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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.

169,181 papers · 148 categories

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188376564752 · Jun 202019922001200920182026
48 results for multiple experiments

Bayesian Experience Reuse improves learning from multiple experts.

problem Learning from multiple experts with conflicting goals.
method Bayesian neural networks with shared features to model uncertainty and derive a probability distribution over expert models.
result BERS method effectively samples demonstrations from the derived distribution to reuse them in new tasks.

Proposes a method to estimate and infer networks from multiple high-dimensional point processes.

problem Estimating and inferring networks from multiple high-dimensional point processes with shared and unique structures.
method Joint estimation procedure for networks of high-dimensional point processes incorporating weights to encourage similarity.
result Powerful hierarchical multiple testing procedure for edges of all estimated networks, controlling family-wise error rate.

The paper tackles off-policy learning from multiple loggers.

problem Learning policies from multiple historical logs in real-world applications.
method Uses counterfactual estimators to learn policies from multi-logger data, analyzes generalization error, and introduces a constrained optimization problem.
result The proposed methods achieve better performance than state-of-the-arts.

Paper proposes PRR network for better experience reuse in reinforcement learning.

problem Efficient experience reuse in reinforcement learning across multiple granularities.
method Proposes PRR network trained on multi-level architecture to extract and store experience.
result PRR network leads to better experience reuse and improved performance.

Translating potential disease biomarkers between multi-species 'omics' experiments is a new direction in biomedical research. The existing methods are limited to simple experimental setups such as basic healthy-diseased comparisons. Most of these methods also require an a priori matching of the variables (e.g., genes o…

2010-12-15abs ↗pdf ↗

Recurrent Neural Networks (RNNs) have long been recognized for their potential to model complex time series. However, it remains to be determined what optimization techniques and recurrent architectures can be used to best realize this potential. The experiments presented take a deep look into Hessian free optimization…

2015-10-16abs ↗pdf ↗

BoTier optimizes experiments by balancing multiple objectives hierarchically.

problem Balancing multiple competing objectives in scientific experiments.
method Composite objective that flexibly represents a hierarchy of preferences over outcomes and parameters.
result Demonstrates robust applicability across various use cases and seamless integration.

New algorithms control FDX while achieving more power in online multiple testing.

problem Problems with previous online multiple testing methods, including high FDX and low power.
method Developed new dynamic algorithms that adjust testing levels based on accumulated wealth.
result SupLORD algorithm achieves higher power and FDR control in synthetic experiments.

New findings show single-treatment effects are unidentifiable in factorial experiments.

problem Identifying the effect of a single intervention in factorial experiments.
method Formalized sufficient conditions for the identifiability of single-treatment effects and developed nonparametric sharp bounds.
result Researchers must justify assumptions for extrapolating single-treatment effects.

Recent research on multiple kernel learning has lead to a number of approaches for combining kernels in regularized risk minimization. The proposed approaches include different formulations of objectives and varying regularization strategies. In this paper we present a unifying general optimization criterion for multip…

2010-05-04abs ↗pdf ↗

CausalRegNet generates accurate data for gene perturbation experiments, improving CSL methods.

problem Assessing and selecting causal structure learning methods in gene perturbation experiments.
method CausalRegNet, a multiplicative effect structural causal model, generates accurate observational and interventional data.
result CausalRegNet generates more accurate distributions and scales better than current simulation frameworks.

New fair regression method improves fairness in chronic kidney disease classification.

problem Mitigating societal bias in health care for multiple groups.
method Penalized fair regression framework for multiple groups, with penalties for true positive rate disparity.
result Achieves fairness-accuracy frontier beyond existing methods in simulations and real-world data.

The statistical comparison of multiple algorithms over multiple data sets is fundamental in machine learning. This is typically carried out by the Friedman test. When the Friedman test rejects the null hypothesis, multiple comparisons are carried out to establish which are the significant differences among algorithms. …

2015-05-09abs ↗pdf ↗

MCP learns reusable skills for complex tasks by combining simple ones.

problem Learning complex tasks with many skills requires impractical amounts of data.
method Factorizes skills into primitives that can be combined multiplicatively.
result MCP can learn and reuse skills for novel tasks from pre-training.

Framework for generating multiple clusterings from multi-view data.

problem Challenges in finding optimal clustering criteria and handling incomplete multi-view data.
method DiMVMC framework that optimizes multiple decoder deep networks to complete data views and generate shared representations.
result DiMVMC outperforms state-of-the-art competitors in generating multiple clusterings with high diversity and quality.

Learning linear combinations of multiple kernels is an appealing strategy when the right choice of features is unknown. Previous approaches to multiple kernel learning (MKL) promote sparse kernel combinations to support interpretability and scalability. Unfortunately, this 1-norm MKL is rarely observed to outperform tr…

2010-02-27abs ↗pdf ↗

Introduces Rashomon Capacity to measure predictive multiplicity in probabilistic classifiers.

problem Predictive multiplicity in classification models leading to unjustified decisions.
method Introduces Rashomon Capacity, a metric for probabilistic classifiers, and provides a rigorous derivation.
result Rashomon Capacity captures nuanced score variations and provides strategies for disclosing conflicting models.

We present a domain-general account of causation that applies to settings in which macro-level causal relations between two systems are of interest, but the relevant causal features are poorly understood and have to be aggregated from vast arrays of micro-measurements. Our approach generalizes that of Chalupka et al. (…

2015-12-25abs ↗pdf ↗

The paper clusters hypergraphs to find diverse and experienced groups based on past experiences.

problem Finding diverse and experienced groups with respect to past experiences.
method Regularized edge-based hypergraph clustering objective with a 2-approximation algorithm.
result Demonstrates an efficient 2-approximation algorithm for clustering hypergraphs.

Feature extraction and dimension reduction for networks is critical in a wide variety of domains. Efficiently and accurately learning features for multiple graphs has important applications in statistical inference on graphs. We propose a method to jointly embed multiple undirected graphs. Given a set of graphs, the jo…

2017-03-10abs ↗pdf ↗

We generalise the problem of inverse reinforcement learning to multiple tasks, from multiple demonstrations. Each one may represent one expert trying to solve a different task, or as different experts trying to solve the same task. Our main contribution is to formalise the problem as statistical preference elicitation,…

2011-06-18abs ↗pdf ↗

T-Rex selector selects variables fast and controls FDR in high-dimensional data.

problem Variable selection in high-dimensional data with FDR control.
method Fused solutions of early terminated random experiments.
result FDR control at target level with high variable selection power.

Study on learning to defer with multiple experts using new surrogate losses.

problem Learning to defer with multiple experts in a machine learning context.
method Introducing a new family of surrogate losses for the multiple-expert setting, proving HH-consistency bounds, and designing learning algorithms.
result Explicit guarantees for new learning to defer algorithms based on minimization of these surrogate losses.

MPPCCA extracts multiple causal relationships from multivariate time series.

problem Extracting multiple causal relationships from multivariate time series data.
method Mixture of probabilistic partial canonical correlation analysis (MPPCCA) combined with an expectation-maximization (EM) algorithm.
result MPPCCA accurately estimates multiple partial canonical correlations in synthetic and real datasets.

Recently neural networks and multiple instance learning are both attractive topics in Artificial Intelligence related research fields. Deep neural networks have achieved great success in supervised learning problems, and multiple instance learning as a typical weakly-supervised learning method is effective for many app…

2016-10-08abs ↗pdf ↗

New adversarial training methods generate multiplicative perturbations for robust DNN training.

problem Training Deep Neural Networks with adversarial examples to improve robustness.
method Proposes xAT and xVAT, generating multiplicative perturbations for robust training.
result xAT and xVAT match or outperform state-of-the-art classification accuracies and are faster.

New algorithms and guarantees for multiple-source adaptation.

problem Improving model performance on target mixtures from multiple sources.
method Normalized solutions with theoretical guarantees, algorithms for distribution-weighted combination.
result Our algorithm outperforms competing approaches by producing a robust model.

Optimal algorithm reduces regret in adversarial bandit problem with multiple plays.

problem Minimizing regret in adversarial bandit problem with multiple plays.
method Introducing a new expert advice algorithm for multiple-play setting, achieving minimax optimal regret bounds.
result Minimizes regret asymptotically to the best switching strategy with optimal bounds.

This paper optimizes search experiences in two-sided marketplaces by balancing multiple conflicting metrics.

problem Balancing conflicting business metrics in two-sided marketplaces like eBay and Etsy.
method Joint optimization of market-level metrics using Evolutionary Strategies.
result Demonstrated effectiveness of the proposed method on Etsy data.

Proposes a new scoring function for linear classifiers to improve object positioning in feature space.

problem Lack of information about relative positions of recognized objects in feature space.
method Calculates a scoring function based on object distance from decision boundary and class centroid.
result Demonstrates effectiveness of the proposed method compared to other ensemble algorithms on multiple datasets.