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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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285583110 · Oct 201919922001200920182026
48 results for spatial GAN

Convolutional GANs favor low spatial frequencies, affecting fine detail generation.

problem Understanding GANs' limitations in high spatial frequency learning.
method Proposed method to manipulate GANs' bias against high spatial frequencies.
result Convolutional GANs have a bias against learning high spatial frequencies.

Combines GANs and EVT for better modeling of spatial climate extremes.

problem Modeling dependencies between climate extremes, especially in high-dimensional spaces.
method Generative Adversarial Networks (GANs) combined with Extreme Value Theory (EVT).
result evtGAN outperforms classical GANs and statistical approaches in modeling spatial extremes.

Hybrid VAE-GAN model generates sequential data with spatial correlations.

problem Generating sequences with spatial correlations between frames.
method Semi-recurrent CNNs in encoder, generator, and discriminator; sampling subsequent frames from latent distributions.
result Maintains dependencies between frames in generated sequences.

COCO-GAN generates images by parts using spatial coordinates, achieving state-of-the-art quality.

problem Generating full images from partial observations due to computational constraints.
method COCO-GAN uses conditional coordination to generate images by parts based on spatial coordinates, with a generator and discriminator learning to justify realism.
result COCO-GAN produces state-of-the-art-quality full images during inference, enabling novel applications like beyond-boundary generation and panorama generation.

Researchers develop tests to assess quality of GAN-generated images.

problem Lack of objective means to evaluate domain-relevant quality of GAN-generated images.
method Designed stochastic context models (SCMs) and statistical classifiers to detect high-order spatial arrangements in GAN-generated images.
result GANs can generate images that appear accurate visually but lack specific high-order spatial arrangements.

Physics-informed GANs estimate elastic moduli from mechanical tests.

problem Estimating spatially-varying elastic moduli from measured deformations.
method Physics-informed Generative Adversarial Networks (PI-GANs) with PDE constraints.
result Generated stiffness samples match true distribution statistics.

DDPMs can reproduce medical image context, showing interpolation between samples.

problem Understanding DDPMs' ability to learn spatial context in medical imaging.
method Used stochastic context models (SCMs) to produce training data and assess DDPMs' performance.
result DDPMs can generate contextually correct images, interpolating between samples.

A new method uses GANs for robust optimization under uncertain data.

problem Optimizing supply chains under demand uncertainty with ambiguous distributions.
method Generative adversarial networks (GANs) for data-driven distributionally robust chance constrained programming.
result The approach effectively handles uncertain data distributions and improves supply chain optimization.

Proposes GANs using Capsule Networks for faster image synthesis.

problem Faster image synthesis with fewer training samples and epochs.
method Capsule Networks for image synthesis using GAN architectures.
result Learn data manifold faster and synthesize visually accurate images.

Y-GAN uses multi-camera data to estimate depth maps without expensive hardware.

problem Depth perception for autonomous systems requires accurate 3D spatial information.
method Proposes Y-GAN, a deep convolutional generative adversarial network.
result Y-GAN estimates depth maps from multi-camera stereo images without ground truth data.

New model predicts urban sprawl sensitivity from remote sensing data.

problem Forecasting urban sprawl sensitivity to economic factors.
method Physics-constrained conditional GANs for image-to-image translation.
result Model accurately predicts urban sprawl sensitivity without detailed data.

Physics-informed GANs model subsurface flow at the Hanford Site.

problem Uncertainty quantification for subsurface flow modeling at the Hanford Site.
method Physics-informed GANs, hierarchical domain parallelism, multiple GPUs, efficient communication.
result Highly scalable physics-informed GANs model subsurface flow on Summit supercomputer.

MAD-GAN detects anomalies in multivariate time series data using GANs.

problem Complex multivariate time series data requires better anomaly detection methods.
method Unsupervised anomaly detection using Generative Adversarial Networks (GANs).
result MAD-GAN effectively detects anomalies in real-world CPS systems.

Seismic inversion method uses GAN to improve efficiency and accuracy.

problem Difficulty in combining geological knowledge with seismic data and assessing uncertainty.
method Generative Adversarial Network (GAN) for seismic inversion.
result GAN-generated models conform to observation data with low uncertainty.

Generative adversarial networks generate realistic, time-evolving high-resolution atmospheric fields.

problem Improving spatial resolution of low-resolution atmospheric images.
method Recurrent, stochastic super-resolution GAN for generating ensembles of time-evolving high-resolution atmospheric fields.
result The GAN produces realistic, temporally consistent super-resolution sequences for radar-measured precipitation and cloud optical thickness.

SAGAN improves image generation by leveraging attention across feature locations.

problem Traditional GANs generate details only from local feature maps, limiting image quality.
method SAGAN uses self-attention to model long-range dependencies and spectral normalization for better training.
result SAGAN achieves state-of-the-art results, boosting Inception score and reducing Frechet Inception distance.

Unified CLIP space manipulations improve GAN adaptation with a single target image.

problem Overfitting or underfitting in fine-tuning a pre-trained generator with a single target image.
method Two-step training strategy: latent optimization in CLIP space followed by generator fine-tuning with CLIP space consistency loss.
result Our model generates diverse outputs with the target texture and outperforms baseline models.

SXL embeds spatial autocorrelation into neural networks for better geographic data learning.

problem Difficulties in learning spatial effects for neural networks in geographic data.
method SXL uses auxiliary tasks and autoregressive embeddings to learn spatial autocorrelation.
result SXL improves neural network training in unsupervised and supervised learning tasks.

Generative deep learning improves precipitation forecasts by adding resolution.

problem Inaccurate and unreliable precipitation forecasts due to unresolved processes.
method Applying GANs to super-resolve low-resolution weather model data using radar measurements.
result GANs and VAE-GANs produce high-resolution precipitation maps with better statistical properties than existing methods.

Generative model for high-resolution video generation.

problem Challenges in generating high-resolution videos due to memory and training stability limitations.
method Progressive growing of sliced Wasserstein GANs (SWGAN) for incremental spatiotemporal information learning.
result Generated photorealistic face videos of 256x256x32 resolution with an inception score of 14.57.

Wasserstein GANs with Gradient Penalty compute a different optimal transport problem called congested transport.

problem Training generative models to produce high-quality synthetic data.
method Wasserstein GANs with Gradient Penalty (WGAN-GP) approach to calculate the Wasserstein 1 distance.
result WGAN-GP computes the minimum of the congested transport problem, not the Wasserstein 1 distance.

Generative model calibrates 3D battery cathode morphologies from 2D images.

problem Calibrate 3D morphologies of all-solid-state battery cathodes from 2D microscopy images.
method Combining GANs with excursion sets of Gaussian random fields.
result Calibrated digital twins enable systematic exploration of morphological scenarios.

Physics-informed semantic inpainting improves geostatistical modeling by incorporating indirect measurements.

problem Inferring heterogeneous geological fields from limited measurements and prior spatial statistics.
method Proposes a physics-informed semantic inpainting framework using WGAN-GP to incorporate both direct and indirect measurements.
result The method satisfies physical conservation laws and enhances inpainting performance compared to using only direct measurements.

PHom-GeM uses topological features to assess generative models.

problem Generative models produce chaotic distributions during training.
method Persistent Homology for Generative Models (PHom-GeM) minimizes an objective function between true and reconstructed distributions.
result PHom-GeM is a topological distance measure for generative models.

DSRGAN learns independent structure and rendering without tuple supervision.

problem Learning disentangled representation for natural image generation without tuple supervision.
method Introducing an auxiliary domain with a common underlying-structure space, and designing a parallel generative network with a common Progressive Rendering Architecture.
result DSRGAN significantly outperforms state-of-the-art methods in disentanglability.

Survey of GANs and autoencoders, addressing mode collapse and likelihood issues.

problem Addressing mode collapse and likelihood issues in GANs and autoencoders.
method Explains various GAN and autoencoder variants, their applications, and methods to resolve issues.
result Various methods to resolve mode collapse and improve likelihood in GANs and autoencoders.

TemperatureGAN generates hourly atmospheric temperature data with high fidelity.

problem Generating accurate hourly atmospheric temperature data for climate risk assessment.
method Generative Adversarial Network (GAN) conditioned on months, locations, and time periods.
result TemperatureGAN produces high-fidelity hourly atmospheric temperature data with good spatial and temporal consistency.

Unbalanced GANs stabilize GAN training by pre-training the generator with VAE.

problem Stable training of GANs to avoid mode collapses and improve image quality.
method Pre-train GAN generator with VAE, balance generator and discriminator training, prevent discriminator's early convergence.
result Unbalanced GANs reduce mode collapses and outperform ordinary GANs in stability, convergence, and image quality.