Mapping feature and feature vector fields

It's common to have the requirement to score a document dynamically, depending on the context. For example, scoring more particular documents that are inside a category—the classic scenario is to boost (increase low scored) documents that are based on value such as page rank, hits, or categories.

Elasticsearch 7.x provides two new ways to boost your scores based on values: one is the feature fields and the other is its extension to a vector of values.

Getting ready

You need an up-and-running Elasticsearch installation, as we described in the Downloading and installing Elasticsearch recipe in Chapter 1, Getting Started.

To execute these commands, any HTTP client...