Online product recommendations using Hadoop

Online product recommendations using Hadoop

One of the leading portals on BigData, Dataconomy, had an interview with a colleague of mine on product recommendations systems. These are systems aimed towards personalizing content and recommending the ‘right’ products, in other words products that inspire customers. The article – The Science Behind the Finding the Perfect Product – is a nice read that covers quite some areas.

Stack of Hadoop nodesAt bol.com we use Hadoop for batches, and (more...)

Article on integration infra components published in OTech magazine

Article on integration infra components published in OTech magazine

article OTech magazineDuring Oracle Open World 2013 OTech magazine was launched. OTech is a new independent magazine for Oracle professionals. The magazine’s goal is to offer a clear perspective on Oracle technologies and the way they are put into action. As a trusted (more...)

Lean, agile and Software development reading list of 2013

Lean, agile and Software development reading list of 2013

In this blogpost I’ll share a list of books I read during the first six months of 2013.

Hadoop – The definitive guide

Hadoop the definitive guideThis book proved very useful to get an introduction and solid background in Hadoop. I was reading it (more...)

VirtualBox – Install Ubuntu 13.04

VirtualBox – Install Ubuntu 13.04

To install Ubuntu 13.04 in a fresh VirtualBox image, create a VirtualBox image as described in the blog post on installing Ubuntu 11.04 in VirtualBox. Focus on the Prepare Ubuntu install in VirtualBox section.

In the latest versions of VirtualBox you can (more...)

VirtualBox solved VERR_VMX_MSR_LOCKED_OR_DISABLED

VirtualBox solved VERR_VMX_MSR_LOCKED_OR_DISABLED

VirtualBox Manager VERR_VMX_MSR_LOCKED_OR_DISABLEDWhile creating a Ubuntu 12.10 machine VirtualBox I ran into an error – VirtualBox VERR_VMX_MSR_LOCKED_OR_DISABLED – on my company issued HP ProBook. This halts the startup process of the virtual machine. You won’t be able to use it.

Here is the complete log and a screenshot:


(more...)

Upgrade iPad2 to iOS6.1 screenshots

Upgrade iPad2 to iOS6.1 screenshots

Apple updated iOS to 6.1. The update of the iPad to iOS 6.1 can be started from iTunes or directly in the Settings app (General -> Software Update).

On Apple’s support pages, it is stated that the new version will have:

Amazon’s best sold laptop runs Linux

Amazon’s best sold laptop runs Linux

Amazon’s best sold laptop runs Linux! And I must admit that I was surprised to discover this today. It has been the for almost three months today.
Amazon best sold laptop runs LinuxAmazon best sold laptop runs Linux

It’s Samsung’s ARM-powered, Linux-based Chromebook. This laptop has at least three great advantages:

Maak in 3 stappen een webshop met de bol winkelwidget (dutch)

Maak in 3 stappen een webshop met de bol winkelwidget (dutch)

Als je je bij bol.com aanmeld als partner kun je in drie stappen een webwinkel in elkaar klikken. Hiervoor gebruik je de zogenaamde Bol winkelwidget.

  1. Kies menu-items. Per menu item kun je op basis van een selectie van (more...)

Forrester on Dynamic Case Management Q1 2011

Forrester on Dynamic Case Management Q1 2011

What Oracle and some other BPM and ECM vendors call Adaptive Case Management – ACM – is called Dynamic case management by Forrester and others. The notion of a case and the need for these systems emerge from requirements elicited by existing Business (more...)

Configure BPM engine to publish to BAM

Configure BPM engine to publish to BAM

By default the Oracle BPM engine (Business Process Management) is configured so it won’t publish events to BAM (Business Activity Management). So should you choose to use BAM and use these great dashboards, you have set the DisableActions property to false/empty. Here is (more...)