Highlighting Limitations

When you run a search for documents or within the viewer, highlighting results may look different, especially between Redaction view and the other views. This is due to the special technology required for Redaction view display.

Tip: If you do not see the expected highlighting, switch to Text view.

Limitations for highlighting in Redaction view

Stem and concept searches
When a concept or stem search is used, the search is transformed into a wildcard search for highlighting in Redaction view.
Fuzzy searches
Highlighting for fuzzy searches is over inclusive in Redaction view. For highlighting, a wildcard is added to the query term and the additional terms.
Characters with diacritical marks or other character variants
Words are not always highlighted in Redaction view. Only the most common variants are covered.
Very large documents
Highlighting is disabled in Redaction view for documents that contain more that 175,000 words.
Phrases containing special characters
Highlighting is not possible in Redaction view. For example, a common phrase in a matter with references to web sites is http www. In contrast to Text view, that ignores special characters and highlights http://www, Redaction view shows no highlighting because it does not ignore special characters.
Proximity search
Words that are part of a proximity search are highlighted everywhere.

Limitations for highlighting in Near Native and Productions views

Proximity search
If a page contains a proximity hit, words that are part of the proximity search are highlighted everywhere on that page.
Regular expression search only highlights single words
Like in the Axcelerate 5 keyword search, regular expressions can only be used to search for single words when you use the search box in Near Native or Productions view.
Near Native view only
Near Native view has a 50,000 word highlighting limit. Counts include search term highlighting and all other enabled highlighting types. When the limit is reached, highlighting is no longer active in the Near Native view and a message will alert you. Highlighting will still be active in the Metadata panel.
You are more likely to see this limitation if your search includes very common words that appear many times in a document. If this occurs and highlighting in Near Native view is important, separate your searches into multiple parts until the number of terms being highlighted for each search is under the 50,000 word threshold.

 

Viewer Limitations

Character Variants and Highlighting

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