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Adaptive directional Haar tight framelets on bounded domains for digraph signal representations
Based on hierarchical partitions, we provide the construction of Haar-type
tight framelets on any compact set . In particular, on
the unit block , such tight framelets can be built to be with
adaptivity and directionality. We show that the adaptive directional Haar tight
framelet systems can be used for digraph signal representations. Some examples
are provided to illustrate results in this paper