Extracting key phrases with Azure Text Analytics

Azure is Microsoft's general platform within which they provide an extensive array of AI services via APIs. In this example, we will be making use of the Text Analytics component, a subcomponent of the wider Cognitive Services offering that contains most of the AI services on offer. This subcomponent contains a range of APIs related to Natural Language Processing (NLP), which can be used for a variety of purposes, some of which overlaps with the offerings from Einstein Platform Services that we examined in Chapter 7, Building AI Features with Einstein Platform Services.

However, for the purpose of this example, we will be using a service that has no such equivalence on the Salesforce platform. This is the Key Phrases API, which extracts key phrases from unstructured text documents. It works by you posting a set of JSON formatted text documents to the API endpoint identified by an index and getting in return a set of key phrases...