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Create a graph which keeps neighboring nodes sorted by id #110

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pankajgupta opened this issue Jan 15, 2015 · 5 comments
Closed

Create a graph which keeps neighboring nodes sorted by id #110

pankajgupta opened this issue Jan 15, 2015 · 5 comments
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enhancement feature request

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@pankajgupta
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In some applications one needs fast intersections of adjacency lists and fast search of whether a node v is a neighbor of a node u. In such cases, a graph that keeps the adjacency list in sorted order would be great.

This should work for both in and out directions in both ArrayBasedDirectedGraph and SharedArrayBasedDirectedGraph.
@szymonm
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szymonm commented Jan 16, 2015

What you want is:
For ArrayBasedDirectedGraph:
To keep in every node an Array of neighbors (only those existing). Use Binary Search for lookup, linear intersection. Right?

@pankajgupta
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Yes, except also for others like SharedArrayBasedDirectedGraph. cc @plofgren as he was interested in this.

@pankajgupta
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Is anyone working on this issue? If not, I can start working on it soon.

@szymonm
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szymonm commented Jan 18, 2015

I can work on ArrayBasedDirectedGraph

szymonm added a commit to szymonm/cassovary that referenced this issue Jan 25, 2015
@szymonm
Resolves twitter#110.
5b1548f 
Allows nodes that store neighbors sorted in ArrayBasedGraph
@AnishShah
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I'll try to work on SharedArrayBasedDirectedGraph .

szymonm added a commit to szymonm/cassovary that referenced this issue Jan 27, 2015
@szymonm
Resolves twitter#110.
d9751bf 
Allows nodes that store neighbors sorted in ArrayBasedGraph
szymonm added a commit to szymonm/cassovary that referenced this issue Feb 1, 2015
@szymonm
Resolves twitter#110.
a3b24e1 
Allows nodes that store neighbors sorted in ArrayBasedGraph
szymonm added a commit to szymonm/cassovary that referenced this issue Feb 1, 2015
@szymonm
Resolves twitter#110.
d37c449 
Allows nodes that store neighbors sorted in ArrayBasedGraph
pankajgupta added a commit that referenced this issue Feb 6, 2015
@pankajgupta
Merge pull request #133 from szymonm/sortedNeighbors
6c36433 
Resolves #110.
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@pankajgupta @AnishShah @szymonm