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Translation Error Rate Metric

Translation Error Rate Metric. Reference: “the Iraqi weapons are to be handed over to the army within two weeks ” MT output: “in two weeks Iraq’s weapons will give army ”. Step-1: Remove Stop Words. the Iraqi weapons are to be handed over to the army within two weeks

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Translation Error Rate Metric

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  1. Translation Error Rate Metric • Reference: “the Iraqiweapons are to be handed over to the army within two weeks” • MT output: “in two weeksIraq’sweapons will give army” METEOR

  2. Step-1: Remove Stop Words • theIraqiweapons are to be handed over to thearmy within two weeks • in two weeksIraq’sweapons will give army METEOR

  3. Step-2: Word Align with Matcher • theIraqiweapons are to be handed over to thearmy within two weeks • in two weeksIraq’sweapons will give army METEOR

  4. Step-3: Count Flips (Reorder) • theIraqiweapons are to be handed over to thearmy within two weeks • in two weeksIraq’sweapons will give army • Reordered: • in Iraq’sweapons will give army two weeks • Flip count = 4 METEOR

  5. Step-4: Count Insertions/Deletions/Substitutions • theIraqiweapons are to be handed over to thearmy within two weeks • in two weeksIraq’sweapons will give army • Reordered: • in Iraq’sweapons will give army two weeks • Flip count = 4 • Substitutions: 2 • Insertions (from Ref): 5 • Deletions (from MT): 1 METEOR

  6. Step-5: Score • theIraqiweapons are to be handed over to thearmy within two weeks • in two weeksIraq’sweapons will give army • Reordered: • in Iraq’sweapons will give army two weeks • Flip count = 4 • Substitutions: 2 • Insertions (from Ref): 5 • Deletions (from MT): 1 • TER = flips + subst + ins + del / ref length = 4+2+5+1/12 = 12/12 = 1.0 METEOR

  7. Another Example • Ref:north korea is prepared to allow washington to verify that it does not manufacture nuclear weapons • MT:North Korea prepared to allow Washingtontothe verification ofthat is to manufacture nuclear weapons • Flips: 0 • Substitutions: 3 • Insertions: 1 • Deletions: 0 • TER Score = 0+3+1+0/16 = 4/16 = 0.25 METEOR

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