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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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48 results for latent feature representation

VAE learns latent speech emotion features for classification.

problem Learning effective features for speech emotion recognition.
method Variational Autoencoders (VAEs) for generating latent speech emotion representations.
result VAEs produce state-of-the-art results for speech emotion classification.

The ability of the Generative Adversarial Networks (GANs) framework to learn generative models mapping from simple latent distributions to arbitrarily complex data distributions has been demonstrated empirically, with compelling results showing that the latent space of such generators captures semantic variation in the…

2016-05-31abs ↗pdf ↗

VGAE learns latent representations for graphs using latent variables.

problem Learning interpretable latent representations for undirected graphs.
method Variational auto-encoder framework with graph convolutional network encoder and inner product decoder.
result VGAE achieves competitive link prediction results and improves performance with node features.

Improved generalization in abstract reasoning tasks using disentangled latent representations.

problem Improving generalization in unsupervised representation learning for abstract reasoning.
method Used disentangled VAEs to learn latent representations from relational reasoning problems.
result Disentangled latent representations outperform supervised learning in generalization.

The study uses pre-trained neural networks to adjust for confounding in non-tabular data.

problem Neglecting non-tabular data sources can lead to biased ATE estimates.
method Leverages latent features from pre-trained neural networks to adjust for confounding.
result Neural networks can achieve fast convergence rates for ATE estimation with latent features.

Paper proposes a new model for disentangled latent representations using copula transformations.

problem Disentanglement of latent features in deep latent variable models.
method Adopted deep information bottleneck model, applied copula transformation to restore invariance and sparsity.
result The new model achieves disentanglement and sparsity of latent features.

New algorithm disentangles latent features without strict assumptions.

problem Disentangling complex data-generating mechanisms into causally interpretable latent features.
method Linear CRL algorithm with topological ordering, pruning, and disentanglement.
result Recovering latent causal features up to an equivalence class under weaker assumptions.

Proposes LMSSC for multi-view semi-supervised classification.

problem Leveraging multiple complementary views for improved classification.
method Semi-supervised classification with latent multi-view representation learning.
result Unified framework for latent representation learning, graph construction, and label propagation.

Proposes a model to decompose feature-level variation in high-dimensional data.

problem Interpreting complex high-dimensional data for understanding feature-level variability.
method Covariate Gaussian Process Latent Variable Model (c-GPLVM) for structured kernel decomposition.
result Extracts low-dimensional structures from high-dimensional data sets while explaining feature-level variability.

Proposes a new framework for image generation using classification latent space representations.

problem Combining discriminative and dense representations for image generation and reconstruction.
method Discriminative modeling framework using manipulated supervised latent representations.
result Higher classification accuracy and visually realistic image generation compared to existing models.

LIT-LVM improves linear predictors by estimating interaction terms with latent vectors.

problem Accurately estimating coefficients for interaction terms in linear predictors.
method Structured regularization using latent vectors to represent features.
result LIT-LVM achieves superior prediction accuracy compared to other methods.

SDREM models complex network data with deep learning, improving link prediction.

problem Modeling latent structures in relational data with high-order node dependence.
method Scalable deep generative relational model (SDREM) incorporating high-order neighbourhood structure and novel data augmentation.
result Improved link prediction performance on real-world datasets.

FLAMBE tackles RL in low rank MDPs by learning features.

problem Dealing with the curse of dimensionality in RL.
method Develops FLAMBE, a method that engages in exploration and representation learning for RL in low rank transition models.
result FLAMBE efficiently learns features for RL in low rank transition models.

Method determines latent dimensionality in international trade flows.

problem Finding meaningful low-dimensional latent features in high-dimensional international trade data.
method Proposes a latent dimension determination method based on clustering of nonnegative RESCAL decompositions.
result Validates the latent features against empirical economic facts.

Enhances GPLVM for multi-view data with scalable latent representation learning.

problem Limited kernel expressiveness and computational inefficiency in multi-view GPLVM.
method Introduces a new duality between spectral density and kernel function, uses NG-SM kernel, and applies random Fourier feature approximation for scalability.
result Consistently outperforms state-of-the-art models in learning meaningful latent representations across diverse datasets.

The paper explores indeterminacy in latent factor projections and its implications for data representation.

problem Indeterminacy in latent factor projections and its implications for data representation.
method Analyzes the fundamental problem of indeterminacy in latent factor projections and discusses its implications for data representation.
result Latent factor determinacy across all facets is achieved when the feature-dimension grows to infinity.

FMI uses matching to mimic interventions for causal feature learning.

problem Challenges in causal discovery from observational data.
method Feature Matching Intervention (FMI) using matching to emulate perfect interventions.
result FMI outperforms in identifying causal features from observational data.

Plug-in method decomposes latent representations into interpretable factors.

problem Decomposing latent representations in neural networks without altering the original models.
method Factors' Decomposer-Entangler Network (FDEN) that learns to decompose latent representations into mutually independent factors.
result FDEN framework effectively decomposes latent representations into interpretable factors, maintaining original model integrity.

Learn generic latent relational graphs for better transfer learning.

problem Lack of transferable structured graphical representations in deep transfer learning.
method Unsupervisedly learned latent relational graphs from unlabeled data.
result Improves performance on various downstream tasks.

Researchers analyze neural process architectures and their representational capacities.

problem Understanding what functions can be represented by different neural process architectures.
method Analyzing four types of neural process architectures: CNPs, ANPs, TNPs, and their latent variants.
result Prove these architectures form a strict hierarchy and characterize their representational capabilities.

New method for visualizing high-level concepts in generative models.

problem Challenges in evaluating and visualizing concepts in generative models.
method Introduces a method to compute concept saliency maps for latent representations of known or novel high-level concepts.
result Concept saliency maps highlight input features important for high-level concepts.

Proposes a new method for multi-class classification with well-calibrated predictions.

problem Improving the accuracy and reliability of multi-class classification models.
method Trains data in a latent space induced by an (n1)(n-1)-dimensional simplex, then extends and fits a regression model.
result Demonstrates a well-calibrated classifier with improved prediction and calibration properties.

New method prevents posterior collapse in generative models.

problem Posterior collapse weakens generative model capacity or requires complex objectives.
method Proposes δδ-VAEs that constrain the posterior variational family to a minimum distance from the prior.
result Achieves state-of-the-art log-likelihood on CIFAR-10 and ImageNet 32x32.

The paper tackles model collapse in GPLVMs by improving kernel flexibility and projection variance.

problem Model collapse in GPLVMs leading to vague latent representations.
method Theoretical analysis of projection variance, integration of SM and RFF kernels, and variational inference.
result The advisedRFLVM outperforms competing models in informative latent representations and missing data imputation.

New approach for multitask learning over networks sharing a common latent feature.

problem Learning multiple tasks simultaneously in a distributed network.
method Assumes shared latent feature representation; develops distributed online algorithms.
result Unified framework for analyzing mean-square-error performance.

Generative model for morphological continuum of normal and pathological states.

problem Identifying trends and features that separate normality and pathology in biomedical images.
method Wasserstein Auto-encoder with HSIC regularization for latent features.
result Model generates a continuum of morphological changes corresponding to side information.

Generative Kernel PCA explores latent spaces for data interpretation and novelty detection.

problem Exploring latent spaces of datasets for better data interpretation.
method Generative Kernel PCA using hidden and visible units similar to Restricted Boltzmann Machines.
result Gradually moving in the latent space allows for interpretation of components and detection of novel patterns.

Spatial VAEs use MVN distributions to encode spatial information explicitly.

problem Capturing spatial information in latent space using traditional VAEs.
method Propose spatial VAEs using matrix-variate normal distributions and low-rank MVN distributions.
result Spatial VAEs outperform traditional VAEs in capturing spatial information.

A new SSL method using whitening of latent-space features.

problem Efficiency and effectiveness of self-supervised representation learning.
method Proposes a new loss function based on whitening of latent-space features, avoiding the need for negatives and asymmetric networks.
result Improves efficiency and effectiveness of SSL by avoiding the need for negatives and asymmetric networks.

The paper analyzes unsupervised learning using contrastive methods and introduces a theoretical framework.

problem Learning useful feature representations from unlabeled data.
method Introduces latent classes and contrasts similar vs. non-similar data points.
result Proves guarantees on the performance of learned representations on downstream tasks.

T-JEPA learns tabular data representations without augmentations, outperforming traditional methods.

problem Challenges in self-supervised learning for tabular data due to lack of data augmentations.
method T-JEPA uses a Joint Embedding Predictive Architecture (JEPA) to predict latent representations of different subsets of features within the same sample.
result Significant improvement in classification and regression tasks, outperforming traditional methods.

Paper presents a novel approach for global feature aggregation in Graph Neural Networks.

problem Graphs lack a straightforward way to perform non-local feature aggregation like images and texts.
method Utilizes Latent Fixed Data Structure (LFDS) to aggregate feature vectors from local extraction.
result Proposed methods achieve competitive or better results with linear computational complexity.

Proposes a VAE with a discrete bottleneck for better text generation.

problem VAEs struggle with latent variable auto-regressive decoding in text generation.
method Introduces a discretized bottleneck to enforce latent feature matching in a compact space.
result Demonstrates improved text generation capabilities across various tasks.