machine Learning
With continuous glucose monitoring (CGM), data-driven models on blood glucose
prediction have been shown to be effective in related work. However, such (CGM)
systems are not always available, e.g., for a patient at home. In this work, we
co...
Construction of Kuranishi structures on the moduli spaces of pseudo
holomorphic disks: II
August 18, 2018
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Mathematics
Symplectic Geometry
This is the second of a series of two articles in which we provide detailed
and self-contained account of the construction of a system of Kuranishi
structures on the moduli spaces of pseudo holomorphic disks. Using the notion
of obstruction...
On the Convergence of Adaptive Gradient Methods for Nonconvex
Optimization
August 16, 2018
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Computer Science
Mathematics
Statistics
Machine Learning
Optimization and Control
Machine Learning
Adaptive gradient methods are workhorses in deep learning. However, the
convergence guarantees of adaptive gradient methods for nonconvex optimization
have not been thoroughly studied. In this paper, we provide a fine-grained
convergence an...
Separating measurable recurrence from strong recurrence via rigidity
sequences
August 16, 2018
Mathematics
Dynamical Systems
If G is an abelian group, we say S⊂G is a set of recurrence if for
every probability measure preserving G-system (X,μ,T) and every D⊂X having μ(D)>0, there is a g∈S such that μ(D∩TgD)>0. We
say ...
A confounding bridge approach for double negative control inference on
causal effects
August 14, 2018
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Statistics
Methodology
Unmeasured confounding is a key challenge for causal inference. In this
paper, we establish a framework for unmeasured confounding adjustment with
negative control variables. A negative control outcome is associated with the
confounder but ...