Wordbol – A wordpress plugin integrating Apache Stanbol

This plugin integrates some of Apache Stanbol's features into your WordPress blog.

Features

• Generate links to Wikipedia articles automatically
• Generate maps with locations mentioned in the post
• Provide useful background information when writing your blog post
• Auto-tag your posts

How to use

1. Download plugin and copy to your plugin directory (usually this is /wp-content/plugins)
2. Set up your Stanbol instance to have an enhancement engine with at least:
3. One NER engine (tested with OpenNLP NER)
4. DBpedia Linking
5. DBpedia Dereferencing
6. A language detection engine
7. Open config.php, define:
8. STANBOL_INSTANCE to the correct HTTP endpoint (previously defined in step 2)
9. GOOGLE_MAPS_API_KEY to your Google Maps API key (get one at Google's API console)
10. Have a look at the other settings as well.

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StanbolEnhancer.php

Apart from being a plugin for WordPress, this project also offers a library, which queries an Apache Stanbol instance from PHP. You can use this to access Stanbol from within PHP. It's MIT licensed.

Usage

Run enhancer

$text = "The Stanbol enhancer can detect famous cities such as Paris " +
        "and people such as Bob Marley.";

// enhance text
$enhancer = new Wordbol\Enhancer();
$result   = $enhancer->enhance($text);

This will issue an asynchronous request to your configured Stanbol instance.

Determine language of text

// retrieve language
$language = $result->get_languages();
/*
$language = array(
  LanguageEnhancement("en", confidence = 100%)
)
*/

Retrieve all matched entities

// retrieve matched entities
$entities = $result->get_entity_annotations();
/*
$entities = EntityStorage(
  TextAnnotation("Merkel", start = 50, end = 56) =>
    array(
      Entity("http://dbpedia.org/page/Angela_Merkel",
             EntityType::Person, confidence = 90%),
      Entity("http://dbpedia.org/page/Merkel,_Texas",
             EntityType::Place, confidence = 30%)
    ),
  TextAnnotation("Barack Obama", start = 100, end = 112) =>
    array(
      Entity("http://dbpedia.org/page/Barack_Obama",
             EntityType::Person, confidence = 100%)
    )
)
*/

Retrieve further information about an entity

// retrieve special information about an entity
$info = $result->get_resource_info("http://dbpedia.org/page/Angela_Merkel");
/*
$info = array(
	"comment" => "Angela Dorothea Merkel,; née Kasner (born 17 July 1954) is the Chancellor of Germany and Chairwoman of the Christian Democratic Union (CDU) [...]",
  "depiction" => "http://upload.wikimedia.org/wikipedia/commons/2/2e/Angela_Merkel_2_Hamburg.jpg"
)
*/