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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.

168,694 papers · 148 categories

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3907791,1691,558 · Jun 202019922001200920172026
48 results for training data selection

Data selection methods, such as active learning and core-set selection, are useful tools for machine learning on large datasets. However, they can be prohibitively expensive to apply in deep learning because they depend on feature representations that need to be learned. In this work, we show that we can greatly improv…

2019-06-26abs ↗pdf ↗

The paper develops an algorithm to select a subset of training data for efficient regression models.

problem Designing an efficient algorithm for selecting a subset of training data to train regression models quickly without sacrificing accuracy.
method The paper tackles this problem by formulating it as a minimization of training loss with respect to both trainable parameters and subset of training data, subject to error bounds on the validation set. They use a novel problem formulation and represent it with simplified constraints using the dual of the original training problem. They then develop SELCON, an efficient majorization-minimization algorithm for data subset selection, which admits an approximation guarantee.
result The experiments show that SELCON trades off accuracy and efficiency more effectively than the current state-of-the-art.

DRCS selects a subset of data to minimize worst-case test error under covariate shift.

problem Selecting a subset of data that performs well across different deployment scenarios when data distributions differ.
method DRCS derives an upper bound for the worst-case test error assuming covariate shift and selects instances to minimize this bound.
result DRCS achieves distributionally robust training instance selection.

This paper improves volatility forecasting using dynamic subset selection in genetic programming.

problem Improving accuracy of implied volatility forecasting.
method Dynamic training-subset selection methods applied to genetic programming.
result Dynamic subset selection improves predictive accuracy of genetic programming models.

BWS selects best window subsets for efficient data pruning.

problem Challenges in selecting subsets of large datasets for neural network training.
method Best Window Selection (BWS) by choosing optimal window intervals from ordered sample scores.
result BWS outperforms other methods across various selection ratios and datasets.

A new data augmentation method selects mixed classes based on class distances for better performance.

problem Improving recognition accuracy in object recognition using deep learning.
method Calculates class distances and selects mixed data from suitable classes dynamically.
result Improves recognition performance on general and long-tailed image recognition datasets.

PEAKS selects key training examples incrementally based on prediction error and kernel similarity.

problem Dynamic data selection in deep learning models.
method Prediction Error Anchored by Kernel Similarity (PEAKS) for incremental data selection.
result PEAKS outperforms existing selection strategies and yields better performance returns as training data size grows.

Proposes a sample selection algorithm for fair and robust AI training.

problem Balancing fairness and robustness in AI models, especially with corrupted data.
method Formulates and solves a combinatorial optimization problem for unbiased sample selection, proposing a greedy algorithm.
result Improves fairness and robustness compared to state-of-the-art techniques, both synthetically and on real datasets.

The paper improves self-training in semi-supervised learning by selecting more robust pseudo-labeled data.

problem Improving the reliability of pseudo-labeled data selection in self-training for semi-supervised learning.
method Proposes a multi-objective utility function to select pseudo-labeled data that maximizes reliability, considering model selection, accumulation of errors, and covariate shift uncertainties.
result Robustness towards model choice can lead to substantial accuracy gains in self-training.

A new method selects the best feature selection technique for datasets.

problem Selecting the best feature selection method for unseen datasets.
method Data synthesis, meta features, fuzzy similarity, classification model training.
result Successfully recommended the best feature selection method for five out of eight datasets.

Develops a robust training framework to detect backdoor attacks in DNNs.

problem Vulnerability of DNNs to backdoor attacks by poisoned training data.
method Collider framework selects prominent samples based on geometric structures and coreset selection objective.
result Significantly reduces backdoor success rate in various poisoned datasets.

Learning in adversarial settings is becoming an important task for application domains where attackers may inject malicious data into the training set to subvert normal operation of data-driven technologies. Feature selection has been widely used in machine learning for security applications to improve generalization a…

2018-04-21abs ↗pdf ↗

Model selection on validation data is an essential step in machine learning. While the mixing of data between training and validation is considered taboo, practitioners often violate it to increase performance. Here, we offer a simple, practical method for using the validation set for training, which allows for a conti…

2018-02-16abs ↗pdf ↗

DsDm selects data to improve model performance, avoiding handpicked notions of quality.

problem Selecting data for model training can lead to worse performance than random selection.
method Formulates dataset selection as an optimization problem, maximizing model performance.
result Selected datasets improve language model performance by 2x over baseline methods.

Selecting more uniformly distributed data improves training efficiency and performance.

problem Improving data selection for training large language models (LLMs).
method Established a convergence framework for gradient descent beyond the NTK regime, proving that more uniform data leads to larger minimum pairwise distances and faster training.
result Selecting more uniformly distributed data accelerates training and achieves comparable or better performance in LLMs.

Many image and vision applications require a large amount of data for model training. Collecting all such data at a central location can be challenging due to data privacy and communication bandwidth restrictions. Federated learning is an effective way of training a machine learning model in a distributed manner from l…

2020-01-22abs ↗pdf ↗

Framework improves policy generalizability under biased training data.

problem Learning policies that generalize to a target population from biased training data.
method Characterizes sample selection bias using a selection variable, optimizes minimax value over uncertainty set, derives efficient algorithm.
result Policies generalize to target population, outperform standard methods.

This paper proposes a framework for certifying neural network defenses against data poisoning attacks.

problem Vulnerability of neural networks to data poisoning attacks.
method Random selection based defenses that average predictions on sub-datasets sampled from the training set.
result The certified radius of bagging derived by the framework is tighter than previous work.

Machine learning is essentially the sciences of playing with data. An adaptive data selection strategy, enabling to dynamically choose different data at various training stages, can reach a more effective model in a more efficient way. In this paper, we propose a deep reinforcement learning framework, which we call \em…

2017-02-28abs ↗pdf ↗

A new method for dynamic feature selection outperforms existing approaches.

problem Sequentially selecting features based on current information in machine learning.
method Greedy selection of features based on conditional mutual information, combined with a learning approach for optimization.
result The method outperforms existing feature selection methods in experiments.

A new IL framework estimates invariant predictors with single domain data.

problem Deep networks inherit spurious correlations and fail on unseen domains.
method Assumes multiple labeled domains for higher-level tasks, uses single domain for target task, employs cross-validation for hyperparameter selection.
result Empirically demonstrates effectiveness and correctness of hyperparameter selection.

New algorithms tackle data challenges in physics model selection.

problem Lack of labeled data, high dimensionality, and inapplicability of data augmentation techniques to physics data.
method Two algorithms: feature selection and data augmentation combined with classifiers and stacking ensemble.
result Achieved 90% accuracy on nonlinear structural mechanics classification problem.

The paper explores effective data selection methods for weakly supervised learning.

problem Efficiently selecting a subset of unlabeled data for weakly supervised learning.
method Using a surrogate model to predict labels and selecting a subset of samples for training.
result Data selection can significantly improve model performance over training on the full dataset.

New method estimates marginal likelihood for deep learning models using training data alone.

problem Estimation difficulties in marginal likelihood for model selection in deep learning.
method Scalable marginal likelihood estimation based on Laplace's method and Gauss-Newton approximations.
result Estimate outperforms cross-validation and manual tuning on various datasets.