# Natural Language Understanding in Facade: Surface-text Processing

*Source* · `src-mateas-2004-facade-nlu` · status: **n/a**

| field | value |
|---|---|
| kind | Peer-reviewed paper |
| authors | Michael Mateas, Andrew Stern |
| venue | TIDSE 2004 (Technologies for Interactive Digital Storytelling and Entertainment) |
| date | 2004 |
| url | https://www.cp.eng.chula.ac.th/~vishnu/gameResearch/story_november_2005/MateasSternTIDSE04.pdf |
| accessed | 2026-10-24 |

## Notes

Venue and year from the hosted file name and contributor knowledge. Forward-chaining template rules map surface text to 24 discourse act types including a catch-all for non-understanding; about 800 template rules compile to about 6,800 Jess rules; permissive rules accept false positives to reduce non-understanding; under 300 ms on a 2 GHz machine.

## Backlinks (computed)

**cited by:** [Natural-language interaction](../mechanic/natural-language-interaction.md)

## Citation

Michael Mateas, Andrew Stern (2004). *Natural Language Understanding in Facade: Surface-text Processing*. TIDSE 2004 (Technologies for Interactive Digital Storytelling and Entertainment) https://www.cp.eng.chula.ac.th/~vishnu/gameResearch/story_november_2005/MateasSternTIDSE04.pdf

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Provenance: created in run `2026-10-24-taxonomy-m3`.
