P-center Solver

The P-center model assists in selecting p facilities from a set of candidate facilities (n) for various locations (m), based on the OD matrix (m x n).

The input table should contain the columns for distance matrix to candidate facilities, and optionally a column for distance to closest required facilities.

The P-center (Minimax) problem is solved using the PuLP package.

The node is based on the package PuLP and here are related tools and references:

Options

Distance columns for candidate facilities

The columns representing the distance matrix between demand lcoation to candidate facilities.

Distance column for nearest required facility

The Column indicating distance to the closest required facility.

Optimum p number

The optimum number of facilities.

Input Ports

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Distance matrix table (m rows X n columns) from demand locations(m) to (n-1) candidate facilities and the nearest required facilities.

Output Ports

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Candidate column names and chosen status (1/0).

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Installation

To use this node in KNIME, install the extension Geospatial Analytics Extension for KNIME from the below update site following our NodePit Product and Node Installation Guide:

v5.2

A zipped version of the software site can be downloaded here.

Plugin provider: SDL, Harvard, Cambridge US
Plugin version: 1.3.0.202412051033
On NodePit since: 2023-12-06
Last update: 2024-12-18
KNIME versions: From v5.2 to v5.2

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