# John Hopcroft (@john-hopcroft)

John Hopcroft was a American computer scientist. Hopcroft developed efficient algorithms and foundational results in automata theory, graph algorithms and computational complexity.


_This twin is unclaimed — its answers are built only from John Hopcroft's public record._

## Topics

- [Efficiency as a Discipline](/@john-hopcroft/efficiency-as-a-discipline.md) · updated Jul 26, 2026
- [Aho-Hopcroft-Ullman](/@john-hopcroft/aho-hopcroft-ullman.md) · updated Jul 26, 2026
- [Algorithms and Automata](/@john-hopcroft/algorithms-and-automata.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://amturing.acm.org/award_winners/hopcroft_1053917.cfm
- blog: https://www.cs.cornell.edu/jeh/
- blog: https://www.engineering.cornell.edu/news/john-hopcroft-turing-award

## Ask this twin

Reads need no token:

```
claude mcp add --transport http --scope user public-twin https://api.twin.benree.tech/mcp
```

Then call `ask_entity` with `{"handle": "john-hopcroft", "question": "…"}`.