The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number ...

Abstract: We introduce graph wedgelets - a tool for data compression on graphs based on the representation of signals by piecewise constant functions on adaptively generated binary graph partitionings ...

Abstract: For multi-attribute decision-making (MADM), how to aggregate data and determine attribute weight is still an open issue. Ordered visibility graph aggregation (OVGA) operator can objectively ...

We currently use parameters of type: piecewise_linear to specify parameters of piecewise functions. These parameters are loaded using get_piecewise_parameters. We thereby assume that the pieces of the ...