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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,742 papers · 148 categories

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306191121 · May 202619922001200920172026
48 results for spectral quantization

New method preserves spectral clustering performance under aggressive sparsification and quantization.

problem Maintaining spectral clustering performance with sparse and quantized data.
method Random matrix theory applied to eigenspectrum changes under sparsification and quantization.
result Spectral clustering performance is preserved even with aggressive sparsification and quantization.

The paper proves spectral convergence for a specific type of geometric quantization.

problem Spectral convergence of \overline{\partial}-Laplacians on toric symplectic manifolds.
method Study of a family of compatible complex structures converging to the large complex structure limit.
result Spectral convergence of \overline{\partial}-Laplacians acting on LkL^k.

Study quantization effects on high-dimensional linear regression learning.

problem Understanding quantization's impact on learning high-dimensional linear regression models.
method Analyzes stochastic gradient descent for high-dimensional linear regression under various quantization targets.
result Establishes precise bounds on excess risk for different quantization schemes.

Smooth approximations of Kähler-Ricci solitons found using quantized metrics and Futaki invariants.

problem Finding smooth approximations of Kähler-Ricci solitons on Fano manifolds.
method Using semiclassical estimates and quantized Futaki invariants to extend a strategy from Donaldson and Tian-Zhu.
result Smooth approximations of Kähler-Ricci solitons can be found as quantized metrics.

Let MM be an arbitrary complex manifold and let LL be a Hermitian holomorphic line bundle over MM. We introduce the Berezin-Toeplitz quantization of the open set of MM where the curvature on LL is non-degenerate. The quantum spaces are the spectral spaces corresponding to [0,kN][0,k^{-N}] (N>1N>1 fixed), of the Kodaira…

2014-11-24abs ↗pdf ↗

S2D selectively decays large singular values to improve quantization of neural activations.

problem Large activation outliers in transformer models cause accuracy drops during quantization.
method Selective Spectral Decay (S2DS^2D) that surgically regularizes only the largest singular values.
result Significantly reduces activation outliers and produces well-conditioned representations.

The paper analyzes how quantization affects the Fisher Information Matrix's dominant eigenvalue.

problem The impact of quantization on the Fisher Information Matrix's dominant eigenvalue.
method The study examines spectral perturbation of the empirical Fisher Information Matrix under in-distribution input and quantized parameter perturbations.
result A bound on the eigenvalue under quantization noise, showing it strictly exceeds the unperturbed value at leading order.

Low-precision streaming PCA estimates the leading eigenvector with limited precision.

problem Estimating the leading eigenvector in a streaming setting with limited precision.
method Oja's algorithm with linear and nonlinear stochastic quantization.
result A batched version of the quantized variants achieves the lower bound on quantization error up to logarithmic factors.

A membrane technique, in which the symplectic and Ricci forms are integrated over surfaces in a complexification of the phase space, as well a ``creation" connection with zero curvature over lagrangian submanifolds, is used to obtain a unified quantization including a noncommutative algebra of functions, its representa…

1995-08-09abs ↗pdf ↗

Study of 2d gauged linear sigma models to derive difference equations and spectral data.

problem Understanding monopole solutions and their spectral data in 2d gauged models.
method Analyzing ground states and cohomology of supercharges to derive difference modules and equations.
result Derived novel difference equations for brane amplitudes and hemisphere partition functions.

The study quantizes ancient flows in cylinders, revealing their asymptotic behavior.

problem Analyzing ancient mean curvature flows with cylindrical tangent profiles.
method Proved asymptotic behavior of cylindrical profile functions using spectral quantization.
result Asymptotic behavior of cylindrical profile functions quantized to eigenvalues 0 or -sqrt(2(n-k))/4.

Power spectral density (PSD) maps providing the distribution of RF power across space and frequency are constructed using power measurements collected by a network of low-cost sensors. By introducing linear compression and quantization to a small number of bits, sensor measurements can be communicated to the fusion cen…

2016-06-07abs ↗pdf ↗

Motivated by the construction of spectral manifolds in noncommutative geometry, we introduce a higher degree Heisenberg commutation relation involving the Dirac operator and the Feynman slash of scalar fields. This commutation relation appears in two versions, one sided and two sided. It implies the quantization of the…

2014-11-04abs ↗pdf ↗

This is the introduction and bibliography for lecture notes of a course given at the Summer School on Noncommutative Geometry and Applications, sponsored by the European Mathematical Society, at Monsaraz and Lisboa, Portugal, September 1-10, 1997. In the published version, an epilogue of recent developments and many ne…

1997-09-30abs ↗pdf ↗

In this work, we consider the use of model-driven deep learning techniques for massive multiple-input multiple-output (MIMO) detection. Compared with conventional MIMO systems, massive MIMO promises improved spectral efficiency, coverage and range. Unfortunately, these benefits are coming at the cost of significantly i…

2019-06-10abs ↗pdf ↗

Proposes a new gauge theory for fuzzy geometries using finite-dimensional algebras.

problem Modeling fuzzy geometries in noncommutative geometry.
method Introduces a Yang-Mills-Higgs matrix model based on gauge matrix spectral triples.
result States Yang-Mills-Higgs theory as an explicit random multimatrix model.

Quantum stochastic flow computes heat kernel traces for Ricci flat manifolds.

problem Computing heat kernel traces for Ricci flat manifolds.
method Quantum stochastic differential equation (qsde) on Fock space over L2L^2 differential 1-forms, adapted flow construction.
result Trace of the connection Laplacian heat kernel can be computed over any compact Ricci-flat Riemannian manifold.

New stable homotopy refinement of quantum annular Khovanov homology.

problem Quantum topological Hochschild homology and annular Khovanov spectra.
method Introducing quantum topological Hochschild homology (qTHH) and constructing a new stable homotopy refinement of quantum annular Khovanov homology.
result The new stable homotopy refinement agrees with qTHH of spectral Chen-Khovanov tangle bimodules and recovers earlier work.

In a former paper we proposed a model for the quantization of gravity by working in a bundle EE where we realized the Hamilton constraint as the Wheeler-DeWitt equation. However, the corresponding operator only acts in the fibers and not in the base space. Therefore, we now discard the Wheeler-DeWitt equation and expr…

2015-01-05abs ↗pdf ↗

We propose a method for determining the spins of BPS states supported on line defects in 4d N=2\mathcal{N}=2 theories of class S. Via the 2d-4d correspondence, this translates to the construction of quantum holonomies on a punctured Riemann surface C\mathcal{C}. Our approach combines the technology of spectral networks…

2016-03-16abs ↗pdf ↗

Just as semantic hashing can accelerate information retrieval, binary valued embeddings can significantly reduce latency in the retrieval of graphical data. We introduce a simple but effective model for learning such binary vectors for nodes in a graph. By imagining the embeddings as independent coin flips of varying b…

2018-03-25abs ↗pdf ↗

The paper classifies quantizable functions and explores symmetry in quantization methods.

problem Classifying quantizable functions and understanding symmetry in quantization methods.
method Deformation quantization and geometric quantization methods are compared and classified.
result Formal quantizable functions are of a specific form and relate to Hamiltonian Killing vector fields.

This paper introduces a differentiable, scalable quantization method for neural networks.

problem Previous quantization methods lacked differentiability and scalability.
method The approach is differentiable and scalable, using bit-shifting and logarithmic quantization.
result The method achieves comparable accuracy to state-of-the-art approaches with less training time and lower inference cost.

StatQAT optimizes quantization for deep networks, reducing computational cost and memory usage.

problem Optimal quantization parameters selection for deep neural networks with diverse data distributions.
method Statistical error analysis framework for uniform and floating-point quantization, iterative and analytic quantizers designed for arbitrary and Gaussian-like distributions.
result Improved accuracy and stability in training low-precision neural networks.

This study optimizes quantized neural networks by considering model architecture and quantization types.

problem Optimizing quantized neural networks for low-power, high-throughput applications.
method Holistic approach including training methods and quantization-friendly architecture design.
result Deeper models are more sensitive to activation quantization, while wider models improve resilience to both weight and activation quantization.

HMQ improves quantization for edge devices with mixed precision.

problem Efficient quantization for edge devices with uniform, power-of-two thresholds.
method Introduces HMQ, a mixed precision quantization block that repurposes Gumbel-Softmax for searching over quantization schemes.
result Achieves competitive and state-of-the-art results on ImageNet despite restrictions.