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Archive for the ‘News’ Category

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neo4jとは

May 25, 2012 at 8:25 am PDT | Neo4jNews

neo4jはJavaベースの組み込み型のグラフデータベースエンジンでスウェーデンのNeo Technologyが提供するオープンソースソフトウェアだ。 なお、neo4jはオープンソースソフトウェアだが、ライセンスはAGPLv3となっている。そのため、neo4jを使用してオンラインサービスなどを構築した場合もソースコードを公開する必要がある。これを回避するための商用ライセンスが提供されている。利用にあたっては注意してほしい。 neo4jの最新版は2010年2月にリリースされた1.0となっている。本稿ではこのバージョンを使用する。 neo4jのダウンロードページよりneo4j-kernel-1.0-binary.zipをダウンロードし、アーカイブに含まれているneo4j-kernel-1.0.jarとgeronimo-jta1.1spec-1.1.1.jarをクラスパスに追加すれば利用準備は完了だ。 Mavenで使用する場合はpom.xmlに以下の記述を追加すればよい。

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Twitter Suggests Who To Follow with Interest Graph

May 22, 2012 at 7:29 am PDT | News

TechCrunch covers Twitter building out the “Interest Graph.” This is the first sign of Twitter getting serious about building its own interest graph. This is the social network’s first big move that shows it following...

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With Neo4j, High School Students receive Top Awards in European Science Competition Finals

May 21, 2012 at 10:42 am PDT | News

High school students, Till Speicher and Paul Wagner were honored with the 4th place prize at the "Jugend forscht" 2012 Finals, held in Erfurt, Germany on May 20.   Till and Paul presented their winning Typology system...

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New Google Knowledge Graph Gets Deeper into the Results

May 16, 2012 at 7:10 pm PDT | News

It’s all about the richness of connected data in Google’s new ’Knowledge Graph’ which will enable users to locate the correct search results and discover new information about the search.  Knowledge Graph is integrated into the search...

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Why I’m Excited About Using Neo4j for a CMDB Backend

May 16, 2012 at 6:29 pm PDT | News

By Willie Wheeler Zkybase is my first open source configuration management database (CMDB) effort, but it’s not the first time I’ve built a CMDB. At work a bunch of us built–and continue to build–a proprietary, internal system CMDB...

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Neo Technology Wins TiE50 2012 Award

May 16, 2012 at 3:32 pm PDT | FEATURED NEWSNews

Leading Graph Database Company Edges Out Over 2000 Entrants and 130 Finalists Worldwide to Earn Further Validation With Prestigious Award in Software Category Neo Technology, creators of Neo4j, the world’s leading graph database, today announced...

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Telenor: Neo4j to the Rescue

May 15, 2012 at 1:28 pm PDT | CommunicationsCustomersFEATURED NEWSNews

Telenor, one of the top 10 wireless telcos in the world, has posted a great story about NOSQL to the Rescue. In their own words: This is the story about how we solved our problem,...

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Tables to Graphs

May 15, 2012 at 1:08 am PDT | News

For anyone used to relational databases, the notion of a graph database may seem mystifying, inappropriate or just downright wrong. Nigel Small demonstrates how to begin the transition from a relational database philosophy into the graphic environment provided...

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The Connectedness of Relationships

May 12, 2012 at 12:16 am PDT | News

Max De Marzi has a great post on relationships. When working with relational databases, the join tables are sometimes treated as second class citizens. If they are lucky, they’ll get some additional fields, but are...

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Neo4j Tutorials with Examples

May 11, 2012 at 11:35 pm PDT | News

A number of readers have asked about Neo4j Tutorials and examples. The good news is that there are tons of them out there. We have organized Neo4j Tutorials all around the world. This full day...

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New Analyst Report from Bloor Research

May 9, 2012 at 5:31 am PDT | News

Philip Howard from Bloor Research has published his new post on Neo4j. He calls Neo4j “…the leading and most well-known commercial vendor in the graph database market.” If you haven’t heard of Bloor, it’s one of...

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The graph database market share leader?

May 5, 2012 at 2:07 pm PDT | News

Luca Garulli has published a post on the graph database market share. No one publishes revenue numbers, so he is relying on some second-order statistics. His conclusion: Neo4J is, without any doubts, the GraphDB market leader...

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Bloor Research: Graph Databases: Bigger Impact than Hadoop

May 3, 2012 at 5:21 am PDT | FEATURED NEWSNews

Philip Howard of Bloor Research has another great post on graph databases. He discusses the proposition that graph databases will have a bigger impact on the database landscape than Hadoop or its competitors. The point to...

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Bloor Research: What’s a graph? The next big thing!

May 2, 2012 at 4:58 am PDT | News

Philip Howard of Bloor Research has published a great post on why graphs and graph databases may be “the next big thing.” The answer: Graph Databases provide a more focused approach for addressing issues with regard...

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High School Students win First Place in National Competition with Neo4j Graph Database

May 1, 2012 at 6:51 am PDT | News

BIG Congratulations to Paul Georg Wagner and Till Speicher, two German high school students  who won first place in the Jugend Forscht Hessen competition for their Typology application based on Neo4j.  Typology  uses Neo4j to search 80GB Google...

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Neo4j 1.7 GA “Bastuträsk Bänk” released with Enterprise Turbo Package

April 20, 2012 at 3:52 pm PDT | News

Neo4j 1.7 GA, codenamed “Bastuträsk Bänk” is now

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Ebook – Good Relationships: The Spring Data Neo4j Guide Book (InfoQ)

March 19, 2012 at 4:00 pm PDT | News

With Spring Data, the ever popular Spring Framework has cultivated a new patch of ground, bringing Big Data and NOSQL technology like

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Breaking into the NoSQL Conversation

March 2, 2012 at 4:02 pm PDT | News

Wikipedia’s NoSQL page does mentions RDF Database as a category, but only lists a single RDF store! AllegroGraph and Virtuoso are also mentioned under the Graph database section, but none of the others.  In the upcoming book from Pragmatic Publishers, Seven...

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Now it’s VMware’s turn: Meet Spring Hadoop (GIGAOM)

February 29, 2012 at 4:04 pm PDT | News

Spring Hadoop is also open source, available under the Apache 2.0 license. More information on programming Hadoop jobs using Spring is available on the SpringSource blog. This isn’t the first time VMware has given Spring developers...

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Catch the buzz: Hadoop Hive is top of the Big Data charts (CloudPro)

February 28, 2012 at 4:06 pm PDT | News

A new index from Jaspersoft lets us know who are the big cheeses when it comes to Big Data It’s a Top 20 with the difference – it’s not the latest pop tunes but the...

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Using Gremlin and Transaction to Solve the Problem of Maximum Flow (DZone)

February 24, 2012 at 4:10 pm PDT | News

The maximum flow problem was formulated by T.E. Harris as follows: Consider a rail network connecting two cities by way of a number of intermediate cities, where each link of the network has a number...

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Beyond Hadoop: Understanding Big Data Options (IT Business Edge)

February 22, 2012 at 4:12 pm PDT | News

Well … you’re probably right to be suspicious and investigate, but the fact is, a lot of these solutions have been in the works for a while; also, some old approaches — enterprise search, for...

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Big Data Tools and Vendors (ITworld)

February 21, 2012 at 4:14 pm PDT | News

While big data systems offer flexibilities of scale at far more affordable prices then ever before, long-time data experts are also quick to point out that these newfangled big data systems are making use of...

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Six Degress of Kevin Bacon Using Neo4j and Ruby (Dzone)

February 21, 2012 at 4:13 pm PDT | News

Previously I showed you how to get Neo4j up and running with Ruby and how to find recommended friends on a social network. What about finding out how you are connected to someone outside of your friends...

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Origins of NoSQL = Not Only SQL

January 1, 2012 at 11:12 am PDT | NewsQuote

In an Oct 2009 tweet, Emil Eifrem, CEO and Cofounder of Neo Technology declares that NoSQL is Not Only SQL. https://twitter.com/emileifrem/status/5200345765 @samj @jeremyday Who are those people? Honestly want to know. I for one have tried REALLY...

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