Accession Number:

ADA030586

Title:

A Small-Scale Investigation of Statistics for Determining the Number of Clusters in a Data Base.

Descriptive Note:

Technical rept.,

Corporate Author:

DESMATICS INC STATE COLLEGE PA

Personal Author(s):

• Smith,Dennis E.
• Gardner,Robert L.

Report Date:

1976-09-01

Pagination or Media Count:

27.0

Abstract:

In construction of a predictive mathematical model of impact acceleration injury, changes in evoked potential response may serve to provide important information. In attempting to determine whether a number of different types of changes exist, cluster analysis may be used. This report describes a limited Monte Carlo examination of four statistics used in conjunction with Wards hierarchical clustering algorithm for identifying the number of clusters built into a simulated ten-dimensional data space. Author

Descriptors:

• *DATA BASES
• *CLUSTERING
• *MATHEMATICAL PREDICTION
• *ANATOMY
• ALGORITHMS
• MONTE CARLO METHOD
• ERRORS
• HIERARCHIES
• HEAD(ANATOMY)
• IMPACT ACCELERATION
• NECK(ANATOMY)

Subject Categories:

• Stress Physiology
• Statistics and Probability

Distribution Statement:

APPROVED FOR PUBLIC RELEASE