Results 41 to 50 of about 9,044 (253)

Distributionally robust halfspace depth

, 2021
Tukey's halfspace depth can be seen as a stochastic program and as such it is not guarded against optimizer's curse, so that a limited training sample may easily result in a poor out-of-sample performance. We propose a generalized halfspace depth concept relying on the recent advances in distributionally robust optimization, where every halfspace is ...
Ivanovs, Jevgenijs, Mozharovskyi, Pavlo
openaire   +2 more sources

Data-driven Distributionally Adjustable Robust Chance-constrained DG Capacity Assessment

Journal of Modern Power Systems and Clean Energy
Moving away from fossil fuels towards renewable sources requires system operators to determine the capacity of distribution systems to safely accommodate green and distributed generation (DG).
Masoume Mahmoodi, Seyyed Mahdi Noori Rahim Abadi, Ahmad Attarha, Paul Scott, Lachlan Blackhall   +4 more
doaj   +1 more source

High-Dimensional Distributionally Robust Mean-Variance Efficient Portfolio Selection

Mathematics, 2023
This paper introduces a novel distributionally robust mean-variance portfolio estimator based on the projection robust Wasserstein (PRW) distance. This approach addresses the issue of increasing conservatism of portfolio allocation strategies due to high-
Zhonghui Zhang, Huarui Jing, Chihwa Kao
doaj   +1 more source

Semi-supervised Learning based on Distributionally Robust Optimization

, 2019
We propose a novel method for semi-supervised learning (SSL) based on data-driven distributionally robust optimization (DRO) using optimal transport metrics.
Balsubramani A., Blanchet J.H., Blum A., Ghosh S., Grandvalet Y., Luenberger D.G., Namkoong H., Rubner Y., Shafieezadeh‐Abadeh S., Villani C., Volpi R., Xu H., Zhu X.   +12 more
core   +1 more source

Stereotactic Body Radiation Therapy for Pediatric, Adolescent, and Young Adult Patients With Osteosarcoma: Local Control Outcomes With Dosimetric Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Osteosarcoma is a radioresistant tumor that may benefit from stereotactic body radiation therapy (SBRT) for locoregional control in metastatic/recurrent disease. We report institutional practice patterns, outcomes, toxicity, and failures in osteosarcoma patients treated with SBRT.
Jenna Kocsis, Shauna R. Campbell, Jonathan Jang, Eashwar Somasundaram, Chandana A. Reddy, Jacob G. Scott, Lilyana Angelov, Peter M. Anderson, Matteo Trucco, Zachary Burke, Lukas Nystrom, Nathan Mesko, Anthony Magnelli, Erin S. Murphy   +13 more
wiley   +1 more source

Study of Impact of Moment Information in Demand Forecasting on Distributionally Robust Fulfillment Rate Improvement Algorithm

Mathematics
Front distribution centers are extensively employed in E-commerce distribution networks to shorten the delivery time, thereby stimulating customers’ purchase intentions and enhancing customer loyalty. When a customer places an order, the designated front
Haodong Feng
doaj   +1 more source

A distributionally robust optimization approach for two-stage facility location problems

EURO Journal on Computational Optimization, 2020
In this paper, we consider a facility location problem where customer demand constitutes considerable uncertainty, and where complete information on the distribution of the uncertainty is unavailable.
Arash Gourtani, Tri-Dung Nguyen, Huifu Xu   +2 more
doaj   +1 more source

Data-driven Variable Speed Limit Design for Highways via Distributionally Robust Optimization

, 2018
This paper introduces an optimization problem (P) and a solution strategy to design variable-speed-limit controls for a highway that is subject to traffic congestion and uncertain vehicle arrival and departure.
Fooladivanda, Dariush, Li, Dan, Martinez, Sonia   +2 more
core   +1 more source

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed, Raquel Revuelta Iniesta, Mary Fewtrell, Julie Lanigan, Breeana Gardiner, Graeme O'Connor   +5 more
wiley   +1 more source

Distributionally robust multi-stage stochastic programming for mid- and long-term cross-regional power markets

International Journal of Electrical Power & Energy Systems
The widespread integration of renewable energy sources (RESs) has presented significant challenges in deregulated power markets. The inherent uncertainty of RES poses challenges for clearing cross-temporal and cross-regional transactions, manifesting as ...
Yuhan Huang, Tao Ding, Xiaosheng Zhang, Shuhai Feng, Yiding Jin, Yangsheng Sun, Tong Xing   +6 more
doaj   +1 more source