Results 11 to 20 of about 2,701,676 (183)

Plummeting Broadcast Storm Problem in Highways by Clustering Vehicles Using Dominating Set and Set Cover

open access: yesSensors, 2019
“Vehicular Ad-hoc Networks„ (VANETs): As an active research area in the field of wireless sensor networks, they ensure road safety by exchanging alert messages about unexpected events in a decentralized manner.
S. Kamakshi, V. S. Shankar Sriram
doaj   +1 more source

The Angular Set Covering Problem

open access: yesIEEE Access, 2023
We present an innovative extension of the Set Covering Problem, transitioning from a traditional radial covering to an angular covering structure. The decisions are based on locating the facilities and identifying the directional servers installed in each, covering a set of points in a geographic area.
Fredy Barriga-Gallegos   +2 more
openaire   +2 more sources

Genetic algorithm efficiency improvement in the course of set cover problem solution

open access: yesAdvanced Engineering Research, 2019
Introduction. Practical tasks (location of service points, creation of microcircuits, scheduling, etc.) often require an exact or approximate to exact solution at a large dimension.
I. S. Konovalov   +2 more
doaj   +1 more source

Incremental Updating Algorithm for Approximation Sets on Semi-Monolayer Cover Rough Sets [PDF]

open access: yesJisuanji gongcheng, 2022
A one-to-one mapping relationship exists between the semi-monolayer cover rough sets and the set-valued information system.When an object set in a set-valued information system is dynamically added or removed, the information unit that corresponds to the
WU Zhengjiang, ZHANG Yaning, ZHANG Zhen, MEI Qiuyu, YANG Tian
doaj   +1 more source

Exact and greedy algorithms of allocating experts to maximum set of programmer teams

open access: yesСистемный анализ и прикладная информатика, 2022
The allocation of experts to programmer teams, which meet constraints on professional competences related to programming technologies, languages and tools an IT project specifies is a hard combinatorial problem.
A. A. Prihozhy
doaj   +1 more source

Towards Tight Bounds for the Streaming Set Cover Problem [PDF]

open access: yes, 2016
We consider the classic Set Cover problem in the data stream model. For $n$ elements and $m$ sets ($m\geq n$) we give a $O(1/\delta)$-pass algorithm with a strongly sub-linear $\tilde{O}(mn^{\delta})$ space and logarithmic approximation factor.
Har-Peled, Sariel   +3 more
core   +1 more source

Greedy Game Algorithms for Solving SET $K$ -Cover Problem in HWSNs

open access: yesIEEE Access, 2018
Coverage is a fundamental problem in heterogeneous wireless sensor networks (HWSNs). Lifetime of the HWSNs is another important problem in this area. The K-Cover problem can solve both the coverage and lifetime issues.
Wenjie Yan   +3 more
doaj   +1 more source

Vertex Cover Gets Faster and Harder on Low Degree Graphs [PDF]

open access: yes, 2014
The problem of finding an optimal vertex cover in a graph is a classic NP-complete problem, and is a special case of the hitting set question. On the other hand, the hitting set problem, when asked in the context of induced geometric objects, often turns
Agrawal, Akanksha   +2 more
core   +1 more source

Two Heuristic Algorithms for the Minimum Weighted Connected Vertex Cover Problem Under Greedy Strategy

open access: yesIEEE Access, 2022
The Minimum Weighted Connected Vertex Cover problem (MWCVC) is to find a subset $F\subset V(G)$ with minimum weight in a node-weighted graph $G$ , such that when removing the set $F$ , the inducing graph of remaining vertices holds no edges, and the ...
Qipeng Xie   +4 more
doaj   +1 more source

Approximation Algorithms for the Geometric Firefighter and Budget Fence Problems

open access: yesAlgorithms, 2018
Let R denote a connected region inside a simple polygon, P. By building barriers (typically straight-line segments) in P \ R
Rolf Klein   +2 more
doaj   +1 more source

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