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Re: [igraph] Induced subgraph isomorphism
From: |
Tamás Nepusz |
Subject: |
Re: [igraph] Induced subgraph isomorphism |
Date: |
Tue, 11 Sep 2012 21:49:22 +0200 |
Hi Raphael,
We have recently added the LAD subisomorphism algorithm which is capable of
finding induced subgraph isomorphisms. This is currently included only in the
source repository but no release have been made yet. If you are willing to use
a nightly snapshot of igraph and you don't mind compiling it yourself, grab the
latest nightly from here:
http://code.google.com/p/igraph/downloads/list
Use the snapshot from the 0.7 tree. If you use igraph from R, you only need the
GNU R source package. If you use igraph from Python, you will need both the C
library and the Python source package. The name of the function is
igraph_subisomorphic_lad in C, subisomorphic.lad in R and
Graph.subisomorphic_lad in Python.
Best,--
T.
On Tuesday, 11 September 2012 at 21:44, Raphael Clifford wrote:
> I realise this is asking a lot but, I was wondering if anyone had (or
> had any plans to have) implemented a heuristic for induced subgraph
> isomorphism. If I am correct, the current VF2 implementation would
> say that a-b-c-d is isomorphic to a subgraph of a 4-clique while it is
> not an induced subgraph. (See
> http://en.wikipedia.org/wiki/Induced_subgraph_isomorphism_problem.)
>
> Raphael
>
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