Network inference from grouped observations using hub models

Yunpeng Zhao, Charles Weko

Research output: Contribution to journalArticle

Abstract

In medical research, economics, and the social sciences data frequently appear as subsets of a set of objects. Over the past century a number of descriptive statistics have been developed to infer network structure from such data. However, these measures lack a generating mechanism that links the inferred network structure to the observed groups. To address this issue, we propose a model-based approach called the Hub Model which assumes that every observed group has a leader and that the leader has brought together the other members of the group. The performance of Hub Models is demonstrated by simulation studies. We apply this model to the characters in a famous 18th century Chinese novel.

Original languageEnglish (US)
Pages (from-to)225-244
Number of pages20
JournalStatistica Sinica
Volume29
Issue number1
DOIs
StatePublished - Jan 1 2019

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Keywords

  • Affiliation network
  • Dream of the Red Chamber
  • Expectation-maximization algorithm
  • Half weight index
  • Social network analysis

ASJC Scopus subject areas

  • Statistics and Probability
  • Statistics, Probability and Uncertainty

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