A Recursive Procedure for Updating Quadratic Forms and Its Application to Feature Selection.

Abstract

A survey of the problem of the selection of measurements is presented. The Mahalanobis distance is introduced as a selection criterion, and approached from an algebraic point of view. A new method for updating the inverse of a positive definite matrix is derived, and applied to the selection problem. Two interactive procedures are developed and used in experiments with the classic problem of Fisher, with high-resoluton radar images, and with aircraft photographs. Moments are used as features in the last two experiments. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 30, 1978
Accession Number
ADA058466

Entities

People

  • B. M. E. Moret
  • R. C. Gonzalez

Organizations

  • University of Tennessee

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • C4I
  • Sensors

DTIC Thesaurus Topics

  • Aircrafts
  • Computations
  • Dimensionality Reduction
  • Electrical Engineering
  • Errors
  • Feature Extraction
  • Image Processing
  • Images
  • Information Theory
  • Loops
  • Measurement
  • Numbers
  • Pattern Recognition
  • Photographs
  • Radar Images
  • Transport Aircraft
  • Two Dimensional

Readers

  • Geodesy
  • Regression Analysis.