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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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4897145193 · May 202619922001200920182026
48 results for nodule characterization

NoduleX predicts lung nodule malignancy with high accuracy using CT scans.

problem Challenges in accurately predicting lung nodule malignancy from CT scans.
method Deep learning convolutional neural networks (CNN) trained on a large dataset of lung nodules.
result NoduleX achieves an AUC of ~0.99 for nodule malignancy classification, comparable to radiologists.

A novel approach for 3D lung nodule segmentation using adaptive ROI and multi-view residual learning.

problem Inaccurate nodule segmentation due to fixed ROI and redundant structures.
method Two-stage approach: 2D ROI patch-wise investigation with adaptive ROI strategy, followed by 2D and 3D VOI investigation with deep residual U-Net.
result Significantly robust and accurate nodule segmentation compared to previous methods.

Study uses weak labels and visual attention networks to detect lung nodules in chest radiographs.

problem Automated detection of lung nodules in chest radiographs requires large amounts of manually annotated images.
method Proposes two network architectures: one using saliency maps and the other a recurrent attention model trained with reinforcement learning.
result Demonstrates promising nodule detection performance using weak labels and visual attention mechanisms.

System converts 3D lung nodule images into embeddings for retrieval.

problem Retrieving similar 3D lung nodule images for radiologist decision support.
method 3D deep learning, semantic representation, transfer learning, similarity score.
result System can measure similarity between nodule annotations and CBIR results.

Deep neural network detects lung nodules in CT scans.

problem Challenging and time-consuming manual assessment of CT images for pulmonary nodules.
method ReCTnet combines convolutional and recurrent layers to learn from CT slices.
result ReCTnet achieves 90.5% detection sensitivity with 4.5 false positives per scan.

Reduces false positives in lung nodule detection by using unlabeled data.

problem Lack of labeled data for training supervised algorithms in medical imaging.
method Uses pseudo-negative labels from unlabeled data to refine a pulmonary nodule detection network.
result False positive rate reduced from 0.4864 to 0.1266 while maintaining sensitivity.

Study uses multi-task Bayesian optimization to speed up SVM hyperparameter tuning for nodules diagnosis.

problem Redundant and time-consuming hyperparameter tuning for SVM classifiers in medical imaging.
method Employed multi-task Bayesian optimization to accelerate hyperparameter search.
result Multi-task Bayesian optimization significantly accelerates hyperparameter search.

Propagating uncertainty improves deep learning model performance.

problem Improving computer-aided detection of pulmonary nodules.
method Multi-stage Bayesian CNN architecture with uncertainty propagation.
result Improves overall performance in terms of accuracy and model confidence.

End-to-end CAD system for thyroid nodule classification using multimodal data and expert guidance.

problem Improving accuracy in thyroid nodule classification for clinicians.
method Knowledge-driven DenseNet framework using multimodal ultrasound data and expert cues.
result The proposed system achieves relevant performances in thyroid nodule classification.

Reinforcement learning improves self training for medical image segmentation.

problem Lack of labeled data in medical imaging.
method Integrating reinforcement learning into self training for complex segmentation networks.
result Improved segmentation performance with less labeled data.

New method uses probabilistic independence to discover disease signatures from medical records.

problem Insufficiently precise diagnosis of clinical disease leading to treatment failures.
method Unsupervised machine learning using probabilistic independence to disentangle disease patterns.
result Inferred 2000 clinical disease signatures from medical records, improving cancer prediction.

We correct for sampling bias in training models to improve real-world performance.

problem Sampling bias causes discrepancies between lab and real-world model performance.
method Bayesian risk minimization and derived bias-corrected loss functions.
result Our approach integrates seamlessly into current learning paradigms and improves model performance.

Method learns feature maps from deep CNN layers for weakly supervised chest pathology localization.

problem Localization of chest pathologies in X-ray images is challenging due to varying sizes and appearances.
method Class-aware deep multiscale feature learning using intermediate feature maps from CNN layers.
result Improves localization performance of small pathologies like nodules and masses.

GAN normalizes CT scans for consistent radiomic feature values.

problem Variations in dose levels and slice thickness affect radiomic features sensitivity.
method Used a 3D generative adversarial network (GAN) to normalize reduced dose, thick slice images to normal dose, thinner slice images.
result GAN-based approach led to significantly smaller error in radiomic features.

Proposes ConRad model for lung cancer classification using radiomics and interpretable machine learning.

problem Lack of interpretability in deep neural networks for cancer diagnosis.
method Integration of radiomics and DNN-predicted biomarkers in interpretable classifiers (ConRad).
result ConRad models outperform CNNs in five-fold cross-validation.

We extend Howie's characterization of alternating knots to give a topological characterization of toroidally alternating knots, which were defined by Adams. We provide necessary and sufficient conditions for a knot to be toroidally alternating. We also give a topological characterization of almost-alternating knots whi…

2016-08-01abs ↗pdf ↗

The study provides homological characterizations for QQ-manifolds and l2l_2-manifolds.

problem Density of maps in characterizing QQ-manifolds and l2l_2-manifolds.
method Investigates weakening the density of ZnZ_n-maps and ZZ-maps to homological maps.
result Obtains homological characterizations for QQ-manifolds and l2l_2-manifolds.

The paper characterizes Alexander quandles of finite groups.

problem Characterizing Alexander quandles of finite groups.
method Using group theory and automorphism groups, the paper provides characterizations of Alexander quandles.
result Generalized Alexander quandles of finite groups are characterized in terms of automorphism groups and underlying groups.

No single parameter characterizes the learnability of probability distributions.

problem Finding a parameter to characterize the learnability of probability distributions.
method Analyzing various notions of learnability and showing impossibility results.
result No such parameter exists for characterizing learnability of probability distributions.

Study characterizes geodesic ray transform on surfaces, isolating and separating sub-ranges.

problem Characterizing the range of the attenuated geodesic ray transform on surfaces.
method Isolating and separating sub-ranges of sums of functions and one-forms, deriving new inversion formulas.
result Range characterizations and new inversion formulas for geodesic ray transform.

We establish a characterization of adequate knots in terms of the degree of their colored Jones polynomial. We show that, assuming the Strong Slope conjecture, our characterization can be reformulated in terms of "Jones slopes" of knots and the essential surfaces that realize the slopes .For alternating knots the refor…

2016-01-13abs ↗pdf ↗

In this paper, we give some characterizations for spacelike helices in Minkowski space-time. We find the differential equations characterizing the spacelike helices and also give the integral characterizations for these curves in Minkowski space-time.

2010-06-03abs ↗pdf ↗

We review several results related to the characterization of polyhedra in hyperbolic 3-space. In particular we present Rivin's theorem that gives a characterization of compact convex hyperbolic polyhedra, and Hodgson's proof of the Adreev's theorem. We also review the analogous characterization of ideal polyhedra, and …

2010-06-23abs ↗pdf ↗