학술논문

Weakly supervised clustering: learning fine-grained signals from coarse labels.
Document Type
Journal
Author
Wager, Stefan (1-STF-S) AMS Author Profile; Blocker, Alexander (1-GOOGLE5) AMS Author Profile; Cardin, Niall (1-GOOGLE5) AMS Author Profile
Source
The Annals of Applied Statistics (Ann. Appl. Stat.) (20150101), 9, no.~2, 801-820. ISSN: 1932-6157 (print).eISSN: 1941-7330.
Subject
62 Statistics -- 62P Applications
  62P25 Applications to social sciences
Language
English
Abstract
Summary: ``Consider a classification problem where we do not have access to labels for individual training examples, but only have average labels over subpopulations. We give practical examples of this setup and show how such a classification task can usefully be analyzed as a {\it weakly supervised clustering problem}. We propose three approaches to solving the weakly supervised clustering problem, including a latent variables model that performs well in our experiments. We illustrate our methods on an analysis of aggregated elections data and an industry data set that was the original motivation for this research.''