Derek Williamson

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Many complex models that utilize continuous simulation (SWMM, HSPF, SLAMM, SIMPTM, etc.) require information pertaining to the accumulation rate of pollutants on the land surfaces. This is one of the most perplexing issues in stormwater modeling. A representation of the accumulation rates is usually obtained through trial and error during calibration, with(More)
Two research projects that examined source area sheetflows that were conducted in the 1990s are high-lighted in this chapter. These are a comprehensive project conducted in Birmingham, AL, as part of a project developing a control strategy for critical source areas, and a series of related projects conducted in Wisconsin as part of the DNR’s efforts in(More)
a. To continue to run the text analysis programs at Harvard [2], and to rewrite only those programs dealing with document abstracts and queries as numeric vectors; b. to concentrate on two major areas at Cornell (the implementation of Rocchio's clustering algorithm [3] and of various relevance feedback algorithms [3*̂ 3)J c. to write these programs to(More)
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