Three Applications of Optimization in Computer Graphics (2003)
This thesis addresses the application of nonlinear optimization to three different problems in computer graphics: the generation of gait cycles for legged creatures, the generation of models of truss...
Creating Models of Truss Structures with Optimization (2003)
Jeffrey Smith, Jessica Hodgins, Andrew Witkin
We present a method for designing truss structures, a common and complex category of buildings, using non-linear optimization. Truss structures are ubiquitous in the industrialized world, appearing...
Creating Models of Truss Structures with Optimization (2003)
Jeffrey Smith, Jessica Hodgins, Andrew Witkin
We present a method for designing truss structures, a common and complex category of buildings, using non-linear optimization. Truss structures are ubiquitous in the industrialized world, appearing...
Creating Models of Truss Structures with Optimization (2002)
Jeffrey Smith, Jessica Hodgins, Andrew Witkin
We present a method for designing truss structures, a common and complex category of buildings, using non-linear optimization. Truss structures are ubiquitous in the industrialized world, appearing...
Thesis Proposal: Gait Synthesis With Spacetime Optimization (2002)
The current state of computer animation shows that the automatic synthesis of physically realistic motion is an extremely difficult problem. Despite several diverse approaches to this problem, such...
Feasibility of Using RECON III-B as a Coast Guard Hazardous Chemical Spill Response Tool. (2002)
Maners,Graham S., Smith,Jeffrey, Walker,Richard T.
The test procedure and study documented by this report were performed to evaluate the ability of a remote vehicle system to perform pollutant sampling and vessel hull rupture plugging during...
Fast and Controllable Simulation of the Shattering of Brittle Objects (2001)
Jeffrey Smith, Andrew Witkin, David Baraff
We present a method for the rapid and controllable simulation of the shattering of brittle objects under impact.
Evaluating Profiling as a Means of Allocating Government Services (2001)
Mark C. Berger, Dan Black, Jeffrey Smith, Steve Allen, Markus Frlich
This paper considers the question of how to evaluate profiling as an allocation mechanism, within the context of the choice between alternative allocation mechanisms for specific government programs....
Fernando G. Gonzalez, Alicia Helton, Douglas Helton, Jeffrey Smith, Eileen Thompson, Gerry Walterscheild
In order to develop, test, and validate control software for managing automated systems, laboratories have traditionally constructed experimental test beds using actual physical equipment (small...
Fast and Controllable Simulation of the Shattering of Brittle Objects (2000)
Jeffrey Smith, Andrew Witkin, David Baraff
We present a method for the rapid and controllable simulation of the shattering of brittle objects under impact. An object to be broken is represented as a set of point masses connected by...
Hooper, Jay W., Custer, David M., Smith, Jeffrey, Wahl-Jensen, Victoria
At least four hantavirus species cause disease with prominent renal involvement hemorrhagic fever with renal syndrome (HFRS); and several hantavirus strains cause disease with significant pulmonary...
Extending UML to Support Ontology Engineering for the Semantic Web (1998)
Baclawski, Kenneth, Kokar, Mieczyslaw K., Kogut, Paul A., Hart, Lewis, Smith, Jeffrey, ...
There is rapidly growing momentum for web enabled agents that reason about and dynamically integrate the appropriate knowledge and services at run-time. The World Wide Web Consortium and the DARPA...
James Murray :--his ideas in relation to his circle and his time /--Jeffrey Smith. (1997)
Thesis (M. Litt.)--University of Newcastle upon Tyne, 1997.
James Losh : his ideas in relation to his circle and his time. (1996)
Thesis (Ph. D.)--University of Northumbria at Newcastle, 1996.
Reengineering the physically reasonable infrared signature model by Jeffrey Smith. (1995)
Report (M.S.)--Michigan Technological University, 1995.
Vita.
Chaffin, Elizabeth., Malin, Elizabeth., Smith, Jeffrey.
RESEARCH PROJECT/Journal Article.
Includes vita.
Includes vita.
Covington Community Complex : terminus project / (1979)
Thesis (B.A.)--University of Southwestern Louisiana. Dept. of Architecture, 1979.
Equilibrium Policy Experiments and the Evaluation of Social Programs
Jeremy Lise, Shannon Seitz, Jeffrey Smith
This paper makes three primary contributions. First, we demonstrate the usefulness of general equilibrium models as tools with which to draw policy implications for policies implemented in practice...
Equilibrium Policy Experiments and the Evaluation of Social Programs
Jeremy Lise, Shannon Seitz, Jeffrey Smith
This paper makes three contributions to the literature on program evaluation. First, we construct a model that is well-suited to conduct equilibrium policy experiments and we illustrate effectiveness...
Heckman, James J., Ichimura, Hidehiko, Smith, Jeffrey, Todd, Petra
This paper decomposes the conventional measure of selection bias in observational studies into three components. The first two components are due to differences in the distributions of...
pp90rsk1 Regulates Estrogen Receptor-Mediated Transcription through Phosphorylation of Ser-167
Joel, Peteranne B., Smith, Jeffrey, Sturgill, Thomas W., Fisher, Tracey L., Blenis, John, Lannigan, Deborah A.
The estrogen receptor α (ER), a member of the steroid receptor superfamily, contains an N-terminal hormone-independent transcriptional activation function (AF-1) and a C-terminal hormone-dependent...
Cost-effectiveness of a Primary Care Depression Intervention
Pyne, Jeffrey M, Rost, Kathryn M, Zhang, Mingliang, Williams, D Keith, Smith, Jeffrey, Fortney, John
Equilibrium Policy Experiments and the Evaluation of Social Programs
Jeremy Lise, Shannon Seitz, Jeffrey Smith
In this paper we provide new and convincing evidence on the presence and magnitude of feedback effects associated with 'make work pay' policies currently under consideration in the US, Canada, the UK...
Evaluating Search and Matching Models Using Experimental Data
Jeremy Lise, Shannon Seitz, Jeffrey Smith
This paper introduces an innovative test of search and matching models using the exogenous variation available in experimental data. We take an off-the-shelf Pissarides matching model and calibrate...
Heckman, James J., Ichimura, Hidehiko, Smith, Jeffrey, Todd, Petra
This paper decomposes the conventional measure of selection bias in observational studies into three components. The first two components are due to differences in the distributions of...
pp90rsk1 Regulates Estrogen Receptor-Mediated Transcription through Phosphorylation of Ser-167
Joel, Peteranne B., Smith, Jeffrey, Sturgill, Thomas W., Fisher, Tracey L., Blenis, John, Lannigan, Deborah A.
The estrogen receptor α (ER), a member of the steroid receptor superfamily, contains an N-terminal hormone-independent transcriptional activation function (AF-1) and a C-terminal hormone-dependent...
Cost-effectiveness of a Primary Care Depression Intervention
Pyne, Jeffrey M, Rost, Kathryn M, Zhang, Mingliang, Williams, D Keith, Smith, Jeffrey, Fortney, John
What is the Value Added by Caseworkers?
Michael Lechner, Jeffrey Smith
We investigate the allocation of unemployed individuals to different subprograms within Swiss active labour market policy by the caseworkers at local employment offices in Switzerland in 1998. We are...
Equilibrium Policy Experiments and the Evaluation of Social Programs
Jeremy Lise, Shannon Seitz, Jeffrey Smith
This paper makes three contributions to the literature on program evaluation. First, we construct a model that is well-suited to conduct equilibrium policy experiments and we illustrate effectiveness...
James J. Heckman, Jeffrey Smith
This paper decomposes the participation process of a prototypical program into eligibility, awareness, application, acceptance and enrollment. With this decomposition, we determine the soures of...
Does Matching Overcome Lalonde's Critique of Nonexperimental Estimators?
This paper applies cross-sectional and longitudinal propensity score matching estimators to data from the National Supported Work (NSW) Demonstration that have been previously analyzed by LaLonde...
Bandwidth Selection and the Estimation of Treatment Effects with Unbalanced Data
Jose Galdo, Jeffrey Smith, Dan Black
This paper addresses the selection of smoothing parameters for estimating the average treatment effect on the treated using matching methods. Because precise estimation of the expected counterfactual...
Characterizing Selection Bias Using Experimental Data
James Heckman, Hidehiko Ichimura, Jeffrey Smith, Petra Todd
Semiparametric methods are developed to estimate the bias that arises from using nonexperimental comparison groups to evaluate social programs and to test the identifying assumptions that justify...
"The paper considers lessons from the North America experience with evaluation of active labor market policies that may have applicability to countries in Europe that are just starting to become...
Earning and learning: educational policy and the growth of part-time work by full-time pupils
Christian Dustmann, John Mickelwright, Najma Rajah, Jeffrey Smith
The ‘traditional’ view, in both educational and labour-market policy, of the transition from education to employment centres on the school-leaving decision — in other words, on a particular...
College Quality and Wages in the United States
Dan Black, Jeffrey Smith, Kermit Daniel
We estimate the effects of the quality of the college a student attends on their later earnings using data from a cohort of US college students from the late 1970s and early 1980s. We rely on a...
Heckman, James J, Smith, Jeffrey
The conventional approach to social programme evaluation focuses on estimating mean impacts of programmed. Yet many interesting questions regarding the political economy of programmes, the...
A Simulation Estimator for Dynamic Models of Discrete Choice.
Hotz, V Joseph, Robert A. Miller, Seth Sanders, Jeffrey Smith
This paper analyzes a new estimator for the structural parameters of dynamic models of discrete choice. Based on an inversion theorem due to V. J. Hotz and R. Miller (1993), which establishes the...
This paper examines the effect of the Worker Profiling and Reemployment Services (WPRS) system. This program "profiles" UI claimants to determine their probability of benefit exhaustion (or expected...
The Performance of Performance Standards
Heckman, James J., Heinrich, Carolyn, Smith, Jeffrey
This paper examines the performance of the JTPA performance system, a widely emulated model for inducing efficiency in government organizations. We present a model of how performance incentives may...
Equilibrium Policy Experiments and the Evaluation of Social Programs
Lise, Jeremy, Seitz, Shannon, Smith, Jeffrey
This paper makes three contributions to the literature on program evaluation. First, we construct a model that is well-suited to conduct equilibrium policy experiments and we illustrate effectiveness...
Evaluating Search and Matching Models Using Experimental Data
Jeremy Lise, Shannon Seitz, Jeffrey Smith
This paper introduces an innovative test of search and matching models using the exogenous variation available in experimental data. We take an off-the-shelf Pissarides matching model and calibrate...
What is the Value Added by Caseworkers?
Michael Lechner, Jeffrey Smith
We investigate the allocation of unemployed indivduals to different subprograms within Swiss active labour market policy by the caseworkers at local employment offices in Switzerland in 1998. We are...
Evaluating Profiling as a Means of Allocating Government Services
Mark C. Berger, Dan Black, Jeffrey Smith
This paper considers the use of statistical profiling to allocate persons to alternative options within government programs, or to participation or non-participation in programs. Profiling has been...
What is the Value Added by Caseworkers?
Lechner, Michael, Smith, Jeffrey
We investigate the allocation of unemployed individuals to different subprograms within Swiss active labour market policy by the caseworkers at local employment offices in Switzerland in 1998. We are...
Substitution And Dropout Bias In Social Experiments: A Study Of An Influential Social Experiment
James Heckman, Neil Hohmann, Jeffrey Smith, Michael Khoo
This paper considers the interpretation of evidence from social experiments when persons randomized out of a program being evaluated have good substitutes for it, and when persons randomized into a...
Accounting For Dropouts In Evaluations Of Social Programs
James Heckman, Jeffrey Smith, Christopher Taber
This paper explores issues that arise in the evaluation of social programs using experimental data in the frequently encountered case where some of the experimental treatment group members drop out...
A Critical Survey of Empirical Methods for Evaluating Active Labor Market Policies
This paper considers different methods for solving the evaluation problem. I highlight the role of heterogeneity in program impacts in defining evaluation parameters of interest and in interpreting...
Program evaluation, Matching, Multi-treatment program, JTPA,
Characterizing Selection Bias Using Experimental Data
James Heckman, Hidehiko Ichimura, Jeffrey Smith, Petra Todd
This paper develops and applies semiparametric econometric methods to estimate the form of selection bias that arises from using nonexperimental comparison groups to evaluate social programs and to...
The Performance of Performance Standards
James Heckman, Carolyn Heinrich, Jeffrey Smith
This paper examines the performance of the JTPA performance system, a widely emulated model for inducing efficiency in government organizations. We present a model of how performance incentives may...
Nancy Clements, James Heckman, Jeffrey Smith
This paper demonstrates that even under ideal conditions, social experiments in general only uniquely determine the mean impacts of programs but not the median or the distribution of program impacts....
Accounting for Dropouts in Evaluations of Social Experiments
James Heckman, Jeffrey Smith, Christopher Taber
This paper considers the statistical and economic justification for one widely-used method of adjusting data from social experiments to account for dropping-out behavior due to Bloom (1984). We...
Sales, Anne, Smith, Jeffrey, Curran, Geoffrey, Kochevar, Laura
This paper presents a case for careful consideration of theory in planning to implement evidence-based practices into clinical care. As described, theory should be tightly linked to strategic...