Semi-supervised life-long learning with application to sensing


Journal Article

We present a semi-supervised multitask learning (MTL) framework, where we have multiple partially labeled data manifolds, each defining a classification task for which we wish to design a semi-supervised classifier. These different data sets may be observed simultaneously, or over the sensor "life-time". We propose a soft sharing prior over the parameters of all classifiers and learn all tasks jointly. The soft-sharing prior enables any task to robustly borrow information from related tasks. The semi-supervised MTL combines the advantages of semi-supervised learning and multitask learning, thus further improving the generalization performance of each classifier. Our MTL (or life-long learning) framework is based on our previous semi-supervised learning formulation, termed neighborhood-based classifier (NeBC) [1]. The performance of the semi-supervised MTL is validated by experimental results on several sensing data sets. © 2007 IEEE.

Full Text

Duke Authors

Cited Authors

  • Liu, Q; Liao, X; Carin, L

Published Date

  • December 1, 2007

Published In

  • 2007 2nd Ieee International Workshop on Computational Advances in Multi Sensor Adaptive Processing, Campsap

Start / End Page

  • 1 - 4

Digital Object Identifier (DOI)

  • 10.1109/CAMSAP.2007.4497950

Citation Source

  • Scopus