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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.

169,181 papers · 148 categories

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12.5%25.0%37.5%50.0% · Oct 199319922001200920182026
48 results for relative weight analysis

Improved atomistic model predicts molecular properties using weighted skip-connections.

problem Understanding the relative importance of interactions in molecular property prediction.
method Extended SchNet architecture with weighted skip-connections to analyze molecule properties.
result Relative weighting of interaction blocks depends on molecule's chemical composition and configurational degrees of freedom.

The paper proposes new methods to accurately attribute online advertising revenue.

problem Quantifying revenue attribution to online advertising inputs.
method Relative importance method based on regression models, with dominance analysis and relative weight analysis submethods.
result New methods are more flexible and accurate in modeling revenue attribution.

Prior-weighted logistic regression has become a standard tool for calibration in speaker recognition. Logistic regression is the optimization of the expected value of the logarithmic scoring rule. We generalize this via a parametric family of proper scoring rules. Our theoretical analysis shows how different members of…

2013-07-30abs ↗pdf ↗

We investigate the mm-relative entropy, which stems from the Bregman divergence, on weighted Riemannian and Finsler manifolds. We prove that the displacement KK-convexity of the mm-relative entropy is equivalent to the combination of the nonnegativity of the weighted Ricci curvature and the KK-convexity of the weig…

2010-05-08abs ↗pdf ↗

New method finds profitable investment opportunities by considering additional financial variables.

problem Finding trading strategies that outperform the market with high probability.
method Generalizing functionally generated portfolios to include continuous-path semimartingales.
result Inclusion of additional processes can reduce time horizons for profitable arbitrage opportunities.

Sketches linear classifiers using Weight-Median Sketch for efficient data stream analysis.

problem Efficiently learning and analyzing data streams with limited memory.
method Introduces Weight-Median Sketch for compressed linear classifier learning over data streams.
result Memory-limited execution of various analyses over streams, including feature selection and mutual information estimation.

A new model clusters network nodes based on relative edge weights.

problem Clustering networks ignores node capacities, leading to biased results.
method Proposes a Dirichlet stochastic block model for composition-weighted networks.
result Validated on simulated and real-world networks, showing improved clustering accuracy.

This paper gives an exposition of relative weight filtrations on completions of mapping class groups associated to a stable degeneration of marked genus g curves. These relative weight filtrations have been constructed using Galois theory (with Matsumoto) and Hodge theory (with Pearlstein and Terasoma). It is shown tha…

2008-02-06abs ↗pdf ↗

We introduce a class of generalized relative entropies (inspired by the Bregman divergence in information theory) on the Wasserstein space over a weighted Riemannian or Finsler manifold. We prove that the convexity of all the entropies in this class is equivalent to the combination of the nonnegative weighted Ricci cur…

2011-12-23abs ↗pdf ↗

We develop a relative version of Kostant's harmonic theory and use this to prove a relative version of Kostant's theorem on Lie algebra (co)homology. These are associated to two nested parabolic subalgebras in a semisimple Lie algebra. We show how relative homology groups can be used to realize representations with low…

2015-10-12abs ↗pdf ↗

Deep Convolutional Neural Networks (CNNs) are more powerful than Deep Neural Networks (DNN), as they are able to better reduce spectral variation in the input signal. This has also been confirmed experimentally, with CNNs showing improvements in word error rate (WER) between 4-12% relative compared to DNNs across a var…

2013-09-05abs ↗pdf ↗

Researchers classify invariant operators on weighted densities.

problem Classifying invariant differential operators on weighted densities.
method Investigated the aff(n1)\mathfrak{aff}(n|1)-module structure and invariant binary differential operators.
result Computed the first aff(n1)\mathfrak{aff}(n|1)-relative differential cohomology.

Under the assumption of asymptotic relative Chow-stability for polarized algebraic manifolds (M,L)(M, L), a series of weighted balanced metrics ωmω_m, m1m \gg 1, called polybalanced metrics, are obtained from complete linear systems Lm|L^m| on MM. Then the asymptotic behavior of the weights as mm \to \infty will be stud…

2011-03-30abs ↗pdf ↗

Automates feature selection and weighting in molecular systems.

problem Optimal feature selection and alignment in molecular systems.
method Differentiable Information Imbalance (DII) method for automated feature ranking and scaling.
result Automated feature selection and scaling that preserves information content and interpretability.

Paper develops Lie theory for Rota-Baxter operators on Lie algebras and groups.

problem Cohomology of relative Rota-Baxter operators on Lie algebras and groups.
method Cohomology construction, infinitesimal deformations study, differentiation and integration of Rota-Baxter operators.
result Integration of Rota-Baxter operators on Lie groups and Lie algebras.

Paper proposes a fast stochastic algorithm for neural network quantization with error bounds.

problem Error analysis for quantized neural networks with non-convex loss functions and nonlinear activations.
method Greedy path-following mechanism combined with stochastic quantizer.
result Established full-network error bounds for quantized neural networks.

Proposes a multi-objective Q-network for dynamic weights in deep RL.

problem Balancing multiple conflicting objectives that change over time.
method Introduces a multi-objective Q-network conditioned on dynamic weights and Diverse Experience Replay.
result Our method outperforms adapted algorithms across various weight change scenarios and domains.

New MCMC method improves sampling from multimodal distributions.

problem Sampling from multimodal distributions is challenging for classical MCMC methods.
method Interpolating along the diffusion path, preserving mode weights and mixing properties.
result MAD-Path sampler improves global exploration and mode-weight estimation.

New method constructs relative invariants for group actions on extended manifolds.

problem Constructing relative invariants for Lie group actions.
method Developed a constructive modification of the moving frame method for extended manifolds.
result Invariantization of the multiplier yields a canonical relative invariant of weight -1.

Researchers address the generation of differential invariants for geometric structures.

problem Finite generation of differential algebra of relative differential invariants.
method Investigation of algebraic and differential properties, localization, weight analysis.
result Localization on a finite set of relative invariants makes the differential algebra finitely generated.

New model predicts stock performance in large equity markets.

problem Predicting stock performance in large equity markets over long time horizons.
method Rank-based volatility stabilized models calibrated to empirical data.
result The model exhibits relative arbitrage and statistically fits empirical features.

In this paper we study the relative Chow and KK-stability of toric manifolds in the toric sense. First, we give a criterion for relative KK-stability and instability of toric Fano manifolds in the toric sense. The reduction of relative Chow stability on toric manifolds will be investigated using the Hibert-Mumford cr…

2016-02-26abs ↗pdf ↗

Proposes a new model for clustering multiplex networks with compositional data.

problem Clustering multiplex networks with multiple types of relations and compositional data.
method Multiplex Dirichlet stochastic block model for compositional networks.
result Validated through simulation and applied to international export data.

A new simple method for representing Artin braid groups.

problem Finding a simple and intuitive representation of Artin braid groups.
method Analyzing the path of strands in a braid and encoding crossings into parameters.
result A new representation with a smaller kernel than the Burau representation.

New surface area measures defined for ball-convex bodies, leading to entropy and inequalities.

problem Defining and analyzing surface area measures for ball-convex bodies.
method Introducing LpL_p relative surface areas, proving invariance and inequalities, and using geometric interpretations.
result Established inequalities and a new notion of entropy for ball-convex bodies.

Sparse regularization reduces NLP model complexity without sacrificing accuracy.

problem Excessive parameter usage in neural models for NLP leads to high memory and runtime usage.
method Apply group lasso to rational RNNs to learn sparse, parameter-efficient models.
result Sparse rational RNNs can have significantly fewer parameters than non-sparse models without losing performance.

Study on convergence of SDEs using entropy methods.

problem Analyzing convergence of stochastic differential equations.
method Applied Lyapunov method to Fokker-Planck equation with weighted relative Fisher information.
result Exponential convergence of probability density function to invariant distribution in L1L_1 distance.

Orthogonal initialization speeds up convergence in deep linear networks.

problem The impact of initialization on convergence speed and model performance in deep neural networks.
method Analysis of orthogonal initialization in deep linear networks, proving its superiority over Gaussian initialization.
result Orthogonal initialization speeds up convergence relative to Gaussian initialization in deep networks.

Algorithm learns Sherrington-Kirkpatrick model parameters at low temperatures.

problem Learning parameters of random graphical models at low temperatures.
method Multiplicative-weight update algorithm for polynomial time learning.
result Algorithm learns SK model parameters at βlognβ\leq \sqrt{\log n}.

Post-training quantization saves resources for neural networks.

problem Implementing neural networks in resource-constrained hardware.
method Generalized post-training quantization method (GPFQ) with modifications for sparsity and error analysis.
result Error decays linearly with over-parametrization, showing minor loss of accuracy.

A method combines deep learning and G-estimation for causal mediation analysis.

problem Estimating structural mediation parameters under unmeasured confounding.
method UNIT method using TARNet for representation learning and G-estimation.
result Improved precision of structural parameter estimator through better representation learning.

Sparse learning speeds up neural network training without sacrificing accuracy.

problem Training deep neural networks efficiently while maintaining performance.
method Sparse momentum algorithm that redistributes and grows weights based on momentum magnitude.
result State-of-the-art sparse performance on various datasets with up to 5.61x faster training.

The study analyzes numerical stability in large language models using mixed-precision arithmetic.

problem Numerical stability of large language models using low-precision arithmetic.
method Developed a mixed-precision analysis of transformer inference, deriving bounds for condition numbers and forward error.
result Established that numerical stability is determined by the interplay between weight magnitude and the growth of the residual stream.

Equivalence found between certain Kahler and Sasaki metrics.

problem Understanding relationships between Kahler and Sasaki metrics.
method Establishing an equivalence between conformally Einstein-Maxwell Kahler 4-manifolds and extremal Kahler 4-manifolds with non-vanishing scalar curvature.
result New existence and non-existence results for extremal Sasaki metrics.