Use Geolocation Based on Place Detection

Exalead CloudView is delivered with two resource files to enable geolocation based on place detection in your search results. They include a predefined list of cities with gps coordinates.

This section describes the procedures to follow to use geolocation based on place detection.

This task shows you how to:

See Also
Configuring Geographic Search

Step 1 - Add an Ontology Matcher and Annotation Manager to the Analysis Pipeline

  1. In the Administration Console, go to Index > Data processing > Pipeline name > Semantic Processors.
  2. Drag an Ontology Matcher processor to the list of current processors.
  3. Click the Ontology Matcher link to expand the view, and in Resource directory, enter:

    resource://namedentities/geoloc/geoloc.bin

  4. Add an Annotation Manager processor after the Ontology Matcher.
  5. Click the Annotation Manager link to expand the view, and in Resource file, enter:

    resource://namedentities/geoloc/selectmostfrequentgeoloc.xml (this resource uses the geoloc.bin resource defined above).

Step 2 - Create a New GPS Point Index Field

  1. Go to Index > Data model > Classes
  2. Click Add property and for:
    1. Name, enter selected_geoloc.
    2. Data type, select GPS point.
    3. Field type, select Dedicated field only.
  3. Expand Other advanced options and select Multivalued.

Step 3 - Add a Mapping Source and a Mapping Target

  1. Go to Index > Data processing > Pipeline name > Mappings
  2. Click Add mapping source and for:
    1. Name, enter the annotation name selectedGeoloc (this annotation is delivered by the annotation manager with the documentAnnotation attribute)
    2. Type, select Annotation.
  3. Click Add mapping target and for:
    1. Type, select index field
    2. Name, enter document_selected_geoloc



  4. Click Apply
  5. Import documents with your connectors.

Step 4 - Add the Google Maps Widget to Your Mashup UI Application

  1. In Mashup Builder, go to the /search page, and select the Design view
  2. In the Widgets panel, select Visualizations > Maps, and drag the Google Maps wid­get on the page.
  3. Click the Google Maps widget header. The widget properties panel opens at the bottom of the screen.
  4. In the Based on entries tab, edit location (2) with the following MEL expression: ${entry.metas["selected_geoloc"]}
  5. Click Apply.

You can now enter queries in your Mashup UI application and see all the locations detected in the search results on the Google Maps widget.