3,770 research outputs found
A Primer on Spreadsheet Analytics
This paper provides guidance to an analyst who wants to extract insight from
a spreadsheet model. It discusses the terminology of spreadsheet analytics, how
to prepare a spreadsheet model for analysis, and a hierarchy of analytical
techniques. These techniques include sensitivity analysis, tornado charts,and
backsolving (or goal-seeking). This paper presents native-Excel approaches for
automating these techniques, and discusses add-ins that are even more
efficient. Spreadsheet optimization and spreadsheet Monte Carlo simulation are
briefly discussed. The paper concludes by calling for empirical research, and
describing desired features spreadsheet sensitivity analysis and spreadsheet
optimization add-ins.Comment: 12 Pages, 8 Colour Figure
On relations of invariants for vector-valued forms
An algorithm is given for computing explicit formulas for the generators of
relations among the invariant rational functions for vector-valued bilinear
forms.
These formulas have applications in the geometry of Riemannian submanifolds
and in CR geometry.Comment: Major changes in the expositio
Towards Evaluating the Quality of a Spreadsheet: The Case of the Analytical Spreadsheet Model
We consider the challenge of creating guidelines to evaluate the quality of a
spreadsheet model. We suggest four principles. First, state the domain-the
spreadsheets to which the guidelines apply. Second, distinguish between the
process by which a spreadsheet is constructed from the resulting spreadsheet
artifact. Third, guidelines should be written in terms of the artifact,
independent of the process. Fourth, the meaning of "quality" must be defined.
We illustrate these principles with an example. We define the domain of
"analytical spreadsheet models", which are used in business, finance,
engineering, and science. We propose for discussion a framework and terminology
for evaluating the quality of analytical spreadsheet models. This framework
categorizes and generalizes the findings of previous work on the more narrow
domain of financial spreadsheet models. We suggest that the ultimate goal is a
set of guidelines for an evaluator, and a checklist for a developer.Comment: Proc. European Spreadsheet Risks Int. Grp. (EuSpRIG) 2011 ISBN
978-0-9566256-9-
Slepton Flavor Physics at Linear Colliders
If low energy supersymmetry is realized in nature it is possible that a first
generation linear collider will only have access to some of the superpartners
with electroweak quantum numbers. Among these, sleptons can provide sensitive
probes for lepton flavor violation through potentially dramatic lepton
violating signals. Theoretical proposals to understand the absence of low
energy quark and lepton flavor changing neutral currents are surveyed and many
are found to predict observable slepton flavor violating signals at linear
colliders. The observation or absence of such sflavor violation will thus
provide important indirect clues to very high energy physics. Previous analyses
of slepton flavor oscillations are also extended to include the effects of
finite width and mass differences.Comment: 7 pages, no figures, uses RevTeX4. Contribution to Snowmass 200
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