In this paper recently developed mixed-integer programming (MIP) tools to the problem of optimal siting and sizing of distributed generators in a distribution network. Here three methodologies for solving the DGPP via mixed-integer linear programming (MILP) and mixed-integer nonlinear programming (MINLP) approaches are compared. The single MILP approach uses the well-known DC linear approximati...

Regardless of the shortcomings and criticisms world university rankings, these metrics are still widely used by students parents to select universities attract talented researchers, as well funding. This paper proposes a new mixed-integer programming model for ranking universities. The approach alleviates one -- issue ``arbitrariness'' weights aggregation individual criteria (or indicators) uti...

We study the complexity of computing the mixed-integer hull conv(P ∩ Z ×R) of a polyhedron P . Given an inequality description, with one integer variable, the mixed-integer hull can have exponentially many vertices and facets in d. For n, d fixed, we give an algorithm to find the mixed integer hull in polynomial time. Given P = conv(V ) and n fixed, we compute a vertex description of the mixed-...

Masalah sampah merupakan masalah yang sangat memprihatinkan di suatu daerah. Hal ini dikarenakan salah satu indikator dapat memberikan dampak negatif bagi manusia dan lingkungan sekitar jika tidak ditangani dengan baik. Model alokasi lokasi model digunakan untuk menentukan fasilitas guna meminimalkan biaya distribusi. Jika dikaitkan permasalahan sampah, maka jumlah Tempat Pembuangan Sementara (...