A sensitivity analysis of the PAWN sensitivity index

The PAWN index is gaining traction among the modelling community as a sensitivity measure. However, the robustness to its design parameters has not yet been scrutinized: the size (N) and sampling (ε) of the model output, the number of conditioning intervals (n) or the summary statistic (θ). Here we fill this gap by running a sensitivity analysis of a PAWN-based sensitivity analysis. We compare the results with the design uncertainties of the Sobol’ total-order index (S*Ti). Unlike in S*Ti, the design uncertainties in PAWN create non-negligible chances of producing biased results when ranking or screening inputs. The dependence of PAWN upon (N, n, ε, θ) is difficult to tame, as these parameters interact with one another. Even in an ideal setting in which the optimum choice for (N, n, ε, θ) is known in advance, PAWN might not allow to distinguish an influential, non-additive model input from a truly non-influential model input

Steinway Piano Gala Fundraiser

Normal Community West High School Auditorium Sunday Afternoon September 12, 1999 3:00p.m

Quantitative storytelling in the making of a composite indicator

The reasons for and against composite indicators are briefly reviewed, as well as the available theories for their construction. After noting the strong normative dimension of these measures—which ultimately aim to ‘tell a story’, e.g. to promote the social discovery of a particular phenomenon, we inquire whether a less partisan use of a composite indicator can be proposed by allowing more latitude in the framing of its construction. We thus explore whether a composite indicator can be built to tell ‘more than one story’ and test this in practical contexts. These include measures used in convergence analysis in the field of cohesion policies and a recent case involving the World Bank’s Doing Business Index. Our experiments are built to imagine different constituencies and stakeholders who agree on the use of evidence and of statistical information while differing on the interpretation of what is relevant and vital

Guest Recital: Delphin & Romain, Duo-Piano

Kemp Recital Hall Saturday Evening November 2, 1991 8:30p.m

Charles W. Bolen Faculty Recital Series: Carlyn Morenus, Piano; Paul Borg, Piano; October 27, 2009

Center for the Performing ArtsOctober 27, 2009Tuesday Evening8:00 p.m

Two Piano Recital

Centennial Lecture Hall May 18, 1969 7:30p.m

Faculty Recital:Carlyn Morenus & Paul Borg Duo Pianists

Kemp Recital Hall Tuesday Evening April 2, 2002 8:00p.m

Faculty Recital: Julian Dawson, Piano Yurie Iwasaki, Piano

Kemp Recital Hall Tuesday Evening March 21, 1995 8.00p