Re: [Neo] displaying very large graph

2010-03-22 Thread Jonny Wray
A couple I've come across recently that I'd never seen mentioned before: http://gephi.org/ http://www.ondex.org/ Jonny On Thu, Mar 18, 2010 at 4:13 PM, Laurent Laborde wrote: > i found a page that link a lot of graph visualisation tools : > http://www.mkbergman.com/414/large-scale-rdf-graph-vi

Re: [Neo] Something fun to try in neo4j : collatz conjecture

2010-03-22 Thread Laurent Laborde
On Fri, Mar 19, 2010 at 10:20 AM, Laurent Laborde wrote: > thank you peter. > Following the various link, i found http://www.cytoscape.org/ > Look very promising !! i'll try this weekend :) 3 days later, i'm still populating neo4j like a crazy, trying to compute the collatz conjecture up to 100 m

Re: [Neo] Unable to memory map

2010-03-22 Thread Marc Preddie
Hi, Previous to the 1.0 release, there was just a warning message, now with the 1.0 release there is a warning message, along with an exception describing the warning. Everything still works, but we would really like and need the performance boost that memory mapping may provide. I'll try to get

Re: [Neo] Indexing on Doubles in Neo4j

2010-03-22 Thread Rick Bullotta
Maybe this? http://components.neo4j.org/neo4j-graph-algo/apidocs/org/neo4j/graphalgo/cen trality/package-summary.html -Original Message- From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On Behalf Of Alex D'Amour Sent: Monday, March 22, 2010 5:06 PM To: Neo user di

Re: [Neo] Indexing on Doubles in Neo4j

2010-03-22 Thread Rick Bullotta
Alex, due to floating point precision issues, you might be best off determining some type of integral rounded or scaled key as you suggest. If you end up using the Lucene indexing engine, you'd probably want to do something like this anyway, since indexing is string-based under the hood. That sai

[Neo] Indexing on Doubles in Neo4j

2010-03-22 Thread Alex D'Amour
Hello all, I'm working on an application where it would be nice to perform lookups on a graph database based on real-valued properties. For example, if I have a social network, and have assigned real-valued centrality measures to each node, I'd like to be able to choose all vertices whose central

Re: [Neo] Neo4j RESTful traversal API

2010-03-22 Thread Alastair James
Cheers Peter. Al On 22 March 2010 15:26, Peter Neubauer wrote: > Btw, > the wiki etc is up again - sorry for the inconvenience! > > Cheers, > > /peter neubauer > > COO and Sales, Neo Technology > > GTalk: neubauer.peter > Skype peter.neubauer > Phone +46 704 106975 > LinkedIn

Re: [Neo] Neo4j RESTful traversal API

2010-03-22 Thread Peter Neubauer
Btw, the wiki etc is up again - sorry for the inconvenience! Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http:

Re: [Neo] Problems installing neo4j.py

2010-03-22 Thread Erik Ask
No, but I haven't tried especially hard either. Quick check now, the contents of jython2.5/Lib/site-packages/classes is: geronimo-jta_1.1_spec.jar junit.jar lucene_core.jar neo4j-commons.jar neo4j-index.jar neo4j-kernel.jar neo4j-remote-graphdb.jar import works fine, its not until i actually do s

Re: [Neo] Unable to memory map

2010-03-22 Thread Tobias Ivarsson
Hi, We have seen this message before emitted as a warning from Neo4j. Are you seing this as a warning as well, or are you getting an exception thrown to your application code? It's hard to deal with these errors since nio only throws IOException, and not any more semantic information than that, I

Re: [Neo] Problems installing neo4j.py

2010-03-22 Thread Tobias Ivarsson
Did you make any progress on this? I haven't been able to reproduce the problem. On Tue, Mar 16, 2010 at 11:01 PM, Erik Ask wrote: > I'm away from the computer in question now, but I did have that > directory, and it did contain files. I've also tried installing to a > directory in my home direc

Re: [Neo] Neo4j RESTful traversal API

2010-03-22 Thread Alastair James
Hi there Andrew / Peter Yes, I did look at your phpjavabridge examples, excellent work. Glad you got it working. However its not a method that appeals to me. It is, after all, just another network protocol, and I would prefer to use HTTP as the network protocol as its a) easy to understand b) tra

Re: [Neo] Neo4j RESTful traversal API

2010-03-22 Thread Peter Neubauer
Guys, we are working on getting the site up again - our provider changed servers on us! Sorry for the inconvenience! Regarding REST, we are back on it starting this week, shortly Mattias will outline our way forward and ask for input from you all, so tune in and contribute! Good to see some early

Re: [Neo] Neo4j RESTful traversal API

2010-03-22 Thread andrew . potter
Alastair, that sounds very cool. I'm very interested in getting Neo4j to workwith PHP as well. And like you I've had to put development onto the back burner for a while. I'd like to help somehow but with your specific question about traversal, I'm not sure I can be of much help. I don't know i

[Neo] Neo4j RESTful traversal API

2010-03-22 Thread Alastair James
HI there. Loving Neo4j, but been putting off using because was no * straightforward* way to use from PHP. I even started writing my own RESTful API, but never found the time to finish it off! However, I am excited that there is now a (semi?) official one in the works, even if it is early days. I