David Schneider checks in on Google's latest efforts to make the web smarter:
The Knowledge Graph is very different from the basic search strategy Google was founded on, which was to crawl the Web and build up a giant index of the words contained on each of the documents found. With such an index, Google could easily return links to pages that included your search terms. The company’s secret sauce was the algorithm it used to rank results. This approach, while somewhat daunting to carry out at the scale required, is fundamentally straightforward. The computers doing the crawling, indexing, and ranking don’t need to have any sort of understanding of what the strings of letters you are searching on signify.
Google’s Knowledge Graph adds a new dimension to searches, because the company now keeps track of what many search terms mean. That’s what allows the system to recognize the connection between Margaret Thatcher (the person) and Grantham (her place of birth)—not because the two strings show up together on a lot of Web pages.
(Image: Googling The Daily Dish)