Tag Archive for 'linkeddata'

Configuring and Using the OSF Search API (Screencast)

In this screencast, I will show you how you can leverage the semantic power of the OSF Search endpoint into Drupal using OSF for Drupal. You will see how you can configure the OSF SearchAPI module, how you can turn any property into a filtering facet and how you can display the facets into blocks.

Then I will briefly show you how you can create new search results templates and how the template selection works using type inference.

Finally I will show you how you can enable and disable inference in the search feature, and how you can leverage the semantic structure of your data to change the relevancy of the search results returned. You have all the leisure to boost different characteristics of your data to return more relevant results to your users.

 


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Specifying Field Widgets for OSF Entities Fields (Screencast)

In this screencast, I will show you how you can use ontologies to specify the field types to use for the classes and properties we map into Drupal using OSF Entities mapping process. Once the field types will be configured for each Datatype property, I will run the mapping process to generate new fields that will use the configured field types. Once done, I will show you the impact of this configuration into the fields and fields instances that are being created into Drupal.

The second part of this screencast focus on the configuration of the field widgets that are being used by each field. Then I will update a few entities using the new forms. I will tell you how you can modify the form by re-ordering the fields, by changing their titles or other configuration options such as their cardinality.

OSF Entities supports the following 18 field types and 34 field widgets.

 


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Upgrading the Open Semantic Framework (OSF) Stack (Screencast)

With this screencast, you will see how you can update all the pieces that compose the Open Semantic Framework (OSF) stack. You will discover all the tools that are available to you to update the different programs. You will be able to update the following applications with the latest release or development code:

Here is the list of commands that have been run in this screencast:

; Upgrade Ubuntu
apt-get update
apt-get upgrade

; Upgrade the OSF Installer script
cd /usr/share/osf-installer
rm upgrade.sh
wget https://raw.githubusercontent.com/structureddynamics/Open-Semantic-Framework-Installer/3.0/upgrade.sh
chmod 755 upgrade.sh
./upgrade.sh

; Upgrade the OSF Web Services PHP API
./osf-installer --upgrade-osf-ws-php-api="3.0"

; Upgrade the OSF
./osf-installer --upgrade-osf-web-services-code-base

; Upgrade the Datasets Management Tool
./osf-installer --upgrade-osf-datasets-management-tool="3.0"

; Upgrade the Ontologies Management Tool
./osf-installer --upgrade-osf-ontologies-management-tool="3.0"

; Upgrade the Permissions Management Tool
./osf-installer --upgrade-osf-permissions-management-tool="3.0"

; Upgrade OSF for Drupal
cd /usr/share/drupal/
drush dl osf-7.x-3.x-dev -y
drush cc all

; Upgrade to a specific version of Drupal
drush pm-update projects drupal-7.26


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This blog is a regularly updated collection of my thoughts, tips, tricks and ideas about data mining, data integration, data publishing, the semantic Web, my researches and other related software development.


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