Research
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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.

169,341 papers · 148 categories

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69139208277 · Jun 202019922001200920182026
48 results for Database adaptation

Super Learner improves prediction in electronic healthcare databases.

problem Improving prediction models in large electronic healthcare databases.
method Super Learner ensemble learning algorithm combined with high-dimensional propensity score variable selection.
result Super Learner adapts to different datasets and optimizes predictive performance.

New method explains color vision's nonlinearities and adaptability.

problem Understanding human color vision's nonlinear and adaptive aspects.
method Sequential Principal Curves Analysis (SPCA) with local metric.
result Color discrimination thresholds and illuminant discount emerge from realistic data.

Paper proposes a method to predict optimal data partitioning based on query execution costs.

problem Finding optimal data partitioning for improved system performance and scalability.
method Formal model abstraction of workload queries, genetic algorithm for optimization, evaluation using PostgreSQL's query optimizer.
result The approach effectively reduces workload execution cost and improves system performance.

Differentially private data structures for estimating distances between strings.

problem Estimating distances between query strings and database strings while ensuring privacy.
method Proposes differentially private data structures for Hamming and edit distances using randomized response technique.
result Efficient data structures that provide accurate distance estimates with strong privacy guarantees.

ECG-DelNet uses neural networks to accurately delineate ECGs, even with low-quality data.

problem Lack of model explainability and small databases limit deep learning applicability in ECG detection.
method Adapted U-Net architecture for 1D data, used PhysioNet's QT database, applied data augmentation and regularization techniques.
result Best configuration achieved high precision and recall for P, QRS, and T waves.

Study tackles database variability in medical data using ensemble models and CNNs.

problem Achieving robust generalization in machine learning models across multiple medical databases.
method Ensemble of local models based on convolutional neural networks (CNNs) and various data preprocessing techniques.
result Improved inter-database generalization performance and scalability of models.

Study connects database alignment and planted matching using Gaussian features.

problem Identify matching between correlated user features in anonymized databases.
method Derived results for database alignment and planted matching, showing connections and thresholds.
result Performance thresholds for database alignment converge to planted matching when feature dimensionality is sufficiently high.

This paper presents an assessment of global economic energy potentials for all major natural energy resources. This work is based on both an extensive literature review and calculations using natural resource assessment data. Economic potentials are presented in the form of cost-supply curves, in terms of energy flows …

2012-05-21abs ↗pdf ↗

Graph database outperforms in filtering ESG stocks efficiently.

problem Efficiently filtering ESG stocks from large lists of equities.
method Compared SQL, No-SQL, and graph databases; used Python for database interactions; collected data from stock price and financial news.
result Graph database is more efficient for ESG stock filtering.

CwA optimizes search performance by jointly learning a balanced database partition and a neural probing function.

problem Suboptimal search performance due to mismatched database and query distributions.
method CwA jointly learns a balanced database partition and a neural probing function to optimize search performance directly for the query distribution.
result CwA achieves up to 4.7x throughput over state-of-the-art methods at equal recall.

This paper presents a new classification methods for Event Related Potentials (ERP) based on an Information geometry framework. Through a new estimation of covariance matrices, this work extend the use of Riemannian geometry, which was previously limited to SMR-based BCI, to the problem of classification of ERPs. As co…

2014-08-30abs ↗pdf ↗

Bayesian entity resolution merges together multiple, noisy databases and returns the minimal collection of unique individuals represented, together with their true, latent record values. Bayesian methods allow flexible generative models that share power across databases as well as principled quantification of uncertain…

2014-10-17abs ↗pdf ↗

Paper proposes a new method for robust speaker verification.

problem Improving robustness in speaker verification systems.
method Combines soft VAD and self-adaptive VAD with DNN-based VAD.
result Significant improvement in verification performance in real-world environments.

Paper improves text-to-SQL translation by encoding schema relations with self-attention.

problem Improving text-to-SQL translation accuracy across diverse databases.
method Uses relation-aware self-attention to encode schema information.
result Significant gains on Spider dataset (42.94% exact match accuracy).

Graph Neural Networks improve machine learning on relational databases.

problem Training machine learning models on relational databases requires costly data extraction and feature engineering.
method Uses Graph Neural Networks to extract features from relational databases.
result Outperforms state-of-the-art automatic feature engineering methods.

Novel algorithm compresses ECG signals with preserved R peaks.

problem Efficiently compressing ECG signals while preserving R peak information.
method Blaschke unwinding AFD for faster convergence and higher fidelity.
result The proposed algorithm outperforms state-of-the-art approaches in ECG signal compression.

A new ranking algorithm learns data affinity and ranking scores simultaneously.

problem Retrieving similar objects in large databases is challenging.
method Proposes a ranking algorithm that learns data affinity and ranking scores simultaneously, using adaptive neighbors and smoothness constraints.
result The proposed algorithm outperforms existing methods in synthetic and real datasets.

Paper presents a new Wi-Fi RSS and geomagnetic field database for indoor localization and trajectory estimation.

problem Indoor localization and trajectory estimation challenges.
method Convolutional neural network (CNN) for RSS data and LSTM network for geomagnetic field intensity.
result CNN and LSTM networks show feasibility for localization and trajectory estimation.

New deep learning method validated across multiple sleep staging databases.

problem Improving automatic sleep scoring accuracy across different datasets.
method Ensemble of local models using deep learning for automatic sleep staging.
result Good general performance compared to human experts and state-of-the-art methods.

New method protects privacy while allowing accurate statistical inference from synthetic data.

problem Ensuring privacy in database release while maintaining statistical utility.
method Kernel mean embedding with differential privacy constraints.
result Consistent estimators of population statistics can be constructed while protecting individual privacy.

Transfer learning improves handwriting recognition in small datasets.

problem Reduced training datasets for handwriting text recognition.
method Transfer learning from a larger database to a smaller one, focusing on retraining the whole CNNLSTM-CTC model.
result Significant improvement in character error rate (CER) with transfer learning, reducing CER from 18.2% to 3.3%.

Interactive image retrieval system learns from user feedback and unlabeled data.

problem Efficiently retrieve relevant images with minimal user interaction.
method Combines active learning and graph-based semi-supervised learning (GSSL) to use unlabeled data.
result High F1 scores with few relevance feedback rounds on large datasets.