Re-weighting Techniques for Graph Algorithms: Johnson's Algorithm and Primal-Dual Method
A common technique in algorithm analysis involves transforming a problem to a more tractable form while preserving its essential structure. This is often achieved by re-weighting elements, such as edges in a graph, using a potential function. The core idea leverages the telescoping property of differences: (\sum_{i=1}^n (a_i - a_{i-1}) = a_n - ...
Posted on Fri, 09 Oct 2026 16:03:33 +0000 by starnol