We prove the problems to be strongly NP-hard, propose novel mixed-integer programming formulations for these problems, and show how these models can be extended to the case that the driving range varies during a trip.
This is another achievement of the designed AMOSA in reaching solutions near true Pareto front in solving NP-hard proposed model.
Anonymous, Connecticut It's hard to propose a solution that doesn't risk your friendship other than to advise you to grin and bear it, be your most gracious self and bring whatever is assigned to you.
First of all, the generation of musical sounds is highly dependent on the instruments used, hence it is hard to propose a generic audio signal generation model.
However, it is hard to propose effective design guidelines due to the lack of a clear understanding of the interaction mechanisms.
Parents and community members across the city have worked long and hard to propose new district-wide admissions policies rooted in what is fair and transparent and insures equitable access for ALL our families.
As finding DPs is computationally hard, we propose heuristics and algorithms with provable approximation ratios and study their performance.
This was unexpected, because it is hard to propose how the plant actin cytoskeleton can support normal inflorescence growth with abnormally low levels of profilin.
However, the problem is that besides the conclusions from qualitative analysis it is hard to propose a tool to measure the increasing share of persons that are "liquid migrants" and unfortunately such a tool was not proposed in this book either.
Whereas once something becomes the Way We Redistribute, it's both hard to pare back and harder to propose alternatives, no matter what the data ultimately show about the program's actual effectiveness.
And they make it that much harder to propose new and much-needed investments in, say, infrastructure and education.
