This is the second entry of the series of blog posts about building an online recommendation system based on MongoDB and Mahout.
Here's a 15-minute tutorial for getting started with MongoDB on Ubuntu.
Here's an official tutorial hosted on Google code on OrientDB, a NoSQL database management system written in Java. . .
In part 1, we took a quick look at some initial configuration of InnoDB full-text search and discovered a little bit of quirky behavior; here, we are going to run some queries and compare the result sets . . .
RavenDB’s ability to analyze your queries and generate the required indexes on the fly has always been a great boon.
Here's an introduction to TouchDB, a CouchDB-compatible database engine.
As a globally-distributed database, Spanner provides several interesting features.
Here's a session from JavaOne 2012 that focuses on using NoSQL databases as a JMS message store in Java messaging applications. Databases covered include MongoDB, Redis . . .
Lately I bumped in the Wikipedia page dedicated to the Selection Sort algorithm and I found an interesting animation that shows its behavior.
I have been investigating the LevelDB project for the purpose of adding another storage engine to RavenDB. The good news is that there is a very strong likelihood that . . .
Some time ago I discovered, by the help of a colleague, a NoSQL database for SQL-server. More specifically a document oriented db-provider for SQL-server, written in C#.
A couple of weeks ago when I first started playing around with my football data set I was loading all the data into neo4j using the REST API via neography which was taking around 4 minutes to load.
This week around the NoSQLsphere, we found an interesting best practices list for Java devs, as well as an informative post by Martin Fowler on Schemalessness.
MongoDB 2.1 introduced the aggregation framework, a faster alternative to Map/Reduce for common aggregation operations. If you took a look at the documentation and examples, you may have . . .
For a month or two, I have been exploring Neo4J, a graph database built for storing huge amount of data. Other popular graph database, that I will be dwelling into is InfiniteGraph from Objectivity.
Today, learn how a rural farming community in England took the internet into their own hands, explore the history of curly braces, and take a look at every website ever.
We are excited to be sponsoring Heroku’s Waza 2013. Michael Hunger, Pernilla Lindh and I will be at the Neo4j lounge with our amazing zen sand coffee table, along with showcasing the Waza-Twitter graph.
Anyone who has heard of Redis has probably also heard of Resque, which is a lightweight queue'ing system.
I’m happy to announce that we are extending the capabilities of Couchbase further and are releasing the Couchbase Plug-in for Elasticsearch.
Built on our Non-Stop patented technology, Hadoop’s NameNode is no longer a single point of failure, delivering immediate and automatic failover and recovery whenever a server goes offline . . .
Here's a one-hour presentation on MongoDB with a focus on schema design.
Short prequisites. I'm working in my spare time on personal project, for current easiness and future scalability I chose MongoDB for data, programming language is Java . . .
As I continued playing around with football data, I wanted to write a cypher query against neo4j which would show me which teams had missed the most penalties this season and who missed them.
Here's a 1/2 hour video from Neo4j that serves as an introduction to graph databases. Topics covered include an overview of NoSQL tchnologies . . .
In many organizations, it's expected that any persistent data will be stored in relational databases that are managed by a central database management group . . .