Comments on: Neo4j Graph Database vs MySQL

By: Finally, Official Start of My Thesis at Salesforce.com | Highlighting News Feeds in Social Networks

Sat, 21 Jan 2012 02:23:36 +0000

[…] A publish/subscribe system seems promising, but how can I combine it with a recommender system? Graph databases are good for querying the social graph, but key-value stores could also be a good choice. Or maybe a hybrid system is […]

By: Finally, Official Start of My Thesis at Salesforce.com | Highlighting News Feeds in Social Networks

Sat, 21 Jan 2012 02:23:36 +0000

By: Rafał Wasielewski

Rafał Wasielewski — Mon, 26 Dec 2011 05:59:13 +0000

It’s normal that natural form of representation that kind of data is a graph – performance will be always better. I worked on navigation project which was on mysql too. We have really big problems with performance. One route calculation took 42 seconds. A bunch of developers tried to optimize it, when i was trying to convince old method architects to use neo4j. When they gave up at optimalization i get 2 weeks for test neo4j. The result was 5-50ms in calculation. After that i have made some modifications in graph-algo module for navigation purposes. This navigation is socially enabled so it’s ready to work fast. One annoying thing for me is that you can’t use neo4j in embedded mode and connect with webadmin to observe your database. I am waiting or I will write GIS routing on neo4j in the neo4j-spatial module. The importing from OSM is working few months ago, so maybe i will try to expand it.
My bechelors work subject is not yet formed. I said only that it would be Scala and GIS 🙂

By: Rafał Wasielewski

Rafał Wasielewski — Mon, 26 Dec 2011 05:59:13 +0000

By: how to combine Neo4j with GWT and Eclipse

how to combine Neo4j with GWT and Eclipse — Mon, 09 May 2011 07:23:29 +0000

[…] stated before I did my first testings with Neo4j. Now I wanted to include Neo4j to GWT which is actually very straight forward but for some reasons I […]