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48 results for discovery algorithms

We introduce interactive structure discovery, a generic framework that encompasses many interactive learning settings, including active learning, top-k item identification, interactive drug discovery, and others. We adapt a recently developed active learning algorithm of Tosh and Dasgupta (2017) for interactive structu…

2019-06-05abs ↗pdf ↗

ASD algorithm maximizes model estimates by adaptively labeling points.

problem Maximizing model estimates through adaptive labeling of points in a sequential decision-making problem.
method Formulated a general information-directed sampling (IDS) algorithm with theoretical guarantees for linear, graph, and low-rank models.
result IDS algorithm outperforms in both simulation and real-data experiments for discovering chemical reaction conditions.

Investment strategy developed using causal discovery algorithms in equity markets.

problem Lack of actionable causal relationships in large equity markets.
method Causal discovery algorithms applied to equity market data.
result Causal discovery algorithms can uncover actionable causal relationships in equity markets, leading to profitable investment outcomes.

LCD improves causal discovery in high-dimensional gene data.

problem Predicting causal effects in large-scale gene expression data.
method Local Causal Discovery (LCD) with practical estimators, ICP algorithm inspiration, preselection method, and statistical tests.
result LCD estimator closely matches ICP's accuracy but is simpler and faster.

Paper discovers structural dynamics equations from only acceleration data.

problem Discovering equations from only acceleration measurements in structural dynamics.
method Library-based approach with Approximate Bayesian Computation (ABC) prioritizing parsimonious models.
result Efficacy demonstrated in four structural dynamics examples, including linear and nonlinear systems.

Differentiable causal discovery methods perform robustly under model violations.

problem Causal discovery algorithms struggle with real-world data due to unverifiable causal assumptions.
method Benchmarked differentiable causal discovery methods under eight model assumption violations.
result Differentiable causal discovery methods exhibit robust performance under Structural Hamming Distance and Structural Intervention Distance metrics.

Cluster-DAGs improve causal discovery with prior knowledge.

problem Finding cause-effect relationships from high-dimensional data.
method Cluster-DAGs as prior knowledge framework, modified constraint-based algorithms Cluster-PC and Cluster-FCI.
result Cluster-PC and Cluster-FCI outperform baselines without prior knowledge.

A new algorithm for robust causal discovery in small sample sizes.

problem Limited data leads to weak conditional independence tests in causal discovery.
method Proposes a kk-PC algorithm that bounds conditioning set size for robust causal discovery.
result The kk-PC algorithm enables more robust causal discovery in small sample sizes.

MissDAG addresses causal discovery with missing data using imputation and EM.

problem Causal discovery with missing data in incomplete observational studies.
method MissDAG uses EM framework to maximize likelihood of visible data, leveraging ANMs and Monte Carlo EM for approximations.
result MissDAG outperforms two-step imputation and causal discovery methods.

L2D-CD learns to defer expert recommendations in causal discovery.

problem Combining expert knowledge with data-driven results in causal discovery when expert recommendations may contradict data.
method Adapting learning-to-defer algorithms for pairwise causal discovery, L2D-CD learns a deferral function to select between expert recommendations and data-driven methods.
result L2D-CD outperforms both causal discovery methods and the expert used in isolation, identifying domains where the expert's performance is strong or weak.

Private online FDR control for adaptive testing under differential privacy.

problem Controlling false discoveries in adaptive multiple hypothesis testing with privacy constraints.
method Private online algorithms based on non-private results, ensuring privacy and statistical performance.
result Strong guarantees for privacy and statistical performance in FDR and power.

SubTSBR tackles noisy data for differential equation discovery.

problem Discovering differential equations from noisy or outlier-laden data.
method Subsampling-based threshold sparse Bayesian regression (SubTSBR) with subsampling size and number of subsamples.
result SubTSBR outperforms TSBR in accuracy for differential equation discovery.

Causal discovery algorithms can help generate legal arguments.

problem Leveraging causal discovery algorithms in legal decision-making.
method Prepared a legal dataset, annotated with 17 legal concepts, applied causal discovery algorithms, and quantified degrees of belief.
result Some causal relationships help generate viable legal arguments.

TimeGraph creates synthetic datasets for robust time-series causal discovery.

problem Lack of reliable synthetic benchmark datasets for robust time-series causal discovery.
method Developed comprehensive synthetic datasets with temporal properties, including trends, seasonality, and noise.
result Demonstrated significant variations in algorithm performance under realistic temporal conditions.

MEC-IP uses IP to efficiently find MECs in BNs from observational data.

problem Discovering Markov Equivalent Classes (MECs) in Bayesian Networks (BNs) efficiently.
method Clique-focusing strategy and EMSG for MEC discovery via Integer Programming.
result Significant reduction in computational time and improved accuracy.

New PCstar algorithm discovers causal structure of max-linear Bayesian networks.

problem Discovering causal structure in max-linear Bayesian networks due to non-faithfulness.
method PC algorithm modified with CC^\ast-separation assumptions.
result PCstar algorithm can orient additional edges not possible with standard PC algorithm.

This work tackles causal graph discovery with stochastic interventions to minimize the number of interventions.

problem Discovering the true causal graph from observational data with limited interventions.
method Proposes a stochastic intervention model and studies verification and search problems with approximation algorithms.
result Provides approximation algorithms with competitive ratios for verification and search problems.

The gold standard for discovering causal relations is by means of experimentation. Over the last decades, alternative methods have been proposed that can infer causal relations between variables from certain statistical patterns in purely observational data. We introduce Joint Causal Inference (JCI), a novel approach t…

2016-11-30abs ↗pdf ↗

This paper presents a new open source Python framework for causal discovery from observational data and domain background knowledge, aimed at causal graph and causal mechanism modeling. The 'cdt' package implements the end-to-end approach, recovering the direct dependencies (the skeleton of the causal graph) and the ca…

2019-03-06abs ↗pdf ↗

Improved time series causal discovery with bootstrap aggregation and confidence measures.

problem Uncertainty estimation in time series causal discovery.
method Bootstrap aggregation and confidence measures for time series causal discovery.
result Bagged-PCMCI+ improves precision and recall compared to PCMCI+.

Paper proposes NAC for efficient network discovery in incomplete networks.

problem Efficiently discover vertices with specific attributes in incomplete networks.
method Formulates network discovery as a reinforcement learning problem, uses deep reinforcement learning with task-specific network embeddings.
result Offline planning leads to significantly improved performance compared to online discovery algorithms.

The paper integrates statistical significance and discriminative power in pattern discovery.

problem Discovering actionable patterns that meet rigorous statistical significance and discriminative power criteria.
method Integrates statistical significance and discriminative power criteria into state-of-the-art algorithms.
result Improves discriminative power and statistical significance of discovered patterns without quality deterioration.

Develops algorithm to find subgroups with different treatment effects in HIV patients.

problem Estimating treatment effects in EHR data with challenges like time-varying confounding.
method SDLD algorithm combining generalized interaction tree and longitudinal targeted maximum likelihood estimation.
result Identifies subgroups of HIV patients at higher risk of weight gain with dolutegravir-containing ARTs.

New method for causal discovery using peeling algorithms for various data types.

problem Challenges in causal discovery due to unmeasured confounders.
method Two peeling algorithms (bottom-up and top-down) for causal discovery with generalized structural equation models.
result Valid discovery of causal relationships and parent-child effects in diverse data types.

LDP speeds up causal discovery by partitioning, improving VAS recall and runtime.

problem Hard causal discovery in nonparametric settings with exponential complexity.
method Local Discovery by Partitioning (LDP) for causal inference around exposure-outcome pairs.
result LDP yields less biased and more precise estimates than baseline methods.

The paper improves experimental design by weighting diversity metrics with quality, leading to more diverse and effective discoveries.

problem Existing experimental design techniques favor exploitation over exploration, leading to local optima and insufficient diversity.
method The paper extends Vendi scores to account for quality and applies them to various experimental design problems.
result Quality-weighted Vendi scores allow for better balance between quality and diversity, resulting in 70%-170% more effective discoveries.

New algorithm learns causal structures from multiple overlapping datasets.

problem Discovering causal relations from multiple datasets with overlapping variables.
method Adapting and extending bivariate causal discovery algorithms to handle overlapping datasets.
result Outperforms previous approaches on synthetic and real data.

Generates synthetic manufacturing data for causal discovery benchmarking.

problem Lack of suitable real data for validating causal discovery algorithms.
method Distributional random forests for estimating conditional distributions.
result Semisynthetic manufacturing data adheres to a causal model.

Paper proposes knockoff-based methods to simplify deep neural networks by controlling false discovery rates.

problem High-dimensional deep neural networks with many irrelevant parameters and inputs.
method Knockoff methods combined with regularized neural networks for variable screening.
result Proposed algorithms show satisfactory performance in controlling false discovery rates.

We use the score function for causal discovery, tackling challenges with hidden variables.

problem Causal discovery from observational data with hidden variables.
method Fine-tuning identifiability results, establishing conditions for inferring causal relations from the score, proposing a flexible algorithm.
result Empirical validation of the proposed algorithm for causal discovery on linear, nonlinear, and latent variable models.