[Neo4j] Use of LuceneFulltextIndexBatchInserter
peter.neubauer at neotechnology.com
Fri Aug 13 23:21:35 CEST 2010
apart from tweaking the system, we have been thinking about a
double-sided A* that would start from both ends and route. Not sure
how advanced that would be but I think it could come in handy. If you
have time later on, that might be an interesting place to investigate
some contribution to the graph-algo package :)
Overall, the field of routing algos seems to be a very wide one, so I
think once things are working at your end, there is a whole lot
regarding better suitable algos taking into account special context
and constraints that could be done ...
COO and Sales, Neo Technology
Phone +46 704 106975
http://www.neo4j.org - Your high performance graph database.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Fri, Aug 13, 2010 at 11:14 PM, Paddy <paddyfitz at gmail.com> wrote:
> Hi Peter,
> Nearly there :) I'm going to make a few changes to try increase the speed of
> the a*star route finder, as the current graph is 1.2gb with 1million nodes
> and 10 million relationships.
> - reducing the database size by only including bus routes between 7am to 1pm
> on Mondays instead of every bus route for every day
> - configuring the neo4j_config.props for traversal and injecting it in the
> spring bean
> - creating less relationships by adding less walking connections between
> stops e.g only add connections for stops within 50m
> this will reduce the size of the db and hopefully this will speed up the
> path finding and as it can take 5-10 seconds for long routes with the
> current graph.
> I will let you know
> On Thu, Aug 12, 2010 at 11:27 PM, Peter Neubauer <
> peter.neubauer at neotechnology.com> wrote:
>> Glad you solved it!
>> Btw, is the site now officially online?
>> /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://www.neo4j.org - Your high performance graph database.
>> http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
>> On Fri, Aug 13, 2010 at 4:38 AM, Paddy <paddyfitz at gmail.com> wrote:
>> > Hi,
>> > so I just needed to use :) :
>> > LuceneFulltextIndexBatchInserter index = new
>> > LuceneFulltextIndexBatchInserter( inserter );
>> > Good batch insert example @
>> > Paddy
>> > On Wed, Aug 11, 2010 at 8:47 PM, Paddy <paddyfitz at gmail.com> wrote:
>> >> Hi,
>> >> I would like to use the LuceneFulltextIndexBatchInserter instead of
>> >> the LuceneIndexBatchInserter to allow fulltext lucene indexing.
>> >> How can I initialize the LuceneFulltextIndexBatchInserter ?
>> >> the example on http://wiki.neo4j.org/content/Batch_Insert gives an
>> >> for the LuceneIndexBatchInserter but not
>> >> for LuceneFulltextIndexBatchInserter
>> >> LuceneIndexBatchInserter indexService = new
>> >> inserter );
>> >> thanks
>> >> Paddy
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