Table of contentsSlide 1
Basic Concepts
Basic Concepts (cont.)
Issues in diversity
Types of structural diversity
Small (< ca. 500) datasets of practical interest
Other small datasets
Questions of a structural diversity measure
Questions for a given dataset
Possibilities for quantitation
Some proposed database diversity measures
Stigmata
Diversity measures and modal fingerprints
Extend threshold analysis
Relative vs. absolute
Other measures derived from bits or similarities
Slide 17
Slide 18
Slide 19
Slide 20
Principal Components (n = 23, k = 18)
Rotated Factor Pattern (dissimilarities and ln)
Datasets Plotted vs. First Two Rotated Factors
Datasets plotted vs. mean modal dissimilarity (t=0.5) and average # bits
msds_nn1
mean centr_dist
ln_mxbcom
Directions
Conclusions to date
Acknowledgments
Correlations among diversity measures (n = 23)
Correlations (cont.)
Datasets plotted vs. mean pairwise dissimilarity and average # bits
Datasets plotted vs. mean centroid distance and average # bits
Slide 35
