“…In our physical database design study, in order to improve the performance of relational database systems (Bell, 1984), clustering was used to optimize the physical proximity of interrelated tuples on secondary storage devices. Simulated annealing (Bell et al, 1990;Kirkpatrick et al, 1983), graph collapsing (Bell et al, 1988), and genetic adaptation (Bell and McErlean, 1994) were compared in our previous studies. Most clustering algorithms use a measure of similarity to create clusters of associated terms.…”