Analyzes the case of every token (adds additional flags) and optionally adds a lower case normalized token to the interpretation graph.

Operates On:  Lexical Items with TOKEN and possibly other flags as specified below.

Stage can only be used as part of a manual pipeline or a base pipeline

Generic Configuration Parameters

  • boundaryFlags ( type=string array | optional ) - List of vertex flags that indicate the beginning and end of a text block.
    Tokens to process must be inside two vertices marked with this flag (e.g ["TEXT_BLOCK_SPLIT"])
  • skipFlags ( type=string array | optional ) - Flags to be skipped by this stage.
    Tokens marked with this flag will be ignored by this stage, and no processing will be performed.
  • requiredFlags ( type=string array | optional ) - Lex items flags required by every token to be processed.
    Tokens need to have all of the specified flags in order to be processed.
  • atLeastOneFlag ( type=string array | optional ) - Lex items flags needed by every token to be processed.
    Tokens will need at least one of the flags specified in this array.
  • confidenceAdjustment ( type=double | default=1 | required ) - Adjustment factor to apply to the confidence value of 0.0 to 2.0 from (Applies for every pattern match).
    • 0.0 to < 1.0  decreases confidence value
    • 1.0 confidence value remains the same
    • > 1.0 to  2.0 increases confidence value
  • debug ( type=boolean | default=false | optional ) - Enable all debug log functionality for the stage, if any.
  • enable ( type=boolean | default=true | optional ) - Indicates if the current stage should be consider for the Pipeline Manager
    • Only applies for automatic pipeline building

Configuration Parameters

  • normalize ( type=boolean | default=true | optional ) - If true, all tokens are normalized to all lower case
"normalize":false

Example Output

V--[Sentence]--V--[with]--V--[UPPER]--V--[and]--V--[LoWer]--V--[Words!]--V
^--[sentence]--^          ^--[upper]--^         ^--[lower]--^--[words!]--^


Output Flags

Note that flags are placed on every token as appropriate to the current token:

  • If the token is "President" then that token will have the TITLE_CASE flag.
  • If a new lower case normalized interpretation, "president" is added as an alternative; this alternative will have the "ALL_LOWER_CASE" flag.

Lex-Item Flags:

  • ALL_LOWER_CASE - All of the characters in the token are lower case characters.
  • ALL_UPPER_CASE - All of the characters in the token are upper case characters (for example, acronyms).
  • TITLE_CASE - The first character is upper case; all of the other characters are lower case.
  • MIXED_CASE - Handles any mixed upper & lower case scenario not covered above.
  • LOWERED - Applies only to tokens that were changed to all lower case; preexisting tokens with all lower case will not be marked with this flag.
  • TOKEN - Identifies that the Lex-Items produced by this stage are tokens and not text blocks.

Vertex Flags:

No vertices are created in this stage




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