Calculate the charitable contribution allowance for the current year.
January 16, 2018
Al-Haddad & Kotnour (2015) describes the change models of Kotter and Lewin. In an essay, compare and contrast these change models or any other early research that focuses on individual behaviors and resistance to change.
January 16, 2018

Algorithm Design

Algorithm Design

  • Jon Kleinberg, Cornell University
  • Éva Tardos, Cornell University

question (see attachment):

In a standard minimum s-t cut problem, we assume that all
capacities are nonnegative; allowing an arbitrary set of positive and negative capacities results
in a problem that is computationally much more difficult. However, as we’ll see here, it is
possible to relax the nonnegativity requirement a little and still have a problem that can be
solved in polynomial time.
Let G = (V, E) be a directed graph, with source s ∈ V , sink t ∈ V , and edge capacities {ce}.
Suppose that for every edge e that has neither s nor t as an endpoint, we have ce ≥ 0. Thus
ce can be negative for edges that have at least one end equal to either s or t.
Give a polynomial-time algorithm to find an s-t cut of minimum value in such a graph.
(Despite the new nonnegativity requirements, we still define the value of an s-t cut (A, B):

X
(u,v)∈E
u∈A, v∈B
c(u,v)

 

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