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Covering Submonoids and Covering Codes
J. Autom. Lang. Comb., 1999This paper deals with the formalization of the intuitive notion of covering monoid and the investigation of the related algebraic properties. It is shown that covering monoids can be regarded as a generalization of the well known classical monoids and z-monoids. A new coding notion is introduced and a simple method to decide whether a finite set $X$ of
MADONIA, Maria Serafina +2 more
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1995
Given two set systems, (V, F1) and (V, F2), the covering problem (resp. delta-covering problem) is to find F1 ∈ F1 and F2 ∈ F2 maximizing ‖F1 ∪ F2‖(resp. ‖F1ΔF2‖). The two problems are equivalent when F1 and F2 are the collections of bases of two matroids.
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Given two set systems, (V, F1) and (V, F2), the covering problem (resp. delta-covering problem) is to find F1 ∈ F1 and F2 ∈ F2 maximizing ‖F1 ∪ F2‖(resp. ‖F1ΔF2‖). The two problems are equivalent when F1 and F2 are the collections of bases of two matroids.
openaire +1 more source
Thematic accuracy assessment of the NLCD 2016 land cover for the conterminous United States
Remote Sensing of Environment, 2021Stephen Stehman, James Wickham
exaly
The increase of impervious cover and decrease of tree cover within urban areas globally (2012–2017)
Urban Forestry and Urban Greening, 2020David Nowak
exaly
Influence of the seasonal snow cover on the ground thermal regime: An overview
Reviews of Geophysics, 2005Tingjun Zhang
exaly