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Ego Network using Gremlin

发布于 2020-04-13 10:51:23

I'm new to gremlin and have been working on creating an ego network using Gremlin.

Ego-alter connections are pretty easy to find, but the problem lies in finding alter-alter connections. Is there a way to write a query which extracts all the alter-alter connections along with ego-alter connections in a n-radius ego network ?

enter image description here

For example in the Graph of the gods. 1-Radius ego network for 'jupiter' has ego-alter connections as 'Jupiter-neptune', 'Jupiter-pluto'. While the alter-alter connection is 'Neptune-Pluto'. How do I retrieve these connections.

Thanks in advance.

Questioner
Shubham Yadav
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gremlify 2020-02-22 17:46

This is my attempt for finding the 'alter-alter' connections

g.V().has('name', 'jupiter').as('ego').repeat(out()).times(1).emit()
.dedup().aggregate('alter')
.as('from').out()
.where(within('alter'))
.as('to').select('from', 'to').by('name').dedup()

The number inside the times step is your redius.

In addition I created the graph in gremlify, so you can play with this query:

https://gremlify.com/1p

Machavity 2020-02-04 03:17:20

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Shubham Yadav 2020-02-04 19:22:19

You should add emit() after times(1) so that the loop outputs all the nodes. Currently it only outputs nodes from the last n-th hop.

Shubham Yadav 2020-02-06 15:04:18

There is another bug which results in only alter-alter connections especially in 1-hop network, because it doesn't aggregate source vertex. To resolve this write 'emit()' before repeat step.

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