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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.

169,291 papers · 148 categories

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48 results for quantized extremal metrics

Griffiths extremal metrics solve complex Finsler equations and quantify Kähler geometry.

problem Interpolation of norms and complex Finsler geometry.
method Introduced Griffiths extremal Finsler metrics and solved their Dirichlet problem.
result Griffiths extremal Finsler metrics quantize solutions to a PDE in Kähler geometry.

We extend quantization-aware training to extreme model compression.

problem Maximizing model accuracy with minimal model size.
method Quantize a random subset of weights during training, allowing unbiased gradients through other weights.
result Established new state-of-the-art compromises between accuracy and model size.

A new quantization strategy reduces Transformer model size and inference time.

problem Heavy computation load and memory overhead in Transformer models for mobile devices.
method Mixed precision quantization with varying bits per word in embedding blocks.
result 11.8x smaller model size and 3.5x speed up for on-device NMT.

Improved EXACT strategy reduces GNN memory consumption and runtime.

problem Efficiently training large-scale GNNs with reduced memory usage.
method Block-wise quantization of intermediate activation maps with improved variance minimization.
result Further reduction in memory consumption (>15%) and runtime speedup (5%) with similar performance trade-offs.

BiTAT improves neural network quantization for edge devices by focusing on weight dependencies and disentangling them.

problem Performance degradation of compact neural networks under extreme quantization.
method Task-dependent Aggregated Transformation (BiTAT) method that orthonormalizes weights and progressively quantizes them.
result BiTAT effectively preserves model performance on ImageNet and CIFAR-100 with compact backbones.

Enhances LLM quantization with MDBF, improving perplexity and accuracy.

problem Limited performance of Double Binary Factorization in extreme quantization.
method Introduces Multi-envelope DBF, retaining sign matrices and replacing single envelope with rank-ll envelope.
result Improves perplexity and zero-shot accuracy over previous binary formats.

Two novel network quantization approaches improve deep neural network compression.

problem Efficiently compress deep neural networks for practical usage.
method Single-level network quantization (SLQ) and Multi-level network quantization (MLQ).
result Both SLQ and MLQ achieve impressive results in compressing state-of-the-art neural networks.

The Simanca metric on a blown-up plane has regular quantization properties.

problem Characterizing the quantization properties of the Simanca metric.
method Using the blow-up structure and Tian-Yau-Zelditch expansion, proving regular quantization and vanishing coefficients.
result All coefficients in the Tian-Yau-Zelditch expansion for the Simanca metric vanish, and a dense subset admits Berezin quantization.

New method trains quantized neural networks to global optimality.

problem Training optimal quantized neural networks is intractable due to combinatorial non-convex optimization.
method Convex optimization strategy using hidden convexity, semidefinite lifting, and Grothendieck's identity.
result Quantized NN problems can be solved to global optimality in polynomial-time.

Efficient hybrid networks improve AI performance at the edge.

problem Achieving AI performance at the edge with minimal energy and memory usage.
method Proposed hybrid networks combining binary and full-precision layers.
result Hybrid networks achieve close to full-precision performance with up to 21.8x memory compression.

Proposes QEP to mitigate quantization error propagation in layer-wise post-training quantization.

problem Growth of quantization errors across layers degrades performance, especially in low-bit regimes.
method Quantization Error Propagation (QEP) framework that explicitly propagates and compensates for quantization errors.
result QEP-enhanced layer-wise PTQ achieves substantially higher accuracy, especially in low-bit regimes.

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.

Quantized neural networks reduce model size and energy consumption.

problem Memory and energy constraints in mobile devices.
method Using integer or binary representations to store weights instead of 32-bit floats.
result Quantization can reduce model size and energy consumption without significantly compromising performance.

This work improves DNN weight quantization with ADMM, achieving lossless binarization and reduced search space.

problem Improving DNN model compression and accuracy with low bit quantization.
method Extending ADMM framework for DNN weight quantization with progressive multi-step approach.
result Achieved lossless and fully binarized DNNs with reduced accuracy loss.

LSQ+ improves quantization of neural nets with Swish activations, achieving state-of-the-art results.

problem Quantization of neural nets with Swish activations, especially negative activations, leads to significant performance loss.
method Introduces learnable scale and offset parameters for asymmetric quantization, and uses MSE-based initialization for quantization parameters.
result Significantly outperforms LSQ for low-bit quantization of neural nets with Swish activations, achieving up to 5.6% gain with W2A2 quantization of EfficientNet-B0.

New approach to geometric quantization for symplectic manifolds.

problem Quantization of symplectic manifolds with non-singular Lagrangian fibrations.
method Using spectral convergence of metric measure spaces, the authors develop a new geometric quantization approach.
result Spectral and quantum Hilbert space convergence results for Kähler and almost Kähler quantizations.

Paper discusses star products and Kähler metrics, linking deformation quantization and constant curvature metrics.

problem Existence of Kähler metrics with constant scalar curvature.
method Analyzes Fedosov and Berezin-Toeplitz star products, and studies K-stability conditions.
result Formulates a cohomology formula for K-stability conditions on Kähler metrics.

Sharp estimates for Bergman metrics derived from Kähler quantization.

problem Estimating Bergman metrics in Kähler quantization.
method Upper and lower bounds on the Bergman metric expressed in terms of φ\varphi.
result Optimal C1,1ˉC^{1,\bar1}-convergence for quantization of Kähler currents.

In this paper we show how Einstein metrics are naturally described using the quantization of the algebra of functions on a Kahler manifold M. In this setup one interprets M as the phase space itself, equipped with the Poisson brackets inherited from the Kahler 2-form. We compare the geometric quantization framework wit…

2007-10-08abs ↗pdf ↗

The study finds no extremal metrics for eigenvalues on compact manifolds but constructs examples for annuli.

problem Finding extremal metrics for eigenvalues on compact manifolds.
method Construction of conformally extremal metrics in annuli and analysis of non-existence.
result Construction of conformally extremal metrics in annuli and characterization of these metrics.

We provide an algebraic framework for quantization of Hermitian metrics that are solutions of the Hitchin equation for Higgs bundles over a projective manifold. Using Geometric Invariant Theory, we introduce a notion of balanced metrics in this context. We show that balanced metrics converge at the quantum limit toward…

2016-01-19abs ↗pdf ↗

New Kähler metrics generalize Calabi's and relate to Fano manifolds.

problem Existence of extremal Kähler metrics on Fano manifolds.
method Introducing σσ-extremal Kähler metrics and relating them to multiplier Hermitian-Einstein metrics.
result Existence of σσ-extremal Kähler metrics implies existence of multiplier Hermitian-Einstein metrics on Fano manifolds.

The paper classifies rotationally symmetric extremal Kähler metrics on complex manifolds.

problem Classifying extremal Kähler metrics on complex manifolds.
method Analyzing polynomial zeros in Calabi's extremal equation.
result No U(n)U(n) invariant complete extremal Kähler metrics on Cn\mathbb C^n with positive bisectional curvature.

Uniqueness of weighted extremal metrics on Kähler manifolds proven.

problem Uniqueness of weighted extremal Kähler metrics on compact Kähler manifolds.
method Proof of uniqueness using modified Mabuchi energy and weighted K-semistability.
result Uniqueness of weighted extremal Kähler metrics up to automorphisms.

DFRot improves LLMs by reducing outlier and massive activation effects.

problem Reducing outlier and massive activation effects in rotated LLMs.
method Weighted loss function and orthogonal Procrustes transforms for rotation matrix refinement.
result DFRot achieves dual free (Outlier-Free and Massive Activation-Free) with significant improvements in perplexity.

The paper explores clustering methods using Bregman divergences.

problem Developing efficient clustering algorithms for complex data.
method Investigates fixed rate quantization and Voronoi diagrams in Riemannian metric spaces induced by separable Bregman divergences.
result Experimental results show improved performance of clustering algorithms using these metrics.

We provide a new proof of a result of X.X.Chen and G.Tian : for a polarized extremal Kähler manifold, an extremal metric attains the minimum of the modified K-energy. The proof uses an idea of C.Li adapted to the extremal metrics using some weighted balanced metrics.

2012-11-23abs ↗pdf ↗

Paper extends Calabi's extremal metric existence to compact Kähler manifolds.

problem Existence of Calabi's extremal metric on compact Kähler manifolds.
method Adapting recent breakthroughs on constant scalar Kähler metrics to extremal case, proving properness of modified Mabuchi energy.
result Existence of extremal metric with extremal vector VV if and only if modified Mabuchi energy is proper.