On Tue, Dec 6, 2011 at 11:23 AM, ajinkyar kaleajin...@gmail.com wrote:
Although this is a graph based db, why is the range of graph algorithms in
GraphAlgoFactory so narrow currently ? Is there a focus on this aspect in
future releases ?
Is there anything in particular you are missing?
Hello,
We're building an application using mainly tree, more then real graphs, but
with sometimes some specific relationships between nodes of different trees.
We're kind of trying to use Neo4j for extended OLAP things (like including
an external dimension (i.e. a tree) inside another dimension
Hi Guys,
Just want to quickly give some feedback on the neo4j after some evaluation.
Overall, I like the neo4j a lot, but have decided not to use it.
Probably the primary reason is the tooling around Ruby. Don't get me wrong. The
neo4j.rb is just amazing. It really is.
I even contributed
On 12/7/11 21:53 , Andres Taylor wrote:
A subset of the graphs are trees, and they have a few problems that are
specific for them. I'm right now planning what needs to be added to Cypher
to make it play nice with your tree structures.
I'd love to know if you have hierarchical data, and what
On Thu, Dec 8, 2011 at 9:56 AM, Rickard Öberg
rickard.ob...@neotechnology.com wrote:
Here's a problem I had recently: I have an organizational structure
defined as a tree. On each level there might be cases assigned for
completion.
Given a OU I want to find all OU's that has the given OU as
On Thu, Dec 8, 2011 at 12:49 AM, Michael Hunger
michael.hun...@neotechnology.com wrote:
start shop=node(123), me=node(321)
match shop-[:sell]-item-[:like]-user,item-[r1?:like]-me
where r1 is null
return item
the missing part was the optional relationship for r1, which allows it to
be
On 12/8/11 17:19 , Andres Taylor wrote:
I'm guessing something like this:
start ou=node(1234)
match (ou)-[:CHILD_OU*..100]-(child_ou)-[:OWNER]-(case)
where case.status = CLOSED
return avg(case.completionTime)
Question is, will the OU itself be included? Or does this imply that
there *has*
On Thu, Dec 8, 2011 at 10:32 AM, Rickard Öberg
rickard.ob...@neotechnology.com wrote:
Ok, so with:
start ou=node(1234)
match (ou)-[:CHILD_OU*0..100]-(child_ou)-[:OWNER]-(case)
where case.status = CLOSED
return avg(case.completionTime)
that would give me what I want?
I think so.
nice,
thanks! Will prepare the testcases for the other case you were asking about.
Cheers,
/peter neubauer
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brew install
Hi,
I'm new to neo4j and graph databases and currently experimenting with a
video sharing application. One thing I don't see mention on the neo4j
list a lot is facetted search. Is it because it is trivial to implement
using graphs? I've used solr before, where I can return both search
results
Started to set it up here: https://github.com/neo4j/gremlin-plugin/issues/5
Feel free to add stuff to it.
Cheers,
/peter neubauer
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I was searching for community/cluster detection or maybe finding betweenness
centrality support. Is it there already? Can you please point me to classes
which I can use in writing my own code for the same.
--
View this message in context:
Hi, Nils.
We've implemented something like this here at ThingWorx, but we had to do so at
a layer above Neo4J since there, of course, were no built-in faceting
capabilities. One of the major challenges we faced was the opaque connection
from the Neo4J API to the underlying Lucene engine.
I recently saw the apache commons graph library but haven't looked into that.
http://commons.apache.org/sandbox/graph/
Probably just missing a neo4j adaptor.
Cheers,
Michael
Am 08.12.2011 um 13:54 schrieb Prajakta Kalmegh:
I was searching for community/cluster detection or maybe finding
Is anybody using the neo4j webadmin in embedded mode via
the WrappingNeoServerBootstrapper in Tomcat 6?
I have it successfully running within jetty and I just tried deploying to
Tomcat. The web admin loads up sometimes in tomcat, but if I keep
refreshing I get the following errors about half of
Nice!
BTW: Great work on the Neo4j .Net Client.
Marko.
http://markorodriguez.com
On Dec 7, 2011, at 9:14 PM, Romiko Derbynew wrote:
Finally thanks to Peter and Marko, the .Net Neo4jClient code has been
optimised to use short hand version of in('') and out('').
ChangeSet is
Hello,
Yesterday TinkerPop did another stable release. This release depends on Neo4j
1.5. Here are the notes for those that are interested:
New homepage design: http://tinkerpop.com
Blueprints 1.1 (Blueberry):
Thanks Marko,
will try to get Gremlin 1.4 into Neo4j ASAP, hopefully after the
weekend. Good work!
Cheers,
/peter neubauer
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It's ok, I figured a work around for this.
Maven was creating a WAR with the web admin JARs in WEB-INF/lib. If I
instead extracted the web admin static JAR so the contents were directly in
the WAR, it worked.
I had to first tell maven not to package the JAR by specifying provided as
the
Hi
Thanks for your great feedback !
The tooling support for JRuby has worked well for me and would
probably still use JRuby even if there was a good native MRI neo4j
wrapper.
But I have a java background and might not be spoiled with that
instant feedback loop of doing behaviour driven
Mmh, thanks for the feedback! This sounds like a note in the docs, or
some example project setup to make sure this is documented somewhere.
Care to set up a maven project with a testcase that we could pull into
the main build system to avoid further problems? I would like to have
a WAR based
Isn't there something like the background jvm thingy that exists for groovy,
scala and other languages? A server that the current process connects to, sends
code over and runs it in the JVM?
What happens if your run the 1400 rpec tests several times?
Perhaps we should ask Charles Nutter for
Yes there is - nailgun.
Charles has already been involved in many of the problems that Dmytrii
had with JRuby.
For a good summery of Dmytrii's problem, check his twitter feed.
For RSpec JRuby performance and Charles response, see
https://gist.github.com/1423288
/Andreas
On Thu, Dec 8, 2011 at
Hi,
We use the Neo4JCommitListener to synchronize some neo4j data back to a
database.
I have an issue when trying to deal with the delete events.
I delete nodes in a particular order in neo4j (it's a nested set, so down-up
), but when getting the events in the commitListener the order is not
Call for paper reminder, if you think on sending something, hurry up
deadline coming soon:
Important dates (all GMT+1):
Submission deadline: 23-12-2011
Notification of accepted speakers: 28-12-2011
Publication of the final schedule: 4-01-2012
Meetup: 5 of February 2012, Brussels, Belgium.
Is HTTP as a protocol the problem? Maybe, it does have some advantages
though.
I think we all agree the REST API is not finished yet.
We talked last week about Batch operations as a poor-man's replacement for
Transactions and the concerns that brought up.
I think the REST API will get there
Hey everybody,
I'm trying to write a query that returns a small subgraph around a type
system's sub-reference node, excluding relationships used to
define the in-graph type hierarchy.
Eg, given a graph
(0)-[:TYPE]-(1)-[:INSTANCE]-(2)-[:SOMETYPE1]-(3)
On 09/12/2011, at 8:15 AM, Andreas Ronge wrote:
Yes there is - nailgun.
Charles has already been involved in many of the problems that Dmytrii
had with JRuby.
For a good summery of Dmytrii's problem, check his twitter feed.
For RSpec JRuby performance and Charles response, see
On 09/12/2011, at 7:43 AM, Michael Hunger wrote:
What happens if your run the 1400 rpec tests several times?
I don't get the point of running it several times. I need to run one/couple of
spec as soon as possible and see the feedback.
Which older gems were problematic for you?
It's not
On 09/12/2011, at 9:22 AM, Max De Marzi Jr. wrote:
Is HTTP as a protocol the problem? Maybe, it does have some advantages though.
Yes. Definitely. There are always pros/cons for everything.
I think we all agree the REST API is not finished yet.
We talked last week about Batch operations
On Fri, Dec 9, 2011 at 12:12 AM, Matt Luongo m...@scholr.ly wrote:
Hey everybody,
I'm trying to write a query that returns a small subgraph around a type
system's sub-reference node, excluding relationships used to
define the in-graph type hierarchy.
Eg, given a graph
Hi All,
I am new to neo4j and I really like it.
I love the fact that I am able to use Astar for my search when running with
org.neo4j.kernel.EmbeddedGraphDatabase in-memory.
With A-star, I am able to use dynamic values in the computation of the
shortest path at run time.
The in-memory version
Hi Israel,
Neo4j doesn't have an in-memory mode as you allude to - it's the same
database whether you run it remotely or in your app (or container).
Is your reasoning because the app itself has a large footprint such that it
contends with Neo4j within the same process?
Jim
Hi Jim,
I was just wondering how I can query the REST API for the shortest path b/w
2 nodes using Astar instead of Dijkstra
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Hi Dmytrii,
I would like to point out that spork does actually work with JRuby. From
what I can see, guard and guard-spork are now supported with JRuby as well.
Please take a look at the supported platform list here:
https://github.com/guard/guard-spork and here:
https://github.com/guard/guard
Andrés,
You are not the first one to run into this. g is an iterable of
relationships, and not a single relationship. Maybe we should make this a
valid query...
Anyway, with Cypher as it works today, you have to do this:
START a = node(2)
MATCH p = (a -[g*0..5]-b)
WHERE ALL(r in g WHERE
On 09/12/2011, at 2:44 PM, Vivek Prahlad wrote:
I would like to point out that spork does actually work with JRuby. From
what I can see, guard and guard-spork are now supported with JRuby as well.
Obviously, it doesn't. I don't even get to guard. And of course not with neo4j.
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