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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.

168,742 papers · 148 categories

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63126188251 · Jun 202019922001200920172026
48 results for Candidate Selection

The paper addresses biased preferences in candidate selection, proposing a fair and utility-maximizing algorithm.

problem Selecting candidates for institutions with biased preferences and limited capacities.
method An algorithm that considers group fairness and true utility, proving near-optimal results under distributional assumptions.
result The proposed algorithm achieves near-optimal group fairness and near-maximal true utility, even in biased settings.

Prophet predicts device qualities for FL to reduce training latency.

problem Bad candidate-selection leads to large training and reporting latency in FL.
method Each device predicts its own training and reporting phases using LSTM. The algorithm is implemented with DRL.
result The proposed approach outperforms reactive algorithms in real-world experiments.

Online method selects candidates from data streams, ensuring irreversible decisions.

problem Conformal selection's incompatibility with irreversible decisions in online scenarios.
method Online Conformal Selection with Accept-to-Reject Changes (OCS-ARC) incorporating online Benjamini-Hochberg procedure.
result OCS-ARC controls FDR at or below nominal level, improving selection power.

Improves algorithm selection for thousands of candidates using dyadic features.

problem Selecting the best algorithm from a large set of candidates for specific problems.
method Proposes extreme algorithm selection (XAS) with dyadic feature representation.
result Improves significantly over current state of the art in various metrics.

Bayesian-guided method selects optimal design from large candidate pool.

problem Optimizing complex structures with high-fidelity evaluations.
method Bayesian active learning with surrogate modeling.
result Optimal design identified with minimal oracle evaluations.

This work develops scalable model selection methods with fast update and selection.

problem Efficient model selection for large pools of candidate models.
method Isolated model embedding, which supports asymptotically fast update and selection.
result Standardized Embedder achieves competitive model selection performances.

A method selects candidates based on predictions with statistical control.

problem Screening candidates for resource-intensive steps like hiring or drug discovery.
method Wraps around any prediction model to produce a subset of candidates with controlled false selection rate.
result Empirically demonstrates selection of candidates whose predictions exceed a data-dependent threshold.

A new model shows fairness mechanisms can improve selection utility even without implicit bias.

problem Improving selection fairness without introducing a utility trade-off.
method A model with latent quality and group-dependent variance, comparing fairness mechanisms to group-oblivious selection.
result Demographic parity always increases selection utility, while γγ-rules weakly increase it.

Differentially Private algorithms often need to select the best amongst many candidate options. Classical works on this selection problem require that the candidates' goodness, measured as a real-valued score function, does not change by much when one person's data changes. In many applications such as hyperparameter o…

2018-11-19abs ↗pdf ↗

Paper presents algorithm for optimal job selection with dynamic scoring.

problem Optimal job assignment in a sequential selection process with dynamic scores.
method Developed using dynamic programming, with extensions for partial and no-information cases.
result Algorithm allows for optimal job assignment with limited information.

Meta-algorithm selects optimal model complexity in RL with function approximation.

problem Selecting the right model complexity for reinforcement learning with function approximation.
method Meta-algorithm that successively rejects complex models using a statistical test.
result Adapts to optimal complexity with improved regret bounds compared to best candidate.

Estimates variance function using aggregation methods in regression models.

problem Estimating variance function in regression models.
method Two-step procedure involving model selection or convex aggregation, using two independent samples.
result Consistency of the proposed method in L2 error for MS and C aggregations.

While model selection is a well-studied topic in parametric and nonparametric regression or density estimation, selection of possibly high-dimensional nuisance parameters in semiparametric problems is far less developed. In this paper, we propose a selective machine learning framework for making inferences about a fini…

2019-11-05abs ↗pdf ↗

This paper improves model selection with cross-validation using domain knowledge.

problem Improving model selection with cross-validation risk estimation.
method Establishes distribution-free deviation bounds using VC dimension, formalizes Learning Spaces based on domain knowledge.
result Enhanced generalization through selection of candidate models based on domain knowledge.

Selective clustering annotated using modes of projections (SCAMP) is a new clustering algorithm for data in Rp\mathbb{R}^p. SCAMP is motivated from the point of view of non-parametric mixture modeling. Rather than maximizing a classification likelihood to determine cluster assignments, SCAMP casts clustering as a searc…

2018-07-26abs ↗pdf ↗

Balances and eliminates base algorithms in bandits and RL to bound total regret.

problem Model selection in bandits and reinforcement learning with unknown optimal regret.
method Balances and eliminates base algorithms based on candidate regret bounds.
result Total regret bound is the best valid candidate regret bound times a small multiplicative factor.

PS-DME evaluates model performance and reliability after data-dependent selection.

problem Evaluating model performance and reliability when data is used for selection and evaluation.
method Post-selection distributional model evaluation (PS-DME) using e-values to control false coverage rate.
result PS-DME provides reliable comparison of model configurations across different reliability levels.

Master algorithm selects best contextual bandit from a collection.

problem Model selection in stochastic contextual bandit setting.
method Random selection with probability adjustment based on comparison of cumulative rewards.
result Achieves the same regret rate as the best candidate in a collection of black-box algorithms.

A fair policy for hiring candidates from different groups is proposed in a linear contextual bandit problem.

problem Selecting candidates from different sensitive groups in a fair manner.
method A greedy policy that constructs a ridge regression estimate and computes relative rank using empirical cumulative distribution function.
result The greedy policy achieves fair pseudo-regret of order dT\sqrt{dT} after TT rounds, satisfying demographic parity.

New algorithms for model selection in off-policy evaluation of reinforcement learning.

problem Hyperparameter tuning for off-policy evaluation methods in reinforcement learning.
method Developed new model-free and model-based selectors with theoretical guarantees and a new experimental protocol.
result New model-free selector, LSTD-Tournament, demonstrates promising empirical performance.

Develops a method for identifying structured dynamical systems from data.

problem Identifying structured dynamical systems from undersampled and noisy data.
method Sparse least-squares fitting via 12\ell_1-\ell_2 optimization with the alternating direction method of multipliers.
result The method is stable and successful under certain conditions, as shown by theoretical guarantees and computational results.

A game-theoretic approach selects features by testing their marginal contributions.

problem Feature selection in econometric and statistical models.
method A coalitional game where features are players and payoff is model performance. Hypothesis test decides feature relevance.
result The approach significantly outperforms existing methods in simulations.

A novel method optimizes variable-stiffness structures for better strength and weight.

problem Optimizing variable-stiffness structures for higher strength and lighter weight.
method A novel multi-stage concurrent topology optimization scheme combining DMO, S-BPTO, and CFAO.
result The method ensures better fibre angle convergence and stable optimization.

Job recommendation has traditionally been treated as a filter-based match or as a recommendation based on the features of jobs and candidates as discrete entities. In this paper, we introduce a methodology where we leverage the progression of job selection by candidates using machine learning. Additionally, our recomme…

2019-05-28abs ↗pdf ↗

New method speeds up model selection for complex scientific tasks.

problem Exhaustive model selection is computationally infeasible for large model spaces.
method Branch-and-bound algorithm with non-monotonic criteria.
result Guaranteed identification of optimal models with significant computational speedups.

PS framework selects best policy from library for CSO problems.

problem Policy selection in CSO with heterogeneous performance across covariate space.
method PS framework constructs library of candidate policies and learns a meta-policy to select the best one.
result PS consistently outperforms best single policy in heterogeneous CSO problems.

This work improves molecular design by efficiently selecting diverse candidate molecules.

problem Designing molecules that satisfy multiple conflicting objectives.
method A modular 'generate-then-optimize' framework using generative models and a novel acquisition function.
result Significant improvements in sample efficiency across synthetic and application-driven tasks.

Develops model selection for bandits balancing adversarial and stochastic guarantees.

problem Model selection in bandit scenarios with simultaneous adversarial and stochastic high-probability regret.
method Nested policy classes, balanced candidate regret bounds, mis-specification tests.
result Best of both world guarantees in linear bandits with simultaneous adversarial and stochastic environments.

Efficiently selects predictors in sparse regression without approximations.

problem High computational cost in subset selection for sparse regression.
method Conditional uncorrelation formula and efficient non-approximate method.
result Significant reduction in computational complexity for subset selection.

Investigates model selection challenges in heterogeneous treatment effect estimation.

problem Lack of validation metrics for choosing the best model in treatment effect estimation.
method Empirical investigation of different model selection criteria.
result Complex interplay between selection strategies, estimators, and data.

Study certifies missed relevant items in candidate generation with audit labels.

problem Certify missed relevant items in candidate generation with audit labels.
method Characterizes label complexity, develops exact finite-sample toolkit.
result Excluded-pool auditing is minimax rate-optimal for missed-mass certification.

Identifies the best-performing algorithm from a set of candidates.

problem Finding the best-performing machine learning algorithm from benchmark performance.
method Subset selection for multinomial distributions, providing asymptotic and finite-sample schemes.
result Significantly improved methods for identifying the best-performing algorithm.

Optimizes ad pruning in sponsored search systems using reinforcement learning.

problem How to efficiently select top K ads from N candidates to maximize revenue.
method Model-free reinforcement learning approach considering downstream as a black-box environment.
result Remarkable improvements in revenue achieved through reinforcement learning.

Run2Survive uses survival analysis for algorithm selection, outperforming traditional methods.

problem Handling censored runtime data in algorithm selection.
method Decision-theoretic approach leveraging survival analysis for censored data.
result Run2Survive outperforms state-of-the-art AS approaches in experiments.

Framework evaluates AI proposals for drug discovery, finds no LLM advantage.

problem No principled framework exists for evaluating AI-guided scientific selection under budget constraints.
method Formally verified metric (BSDS/DQS) penalizes false discoveries and excessive abstention.
result LLMs provide no marginal value over existing classifiers in drug discovery.

Framework synthesizes programs for simulating complex models and estimating parameters.

problem Parameter estimation for complex models requires manual encoding of fixed model structures.
method Combines LLMs for program synthesis with neural simulation-based inference.
result Identifies plausible model families from open-ended prompts with high accuracy.

Proposes a max-utility arm selection strategy for reducing cumulative regret in sequential query recommendations.

problem Reduces cumulative regret in sequential query recommendations for closed loop interactive learning settings.
method Proposes a max-utility arm selection strategy based on the maximum utility of arms.
result Improves cumulative regret substantially compared to baseline algorithms and random selection.