The tweaking of search is a constant process at Google and they created the Knowledge Base as a way to help refine your search about things by understanding the variability in the meanings of words.
It’s made up of a few parts found below:
The first makes it easier to find the right thing by understanding that words can have more than one meaning and having the Knowledge Base understand the difference to focus your search and slim the field of results.
The next thing it will do is give a summary about what their system believes is the most useful or interesting information for that topic based on what the system has learned from the other questions people have asked.
This element in my view takes the I’m Feeling Lucky button and deepens it by going deep and broad to unearth discoveries that will intrigue and surprise you.
The Knowledge Graph is a massive collection of information that has been gathered to refine your search experience and get to what you’re looking for faster.
Here is the video on it:
I like that this will help make it easier to find what you are looking for. The Knowledge Base feels like it takes potential contexts into account when you search which is an important thing to cull the massive volume of data that exists about a term or a subject which can have many meanings.