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Facets tracks which entities, or entities and terms appear together, when, and how often.

Keyword search

The Document keyword filter search box is the place where you enter keywords or document feature values to define your criteria.

When you type your keyword query, this automatically updates the entity columns and shows the top ranking entities for the current selection.

Find what concepts relate to a particular term and how they co-occur in the news articles, for example what concepts relate to the term "recession"?

Type "recession" in the Document keyword filter search box.

The following top ranking entries appear in the entity columns: "Ben Bernanke", "Gordon Brown" and "Alistair Darling" (for People), and "United States" and "UK" (for Locations). It means that the word "recession" co-occurs with these entities in the same context.

To clear your query, click the Clear link in the right hand corner of the screen or just press DELETE.

Co-occurrence of entities

The columns (e.g. People, Organizations, etc.) represent the top ranking entities of particular types in the set of documents. The entity types are classes in the domain ontology. When you enter parts of entity names or when you select an entity or type a keyword, the facets are refreshed.

When you start typing an entity in the empty search box of each column, you get an auto-complete list of suggestions with the typed part of the entity name in highlight.

Find information about a specific organization, for example the "Federal Reserve".

Start typing "fed.." in the search box of the Organizations column and select the relevant entry for the list of suggestions such as "Federal Reserve", "Federal Deposit Insurance", "Federal Bureau of Investigation", etc.

When you select an entity, it appears in the Selected items list. This limits the list of entities in each column to only the entities occurring together with it. The Related concepts column shows updated information on concepts semantically related to the selected entity. This column is not configurable.

Finally, the document count is refreshed showing only the documents in which this entry appears.

Find information about a specific organization and a political figure, for example the Federal Reserve and Barack Obama.

Type "Barack Obama", "Federal Reserve" in the search box of the Persons and Organizations entity class columns respectively.

To change the restrictions of your query and remove an item from the Selected items list, just use the icon and the item is added to the Recent items history.

To add it back to the Selected items list, just click the icon next to the entry.

The auto-complete function will not offer you a list of suggestions for numbers as it does for letters. If the name of the organization you are looking for starts with a number as in, for example "454 Corporation", when you start typing "454" in the search box of the Organizations column, there will be no matches found. The same will occur if you want to search in the Happening column for an event by date.

Co-occurrence of entities and keywords

If you want to use the full potential of Facets, make your search criteria more complex by creating combinations of keywords and entities. To define your search, just type or select entities from the columns and type keywords in the Document keyword filter box.

Find all documents that have a specific term in their title and mention location and person in their body, for example the term "recession" to co-appear with Asia and Barack Obama.

Select "Asia" and "Barack Obama" from the respective columns and type "TITLE:recession" in the Document keyword filter box.

Configuration options

The columns of entity classes are optionally configurable. To specify the entity class for each column, click the Options link in the top right corner of the Facets screen. This opens a new Options screen that shows the default columns. To select new categories, click the arrow next to each column heading and choose from the drop down list representing the ontology classes. Click Apply and then Close.

  • To add more columns, click the icon and a new field appears. Select a category for it and click Apply. Now you have four columns in the Facets screen.
  • To go back to the default number of columns, click the icon and you have three columns again.
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