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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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3570104139 · May 201919922001200920182026
48 results for class-aware embeddings

SRP efficiently learns class-aware embeddings for large datasets.

problem High computational complexity in supervised dimensionality reduction for large datasets.
method Supervised random projections (SRP) for direct class-aware embedding learning.
result SRP achieves 1-2 orders of magnitude better computational performance.

This work improves deep metric learning by online soft mining and class-aware attention.

problem Slow convergence and poor performance due to a large fraction of trivial samples in deep metric learning.
method Online Soft Mining (OSM) and Class-Aware Attention (CAA) to select and focus on relevant samples.
result Significantly outperforms state-of-the-art methods on fine-grained visual categorization and video-based person re-identification datasets.

FSD-CAP improves graph feature imputation under high missing rates.

problem Challenges in imputing missing node features in graphs, especially under high missing rates.
method Two-stage framework: subgraph expansion, fractional diffusion, class-aware propagation.
result Significantly improved imputation quality compared to existing methods, achieving high accuracy on benchmark datasets.

Proposes DFDG for robust domain generalization without source domain labels.

problem Robustness of deep learning models in real-world applications where train and test distributions differ.
method Model-agnostic, class-aware alignment of class relationships through saliency maps.
result Competitive performance on time series sensor and image classification datasets.

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.

DeepFRC learns both alignment and classification of functional data in one model.

problem Phase variability in functional data obscures underlying patterns and degrades model performance.
method End-to-end deep learning framework that combines diffeomorphic warping functions and a classifier.
result DeepFRC outperforms state-of-the-art methods in both alignment quality and classification accuracy.

Class labels have been empirically shown useful in improving the sample quality of generative adversarial nets (GANs). In this paper, we mathematically study the properties of the current variants of GANs that make use of class label information. With class aware gradient and cross-entropy decomposition, we reveal how …

2017-03-06abs ↗pdf ↗

RegMixMatch optimizes Mixup for semi-supervised learning by integrating high- and low-confidence samples.

problem Mixup degrades SSL performance by compromising artificial labels purity.
method RegMixMatch integrates high- and low-confidence samples, uses class-aware Mixup, and mitigates confirmation bias.
result RegMixMatch achieves state-of-the-art performance in SSL benchmarks.

Study reveals class-dependent effects in perturbation-based feature attribution metrics for time series classification.

problem Varying effectiveness of perturbation-based metrics across different classes in time series models.
method Systematic empirical analysis across multiple datasets, model architectures, and perturbation strategies.
result Perturbation-based metrics show varying effectiveness across classes, with some metrics performing better for certain classes.

New benchmarks improve model performance by accounting for isomorphism classes in multi-relational datasets.

problem Synthetic multi-relational datasets lack isomorphism class awareness, leading to overestimation of model performance.
method Proposed isomorphism-aware synthetic benchmarks and a prioritisation scheme to improve model performance and stability.
result Isomorphism classes can be utilised to improve model performance, stability during training, and reduce training time.

Interpretable representations improve explainable AI by translating complex data into understandable concepts.

problem Many explainers use interpretable representations but overlook their full potential and assumptions.
method An in-depth analysis of interpretable representations for tabular, image, and text data, identifying strengths, weaknesses, and desiderata.
result Linear model quantifies interpretable concepts' influence on black-box predictions, revealing their explanatory properties and manipulability.

Proposes QQE for transforming and embedding data distributions.

problem Transforming and embedding data distributions for better representation or visualization.
method Quantile-Quantile Embedding (QQE) using quantile-quantile plot concept.
result QQE allows for better discrimination of classes in some cases.

A new embedding structure, res-embedding, improves deep CTR models by enhancing generalization performance.

problem Deep CTR models often suffer from poor generalization performance due to learning of embedding parameters.
method Developed a res-embedding structure that combines a central embedding vector from an item-based interest graph with a residual embedding vector.
result Empirical evaluation shows significant improvement in model performance using the res-embedding structure.

Curvature regularization prevents distortion in graph embeddings.

problem Graph topology patterns distort in Euclidean space, making detection difficult.
method Proposes curvature regularization to enforce flatness in embedding manifolds.
result Significant improvements in five embedding methods on open graph datasets.

Word embeddings are a powerful approach for unsupervised analysis of language. Recently, Rudolph et al. (2016) developed exponential family embeddings, which cast word embeddings in a probabilistic framework. Here, we develop dynamic embeddings, building on exponential family embeddings to capture how the meanings of w…

2017-03-23abs ↗pdf ↗

Improves machine learning performance with domain-specific embeddings.

problem Tuning word embeddings for specific use cases and domains.
method Combines multiple domain-specific embeddings using a ranking function and dimensionality reduction.
result Effective domain-specific embeddings improve machine learning performance.

Unified framework for word embedding models using noise examples.

problem Improving word embedding models with negative sampling.
method Formulated a Word-Context Classification (WCC) framework that generalizes SkipGram word embedding models.
result The best noise distribution is the data distribution, improving both performance and training speed.

The study characterizes and verifies equivariant embeddings of symmetric Kählerian manifolds.

problem Characterizing and verifying equivariant embeddings of symmetric Kählerian manifolds.
method Investigation motivated by Cartan and Wallach's theorem on symmetric spaces, focusing on CPn\mathbb{CP}^n and parallel plurimean curvature.
result If an equivariant embedding has parallel plurimean curvature, it is the extrinsically symmetric one.

The paper defines invariants for almost graph embeddings and explores their properties.

problem Understanding the properties and limitations of almost graph embeddings in the plane.
method Introducing and analyzing integer invariants (winding number, Wu numbers) for almost embeddings.
result Some values of invariants are realizable for almost embeddings but not for embeddings.

This paper proposes a new method for embedding sequences using Wasserstein distances.

problem Embedding sequences in a metric space for better pattern recognition.
method Develops a deep learning model that embeds sequences as distributions and uses Wasserstein distances for comparison.
result Distributional embeddings using Wasserstein distances outperform traditional vector embeddings.

For leveled spatial graphs, we find a surface embedding that allows cellular embedding.

problem Finding a surface embedding for general spatial graphs is not always possible.
method Define leveled property, decompose graph into subgraphs, and construct surface.
result For leveled spatial graphs with a small number of levels, a surface can always be found.

Proposes spherical text embedding for better directional similarity.

problem Directional similarity is more effective but unsupervised text embeddings are typically learned in Euclidean space.
method Develops a spherical generative model and an efficient optimization algorithm for unsupervised word and paragraph embeddings.
result Achieves state-of-the-art performances on various text embedding tasks.

Long spacelike embeddings can be approximated by isometric ones.

problem Approximating long embeddings to isometric embeddings in Lorentzian spaces.
method Proving approximation by constructing C1C^1 isometric embeddings.
result Long spacelike embeddings can be C0C^0-approximated by C1C^1 isometric embeddings.

A {\it wrinkled embedding} f:VnWmf:V^n\to W^m is a topological embedding which is a smooth embedding everywhere on VV except a set of (n1)(n-1)-dimensional spheres, where ff has cuspidal corners. In this paper we prove that any rotation of the tangent plane field TVTWTV\subset TW of a {\it smoothly embedded} submanifold $V\s…

2011-08-05abs ↗pdf ↗

Compositional Network Embedding learns node embeddings from node features.

problem Cold-start problem and lack of robustness to noise in existing network embedding methods.
method Generative framework that combines node attribute embeddings through a graph-based loss.
result Effectiveness and generalization of compositional network embeddings, especially on unseen nodes.