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20 results for “Spectral gap”

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math.PRcs.DSmath.COTheoreticalRecentJun 21, 2026

Spectral Gap for the Binary Fixed-Margin Swap Chain

Weibo Fu, Qian Qin, Guanyang Wang

This paper proves an inverse-polynomial spectral-gap bound for the lazy swap chain on binary matrices with prescribed row and column sums, which is a standard sampler for fixed-margin null models.

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cs.SDcs.AIcs.CLRecentMay 28, 2026

COMET: Concept Space Dissection of the Modality Gap in Audio-Text Multimodal Contrastive Embeddings

Yonggang Zhu, Liting Gao, Aidong Men, Wenwu Wang

The paper introduces COMET, a novel PLS-SVD framework, to analyze the audio-text modality gap in CLAP models, showing that shared concepts are captured by a small subset of axes, and proposes a spectr…

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cs.CRcs.CCRecentJun 2, 2026

Collision Resistance of Single-Layer Neural Nets

Marco Benedetti, Andrej Bogdanov, Enrico M. Malatesta, Marc Mézard +4 more

The paper analyzes the algorithmic complexity of finding collisions in single-layer binary neural networks, establishing that the collision resistance depends critically on the activation function's t…

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cs.LGRecentJun 1, 2026

Low-Pass Flow Matching

Francesco M. Ruscio, T. Konstantin Rusch

Low-Pass Flow Matching introduces a spectral bias into the flow matching process, allowing it to better model natural data by transitioning from a standard source spectrum to a frequency-decaying bias…

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math.COcs.DMTheoreticalRecentJul 1, 2026

Annihilation, Independence, and Residue: Sharp Matching Bounds for the Annihilation Gap and a TxGraffiti Application

Ohr Kadrawi, Vadim E. Levit

This paper provides bounds on the difference between the annihilation number and independence number of a finite simple graph, and proves these bounds for various types of graphs.

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cs.DScs.DCTheoreticalRecentJul 27, 2026

Parallel Spectral Graph Sparsification via Low Diameter Decompositions

Yves Baumann, Gernot Zöcklein

A new solver-free parallel spectral sparsification algorithm for weighted graphs is presented, relying on low-diameter decompositions and independent sampling, eliminating dependence on target approxi…

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cs.CCmath.CONEWTheoreticalJul 29, 2026

Upper bounds for the monotone rank of the unique disjointness matrix

Igor S. Sergeev

The paper provides tight bounds for the OR-rank and an upper bound for the SUM-rank of the unique disjointness matrix.

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math.NAcs.LGRecentJun 1, 2026

Spectral Audit of In-Context Operator Networks

Zhiwei Gao, Liu Yang, George Em Karniadakis

The paper introduces a Jacobian-based spectral audit to evaluate neural operators, demonstrating that standard prediction error metrics fail to capture crucial local dynamical structures and operator…

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cs.DCEmpiricalRecentJul 15, 2026

DRIFT: Direct Reduced Fourier Transforms for Distributed Spectral Neural Operators

Sana Taghipour Anvari, David Kaeli

This paper introduces the Distributed Truncated Spectral Transform (DTST) for Fourier Neural Operators (FNOs), achieving significant speedups in distributed computing.

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cs.LGcs.AIRecentMay 31, 2026

What Makes a Strong Model? A Unified Spectral Analysis of Knowledge Transfer over High-dimensional Linear Regression

Wendao Wu, Fangqing Zhang, Haihan Zhang, Cong Fang

This paper develops a unified spectral analysis framework to explain how knowledge transfer (KT) works across different machine learning regimes, such as Knowledge Distillation and Weak-to-Strong gene…

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quant-phcs.DSmath.NATheoreticalRecentJul 8, 2026

Faster quantum linear system solver beyond the condition number

Alexander M. Dalzell, Jianqiang Li, Yuan Su

This paper presents two quantum algorithms for solving linear systems with normalized solution $|x angle$ to accuracy $ε$, independent of the condition number $κ$.

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quant-phcs.CCcs.DSNEWTheoreticalJul 29, 2026

The Keyl-Werner algorithm is not optimal for spectrum estimation

Angelos Pelecanos, Jack Spilecki, Ewin Tang, John Wright

An algorithm is given to estimate quantum state eigenvalues with fewer copies using a new tomography guarantee.

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math.STcs.CCcs.DSRecentMay 28, 2026

Low-degree estimation thresholds in planted hypergraphs and tensor PCA

Daniel Fu, Youngtak Sohn

The paper analyzes low-degree estimation thresholds for recovering hidden signals in planted hypergraphs and tensor PCA, establishing sharp phase transitions and providing polynomial-time recovery alg…

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cs.AIcs.DBcs.DSEmpiricalRecentJun 23, 2026

Can Aggregate Invariants Accelerate Continuous Subgraph Matching? Limits, Laws, and a Dynamic Spectral Index

Minghao Chen, Jiale Zheng

This paper investigates the use of spectral filtering for continuous subgraph matching over dynamic graphs and presents three key findings.

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cs.DSTheoreticalRecentJul 17, 2026

A Unified Theory of Sparsification

Sanjeev Khanna, Aaron Putterman, Madhu Sudan

This paper introduces a structural theorem for the sparsifiability of real-valued codes, which generalizes both combinatorial and continuous notions of sparsification.

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