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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.

169,341 papers · 148 categories

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3587161,0741,432 · Jun 202019922001200920182026
48 results for confirmation model

Confirmation bias leads to biased estimates in noisy data analysis.

problem Confirmation bias affects scientific conclusions in noisy data environments.
method Investigation of confirmation bias in Gaussian mixture models using K-means and EM algorithms.
result Estimates from algorithms are biased and resemble initial hypotheses, not the noise.

By using numerical simulation, we confirm that Takayasu--Sato--Takayasu (TST) model which leads Pareto's law satisfies the detailed balance under Gibrat's law. In the simulation, we take an exponential tent-shaped function as the growth rate distribution. We also numerically confirm the reflection law equivalent to the…

2008-09-18abs ↗pdf ↗

The paper confirms two groups of gamma-ray bursts using a new nonparametric metric.

problem Determining the number of inherent groups in gamma-ray bursts.
method A new nonparametric interpoint distance-based measure, combined with clustering methods.
result Confirms two groups of short and long gamma-ray bursts.

Paper predicts transaction confirmation time in Ethereum blockchain using machine learning.

problem Estimating transaction confirmation time in Ethereum blockchain.
method Uses machine learning, specifically Random Forest Regressor and Multilayer Perceptron, to predict transaction confirmation time.
result Proposed model shows improved accuracy in predicting transaction confirmation time compared to statistical models.

The Bayesian framework is a well-studied and successful framework for inductive reasoning, which includes hypothesis testing and confirmation, parameter estimation, sequence prediction, classification, and regression. But standard statistical guidelines for choosing the model class and prior are not always available or…

2007-09-11abs ↗pdf ↗

The paper confirms a conjecture linking link bipyramid volume and Mahler measure.

problem Link bipyramid volume and Mahler measure relationship for alternating links.
method Using isoradial graphs and spanning trees on lattices, the authors confirm the conjecture for two examples and calculate five more.
result The conjecture is confirmed for specific examples of alternating links.

The AJ conjecture, formulated by Garoufalidis, relates the A-polynomial and the colored Jones polynomial of a knot in the 3-sphere. It has been confirmed for all torus knots, some classes of two-bridge knots and pretzel knots, and most cabled knots over torus knots. The strong AJ conjecture, formulated by Sikora, relat…

2014-04-01abs ↗pdf ↗

Numerical study confirms Brennan's conjecture for a counterexample to Thurston's K=2K=2 conjecture.

problem Thurston's K=2K=2 conjecture and Brennan's conjecture in planar domains.
method Numerical analysis of a specific counterexample to Thurston's conjecture.
result The counterexample does not contradict Brennan's conjecture.

Mitigates confirmation bias in SSL by adjusting pseudo labels dynamically.

problem Confirmation bias in semi-supervised learning leads to errors in pseudo labels.
method TaMatch framework adjusts scaling ratio to debias pseudo labels and dynamically adjusts target distribution.
result TaMatch significantly outperforms existing methods in SSL tasks.

The paper confirms a conjecture about compact unitary manifolds with non-empty fixed points.

problem Bounding the dimension of compact unitary manifolds with non-empty fixed points.
method The approach involves confirming Kosniowski's conjecture for almost complex manifolds under specific weight conditions.
result The conjecture is confirmed for manifolds with specific types of weights.

Researchers confirm conjecture for complex nilmanifolds in higher dimensions.

problem Confirming the conjecture for compact Hermitian manifolds with constant holomorphic sectional curvature.
method Focused on complex nilmanifolds, proving the conjecture for these specific manifolds.
result The conjecture is confirmed for complex nilmanifolds in higher dimensions.

Paper confirms Hamilton-Tian conjecture for specific Sasakian manifolds.

problem Hamilton-Tian conjecture for specific Sasakian manifolds.
method Sasaki-Ricci flow, compact transverse Fano Sasakian 5-manifolds, klt foliation singularities.
result Confirmed Hamilton-Tian conjecture for compact transverse Fano Sasakian 5-manifolds.

Proves Juhl formulas for curved Ovsienko--Redou operators, confirming conjectures.

problem Formal self-adjointness of curved Ovsienko--Redou operators and their linear analogues.
method Proves Juhl type formulas for curved Ovsienko--Redou operators and their linear analogues.
result Confirms two conjectures of Case, Lin, and Yuan on formal self-adjointness.

Synthetic learning improves neonatal brain MRI segmentation robustness.

problem Challenges in neonatal brain MRI segmentation due to image contrast and anatomical variations.
method Synthetic learning model trained on few T2-weighted volumes, then enhanced with motion artifacts and over-segmentation.
result Synthetic learning robust to image contrast and improves segmentation of both T1- and T2-weighted images.

This work explains how linear representations in large language models arise from training objectives and gradient descent.

problem Understanding the origins of linear representations in large language models.
method A latent variable model to abstract and formalize concept dynamics, combined with analysis of the softmax cross-entropy objective and gradient descent.
result Linear representations emerge when learning from data matching the latent variable model, and this simple structure suffices to yield linear representations.

Gradient descent on LSE objectives implicitly performs EM, leading to collapse without volume control.

problem Gradient collapse in autoencoders without volume control.
method Introduced a single-layer encoder with an LSE objective and InfoMax regularization for volume control.
result Gradient--responsibility identity holds exactly; LSE alone collapses; variance prevents dead components; decorrelation prevents redundancy.

Study examines how COVID-19 affected India's exchange rates and stock market.

problem Impact of COVID-19 on India's financial markets during and after lockdown.
method Secondary data analysis using VAR models across different phases of lockdown and unlock.
result Increase in confirmed cases does not significantly affect exchange rate and stock market.

The paper studies graphs minimizing Dirichlet energy with analytic boundaries, confirming a conjecture about singularities.

problem Understanding the singularities of area-minimizing currents with real analytic boundaries.
method Analyzing multi-valued graphs with real analytic interfaces that minimize Dirichlet energy.
result Dirichlet energy-minimizers with analytic boundary singularities are discrete in 2 dimensions, confirming a conjecture by B. White.

The paper confirms a conjecture about the fundamental groups of ends of certain noncompact manifolds.

problem Understanding the fundamental groups of ends of noncompact manifolds with specific curvature properties.
method Analyzing the universal cover and using the concept of visibility manifolds.
result The fundamental group of each end of a manifold is almost nilpotent if its universal cover is a visibility manifold.

Pseudo-label selection affects semi-supervised learning performance.

problem Selection of pseudo-labeled data impacts semi-supervised learning's generalization performance.
method Embedding pseudo-label selection into decision theory, deriving a novel selection criterion based on posterior predictive.
result BPLS (Bayesian pseudo-label selection) outperforms traditional methods in overfitting-prone data.

Research confirms a conjecture about complex manifolds with total Betti number three.

problem Understanding the minimal total Betti number of closed almost complex manifolds.
method Analyzing properties of almost complex manifolds and using topological results.
result The only simply connected closed complex manifold with total Betti number three is the complex projective plane.

We confirm the square-root law of market impact on Apple Inc. using a large dataset.

problem Testing the square-root law of market impact on a single U.S. large-cap equity.
method Using a full market-by-order feed, we reconstruct metaorders and calibrate impact using the square-root formula.
result The square-root law is confirmed with a prefactor of 0.34, consistent with worldwide data.

New method confirms Ricci iteration converges to Kähler-Einstein metrics.

problem Confirming the conjecture that the Ricci iteration converges to Kähler-Einstein metrics.
method Using Perelman's convergence theory for the Ricci flow, the article confirms the conjecture for the Ricci iteration.
result The Ricci iteration converges to Kähler-Einstein metrics, providing a new method of uniformization of the Riemann sphere.

The Strominger conjecture is confirmed for compact Hermitian manifolds in 2D and special higher dimensions.

problem Determining conditions for a Hermitian metric to be Kähler based on the Strominger connection's curvature.
method Analyzing the Strominger connection's holomorphic sectional curvature in compact Hermitian manifolds.
result The Strominger conjecture is confirmed in 2D and special higher dimensions.