Research
On-device research index

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

Trend · papers per month

25.0%50.0%75.0%100.0% · Feb 199419922001200920182026
48 results for feature relationships

LoCEC classifies user relationships in large social networks, addressing sparsity issues.

problem Sparse relationship feature and label data in real social platforms.
method Local Community-based Edge Classification (LoCEC) framework with three-phase processing.
result Effective and efficient classification of user relationships in large-scale networks.

Feature extraction becomes increasingly important as data grows high dimensional. Autoencoder as a neural network based feature extraction method achieves great success in generating abstract features of high dimensional data. However, it fails to consider the relationships of data samples which may affect experimental…

2018-02-09abs ↗pdf ↗

Paper proposes CNN with SIFT for rotation invariant feature extraction.

problem Max-pooling layer discards rotational information, leading to rotation invariance issues.
method Uses SIFT descriptor to capture orientation and spatial relationships.
result Improves feature extraction on MNIST and fashionMNIST datasets.

Traditionally, multitask learning (MTL) assumes that all the tasks are related. This can lead to negative transfer when tasks are indeed incoherent. Recently, a number of approaches have been proposed that alleviate this problem by discovering the underlying task clusters or relationships. However, they are limited to …

2012-06-18abs ↗pdf ↗

The study explores statistical methods to interpret radiological models and identify key features.

problem Interpreting complex radiological models for clinical use.
method Exploration of statistical techniques to assess relationships between radiomic features.
result Identification of key relationships and features for improved interpretability.

This paper reviews and evaluates causality-based feature selection methods.

problem Capturing causal relationships between features and class variable for better model interpretability.
method Comprehensive review and evaluation of causality-based feature selection algorithms.
result Development of CausalFS package for algorithm comparison and experimentation.

Neural model predicts survival outcomes and reveals feature relationships.

problem Predicting time-to-event outcomes and understanding feature relationships in clinical data.
method Survival and topic modeling combined in a neural network framework.
result Neural survival-supervised topic models achieve competitive accuracy with interpretability.

Proposes a method to improve urban spatiotemporal forecasting using multi-modal graph interaction.

problem Improving spatiotemporal forecasting in urban areas using graph convolution networks.
method Develops modality interaction mechanisms for multi-graph convolution networks to reduce generalization error.
result Proposed techniques improve prediction accuracy and model robustness compared to state-of-the-art baselines.

One-shot algorithm for feature-distributed kernel PCA reduces communication costs.

problem Efficiently perform kernel PCA in distributed computing environments.
method Inspired by dual relationship between sample-distributed and feature-distributed scenarios, proposes a one-shot algorithm for feature-distributed kernel PCA.
result The algorithm provides high-quality results with low communication costs, especially when eigenvalues decay fast.

This paper proposes a new multitask learning method to better measure task relationships.

problem Learning multiple tasks independently loses information about task relationships.
method Jointly learns shared parameters and shared feature representations through a new strategy.
result The proposed method better measures task relationships and optimizes shared parameters.

Introduces top-kk regularization for better feature selection in machine learning.

problem Limited ability of existing feature selection methods to reconcile feature representativeness and inter-correlations.
method Top-kk regularization, which induces a sub-architecture on the model's architecture to select informative features and model complex relationships.
result Uniform approximation error bound for top-kk regularization approximating high-dimensional sparse functions.

Capsule networks improve temporal data understanding, achieving 96.21% ECG accuracy.

problem Improving temporal data understanding with capsule networks.
method Generated capsules along temporal and channel dimensions, learning contrasting relationships.
result Achieved 96.21% accuracy on ECG signal beat categories, surpassing state-of-the-art.

A new random forest algorithm uncovers feature interdependencies better than traditional methods.

problem Tackles the sub-optimality of greedy decision tree implementations in random forests.
method Presented a 'stepwise lookahead' variation of random forests that considers multiple split nodes simultaneously.
result Significantly outperforms greedy random forests in uncovering feature interdependencies, especially in high-noise environments.

SFB uses stable features to adapt unstable ones for better performance.

problem Improving classifier performance on out-of-distribution data by leveraging stable features.
method SFB learns a predictor that separates stable and unstable features, then adapts unstable predictions using stable predictions.
result SFB can learn an asymptotically-optimal predictor without test-domain labels.

dGAP learns feature dependencies and predicts targets simultaneously.

problem Learning task-agnostic statistical dependencies and missing explicit feature dependencies.
method Jointly optimizes a neural dependency graph and target prediction loss.
result dGAP can recover correct feature dependencies and improve prediction accuracy.

This study explores how feature graphs enhance GNNs' performance in modeling interactions.

problem Improving GNNs' ability to model feature interactions effectively.
method Investigates feature graphs and their importance in GNNs, using experiments and theoretical support.
result Edges between interacting features are crucial for GNNs, while non-interaction edges can degrade performance.

UMFI improves feature importance methods by reducing runtime and enhancing performance.

problem Improving feature importance methods to better explain causal and associative relationships in data.
method Introducing UMFI, which uses dependence removal techniques from AI fairness literature.
result UMFI outperforms MCI, especially in complex data scenarios, and reduces runtime from exponential to super-linear.

The paper investigates causal relationships in heart failure prediction using machine learning.

problem Understanding the causal relationships between clinical variables and heart failure.
method Proposes a new computational framework for causal structure discovery (CSD) of mixed-type clinical variables for binary disease outcomes.
result Feature importance from nonlinear classifiers strongly correlates with causal strength of variables, but not differentiating cause and effect.

Improved interpretability methods for ML models using local regressions and variable importance.

problem Inability of existing interpretability methods to provide reliable explanations for ML models, especially in high-dimensional problems with irrelevant features and non-linear relationships.
method Introduces VarImp and SupClus methods using local regressions with weighted distance considering variable importance.
result VarImp and SupClus methods yield better explanations than state-of-the-art approaches, especially in high-dimensional problems with irrelevant features and non-linear relationships.

Study detects unlawful insider trading using SHAP and CF, identifying key features.

problem Detecting and explaining unlawful insider trading with MNPI.
method Combining Shapley Values and Causal Forest approaches.
result Identifies key features explaining unlawful insider trading.

Improved CAEs reduce training time and enhance generalization.

problem Stability issues in Concrete Autoencoders (CAEs) for feature selection.
method Indirectly Parameterized Concrete Autoencoders (IP-CAEs) learn parameters of Gumbel-Softmax distributions.
result IP-CAEs achieve significant improvements in generalization and training time.

New model captures complex relationships from experimental data.

problem Capturing intricate feature interactions in empirical data.
method Shape Arithmetic Expressions (SHAREs) combining GAMs and mathematical expressions.
result SHAREs model captures complex feature interactions.

Clusters asset classes to identify lead-lag relationships in market regimes.

problem Understanding lead-lag relationships between different asset classes.
method Defining macroeconomic regimes by clustering indices and investigating lead-lag relationships.
result Unravels market features and highlights informative market trends or risks.

A new method learns both global and local features for domain adaptation.

problem Lack of local relationship learning between instances in different domains.
method Dual autoencoders (MDAad and MMDA) for global and local feature learning, leveraging label information.
result Outperforms state-of-the-art methods in domain adaptation tasks.

Method selects features robust to concept shift using Shapley values.

problem Feature selection in static data does not work well with concept shifts.
method Establishes a direct relationship between Shapley values and prediction errors, detecting individual variable biases.
result Significantly outperforms state-of-the-art feature selection methods in concept shift scenarios.

Method predicts which high-dimensional correlation signs will change in the future.

problem Predicting which correlation matrix coefficients will change signs in high-dimensional data.
method Stability of correlation signs depends on three-by-three relationships, inspired by Heider social cohesion theory.
result The method accurately predicts the stability of correlation signs in high-dimensional data.

This paper presents a novel multitask multiple kernel learning framework that efficiently learns the kernel weights leveraging the relationship across multiple tasks. The idea is to automatically infer this task relationship in the \textit{RKHS} space corresponding to the given base kernels. The problem is formulated a…

2016-11-10abs ↗pdf ↗

A new method selects robust features for ML models using causal discovery.

problem Challenges in feature selection for ML models with limited domain knowledge.
method Multidata causal feature selection using PC1 or PCMCI algorithms.
result The method improves model performance and provides interpretable drivers.

Paper proposes ICCN to learn correlations between text, audio, and video for multimodal sentiment analysis.

problem Improving multimodal sentiment analysis by learning hidden correlations between text and audio/video features.
method Interaction Canonical Correlation Network (ICCN) using deep canonical correlation analysis (DCCA).
result Empirical results confirm the effectiveness of ICCN in capturing useful information from all three views.

Deep learning improves classification and characterization of amorphous materials.

problem Challenges in quantifying structure-property relationships and identifying structural features in amorphous materials.
method Application of convolutional neural networks and message passing neural networks to molecular dynamics simulations.
result Message passing neural networks outperform convolutional neural networks in classifying and characterizing amorphous materials.

A new method extends GLRAM for matrices, preserving feature relationships and reducing overfitting.

problem Overfitting and loss of feature relationships in matrix data.
method Generalized Low-Rank Approximation of Matrices (GLRAM) extension with multiple-pairs of transformations.
result The proposed method reduces overfitting and preserves feature relationships.