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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.

169,051 papers · 148 categories

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48 results for stain invariant

New strategies help CNNs recognize tissue features across different stains.

problem Training deep learning models for images with multiple stains is challenging and expensive.
method Presented unsupervised training strategies that leverage one staining modality to improve performance on images with multiple stains.
result CNNs trained with these strategies outperform standard training methods on images with multiple stains.

Generative models create H&E-stained and destained prostate biopsy images.

problem Lack of H&E-stained prostate biopsy images.
method Conditional GAN for H&E staining, destaining model learning from stained to non-stained images.
result Generated images maintain structural similarity to non-stained biopsy.

A deep model learns to infer fluorescence labels from unlabeled microscopy images.

problem Challenges in obtaining high quality images of cellular structures due to complex environments and label staining limitations.
method Developed a novel deep model using global pixel transformer layers and dense blocks, incorporating multi-scale input strategy.
result Significantly outperforms state-of-the-art methods in fluorescence image prediction tasks.

Stem uses diffusion models to infer gene expression from H&E images.

problem Inference of gene expression from H&E stained images is time-consuming and expensive.
method Conditional diffusion generative model to infer gene expression.
result Stem achieves state-of-the-art performance in spatial gene expression prediction.

Study proposes deep learning techniques to diagnose and differentiate Celiac Disease and Environmental Enteropathy from biopsy images.

problem Challenging histopathologic overlap between Celiac Disease and Environmental Enteropathy in biopsy images.
method Color balancing and Random Multimodel Deep Learning (RMDL) architecture to address staining variability.
result Proposed deep learning techniques improve diagnosis accuracy of Celiac Disease and Environmental Enteropathy.

A novel approach for augmenting histopathological images by blending Gaussian-Laplacian pyramids.

problem Data imbalance and inter-patient variability in histopathological images.
method Image blending using Gaussian-Laplacian pyramids to distribute inter-patient variability.
result Promising gains in performance compared to existing data augmentation techniques.

This paper proposes synthetic augmentation for nuclei image segmentation in medical pathology.

problem Rare and time-consuming labeling of tumor nuclei images for semantic segmentation.
method Label-to-image translation to generate synthetic images.
result Synthetic augmentation improves segmentation accuracy.

Evaluates deep learning models in histopathology for robustness and classification strategies.

problem Lack of comprehensive evaluation of histopathology models beyond accuracy.
method Developed a new methodology to evaluate models on five histopathology datasets, including vision transformers and CNNs.
result Identified insights into cancer classification strategies and robustness against stain variations.

Unified framework for semi-supervised learning reduces annotation needs.

problem Sparse annotations and large amounts of unlabeled data in computational pathology.
method S5CL integrates fully-supervised, self-supervised, and semi-supervised learning through hierarchical contrastive losses.
result S5CL improves accuracy and F1-score in histopathological datasets with sparse labels.

Deep Learning model diagnoses four lymphoma categories with high accuracy.

problem Automated detection of lymphoma categories using digital pathology images.
method Convolutional neural network algorithm trained on 128 cases of lymph node images.
result Excellent diagnostic accuracy (95% image-by-image, 10% set-by-set).

CNN-based prostate cancer grading improves accuracy and efficiency.

problem Manual Gleason grading by pathologists is time-consuming and prone to errors.
method Patch-Based Image Reconstruction (PBIR), Distribution Correction (DC), Quadratic Weighted Mean Square Error (QWMSE).
result Achieved superior expert-level performance (0.8885 quadratic-weighted kappa coefficient).

Spectral decoupling improves neural network generalization in medical imaging.

problem Poor generalization of neural networks trained on medical imaging data.
method Spectral decoupling, a regularization technique that encourages learning more features.
result Spectral decoupling increases network robustness and performance on external datasets.

Deep learning models outperform human pathologists in detecting mitotically active tumor regions.

problem Manual selection of tumor regions with highest mitotic activity can lead to significant inter-rater variability.
method Evaluated three deep learning methods for predicting mitotic density in canine mast cell tumors.
result Two-stage object detection model outperformed human pathologists in predicting mitotic density.

Abstract invariant cannot be expressed using various slice-torus invariants.

problem Cannot express Iida-Taniguchi's slice-torus invariant using other known invariants.
method Analysis of various known invariants and their properties.
result Iida-Taniguchi's slice-torus invariant cannot be realized as a linear combination of other invariants.

Study of Bauer-Furuta invariants under Lie group actions and Galois coverings.

problem Investigating invariants of 4-manifolds under group actions and Galois coverings.
method Functorial approach to equivariant invariants and study in Galois covering situations.
result Ordinary invariants of quotients are determined by equivariant invariants of the covering manifold.

The Kuperberg invariant is shown to be gauge invariant for certain framed 3-manifolds.

problem Exploring gauge invariance of the Kuperberg invariant for specific 3-manifolds.
method Using hyperbolic 3-manifolds and finite-dimensional Hopf algebras.
result First examples of gauge invariants of general finite-dimensional Hopf algebras via topological methods.

Paper introduces new invariant for pairs of immersions.

problem Understanding behavior of immersions through tangencies and triple points.
method Introduces J2+J^{2+}-invariant for oriented pairs of immersions, invariant under inverse tangencies and triple points.
result Invariant changes under direct tangencies but remains invariant under orientation change and inverse tangencies.

New invariant CWRCWR for alternating links is stronger than existing invariants.

problem Developing a stronger invariant for alternating links.
method Introducing CWRCWR invariant as an array of two-variable polynomials.
result The CWRCWR invariant is stronger than classical invariants like HOMFLYPT and Kauffman polynomials.

Defines knot concordance invariant using instanton homology and Donaldson invariants.

problem Knot concordance and its classification.
method Defines an invariant φ{\varphi} for knots in the 3-sphere using Donaldson invariants and Floer's instanton homology.
result The invariant φ{\varphi} coincides with a special case of an invariant defined by Froyshov.

Paper introduces a new invariant for virtual knotoids and proves it's a Vassiliev invariant of order one.

problem Tackles the problem of understanding invariants for virtual knotoids.
method Uses a 0-smoothing invariant constructed from local modifications at classical crossings.
result Demonstrates that the 0-smoothing invariant provides less information than the gluing invariant.

We construct two knot invariants. The first knot invariant is a sum constructed using linking numbers. The second is an invariant of flat knots and is a formal sum of flat knots obtained by smoothing pairs of crossings. This invariant can be used in conjunction with other flat invariants, forming a family of invariants…

2011-09-14abs ↗pdf ↗

As nilpotent studies in knot theory, we focus on invariants of Milnor, Orr, and Kontsevich. We show that the Orr invariant of degree k k is equivalent to the tree reduction of the Kontsevich invariant of degree <2k< 2k . Furthermore, we will see a close relation between the Orr invariant and the Milnor invariant, and …

2017-12-06abs ↗pdf ↗

In this article we introduce a family of transverse invariants arising from the deformations of Khovanov homology. This family includes the invariants introduced by Plamenevskaya and by Lipshitz, Ng, and Sarkar. Then, we investigate the invariants arising from Bar-Natan's deformation. These invariants, called ββ-invar…

2017-05-09abs ↗pdf ↗

We recall the definition of the quadratic helicity invariant and of the higher asymptotic ergodic MM-invariant. We present a simpler new proof (in part) that the MM-invariant is ergodic. The MM-invariant is a higher invariant, this means that for the magnetic field with closed magnetic lines the invariant is not a f…

2015-03-18abs ↗pdf ↗

We discuss an universal bordism invariant obtained from the Atiyah-Patodi-Singer eta-invariant from the analytic and homotopy theoretic point of view. Classical invariants like the Adams e-invariant, ρρ-invariants and StringString-bordism invariants are derived as special cases. The main results are a secondary index theo…

2011-03-22abs ↗pdf ↗

Paper proves Rohlin invariant's uniqueness and extends homology sphere invariants.

problem Proving the uniqueness of Rohlin invariant and extending homology sphere invariants.
method Using the Rohlin invariant's uniqueness, the paper extends invariants from trivial 2-cocycles to those with 2-torsion.
result Generalized invariants of homology spheres with 2-torsion values.