Janiak, Adam; Krysiak, Tomasz - In: International Journal of Production Economics 135 (2012) 1, pp. 231-241
stepwise value, there is given a number of moments at which the job value decreases and between them the job value is constant … (thus, the value deteriorates over time). The maximized criterion is the total job value. We prove strong NP-hardness of a … unrelated parallel processors and fixed number of common moments of job value changes. Additionally, for uniform and unrelated …