Natural Language Processing with Python and spaCy by Yuli Vasiliev

Author:Yuli Vasiliev
Language: eng
Format: epub
Publisher: No Starch Press
Published: 2020-07-15T00:00:00+00:00

Walking a Dependency Tree for Information Extraction

Let’s return to the ticket-booking application example. To find a user’s intended destination, you might need to iterate over the dependency tree of a sentence to determine whether “to” is semantically related to “Berlin.” This is easy to accomplish if you remember the head/child syntactic relations that compose a dependency tree, which was introduced in the “Head and Child” box on page 25.

Figure 6-3 shows the dependency tree for the sentence, “I am going to the conference in Berlin”:

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