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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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3517021,0521,403 · Jun 202019922001200920182026
48 results for pixel-level modeling

New method uses image-level and pixel-level annotations for brain tumor segmentation.

problem Challenges in obtaining pixel-level annotations for brain tumor segmentation.
method Proposes a learning-based framework that combines both pixel- and image-level annotations.
result Method's performance in segmentation quality is competitive with traditional fully-supervised approach.

RTNet uses both deep and pixel-level features for partial domain adaptation.

problem Selecting relevant source samples for knowledge transfer in partial domain adaptation.
method Reinforced Transfer Network (RTNet) with a reinforced data selector (RDS) and domain adaptation model.
result RTNet achieves state-of-the-art performance on benchmark datasets.

New method reduces false positives in weakly supervised pixel-level localization.

problem Reduces false positives in weakly supervised pixel-level localization.
method Proposes a deep learning method using conditional entropy to constrain the localizer.
result Significant improvements in image-level classification and pixel-level localization.

Proposes a probabilistic method for generating semantically-aware adversarial examples.

problem Generating adversarial examples that are difficult for humans to detect while preserving semantics.
method Embeds subjective understanding of semantics as a distribution into adversarial example generation.
result Achieves higher success rates in circumventing adversarial defense mechanisms.

Neural network classifies breast cancer lesions using global and local image features.

problem Classifying breast cancer lesions in medical images with high resolution and small regions of interest.
method Proposes a neural network that combines global saliency maps and local patches for pixel-level saliency maps.
result Achieves radiologist-level performance in screening mammography interpretation.

Cascade adversarial training improves robustness against iterative attacks.

problem Improving robustness against unknown iterative attacks.
method Cascade adversarial training, incorporating adversarial images and embedding space for low-level similarity learning.
result Enhanced robustness against iterative attacks, but decreased robustness against one-step attacks.

Topology-GS improves 3D GS for better structural and feature integrity.

problem Compromised pixel-level and feature-level integrity in 3D GS.
method Incorporates Local Persistent Voronoi Interpolation (LPVI) and PersLoss based on persistent homology.
result Topology-GS outperforms existing methods in PSNR, SSIM, and LPIPS metrics.

The paper explains deep learning models for recommendations using layer-wise relevance propagation.

problem Explainable recommendations in deep learning models.
method Layer-wise relevance propagation applied to a Deep Convolutional Neural Network.
result Demonstrates the effectiveness of the method on an Amazon products dataset.

This research shows unsupervised GANs can perform object segmentation without labels.

problem Performing object segmentation without pixel or image-level labels.
method Used large-scale unsupervised GAN models to differentiate foreground from background.
result Demonstrated high-quality saliency masks and new state-of-the-art performance.

Optimizes privacy-preserving data release with adversarial neural networks.

problem Minimizing distortion while concealing sensitive information in data release.
method Adversarial neural networks for randomized mechanisms and variational approximation of mutual information privacy.
result Achieves near-optimal tradeoffs between data distortion and privacy in experiments.

Forest tree species mapped with high accuracy using satellite data.

problem Classifying dominant tree species in Swedish forests.
method Extreme gradient boosting model with Bayesian optimization, combining Sentinel-1/2 satellite data and field observations.
result Overall accuracy of 85%, F1 score of 0.82, Matthews correlation coefficient of 0.81.

Proposes a new contrastive loss for semi-supervised medical image segmentation.

problem Lack of labeled data for medical image segmentation.
method Uses pseudo-labels and a local contrastive loss to learn good local representations.
result Achieved high segmentation performance on public cardiac and prostate datasets.

VADD enhances discrete diffusion models by capturing inter-dimensional correlations, improving sample quality.

problem Limited modeling of inter-dimensional dependencies in MDMs degrades performance with few denoising steps.
method Introduces an auxiliary recognition model for latent variable modeling, enabling stable training via variational lower bounds maximization and amortized inference.
result VADD consistently outperforms MDM baselines in sample quality with few denoising steps.

PixelSNAIL improves autoregressive models for high-dimensional data like images.

problem Improving autoregressive models for high-dimensional data like images.
method Combines causal convolutions with self-attention to model long-range dependencies.
result Achieves state-of-the-art log-likelihood results on CIFAR-10 and ImageNet.

Paper presents a method for satellite imagery classification using texture features.

problem Object identification in urban areas using satellite imagery.
method Pixel-level study with various features (correlation, homogeneity, energy, contrast). Supervised classification using SVM and Naive Bayes.
result Naive Bayes outperforms SVM with an overall accuracy of 76%.

Simplified masked diffusion models improve discrete data generation.

problem Complex model formulations and unclear relationships hinder discrete data generative modeling.
method Developed a simple and general framework for masked diffusion models.
result Models trained on OpenWebText surpass prior diffusion language models and outperform autoregressive models.

DMRL improves UDA by mixing source and target samples and enriching latent space structures.

problem Lack of class-aware information and insufficient samples for domain-invariant feature extraction.
method Dual Mixup Regularized Learning (DMRL) that conducts category and domain mixup regularizations.
result DMRL achieves state-of-the-art performance on domain adaptation benchmarks.

ReDO extracts object masks from images without annotations.

problem Solving object segmentation with supervised learning requires large datasets and pixel-level annotations.
method ReDO uses an adversarial architecture where a generator redraws objects in images without annotations.
result ReDO successfully extracts high-quality object masks from various datasets.

Fawkes protects images from unauthorized facial recognition models.

problem Unauthorized training of facial recognition models poses privacy risks.
method Fawkes adds imperceptible pixel-level changes (cloaks) to images before release.
result Fawkes can protect images from misidentification by 95% and 80% even when clean images are leaked.

Semantic boundary and edge detection aims at simultaneously detecting object edge pixels in images and assigning class labels to them. Systematic training of predictors for this task requires the labeling of edges in images which is a particularly tedious task. We propose a novel strategy for solving this task, when pi…

2016-06-29abs ↗pdf ↗

NullSpaceNet maps inputs to a joint-nullspace for clearer class separability.

problem Class separability and interpretability in image classification.
method NullSpaceNet maps inputs to a joint-nullspace, collapsing same-class inputs and separating different classes.
result NullSpaceNet achieves superior performance with reduced parameters and time.

Weakly supervised learning for histopathology disease localization.

problem Locating abnormal cells or single cells in histopathology slides.
method Pre-trained deep convolutional networks, feature embedding, top instances and negative evidence.
result Comparable performance to strong annotations on lymph node metastases detection challenge.

COMPASS improves uncertainty quantification for medical segmentation metrics.

problem Uncertainty quantification for medical segmentation metrics is crucial for clinical decision-making.
method COMPASS leverages deep neural network inductive biases to generate efficient, metric-based conformal prediction intervals.
result COMPASS produces significantly tighter intervals than traditional conformal prediction methods on medical image segmentation tasks.

ZegOT uses optimal transport to zero-shot segment images with text prompts.

problem Zero-shot semantic segmentation with limited image-text alignment knowledge.
method ZegOT uses optimal transport to match multiple text prompts with frozen image embeddings.
result ZegOT achieves state-of-the-art performance in zero-shot semantic segmentation.

Deep object detection improves mitotic nucleus detection in breast cancer biopsies.

problem Challenges in automated mitotic nucleus detection in breast cancer histopathological images.
method Adapted Mask R-CNN for deep object detection, initially selects candidate regions with maximum recall, refines them with multi-object loss function.
result Improved discrimination ability (F-score of 0.86) and significant precision (0.86) for mitotic nuclei compared to two-stage models.

OTSeg uses multi-prompt Sinkhorn attention to improve zero-shot semantic segmentation.

problem Leveraging pre-trained CLIP knowledge to align text embeddings with pixel embeddings.
method OTSeg employs Multi-Prompts Sinkhorn (MPS) and Multi-Prompts Sinkhorn Attention (MPSA) to enhance semantic feature matching.
result OTSeg achieves state-of-the-art performance in zero-shot semantic segmentation tasks.

New DL algorithm detects critical chest X-ray findings without manual annotations.

problem Lack of explainability and manual annotation costs for DL models in medical imaging.
method Multi-instance learning approach to jointly classify and localize critical findings in CXR.
result Competitive classification results on three CXR datasets.

AKM2^2D framework speeds up anomaly detection in point-based sensing.

problem Efficient anomaly detection in point-based sensing systems.
method Adaptive Kernelized Maximum-Minimum Distance (AKM2^2D) framework for intelligent sequential sampling.
result Balances exploration and exploitation for accurate anomaly quantification.

Paper proposes MDAT to stabilize domain alignment in label-scarce settings.

problem Stable and comprehensive domain alignment in label-scarce settings.
method Max-margin Domain-Adversarial Training (MDAT) with Adversarial Reconstruction Network (ARN).
result MDAT stabilizes gradient reversing and achieves strong robustness to hyper-parameters.

HashReward improves imitation learning in high-dimensional environments by balancing reward generation and dimensionality reduction.

problem Making policies generalize well in high-dimensional state-action spaces, especially in game playing with raw pixel inputs.
method HashReward uses supervised hashing to balance reward generation and dimensionality reduction.
result HashReward outperforms state-of-the-art methods in high-dimensional environments.

This paper measures the information quantity in paintings using entropy.

problem Traditional art pricing models lack variables capturing painting content.
method Extends Shannon entropy to measure painting information using pixel-level variances of line, color, value, shape/form, and space.
result Variance measurements significantly explain sales prices, improving traditional models.