We develop two methods for expressing the global index of the gradient of a 2
variable polynomial function f: in terms of the atypical fibres of f, and
in terms of the clusters of Milnor arcs at infinity. These allow us to derive
upper ...
AnnoLLM: Making Large Language Models to Be Better Crowdsourced
Annotators
March 29, 2023
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Computer Science
Computation and Language
Many natural language processing (NLP) tasks rely on labeled data to train
machine learning models with high performance. However, data annotation is
time-consuming and expensive, especially when the task involves a large amount
of data or ...
Power sector effects of alternative options for de-fossilizing
heavy-duty vehicles: go electric, and charge smartly
March 29, 2023
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Economics
Quantitative Finance
General Economics
Economics
In the passenger car segment, battery-electric vehicles (BEV) have emerged as
the most promising option to de-fossilize transportation. For heavy-duty
vehicles (HDV), the technology space still appears to be more open. Aside from
BEV, elect...
Degeneracy in excited-state quantum phase transitions of two-level
bosonic models and its influence on system dynamics
March 29, 2023
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Physics
Quantum Physics
Statistical Mechanics
Nuclear Theory
Excited-state quantum phase transitions (ESQPTs) strongly influence the
spectral properties of collective many-body quantum systems, changing
degeneracy patterns in different quantum phases. Level degeneracies, in turn,
affect the system's ...
Exact steady states of the impurity-doped XXZ spin chain coupled to
dissipators
March 29, 2023
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Physics
Statistical Mechanics
We give an exact matrix product steady state and matrix product forms of
local observables for the bulk impurity-doped XXZ spin model coupled to
dissipators at both ends, whose dynamics is described by the Lindblad quantum
master equation. ...
Potential quantum advantage for simulation of fluid dynamics
March 29, 2023
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Physics
Quantum Physics
Atmospheric and Oceanic Physics
Fluid Dynamics
Numerical simulation of turbulent fluid dynamics needs to either parameterize
turbulence-which introduces large uncertainties-or explicitly resolve the
smallest scales-which is prohibitively expensive. Here we provide evidence
through analy...
Sparse joint shift in multinomial classification
March 29, 2023
Statistics
Computer Science
Mathematics
Machine Learning
Machine Learning
Statistics Theory
Statistics Theory
Sparse joint shift (SJS) was recently proposed as a tractable model for
general dataset shift which may cause changes to the marginal distributions of
features and labels as well as the posterior probabilities and the
class-conditional feat...
Effect of Coriolis force on the shear viscosity of quark matter: A
nonrelativistic description
March 29, 2023
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Physics
Nuclear Theory
Statistical Mechanics
High Energy Physics - Phenomenology
Shear viscosity becomes anisotropic in a rotating medium. It is discovered
here that for rotating thermalized quantum systems such as those created in
relativistic heavy-ion collisions, the coeffficient of shear viscosity breaks
up into fiv...
Scalable Implicit Solvers with Dynamic Mesh Adaptation for a
Relativistic Drift-Kinetic Fokker-Planck-Boltzmann Model
March 29, 2023
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Mathematics
Computer Science
Physics
Numerical Analysis
Numerical Analysis
Computational Physics
Plasma Physics
In this work we consider a relativistic drift-kinetic model for runaway
electrons along with a Fokker-Planck operator for small-angle Coulomb
collisions, a radiation damping operator, and a secondary knock-on (Boltzmann)
collision source. W...
Averting the infrared catastrophe in the gold standard of quantum
chemistry
March 29, 2023
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Physics
Materials Science
Coupled-cluster theories can be used to compute ab initio electronic
correlation energies of real materials with systematically improvable accuracy.
However, the widely-used coupled cluster singles and doubles plus perturbative
triples (CCS...