Duplicate detection identifies exact copies through hashing and near-duplicates through content similarity. Medical records collections routinely contain the same document produced by multiple providers with different headers, stamps, or annotations.
Deduplication reduces review volume without discarding unique content.
Alternative Names:
Duplicate Detection, Near-Dupe Identification
Why it Matters?
Medical productions in injury cases are often substantially duplicative, since each provider produces records received from others, and a claimant's file may contain the same emergency department report six times. Deduplication cuts review volume materially. The caution is that near-duplicates sometimes differ in ways that matter, including handwritten annotations added by a later provider, so suppression should preserve access rather than delete.
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Frequently asked questions
How duplicative are medical productions?
What is the risk in deduplication?





