Translating Japanese Numbers with Functional Programming
summary
Claims a working rewrite systems pipeline implemented in Scala implementation that turns mixed Japanese text (Arabic digits, kanji, English words) into a normalized entity stream so CAT tool checks can compare values. Handles months, imperial eras (example Heisei 3 → 1991), multi-digit composition, and large units like man and oku units (10,000 and 100,000,000) by staging intermediate case classes to ensure confluence and iterating to a fixed point. Demo reduces the flood of false positives and converges on correct numeric outputs.
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chapters (7)
- 0:00Introduction
- 2:33Japanese number translation issues
- 8:09Rewrite systems core concepts
- 13:08Implementing in Scala
- 19:54Kanji number handling
- 24:25Fixing non-confluent rules
- 27:40Results and future work
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