Design of Experiments

Experimenting on Contextualism

by Nat Hansen

Co-authored with Emmanuel Chemla. Forthcoming in Mind & Language.

In this paper we refine the design of context shifting experiments, which play a central role in contextualist... more In this paper we refine the design of context shifting experiments, which play a central role in contextualist debates, and we subject a large number of scenarios involving different types of expressions of interest to contextualists, including ‘know’ and color adjectives like ‘green’, to experimental investigation. Our experiment (i) reveals an effect of changing contexts on the evaluation of uses of the sentences that we examine, thereby overturning the absence of results reported in previous experimental studies (so-called null results), (ii) uncovers evidence for a ‘truth bias’ in favor of positive over negative sentences, and (iii) reveals previously unnoticed distinctions between the strength of the contextual effects displayed by scenarios involving knowledge ascriptions and for scenarios concerning color and other miscellaneous scenarios.

Optimization of electroacoustic absorbers by means of designed experiments

by Hervé Lissek

First author: Romain Boulandet.
This work was sponsored by the Swiss National Science Foundation for supporting this work, under research Grant 200021-116977

In multivariate systems, when it comes to identifying actual operating conditions ranges, or optimal settings, the use... more In multivariate systems, when it comes to identifying actual operating conditions ranges, or optimal settings, the use of constrained optimization is often required. Among the different tools for the engineer to perform such optimization, designed experiments offer accurate performances. In this paper, the optimization process of “electroacoustic absorbers” is investigated by means of response surface methodology. A multivariate linear model is established by a series of designed experiments in order to analyze the modification of electroacoustic absorber performances due to the variation of several constitutive parameters (such as the moving mass of the loudspeaker, the enclosure volume, the filling density of mineral fiber within the enclosure, and the electrical load value to which the loudspeaker is connected), that influence their whole absorbing mechanisms. A simple case study is then provided to illustrate the capabilities of the developed optimization procedure, from which general conclusions on such design methodology, as well as on electroacoustic absorbers sensitivity, are drawn.

Forscher als Normbrecher: Das Experiment als empirischer Zugang der Rechts-, Raum-und Sozialforschung

by Martin Klamt

Hybrid spaces for science learning: New demands and opportunities for research

by Ole Smørdal

Co-authored with Jim Slotta, Ingeborg Krange, Tom Moher, Francesco Novellis, Alessandro Gnoli, Brenda Lopez Silva, Michelle Lui, Alfredo Jornet, Cecilie F. Jahreie
Symposia for ICLS 2012

“Hybrid spaces for science learning” refers to the merging of real and virtual worlds to produce new environments and... more “Hybrid spaces for science learning” refers to the merging of real and virtual worlds to produce new environments and visualizations where physical and digital objects co-exist and interact in real time. Learning science within hybrid spaces can be a fun, engaging, and reflective experience. Further, hybrid spaces are inherently social, facilitating dialogue and social exchange, as well as the construction of knowledge, paralleling the nature of contemporary science. This symposium brings together several research programs that address learning “across contexts,” that span classroom activities, museum visits, and engaging, embodied experience of science phenomena. We include an international set of presenters from Canada, USA and Norway, each engaged in design and empirical investigations of designs that blends conceptual learning with the development of inquiry skills and epistemological knowledge. Each paper presents the research context, method of design and evaluation, research progress, and science learning outcomes.

Bumper Paint Damage in Low Speed Impacts

by Lee D. Han

SAE Technical Paper 2007, DOI: 10.4271/2007-01-0728
with Bryce Anderson, John Hungerford, Tyler Kress, Steve Richards, and Ken Kirby

This paper presents a methodology to determine the approximate closing speed of a striking vehicle and re-sultant... more This paper presents a methodology to determine the approximate closing speed of a striking vehicle and re-sultant delta-v of the struck vehicle in low speed collinear rear impacts through analysis of the paint damage pat-tern evident on the struck vehicle’s rear bumper. This methodology is only applicable to collisions between vehicles that possess painted flexible plastic foam support-ed bumpers. Five impacts at each of 1.12 m/s, 1.79 m/s, and 2.69 m/s target speeds and three impacts at 3.58 m/s target speeds using freshly painted bumpers were conducted to provide the foundation for this methodology.

The use of powdered guide coat is introduced to contrast the damage pattern on the bumper of the struck vehicle. A measurement of contact paint damage area is obtained and that damage area is then correlated to a closing velocity between the two vehicles. Empirically measured coefficients of restitution and calculated quantities of energy absorbed are also presented for each impact.

The relationship between struck vehicle paint damage area and impact speed was found to be strongly statistically significant (p < 0.001). A positive correlation was found between struck vehicle bumper paint damage and struck vehicle delta-v, with an r-value of 0.978 at a statistically significant level (p < 0.001).

Making Democracy Spectacular

by Nick Mahony

A simulation based approach for warehouse management

by francesco costantino

Developing a Social Psychological Laboratory on a Shoestring

by Huong Le

Optimal few-stage designs for clinical trials

by Quentin F. Stout

Optimal screening designs with flexible cost structures

by Quentin F. Stout

Adaptive Designs for Balancing Complex Objectives

by Quentin F. Stout

Bandit strategies for ethical sequential allocation

by Quentin F. Stout

Optimal adaptive equal allocation rules

by Quentin F. Stout

Optimal allocation for estimating the mean of a bivariate polynomial

by Quentin F. Stout

Adaptive Allocation in the Presence of Missing Observations

by Quentin F. Stout

Sequentially deciding between two experiments for estimating a common success probability

by Quentin F. Stout

Using path induction to evaluate sequential allocation procedures

by Quentin F. Stout

Optimal few-stage designs

by Quentin F. Stout

Directed walk designs for dose response problems with competing failure modes

by Quentin F. Stout

Optimal screening designs with flexible cost and constraint structures

by Quentin F. Stout