Results 171 to 180 of about 9,033 (258)

Exact Solutions for the Moving Firefighter Problem on Trees

open access: yesNetworks, Volume 88, Issue 1, Page 42-58, July 2026.
ABSTRACT The moving firefighter problem (MFP) is a more realistic variant of the classic firefighter problem (FP), where firefighters require time for both travel and defense. Unfortunately, the only known exact solution for the MFP does not scale. In this paper, we establish that the MFP is NP‐complete on trees of maximum degree three and present four
Mauro A. Montenegro‐Meza   +4 more
wiley   +1 more source

Shaping Decision Models for Stochastic Dynamic Optimization Problems via Reinforcement Learning

open access: yesNetworks, Volume 88, Issue 1, Page 138-157, July 2026.
ABSTRACT With rising customer expectations and increasing computational potential, many transport, manufacturing, and production operations face real‐time decision making in stochastic dynamic environments. Decision makers must find and adapt complex plans that are effective now but also flexible with respect to future developments.
Florentin D. Hildebrandt   +3 more
wiley   +1 more source

QSAFE‐V: Quantum‐Enhanced Lightweight Authentication Protocol Design For Vehicular Tactile Wireless Networks

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 7, July 2026.
A quantum‐secured authentication framework, QSAFE‐V, is introduced for vehicular Tactile Internet environments. By integrating Quantum Identity Tokens, lattice‐based cryptography, and edge‐assisted verification, the framework enables lightweight mutual authentication with strong resistance against replay, impersonation, and quantum‐enabled attacks ...
Shakil Ahmed   +2 more
wiley   +1 more source

Choosing Covariate Balancing Methods for Causal Inference: Practical Insights From a Simulation Study

open access: yesStatistics in Medicine, Volume 45, Issue 15-17, July 2026.
ABSTRACT Background Weighting methods are widely used for confounding adjustment in observational studies, but their finite‐sample behavior depends on implementation choices and empirical overlap. We compare IPTW, just‐ and over‐identified covariate balancing propensity score (CBPS), CBPS by tailored‐loss function (CBPS‐TLF), energy balancing (EB), and
Etienne Peyrot   +2 more
wiley   +1 more source

Formal Approach to Safety‐Driven Dynamic Procedure Modeling

open access: yesSystems Engineering, Volume 29, Issue 4, July 2026.
ABSTRACT Ensuring the safety of unmanned aerial systems (UAS) is a growing concern as the number of UAS grows increasingly fast. Regulatory bodies are in the process of tackling this problem by issuing standards and recommendations to be met by UAS designers.
Jean‐Charles Chaudemar   +3 more
wiley   +1 more source

A new method for a priori practical identifiability. [PDF]

open access: yesPLoS One
Thompson P   +3 more
europepmc   +1 more source

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