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شبکه بیزی مقاوم×میانگین‌گیری مدل بیزی×
حوزهبیزیبیزی
خانوادهBayesian methodsBayesian methods
سال پیدایش1991-20001999
پدیدآورFabio Cozman (credal networks); Peter Walley (imprecise probabilities)Hoeting, Madigan, Raftery & Volinsky
نوعprobabilistic graphical model with set-valued probabilitiesBayesian model averaging
منبع بنیادینCozman, F. G. (2000). Credal networks. Artificial Intelligence, 120(2), 199-233. DOI ↗Hoeting, J. A., Madigan, D., Raftery, A. E. & Volinsky, C. T. (1999). Bayesian Model Averaging: A Tutorial. Statistical Science, 14(4), 382–401. link ↗
نام‌های دیگرRBN, credal network, imprecise Bayesian network, sensitivity analysis in Bayesian networksBMA, Bayesian model combination, Bayesian Model Ortalaması (BMA)
مرتبط55
خلاصهA Robust Bayesian Network extends a classical Bayesian network by replacing each precise conditional probability table with a set of allowable probability distributions — called a credal set. Instead of a single probability for each query, inference returns a range of probabilities, honestly reflecting uncertainty about the model's numeric parameters while preserving the interpretable directed-acyclic-graph structure.Bayesian Model Averaging (BMA), formalised as a tutorial by Hoeting, Madigan, Raftery and Volinsky in 1999, addresses model uncertainty by averaging over all plausible model specifications rather than selecting a single best model. Each candidate model receives a posterior probability that reflects how well it fits the data given a prior, and predictions or coefficient estimates are formed as weighted averages across the entire model space. This approach reduces the bias and overconfidence that arise when a single selected model is treated as the true one.
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ScholarGateمقایسهٔ روش‌ها: Robust Bayesian Network · Bayesian Model Averaging. بازیابی‌شده در 2026-06-15 از https://scholargate.app/fa/compare