How hypotheses for Labeled Field elements are generated and assessed

Labeled Field hypotheses in ABBYY FlexiLayout Studio: generation and assessment, plus extra properties for Name, Gap, and Field subelements by field type.

A Labeled Field element is a compound element with pre-defined components. FlexiLayout Studio generates and assesses its hypotheses in the same way as for a Group element. For more information, see Hypotheses for Group elements.

Labeled Field hypothesis properties

A hypothesis generated for a Labeled Field element has the following properties:

Property	Description
Element name	The full name of the element.
Page	The number of the page on which the element has been detected.
Surrounding rect	The coordinates of the surrounding rectangle that encloses the region of the hypothesis.
Width	The width of the region of the hypothesis.
Height	The height of the region of the hypothesis.
Detected	Indicates whether the area of the element has been detected (true) or a null hypothesis has been generated (false).
From the best path	Indicates whether the hypothesis belongs to the best path in the tree of hypotheses (true) or not (false).
Pre-search quality	Indicates the quality of the hypothesis required for the hypothesis to satisfy the properties of the element, specified either directly or via Advanced pre-search relations.
Post-search quality	Indicates the quality of the hypothesis required for the hypothesis to satisfy the conditions in Advanced post-search relations.
Chain quality	Indicates the current quality of the segment of the chain of hypotheses, from the first subelement of the current group to and including the current subelement. The quality of the chain is calculated by multiplying the qualities of all the subelements in the chain. Chain quality makes it possible to compare rival chains.

Subelement hypothesis properties

Subelement hypotheses have all the properties of a Labeled Field hypothesis, plus the extra properties in the following sections.

LabeledField.Name subelement

Property	Description
Keyword	Indicates the keywords included in the hypothesis. For each keyword, the number of errors is indicated.

LabeledField.Gap subelement

Property	Description
Orientation	Indicates the orientation of the detected gap.
Histogram maximum in search area	Indicates the histogram maximum in the search area.
White Gap threshold	Indicates the calculated threshold to treat the gap as detected.
Histogram maximum within hypothesis	Indicates the histogram maximum in the region of the gap hypothesis.

LabeledField.Field subelement

A hypothesis generated for this subelement may have different properties depending on the type of field:

Field type	Property	Description
Any text	Text	The text of the hypothesis.
Fixed variants	Keyword	The keywords included in the hypothesis. For each keyword, the number of errors is indicated.
Number	Text	The text of the hypothesis.
Currency	Value	The detected numerical value.
Currency	Currency name	The detected name of the currency.
Date	Day	The detected day.
Date	Month	The detected month.
Date	Year	The detected year.
Phone	Number	The detected telephone number.
Phone	Prefix	The detected telephone prefix.
Regular expression	Text	The text of the hypothesis.

Related topics

• Search area
• Additional search constraints