We define a very general class of estimators for the conditional moment problem, which we term the variational method of moments (vmm), and provide conditions under which these are consistent, asymptotically normal, and semiparametrically efficient in the full conditional moment model.
We additionally provide algorithms for valid statistical inference based on the same kind of variational reformulations, both for kernel-and neural-net-based varieties, and demonstrate the strong performance of our proposed estimation and inference algorithms in a detailed series of synthetic experiments.
The variational method is a powerful approach to solve many-body quantum
problems non perturbatively. However, in the context of relativistic quantum
field theory (QFT), it needs to meet 3 seemingly i
Obtaining precise instance segmentation masks is of high importance in many modern applications such as robotic manipulation and autonomous driving. Currently, many state of the art models are based o
Stochastic dynamics are ubiquitous in many fields of science, from the
evolution of quantum systems in physics to diffusion-based models in machine
learning. Existing methods such as score matching ca
We investigate the infinite volume limit of the variational description of
Euclidean quantum fields introduced in a previous work. Focussing on two
dimensional theories for simplicity, we prove in det
In this work we present a novel approach for single depth map
super-resolution. Modern consumer depth sensors, especially Time-of-Flight
sensors, produce dense depth measurements, but are affected by
Stochastic variational inference offers an attractive option as a default
method for differentiable probabilistic programming. However, the performance
of the variational approach depends on the choic
Ground-state preparation for a given hamiltonian is a common quantum-computing task of great importance and has relevant applications in quantum chemistry, computational material modeling, and combinatorial optimization.
We consider an approach to simulate dissipative non-hermitianhamiltonian quantum dynamics using hamiltonian simulation techniques to efficiently recover the ground state of a target hamiltonian.
We present a variational method for online state estimation and parameter
learning in state-space models (SSMs), a ubiquitous class of latent variable
models for sequential data. As per standard batch
A variational method for studying the ground state of strongly interacting
quantum many-body bosonic systems is presented. Our approach constructs a class
of extensive variational non-Gaussian wavefun
Contrastive representation learning seeks to acquire useful representations by estimating the shared information between multiple views of data.
Here, the choice of data augmentation is sensitive to the quality of learned representations : as harder the data augmentations are applied, the views share more task-relevant information, but also task-irrelevant one that can hinder the generalization capability of representation.
We study in detail the consequences of constraining a quantum particle to a helix, catenary, helicoid, or catenoid, exploring the relations between these curves and surfaces using differential geometry.
Initially, we use the variationalmethod to estimate the energy of the particle in its ground state, and then, we obtain better approximations with the use of the confluent heun functionthrough numerical calculations.
This paper focuses on the so-called Weighted Inertia-Dissipation-Energy
(WIDE) variational approach for the approximation of unsteady Leray-Hopf
solutions of the incompressible Navier-Stokes system. I
The coherent superposition of non-orthogonal fermionic Gaussian states has
been shown to be an efficient approximation to the ground states of quantum
impurity problems [Bravyi and Gosset,Comm. Math.
We propose a novel variational method for solving the sub-graph isomorphism
problem on a gate-based quantum computer. The method relies (1) on a new
representation of the adjacency matrices of the und
In this tutorial we introduce the reader to several theoretical methods of determining the exciton wave functions and the corresponding eigenenergies in two-dimensional gapped materials.
The methods covered are either analytical, semi-analytical, or numeric.
In this paper, we study the sufficient conditions for the existence of
solutions of first-order Hamiltonian stochastic impulsive differential
equations under Dirichlet boundary value conditions. By us
We use the geometric framework describing gauge theories to enrich our
understanding of the principle of maximum entropy, a variational method
appearing in statistical inference and the analysis of st
We present a simple gradient-descent-based algorithm that can be used as an optimization subroutine in combination with imaginary time evolution, which by construction guarantees a monotonic decrease of the energy in each iteration step.
Using this result we find a closed expression for the energy functional and its gradientof a general fermionic quantum many-body hamiltonian.