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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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295988117 · Jun 202019922001200920182026
48 results for SNP clustering

Method clusters SNPs to improve detection of disease-associated variants.

problem Over-conservative SNP-wise approach in GWASs.
method Model-based clustering of SNPs into three clusters, borrowing information across SNPs.
result Proposed method outperforms traditional SNP-wise approach in controlling false discovery rate and sensitivity.

SAERMA combines deep learning and rule mining to identify SNP interactions.

problem Identifying significant SNPs and their interactions in complex diseases.
method Stacked Autoencoder Rule Mining Algorithm (SAERMA) integrating deep learning and association rule mining.
result Achieved high classification accuracy (77% AUC, 77% SE, 68% SP) with 100 units.

This paper presents a method for efficient density estimation in nonlinear systems.

problem Accurate representation of non-Gaussian distributions in nonlinear dynamical systems is challenging.
method Uses Seminonparametric (SNP) densities with probabilists' Hermite polynomial basis and Monte Carlo approximation for maximum likelihood estimation.
result Demonstrates that the method can accurately capture non-Gaussian density structure and compute quantiles using fewer samples than raw Monte Carlo.

Discovers discriminative patterns in two-class datasets.

problem Discovering patterns that occur more frequently in one class than the other.
method Proposes SSDPS algorithm with an original enumeration strategy exploiting anti-monotonicity.
result SSDPS outperforms other algorithms in terms of efficiency and pattern generation.

Kernel method detects higher order interactions in multi-view data for schizophrenia.

problem Detecting higher order interactions in multi-view biological data.
method Kernel method on reproducing kernel Hilbert space (RKHS) with mixed-effects linear model.
result Identified 13 triplets with significant correlations to hippocampal volume in schizophrenia.

New method analyzes complex multivariate pathways in high-dimensional data.

problem High-dimensional mediation analysis of multivariate exposures, mediators, and outcomes.
method Simultaneous variable selection, indirect effect matrix estimation, and prediction of multivariate outcomes.
result Identifies biologically interpretable genetic-neural-cognitive pathways.

We have developed a strategy for the analysis of newly available binary data to improve outcome predictions based on existing data (binary or non-binary). Our strategy involves two modeling approaches for the newly available data, one combining binary covariate selection via LASSO with logistic regression and one based…

2008-05-21abs ↗pdf ↗

A new method for joint eQTL mapping and gene network estimation.

problem Discovering SNP-gene relationships and gene-gene relationships in gene expression regulation.
method L1-2 regularized multi-task graphical lasso (L1-2 GLasso).
result Competitive performance on capturing true sparse structures of eQTL mapping and gene network.

A multilevel model combines genetic and imaging data for AD diagnosis.

problem Classification from multimodal genetic and brain imaging data with unbalanced contributions.
method Multilevel model with structured penalties for joint effects between modalities.
result The model reveals relationships between genes, brain regions, and disease status.

ASCEND discovers causal relationships in multi-omics data by leveraging known hierarchical structure.

problem Causal inference in high-dimensional multi-omics data, especially when ignoring the hierarchical structure.
method Two-tiered divide-and-conquer strategy with ancestral conditioning sets.
result Achieves polynomial-time complexity and accurately recovers ancestral relationships.

Paper proposes inference method for high-dimensional censored quantile regression.

problem Identifying heterogeneous effects of high-dimensional genetic biomarkers on survival outcomes.
method Combines low-dimensional model estimates based on multi-sample splittings and variable selection.
result Proposed estimator is consistent and asymptotically follows a Gaussian process.

Proposes a method to predict cluster number and cluster representatives using cluster stability analysis.

problem Determining the number of clusters in a dataset.
method Analyzes cluster stability using Monte-Carlo simulation to predict cluster number and find cluster representatives.
result Significant improvement in predicting cluster numbers and cluster composition in large datasets.

Mode clustering is a nonparametric method for clustering that defines clusters using the basins of attraction of a density estimator's modes. We provide several enhancements to mode clustering: (i) a soft variant of cluster assignment, (ii) a measure of connectivity between clusters, (iii) a technique for choosing the …

2014-06-06abs ↗pdf ↗

This paper introduces a persistence metric to compare clustering solutions with different numbers of clusters.

problem Determining the true number of clusters in a dataset when prior knowledge is lacking.
method The paper introduces a persistence metric based on the maximum over two-norms of all cluster-covariance matrices.
result The persistence metric accurately identifies clustering solutions with the true number of clusters.

In many practical applications of clustering, the objects to be clustered evolve over time, and a clustering result is desired at each time step. In such applications, evolutionary clustering typically outperforms traditional static clustering by producing clustering results that reflect long-term trends while being ro…

2011-04-11abs ↗pdf ↗