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Field Note Turn Overlap Classifier Tool

Classify supplied half-open speech-turn intervals, with no inference about interruption or intent.

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Description

Classify overlap of two supplied turn intervals.

Anthropological records depend on source-specific labels, observation periods, coding choices and participant context. A ratio, cyclic index or kinship-code offset describes supplied data rather than identifying a social relationship or cultural meaning. Replacing names with aliases does not establish anonymity.

Classify overlap of two supplied turn intervals.

When to use this tool

Use Field Note Turn Overlap Classifier when checking the stated observation, coding, chronology or record convention.

How to use the tool and how it works

  1. Enter firstStart, firstEnd, secondStart, secondEnd. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read overlap, role. Use the output convention below.

Classify overlap of two supplied turn intervals. Require ordered intervals; overlap is intersection width, role is overlap when positive, otherwise touching on shared endpoints or separate.1

Input fieldMeaning and unitsAccepted input
firstStartFirst StartRequired. Finite number.
firstEndFirst EndRequired. Finite number.
secondStartSecond StartRequired. Finite number.
secondEndSecond EndRequired. Finite number.
Output fieldInterpretationReturned shape
overlapOverlapRequired. Finite number.
roleRoleRequired. Text; maximum UTF-16 length 8192.
json
{
  "input": {
    "firstStart": 0,
    "firstEnd": 5,
    "secondStart": 3,
    "secondEnd": 8
  },
  "output": {
    "overlap": 2,
    "role": "overlap"
  }
}

Limitations and assumptions

  • Zero-duration point intervals can receive touching/separate under these exact comparisons; no conversational meaning or actual speaker activity is inferred.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Consult the original field records, community context and appropriate ethical/privacy practices for cultural interpretation or disclosure decisions.

References

  1. Calculation and input contract: anthropology/field-note-turn-overlap-classifier — tool.io

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