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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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2885768631,151 · Jun 202019922001200920182026
48 results for data extraction

Paper proposes a method to extract style features from unlabeled data.

problem Extracting fine-grained features like styles from unlabeled data.
method Contrastive conditioned variational autoencoders with mutual information constraints.
result The method efficiently extracts style features from real-world natural image datasets.

This paper reviews methods for feature selection and extraction in pattern analysis.

problem Complex raw data require feature selection or extraction for better discrimination or representation.
method Reviews different methods of feature selection and extraction.
result Compares various methods of feature selection and extraction.

Relational Autoencoder improves feature extraction by considering data relationships.

problem Feature extraction from high-dimensional data fails to consider data relationships.
method Proposes a Relation Autoencoder model that considers both features and relationships.
result Considering data relationships generates more robust features with lower error rates.

Automated system extracts medication regimens from medical conversations.

problem Extract relevant medication information from medical conversations.
method QA task approach, combined QA and Information Extraction, data augmentation, public embeddings, pretraining.
result Improved accuracy in extracting dosage and frequency from 54.28 and 37.13 to 89.57 and 45.94.

Automatically mined rules from dependency parsing help neural models learn from less labeled data.

problem Lack of labeled data for aspect and opinion term extraction.
method Automatically mined rules from dependency parsing, applied to auxiliary data, combined with human-annotated data.
result Neural models achieve better performance than state-of-the-art with mined rules and auxiliary data.

MIMIC-Extract transforms EHR data for reproducible healthcare machine learning.

problem Lack of accessible, standardized healthcare data for machine learning.
method Open-source pipeline for converting raw EHR data into usable dataframes.
result Demonstrates utility through benchmark tasks and baseline results.

New method compares feature importance and rule extraction for text data interpretability.

problem Unexpected differences in explanations from feature importance and rule extraction methods.
method Proposes a new approach to compare explanations from different methods.
result Different methods can lead to unexpected explanations, even for simple models.

A method reduces dimensionality for multi-block data, enhancing feature extraction and classification accuracy.

problem Tractable feature extraction from large-scale, multi-dimensional data.
method Common and individual feature extraction from multi-block data structures using tensor decompositions.
result Significant reduction in dimensionality and enhanced accuracy in feature extraction and classification.

Study examines neural networks for feature extraction and their impact on machine learning models.

problem Improving feature extraction for better machine learning model performance.
method Used neural networks to extract features from images and numeric data, then compared these features with SVMs and KNNs.
result Neural network-extracted features significantly enhance SVM and KNN performance in many cases.

Deep-FExt uses machine learning to improve vessel segmentation and centerline detection in medical images.

problem Improving vessel segmentation and centerline detection in medical images.
method Inception models for feature extraction, multi-scale and multi-layer convolutional operators, fully convolutional networks.
result Deep-FExt outperforms existing schemes with high Dice scores on DRIVE and STARE datasets.

CAI automates extraction and validation of corporate GHG emission metrics.

problem Manual extraction of corporate GHG emission metrics is labor-intensive and error-prone.
method CAI uses LLMs to automate extraction and validation of metrics from corporate disclosures.
result CAI improves data collection efficiency and accuracy by automating the process.

Marich extracts high-fidelity models from public data with minimal queries.

problem Creating an accurate replica of a target ML model using few queries.
method Sequentially selects informative queries to maximize entropy and reduce model mismatch.
result Extracted models achieve 60-95% of target model's accuracy with 1,000-8,500 queries.

Extracts behavioral features from smartphone and wearable data.

problem Processing raw data streams from smartphones and wearables for human behavior analysis.
method Generic framework for processing raw data streams and extracting behavioral features.
result Extracts useful features related to non-verbal human behavior from raw data streams.

Proposes OpenKI for better web-scale knowledge extraction and alignment.

problem Combining OpenIE and KB for web-scale knowledge extraction and alignment.
method Instance-level inference using neighborhood information from KB and OpenIE extractions, with attention mechanisms.
result Significantly improves performance on OpenIE extractions and semi-structured data.

Paper improves relation extraction in clinical texts with limited data.

problem Relation extraction in narrow knowledge domains with scarce annotated data.
method Introduces a bag-of-concepts (BoC) model and compares it with window-bounded co-occurrence (WBC).
result BoC model outperforms baseline and other complex methods on small dataset.

Study compares WTT and DWT for FTIR data feature extraction of medicinal plants.

problem Improving machine learning efficiency with FTIR spectra of medicinal plants.
method Comparison of WTT and DWT for feature extraction, varying preprocessing steps.
result WTT and DWT yield similar results, improving clustering and classification accuracy.

Gradient-based method extracts slow features from high-dimensional data.

problem Extracting meaningful low-dimensional features from high-dimensional, temporally varying data.
method Power Slow Feature Analysis (PowerSFA) using gradient-based training of differentiable architectures.
result PowerSFA effectively extracts meaningful low-dimensional features in various data types.

Automatically extracts features from time series data for improved forecasting.

problem Manual feature selection for time series forecasting is inefficient and prone to errors.
method Extracts features from time series using recurrence plots and computer vision algorithms.
result Automatically extracted features lead to highly comparable and sometimes superior forecasting performance.

Deep neural networks are a powerful tool for feature learning and extraction given their ability to model high-level abstractions in highly complex data. One area worth exploring in feature learning and extraction using deep neural networks is efficient neural connectivity formation for faster feature learning and extr…

2015-12-11abs ↗pdf ↗

A novel framework extracts essential factors from order flow data for high-frequency trading.

problem Challenges in extracting and utilizing order flow data due to its large volume and limitations of traditional techniques.
method Proposes a Context Encoder and Factor Extractor for unsupervised learning of important signals from order flow data.
result Extracts superior factors from order flow data, improving stock trend prediction and order execution tasks.

AIME embeds multi-omics data to adjust confounders and find related features.

problem Extracting meaningful relationships between complex omics data types while accounting for confounders.
method Autoencoder-based deep learning approach that incorporates clinical confounders.
result AIME effectively adjusts for confounders and extracts biologically relevant features.

A new framework extracts informative features from multiple data types.

problem Finding maximally correlated feature representations from multimodal data.
method Soft-HGR framework, which relaxes whitening constraints while preserving feature geometry.
result Soft-HGR learns more informative feature mappings and is more efficient to optimize.

This study uses partially annotated data to improve TempRel extraction.

problem Lack of fully annotated data for TempRel extraction makes the task labor-intensive and limited in coverage.
method Utilizes partially annotated data (P) for TempRel extraction, even when annotations are missing.
result Partially annotated data (P) can still be a useful supervision signal for TempRel extraction within a constrained learning framework.

A new model improves relation extraction accuracy through relation-gated adversarial learning.

problem Relation extraction from sentences is challenging due to expensive human annotation and noisy distant supervision.
method Proposes relation-gated adversarial learning for relation extraction, extending domain adaptation methods.
result The model outperforms previous domain adaptation methods and improves accuracy of distance supervised relation extraction.

Paper proposes a novel model to improve n-ary cross-sentence relation extraction by addressing noisy data and non-consecutive sentences.

problem Noisy labeled data and non-consecutive sentences in n-ary cross-sentence relation extraction.
method Two-level agent reinforcement learning model and hybrid attention mechanism/PCNN approach.
result The model reduces the impact of noisy data and achieves better performance.

Efficiently use expert time in relation extraction by using distant supervision and active learning.

problem Scarcity of labeled data in relation extraction, especially with expert time constraints.
method Use distant supervision to label data and active learning to refine results with expert feedback.
result Improved relation extraction results with active learning from expert feedback.