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This note responds to two recent items in the SIGMAP Bulletin:•December '77: "Benchmark Test of MPSX/370 vs. MPSIII" by Patrick G. Falk•April '78: "User Evaluation of MPSX/370 - SHARE 49, Washington, D.C." August 22, 1977 by Patrick G. Falk and James J. TumbuschBoth deal with essentially the...
Many of the most effective function optimization algorithms require the gradient of the function to be optimized. In many cases of practical interest the gradient is not available in closed form and must be approximated numerically, finite differences being the most frequent approach. This note...
The problem of selecting a data processing system and determining the set of applications to be performed by the chosen system is one which confronts more as well as smaller firms every year. The use of management science techniques in making these crucial decisions has been very limited. Some...
This note describes the actual steps taken by the author in attempting to get insight into the effective solution of a hard integer program. A reduction in CPU time of around 97% was eventually achieved, but the major purpose of the note is to reinforce the moral that a subtlety of approach is...
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