1,132 research outputs found
Synthetic Principal Component Design: Fast Covariate Balancing with Synthetic Controls
The optimal design of experiments typically involves solving an NP-hard
combinatorial optimization problem. In this paper, we aim to develop a globally
convergent and practically efficient optimization algorithm. Specifically, we
consider a setting where the pre-treatment outcome data is available and the
synthetic control estimator is invoked. The average treatment effect is
estimated via the difference between the weighted average outcomes of the
treated and control units, where the weights are learned from the observed
data. {Under this setting, we surprisingly observed that the optimal
experimental design problem could be reduced to a so-called \textit{phase
synchronization} problem.} We solve this problem via a normalized variant of
the generalized power method with spectral initialization. On the theoretical
side, we establish the first global optimality guarantee for experiment design
when pre-treatment data is sampled from certain data-generating processes.
Empirically, we conduct extensive experiments to demonstrate the effectiveness
of our method on both the US Bureau of Labor Statistics and the
Abadie-Diemond-Hainmueller California Smoking Data. In terms of the root mean
square error, our algorithm surpasses the random design by a large margin
Publications of the Jet Propulsion Laboratory, 1980
This bibliography cites by primary author the externally distributed technical reporting, released during calendar year 1980, that resulted from scientific and engineering work performed, or managed, by the Jet Propulsion Laboratory. Three classes of publications are included: (1) JPL Publications (77-, 78-, 79-series, etc.), in which the information is complete for a specific accomplishment and can e tailored to wide or limited audiences and be presented in an established standard format or special format to meet unique requirements; (2) articles published in the open literature; and (3) articles from the bimonthly Deep Space Network (DSN) Progress Repot (42-series) and its successor, the Telecommunications and Data Acquisition (TDA) Progress Report (also 42-series)
Investigation related to multispectral imaging systems
A summary of technical progress made during a five year research program directed toward the development of operational information systems based on multispectral sensing and the use of these systems in earth-resource survey applications is presented. Efforts were undertaken during this program to: (1) improve the basic understanding of the many facets of multispectral remote sensing, (2) develop methods for improving the accuracy of information generated by remote sensing systems, (3) improve the efficiency of data processing and information extraction techniques to enhance the cost-effectiveness of remote sensing systems, (4) investigate additional problems having potential remote sensing solutions, and (5) apply the existing and developing technology for specific users and document and transfer that technology to the remote sensing community
Performance Analysis integrating Data Envelopment Analysis and Multiple Objective Linear Programming
Integration of water quantity, quality in river basin network flow modeling
Includes bibliographical references.Grant no. 14-08-0001-G2008/2; project no. 11; financed in part by the U.S. Dept. of the Interior, Geological Survey
Air Force Institute of Technology Research Report 2015
This report summarizes the research activities of the Air Force Institute of Technology’s Graduate School of Engineering and Management. It describes research interests and faculty expertise; lists student theses/dissertations; identifies research sponsors and contributions; and outlines the procedures for contacting the school. Included in the report are: faculty publications, conference presentations, consultations, and funded research projects. Research was conducted in the areas of Aeronautical and Astronautical Engineering, Electrical Engineering and Electro-Optics, Computer Engineering and Computer Science, Systems Engineering and Management, Operational Sciences, Mathematics, Statistics and Engineering Physics
Air Force Institute of Technology Research Report 2015
This report summarizes the research activities of the Air Force Institute of Technology’s Graduate School of Engineering and Management. It describes research interests and faculty expertise; lists student theses/dissertations; identifies research sponsors and contributions; and outlines the procedures for contacting the school. Included in the report are: faculty publications, conference presentations, consultations, and funded research projects. Research was conducted in the areas of Aeronautical and Astronautical Engineering, Electrical Engineering and Electro-Optics, Computer Engineering and Computer Science, Systems Engineering and Management, Operational Sciences, Mathematics, Statistics and Engineering Physics
Advances in Intelligent Vehicle Control
This book is a printed edition of the Special Issue Advances in Intelligent Vehicle Control that was published in the journal Sensors. It presents a collection of eleven papers that covers a range of topics, such as the development of intelligent control algorithms for active safety systems, smart sensors, and intelligent and efficient driving. The contributions presented in these papers can serve as useful tools for researchers who are interested in new vehicle technology and in the improvement of vehicle control systems
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