A Symmetric Random Scan Collapsed Gibbs Sampler for Fully Bayesian Variable Selection with Spike-and-Slab Priors
对称随机扫描坍缩 Gibbs 抽样器:尖峰-平板先验下的全贝叶斯变量选择AI 解读 ↓
本页整理公开书目信息,不生成学术质量评分。AI 解读根据题名及所注明的摘要或原文片段生成,未完成全文核验,可能有误;具体假设、证明与结论请核对原文。摘要保留来源文本,未经模型改写。
DOI 首次登记不等于接收或发表日期。部分更正、评论等条目没有独立摘要;缺少可靠材料时保留待补状态。
本页为预印本版本;arXiv 收录、作者填写的期刊信息以及作者既有发表经历,都不单独证明本篇已接收。作者发表记录按 OpenAlex 身份与完整姓名、本站覆盖期刊 ISSN 及正式卷期核对,只展示已核实例,档案仍可能误合并。
引用量采用 OpenAlex 单条关联记录,不合计多个记录;关联记录可能包含正式发表版本,不等于此版本单独引用。缺失不视为零,引用指标不代表论文质量。
关注作者按书目中的完整姓名匹配,同名和姓名变体需人工辨别。相关论文先按共享细分方向和具体方法排列,再参考通用方法与发表日期。
AI 根据所提供的论文材料归类:摘要主题为贝叶斯变量选择与 MCMC 抽样算法,属于统计计算方法,未涉及所给微观、宏观或金融计量细分领域的文本依据。
对称随机扫描坍缩 Gibbs 抽样器:尖峰-平板先验下的全贝叶斯变量选择AI 解读 ↓
正在核对关联版本…
正在核对对应版本的资源…
We introduce a symmetric random scan Gibbs sampler for scalable Bayesian variable selection that eliminates storage of the full cross-product matrix by computing required quantities on-the-fly. Data-informed proposal weights, constructed from marginal correlations, concentrate sampling effort on promising candidates while a uniform mixing component ensures theoretical validity. We provide explicit guidance for selecting tuning parameters based on the ratio of signal to null correlations, ensuring adequate posterior exploration. The posterior-mean-size selection rule provides an adaptive alternative to the median probability model that automatically calibrates to the effective signal density without requiring an arbitrary threshold. In simulations with one hundred thousand predictors, the method achieves sensitivity of 1.000 and precision above 0.76. Application to a genomic dataset studying riboflavin production in Bacillus subtilis identifies six genes, all validated by previous studies using alternative methods. The underlying model combines a Dirac spike-and-slab prior with Laplace-type shrinkage: the Dirac spike enforces exact sparsity by setting inactive coefficients to precisely zero, while the Laplace-type slab provides adaptive regularization for active coefficients through a local-global scale mixture.