Evaluating Sinhala grammar correction beyond one score
A sentence benchmark and a real newspaper paragraph test reveal different failure modes—and both matter.
11 Aug 2026 · 5 min
Separate controlled and natural text
Sentence-level examples isolate correction behavior. Real-news paragraphs introduce style, context and error combinations that make the task closer to editorial use.
Explain what accuracy means
A metric needs its unit, dataset and matching rule. Without those, a percentage is impressive-looking but difficult to trust or reproduce.
Read the misses
Error analysis is where the next experiment comes from. Grouping missed cases by grammar pattern, ambiguity and style gives the score an engineering purpose.
See the engineering decisions applied in a real project.
SinAI research case study