NoplagDocs

Match sensitivity

The small-match threshold and the quotes filter — what each does exactly, when to use them, and how they change the score.

Match sensitivity lets you tune what the report counts as a match. Both filters live under Filters in the report header, and everything — score, source list, highlights — recomputes live as you change them. Filters never delete anything: switch back to Off and every match returns.

The report Filters popover: "Ignore matches shorter than" with Off/5/8/10/15, and the "Exclude quoted text" toggle

Ignore matches shorter than…

Ignores matched passages shorter than a word threshold: 5, 8, 10, or 15 words (or Off, the default — everything shown). As the filter itself puts it: short shared phrases stop counting as matches.

What it's for: short incidental overlaps — names, titles, set phrases, common constructions — that inflate the score without indicating copying.

How to choose:

SettingUse whenTrade-off
OffReviewing someone else's work; investigating a concernComplete picture, including noise
5–8 wordsEveryday checkingDrops fragment noise, keeps sentence-length matches
10–15 wordsLegal writing, methods sections, technical boilerplateOnly long verbatim runs count — recall traded for precision

Exclude quoted text

Ignores matched passages that sit inside quotation marks in your text. The rule is deliberately literal: only actual quotation marks count. Block quotes without quote characters, indented quotes, and paraphrased citations are not detected as quotes — a passage either is inside quotation marks or it isn't. Off by default.

What it's for: properly quoted material matches its source by design. Turning this on shows you what matches outside the quoted material — usually the question you actually care about.

What it deliberately doesn't do: it never judges whether a quote is attributed correctly. A quotation mark exempts the passage even with no citation nearby. Checking citation correctness is your call, not the filter's.

How filtering changes the report

  • The similarity score recomputes over the remaining matches.
  • Sources whose every passage is filtered out drop from the source list.
  • Highlights for excluded passages disappear from the document view.
  • The report states when filters are active, and a shared report shows the same filtered view, labeled — recipients never see a silently reduced score.

A note on honesty

Filters are a reading aid, not a verdict changer

If you're submitting a report as evidence of originality, disclose the filter settings it was read with — or share it with filters off.

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Match sensitivity — Noplag Docs