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Convex Relaxations and Approximations of Chance-Constrained AC-OPF Problems

open access: yes, 2018
This paper deals with the impact of linear approximations for the unknown nonconvex confidence region of chance-constrained AC optimal power flow problems. Such approximations are required for the formulation of tractable chance constraints.
Chatzivasileiadis, Spyros   +2 more
core   +1 more source

Confidence building measures – necessary component establishing Nuclear Weapon Free Zone in the region

open access: yesThe Mongolian Journal of International Affairs, 2011
DOI: 10.5564/mjia.v0i14.25 Mongolian Journal of International Affairs No.14 2007 pp.64 ...
Alexander Nemov
doaj   +1 more source

Uniformly Valid Confidence Sets Based on the Lasso

open access: yes, 2018
In a linear regression model of fixed dimension $p \leq n$, we construct confidence regions for the unknown parameter vector based on the Lasso estimator that uniformly and exactly hold the prescribed in finite samples as well as in an asymptotic setup ...
Ewald, Karl, Schneider, Ulrike
core   +1 more source

Search for Magnetic Monopoles in s√=7  TeV pp Collisions with the ATLAS Detector [PDF]

open access: yes, 2011
This Letter presents a search for magnetic monopoles with the ATLAS detector at the CERN Large Hadron Collider using an integrated luminosity of 2.0  fb−1 of pp collisions recorded at a center-of-mass energy of s√=7  TeV.
, The ATLAS collaboration
core   +4 more sources

Multi-epoch Analysis of Pulse Shapes from the Neutron Star SAX J1808.4-3658

open access: yes, 2010
The pulse shapes detected during multiple outbursts of SAX J1808 are analyzed in order to constrain the neutron star's mass and radius. We use a hot-spot model with a small scattered-light component to jointly fit data from two different epochs, under ...
Alford   +21 more
core   +1 more source

Confidence Regions in Multivariate Calibration

open access: yesThe Annals of Statistics, 1988
The multivariate calibration problem is considered, in which a sample of n observations on vectors \(\xi_{(i)}\) (of ``true values'') and \(Y_{(i)}\) (of less accurate but more easily obtained values) are to be used to estimate the unknown \(\xi\) corresponding to a future Y.
openaire   +3 more sources

Empirical simultaneous confidence regions for path-forecasts [PDF]

open access: yes
Measuring and displaying uncertainty around path-forecasts, i.e. forecasts made in period T about the expected trajectory of a random variable in periods T+1 to T+H is a key ingredient for decision making under uncertainty.
Jordà, Òscar   +2 more
core   +3 more sources

Confidence Regions for Steady-State Probabilities and Additive Functionals Based on a Single Sample Path of an Ergodic Markov Chain

open access: yesMathematics
Discrete, finite-state Markov chains are applied in many different fields. When a system is modeled as a discrete, finite-state Markov chain, the asymptotic properties of the system, such as the steady-state distribution, are often estimated based on a ...
Yann Vestring, Javad Tavakoli
doaj   +1 more source

Plant Friendly Input Design for Parameter Estimation in an Inertial System with Respect to D-Efficiency Constraints

open access: yesEntropy, 2014
System identification, in practice, is carried out by perturbing processes or plants under operation. That is why in many industrial applications a plant-friendly input signal would be preferred for system identification.
Wiktor Jakowluk
doaj   +1 more source

Asteroid family identification using the Hierarchical Clustering Method and WISE/NEOWISE physical properties [PDF]

open access: yes, 2013
Using albedos from WISE/NEOWISE to separate distinct albedo groups within the Main Belt asteroids, we apply the Hierarchical Clustering Method to these subpopulations and identify dynamically associated clusters of asteroids. While this survey is limited
Bauer, J. M.   +5 more
core   +1 more source

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