I2 Analyst's Notebook 7 User Guide - ISS Africa -Investigation ...

Chapter 1: Defining Types
Assigning Semantic Types 1.3
Categories of
semantic type
and the
Library
Semantic types provide an additional layer of meaning to the information that is
stored in a chart. They help to categorize items which in the real world can be
grouped together as having similar properties. For example, the Person semantic
type is used to categorize all 'person-like' entity types such as Male, Female,
Person, Police Officer, and so on:
PERSON
Male Female
Person Police Officer
The semantic type implies that there is a relationship between 'person-like' entities
and that they are distinct from entities which depict cars and boats. It uses a
common category to bind the entities together, enabling analysis and data
alignment.
Semantic types are important for two reasons:
• they allow users to make use of semantic search and match capabilities
• they allow charts created with the current version of Analyst’s Notebook to
make use of any semantic analysis and data alignment capabilities offered in
future versions
You can assign semantic types to entity types, link types and attribute classes.
When a user creates a chart item in Analyst’s Notebook, the associated semantic
type is assigned automatically. When a chart is opened in Analyst’s Notebook, any
semantic information enables users to make use of the semantic Visual Search,
Search Bar, Find Matching Entities and List Items functionality.
Semantic types are assigned from the Semantic Type Library. The Semantic Type
Library has been developed by i2 for use with all of its products, ensuring that
semantic types are used consistently.
There are three categories of semantic type:
• Entity semantic types - all entity types use these semantic types; for example,
Person, Organization, Motor Vehicle, and so on.
• Link semantic types - all link types use these semantic types; for example,
Owner, Transactions, Telephone Call, and so on.
• Property semantic types - all attribute classes use these semantic types; for
example, Address, Telephone Number, Date of Birth, and so on.
i2 Analyst’s Notebook 7 User Guide: Customizing & Analyzing 25