Results 21 to 30 of about 213,568 (263)

Faster Sparse Minimum Cost Flow by Electrical Flow Localization [PDF]

open access: yes2021 IEEE 62nd Annual Symposium on Foundations of Computer Science (FOCS), 2022
We give an $\widetilde{O}({m^{3/2 - 1/762} \log (U+W))}$ time algorithm for minimum cost flow with capacities bounded by $U$ and costs bounded by $W$. For sparse graphs with general capacities, this is the first algorithm to improve over the $\widetilde{O}({m^{3/2} \log^{O(1)} (U+W)})$ running time obtained by an appropriate instantiation of an ...
Axiotis, Kyriakos   +2 more
openaire   +3 more sources

A note on efficient minimum cost adjustment sets in causal graphical models

open access: yesJournal of Causal Inference, 2022
We study the selection of adjustment sets for estimating the interventional mean under an individualized treatment rule. We assume a non-parametric causal graphical model with, possibly, hidden variables and at least one adjustment set composed of ...
Smucler Ezequiel, Rotnitzky Andrea
doaj   +1 more source

Maximum flow and minimum-cost flow in multi-interface networks [PDF]

open access: yesProceedings of the 5th International Conference on Ubiquitous Information Management and Communication, 2011
In heterogeneous networks, devices can communicate by means of multiple wired or wireless interfaces. By switching among interfaces or by combining the available interfaces, each device might establish several connections. A connection is established when the devices at its endpoints share at least one active interface.
Gianlorenzo D'Angelo   +2 more
openaire   +4 more sources

Minimum cost network flows: Problems, algorithms, and software [PDF]

open access: yesYugoslav Journal of Operations Research, 2013
We present a wide range of problems concerning minimum cost network flows, and give an overview of the classic linear single-commodity Minimum Cost Network Flow Problem (MCNFP) and some other closely related problems, either tractable or intractable ...
Sifaleras Angelo
doaj   +1 more source

Finding minimum-cost flows by double scaling [PDF]

open access: yesMathematical Programming, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ravindra K. Ahuja   +3 more
openaire   +2 more sources

The minimum cost multicommodity flow problem in dynamic networks and an algorithm for its solving [PDF]

open access: yesComputer Science Journal of Moldova, 2005
The dynamic version of the minimum cost multicommodity flow problem that generalizes the static minimum cost multicommodity flow problem is formulated and studied.
Maria A. Fonoberova, Dmitrii D. Lozovanu
doaj  

Traffic flow consideration in design of freight distribution system

open access: yesIATSS Research, 2010
This study is part of a series of research projects on a distribution system we developed to deal with cases in a state-owned company. It concerns the design of the Public Service Obligation State-owned Company (PSO-SOC) distribution system.
Sutanto Soehodho, Nahry
doaj   +1 more source

Minimum Cost Flow Model and Algorithm of Virtual Network Embedding

open access: yesDianxin kexue, 2014
The dynamic process of network virtualization was studied,and the inversion phenomenon that the revenue did not rely on embedding cost was discovered.Then minimum cost flow model and algorithms of virtual network embedding which fit for creating virtual ...
Xiaohua Chen   +3 more
doaj   +2 more sources

Flow Network Models for Online Scheduling Real-Time Tasks on Multiprocessors

open access: yesIEEE Access, 2020
We consider the flow network model to solve the multiprocessor real-time task scheduling problems. Using the flow network model or its generic form, linear programming (LP) formulation, for the problems is not new.
Hyeonjoong Cho, Arvind Easwaran
doaj   +1 more source

Childhood Acute Lymphoblastic Leukemia Survival in Western Kenya: Reduction in Early Deaths and Treatment Abandonment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background An earlier study on children diagnosed with acute lymphoblastic leukemia (ALL) at Moi Teaching and Referral Hospital (MTRH) in Kenya reported a low event‐free survival (EFS), excess treatment abandonment, and high induction mortality.
Gilbert Olbara   +7 more
wiley   +1 more source

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