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Associations can be "something that happens or is regarded as happening; an occurrence, especially one of some importance", "the outcome, issue, or result of anything", or "something that occurs in a certain place during a particular interval of time" (Definitions found here: http://dictionary.reference.com/browse/event). Within Infinit.e events are typically a combination of entities assembled in the form of Noun - Verb - Noun, e.g. "a car crashed into a building", "the plane flew to San Diego". In addition to the Noun - Verb - Noun form events can include geographic information (i.e., where an event happened) as well as a start and/or end time for an event. The following section describes how to specify the extraction of events from a data source using the Structured Analysis Harvester.
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Remember Note that at least one of the entity1/entity2/geo_index fields must point to an entity in the document (either extracted using Natural Language Processing or using the "entities" block of the Structured Analysis object). The different ways in which this can be achieved are described below. |
Basic Association Specification
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- entity1
A free form text field containing information about the event "subject", i.e. an entity's disambiguous name. - entity1_index
If present this is the "gazateer_index" field of the entity matching the entity1 disambiguous name above. - verb
A free form text field describing the event "verb" - verb_category
Also a free form text field describing the event "verb", but intended to group related verbs together (eg "travel" for verbs: "flew", "drove") - geo_index
If the event geotag maps into an entity from the parent document then this field is the "index" of that entity. The "geo_index" can also be directly specified as an entity index or an entity type (in "iterateOver" cases), and the geotag is then derived. - geotag
- lat
String containing a floating point representation of latitude - lon
String containing a floating point representation of longitude
- lat
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