Plagiarism Self Plagiarism Overlap Threshold Checker
Audit ordered word-ngram containment in actual copy with case-folded Unicode word tokens and caller review threshold; unlike unordered back-translation Jaccard this preserves adjacency. Overlap does not establish plagiarism, licensing or self-plagiarism.
Description
Ordered word n-grams capture adjacent lexical overlap.
Ordered word n-grams capture adjacent lexical overlap. Candidate containment uses a different denominator from symmetric similarity.1
Enter candidate/reference copy, integer n-gram size 1–10 and review fraction 0–1. Lowercase en-US and tokenize Unicode letters/numbers with internal apostrophes; require sufficient words in both. Return counts, fraction and inclusive review flag.
When to use Plagiarism Self Plagiarism Overlap Threshold Checker
Use Plagiarism Self Plagiarism Overlap Threshold Checker when you need to evaluate the supplied records under the calculation and evidence rules below. Text≤65536 UTF-16 units. Overlap does not establish plagiarism, self-plagiarism, ownership or licensing.
Prepare the actual editorial, source, layout, timing or audience records requested. Supply explicit house-policy limits and preserve missing evidence.
How to use Plagiarism Self Plagiarism Overlap Threshold Checker and understand its results
- Prepare the actual editorial, source, layout, timing or audience records requested. Supply explicit house-policy limits and preserve missing evidence.
- Enter candidateCopy, referenceCopy, ngramWordCount, callerOverlapReviewThresholdFraction using the field table and calculation rules, then run the tool.
- Read uniqueCandidateNgramCount, sharedNgramCount, candidateNgramContainmentFraction, callerOverlapReviewFlag. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| candidateCopy | Candidate copy | string | Required |
| referenceCopy | Reference copy | string | Required |
| ngramWordCount | Ngram word count | number | Required |
| callerOverlapReviewThresholdFraction | Caller overlap review threshold fraction | number | Required |
Enter candidate/reference copy, integer n-gram size 1–10 and review fraction 0–1. Lowercase en-US and tokenize Unicode letters/numbers with internal apostrophes; require sufficient words in both. Return counts, fraction and inclusive review flag.
containment=shared unique candidate ngrams/unique candidate ngrams Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| uniqueCandidateNgramCount | Unique candidate ngram count | number |
| sharedNgramCount | Shared ngram count | number |
| candidateNgramContainmentFraction | Candidate ngram containment fraction | number |
| callerOverlapReviewFlag | Caller overlap review flag | boolean |
{
"input": {
"candidateCopy": "alpha beta gamma delta",
"referenceCopy": "alpha beta gamma omega",
"ngramWordCount": 2,
"callerOverlapReviewThresholdFraction": 0.5
},
"output": {
"uniqueCandidateNgramCount": 3,
"sharedNgramCount": 2,
"candidateNgramContainmentFraction": 0.6666666666666666,
"callerOverlapReviewFlag": true
}
}Limitations and assumptions
Text≤65536 UTF-16 units. Overlap does not establish plagiarism, self-plagiarism, ownership or licensing.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Extremely large text inputs are rejected. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.
Alternative or Complementary methods
Use Quote Context Truncation Full Clip Checker: A quote can be compared with an exact source slice. Available surrounding text differs from semantic fidelity. For a complementary task, use SEO Headline Front Load Keyword Position Checker: Front-loading checks the first complete keyword phrase in tokenized headline copy. Token matching avoids embedded substring matches.
References
Similar or alternative tools
- Quote Context Truncation Full Clip Checker
A quote can be compared with an exact source slice. Available surrounding text differs from semantic fidelity.
- SEO Headline Front Load Keyword Position Checker
Front-loading checks the first complete keyword phrase in tokenized headline copy. Token matching avoids embedded substring matches.