Marginalization and conditioning for LWF chain graphs
نویسندگان
چکیده
منابع مشابه
Safe Probability: Restricted Conditioning and Extended Marginalization
Updating probabilities by conditioning can lead to bad predictions, unless one explicitly takes into account the mechanisms that determine (1) what is observed and (2) what has to be predicted. Analogous to the observation-CAR (coarsening at random) condition, used in existing analyses of (1), we propose a new prediction task-CAR condition to analyze (2). We redefine conditioning so that it rem...
متن کاملExamining Double Marginalization Effect for Innovative Product Supply Chain
Double marginalization effect refers to the phenomenon that when both upstream and downstream firms have monopolistic power, customers pay higher retail price and firms make less profit than when the supply chain is vertically integrated (Tirole, 1988). Although double marginalization effect has been extensively studied in the context of supply chain management for mature products, very limited...
متن کاملChain graphs for learning
Chain graphs combine directed and undi rected graphs and their underlying mathe matics combines properties of the two. This paper gives a simplified definition of chain graphs based on a hierarchical combination of Bayesian (directed) and Markov (undirected) networks. Examples of a chain graph are multivariate feed-forward networks, cluster ing with conditional interaction between vari able...
متن کاملChain Graphs for Multilevel Models
The present work proposes a possible solution to extend graphical models for correlated data. Particularly, the paper focused on hierarchical data structures, considering two-level random intercept models. The proposed solution allows to use the existing chain graphs theory in a straightforward way. After a brief introduction to multilevel models and a description of the conditional independenc...
متن کاملMarginalization and health geomatics
Marginalized groups have been defined as groups that have been peripheralized from the center of society. Increasing nursing knowledge of marginalized groups and the dynamics of population diversity will enable nurses to better recognize shifting health patterns, plan for utilization of health services, and determine ethnic and cultural differences that exist in marginalized populations. The au...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Annals of Statistics
سال: 2016
ISSN: 0090-5364
DOI: 10.1214/16-aos1451