Michael, very good point. thank you
David, I am simply asking from a general perspective, in a recommendations
based system, how does escape from the feedback loop that is generated from
a successful recommendations engine suggesting clothes, then those clothes
get purchased more, then the recom
The load2neo plugin might help you (http://nigelsmall.com/load2neo). It
uses Geoff (http://nigelsmall.com/geoff) which can represent unique nodes.
Cheers
Nigel
On 3 January 2014 16:04, Michael Hunger
wrote:
> How much data do you want to insert?
>
>
> Am 03.01.2014 um 16:58 schrieb David Blaney
How much data do you want to insert?
Am 03.01.2014 um 16:58 schrieb David Blaney :
> Hi,
>
> Is it possible, using the Java API, to bulk insert nodes with a unique
> property name?
>
> I have been able to get the bulk insert and the create unique functionality
> working separately but the
Hi,
Is it possible, using the Java API, to bulk insert nodes with a unique
property name?
I have been able to get the bulk insert and the create unique functionality
working separately but the integration seems impossible.
Maybe it is unsupported or I am missing something Any ideas?
Tha
> The only way I think where you get them to "not-mix" is to never return
database objects from a cypher query, just primitive values, collections
and maps. Like it currently is in the http API.
That's exactly what I'm suggesting. It'd be a pretty big change, but
that's the way to do it, and h
Fully agree with you. In both regards. Cypher will get smarter and faster over
time but you will always be able to beat it with hand written assembler (aehm
SPI code) for certain use-cases (the 10% or 5% case hopefully).
The only way I think where you get them to "not-mix" is to never return
da
I get what you're saying with "being between worlds", and why that requires
you to use transactions.
General database nerd stuff ahead...correct me if I'm wrong on this, but...
Cypher is a declarative language, where you specify what you want, but you
don't get to specify how the engine goes ab
Hi,
I am using BatchInserterIndex to ingest a large amount of data to Neo4j DB.
I intend to add nodes to a TimelineIndex (Lucene) during the batch. Now, in
the normal way, TimelineIndex takes (node, long) to add in the index. It
probably is using the key 'timestamp' internally. (Checked in
Luc
Hi,
I am using BatchInserterIndex to ingest a large amount of data to Neo4j DB.
I intend to add nodes to a TimelineIndex (Lucene) during the batch. Now, in
the normal way, TimelineIndex takes (node, long) to add in the index. It
probably is using the key 'timestamp' internally. (Checked in
Luc
Hi all,
I am working on graph data base in Arabic and during my search I found
Neo4J as a good tool for Graph DB,
I have downloaded Neo4j 2.0 and it works with Arabic and I have the
following comments may be some one can help??
1- Did any one used Neo4J in R2L Lang i.e. Arabic (sample or real pro
Also the data the recommendation is based on is not static and not only relying
on the recommendations.
So there are people buying, liking etc. new products come in some are promoted,
there are hypes etc.
Lots of variables that affect the data that is fed into the recommendation, and
then peop
How many knows relationships do you have per person?
I think you should also check your configuration, 4GB of RAM is a bit on the
low side, you might end up using swap all the time.
You should have enough non-heap RAM for some decent memory mapping of your
store-files
And enough heap for sensibl
Right,
the same happens in Neo4j if you use cypher (comparable to SQL).
But if you use the java-API you kind are below the query language level
(somewhere where you would never get in a rdbms) and there tx-management is
manual.
In general we want to move away from the Java-API to a more query l
Javad,
The graph database would probably just store the list of things you could
choose amongst for your recommendations; a graph database doesn't do
recommendations, and hence whether or not those recommendations would
reenforce one another would depend on the kind of algorithm you're using
f
Neo4j version : 2.0.0-M06 .
Operating System : linux
Ram : 4GB
sir we get slow when we get 2nd degree friends for a user.Then most of
People Suggest to create more relation :
So we are creating more relation to make it faster.
Code for creating relation : Using Java API :
public void addFriend
Thanks to both of you for those responses. They totally make sense.
Like many people, I'm riding the learning curve with graph databases. I've
been doing RDBMS work forever, and only working with neo4j for about a year
and a half, and there's still so many things I don't know yet.
RE: the use
Hi Mehmet,
I hope following answers will be helpful:
*Answer 1*
START n=node({startnode}), m=node({endnode})
MATCH p=(n)-[r]->(m) RETURN r;
*Answer 2*
START n=node:node_auto_index("id:*")
WHERE NOT (n-->m)
RETURN n;
-Sukaant Chaudhary
On Fri, Jan 3, 2014 at 5:33 PM, Mehmet Simsek wrote:
>
ExecutionEngines are used to run Cypher. You don't need to use Cypher if
you don't want to--just don't run that last line. The Java API will respect
the unique constraint as well.
Wes
On Thu, Jan 2, 2014 at 10:11 AM, Alex Frieden wrote:
> Yes, but isn't that returning an executionengine when yo
You have to share more details.
what versions do you use
what is your stack
what APIs do you use
share the code to create the relationships
what is getting slow
how many concurrent users do you have
etc.
Sometimes a slowdown is related to doing just one single update per transaction
and having
Hi ...
Currently we have 1.5 million node and one relation : KNOW between
them.
Basic Model is : when a user register we add KNOW relation to all his
friends. (friends are :phone book friends)
Now its getting slow as user increase. so we want to add more relation
based on : COU
Hello everyone,
I'm newbie about Neo4j and I couldn't solve some problems. If you answer my
questions, I'll be very pleased.
My graph is very simple, there is only one type node and every node has
only one type property.
Node A is related with Node B and Node C is related with Node B and Node E
i
Hi
When i indexed a property with full text, the sdn
function findAllByPropertyValue does not return any result:
personRepository.findAllByPropertyValue("person_name", "name", "David
Yang"); //THIS DOES NOT WORKS
When find by:
personRepository.findAllByPropertyValue("person_id", "nric", "12345
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