level. This is convenient because this is generally the part of the system where most of the implementation resides. • Roles increase complexity in the upper half of the inheritance hierarchy (Higher DIT and NOC values). This is also advantageous as it is now possible to express design concepts on a higher, more abstract level that were previously hard-coded in the lower layers of the inheritan...

In models with low-energy supersymmetry breaking, an anomalous Abelian horizontal gauge symmetry can simultaneously explain the fermion mass hierarchy and the values of the μ and B terms. We construct an explicit model where the anomaly is cancelled by the Green-Schwarz mechanism at the string scale. We show that with our charge assignments, the breaking of the horizontal symmetry generates the...

The article presents a preflow approach for the parametric maximum flow problem, derived from the rules of constructing concepts hierarchy in text corpus. Just as generating a taxonomy can be equivalently reduced to ranking concepts within a text corpus according to a defined criterion, the proposed preflow bipush-relabel algorithm computes the maximum flow the optimum flow that respects certai...

This paper describes two methods for hierarchically organizing temporal behaviors. The rst is more intuitive: grouping together common sequences of events into single units so that they may be treated as individual behaviors. This system immediately encounters problems, however, because the units are binary , meaning the behaviors must execute completely or not at all, and this hinders the cons...

Pattern{Based Clustering for Database Attribute Values Matthew Merzbacher Wesley W. Chu Computer Science Department University of California Los Angeles, CA 90024 Abstract We present a method for automatically clustering similar attribute values in a database system spanning mulitple domains. The method constructs an attribute abstraction hierarchy for each attribute using rules that are derive...