Detect a pronoun and its noun?

Question

Wondering if there is any tool that can help me to detect a pronoun's name in a text.

Example

Jone is Spanish. He can speak German.

How can I tag He to Jone?

Answer 1

The problem you are trying to solve is known as anaphora resolution. A java tool to perform this task is available here. The source code is made available on that site. For a theoretical look at how it works, check out this paper by Lappin and Leass from 1994.