A Finite Sample Complexity Bound for Distributionally Robust Q-learning
February 25, 2023
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Computer Science
Statistics
Machine Learning
Machine Learning
We consider a reinforcement learning setting in which the deployment
environment is different from the training environment. Applying a robust
Markov decision processes formulation, we extend the distributionally robust
Q-learning framewo...
Microstructural Underpinnings of Giant Intrinsic Exchange Bias in
Epitaxial NiCo2O4 Thin Films
February 25, 2023
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Physics
Materials Science
Applied Physics
Understanding intrinsic exchange bias in nominally single-component
ferromagnetic or ferrimagnetic materials is crucial for simplifying related
device architectures. However, the mechanisms behind this phenomenon and its
tunability remain e...
Toward Self-Adjusting k-ary Search Tree Networks
February 25, 2023
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Computer Science
Networking and Internet Architecture
Data Structures and Algorithms
Datacenter networks are becoming increasingly flexible with the incorporation
of new networking technologies, such as optical circuit switches. These
technologies allow for programmable network topologies that can be reconfigured
to better ...
Construction numbers: How to build a graph?
February 25, 2023
Mathematics
Computer Science
Combinatorics
Artificial Intelligence
Counting the number of linear extensions of a partial order was considered by
Stanley about 50 years ago. For the partial order on the vertices and edges of
a graph given by inclusion, we call a linear extension a {\it construction
sequence...
Determining skew left braces of size np
February 25, 2023
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Mathematics
Group Theory
Number Theory
We define the twofold semidirect product of two skew left braces, in which
both the additive and multiplicative groups are semidirect products of the
corresponding groups of the given skew left braces. We consider an odd prime
p and an in...
Classifying solutions of SU(n+1) Toda system around a singular
source
February 25, 2023
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Mathematics
Analysis of PDEs
Complex Variables
Differential Geometry
Consider a positive integer n and γ1>−1,⋯,γn>−1. Let
D={z∈C:∣z∣<1}, and let (aij)n×n denote the Cartan
matrix of su(n+1). Utilizing the ordinary differential equation of
(n+1)th or...
Prompt-based Learning for Text Readability Assessment
February 25, 2023
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Computer Science
Computation and Language
Artificial Intelligence
We propose the novel adaptation of a pre-trained seq2seq model for
readability assessment. We prove that a seq2seq model - T5 or BART - can be
adapted to discern which text is more difficult from two given texts
(pairwise). As an explorator...
Estimating Fiscal Multipliers by Combining Statistical Identification
with Potentially Endogenous Proxies
February 25, 2023
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Economics
Econometrics
Different proxy variables used in fiscal policy SVARs lead to contradicting
conclusions regarding the size of fiscal multipliers. We show that the
conflicting results are due to violations of the exogeneity assumptions, i.e.
the commonly us...
Isolated Suborders and their Application to Counting Closure Operators
February 25, 2023
Computer Science
Discrete Mathematics
In this paper we investigate the interplay between isolated suborders and
closures. Isolated suborders are a special kind of suborders and can be used to
diminish the number of elements of an ordered set by means of a quotient
construction....
Reinforcement Learning based Autonomous Multi-Rotor Landing on Moving
Platforms
February 25, 2023
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Computer Science
Electrical Engineering and Systems Science
Robotics
Systems and Control
Systems and Control
Multi-rotor UAVs suffer from a restricted range and flight duration due to
limited battery capacity. Autonomous landing on a 2D moving platform offers the
possibility to replenish batteries and offload data, thus increasing the
utility of t...