What search algorithm do search engines use?

Question

Google

I studied linear, binary, interpolation search algorithms, but this is not how I understand it. Please tell me what material to study, roughly speaking, what should I google? Again, I'm interested in the search algorithm, not the ranking algorithm. Thank you.

Answer 1

Indexing and subsequent search by index.
Roughly speaking, the text is divided into separate words, the words are brought into normal form, entered into the dictionary, then a table of links between individual words and documents is built (in which document which word occurs how often and in what form).
When the client enters a search query, it is also split into words, the words are normalized, and the index contains documents that contain the search words.
Next comes the definition of relevance, and this is the most complex and science-intensive stage, I don’t know the details, but perhaps you can find something by the keywords “relevance”, “full-text search”, “indexing”.

Answer 2

Somehow I sat down to formalize my knowledge and scored halfway through, a wildly uninteresting and dreary task. For those who are at the beginning of the journey, useful for systematizing knowledge about information retrieval, you can continue the work you have begun.
https://yadi.sk/i/OqHvc21HngMRb
It's better to start with detailing the indices, there are 9 of them with a detailed description. Well, if you go cyclically every 6-7 times, the scheme will grow.

Answer 3

Briefly: a connected structure of unique data chains (nodes) located in the general volume of information.

Answer 4

The algorithms of search engines and search robots are a kind of trade secret, it's impossible to know, it's magic)))) unless you work as a developer of these systems in Yandex or Google. In general, in order to understand the principle of search, many books on the basics of promotion provide sufficient information, where there is basic information on search robots and principles ...

Answer 5

What search algorithm do search engines use?

Different search engines (Google, Yandex, ...) use different search algorithms.
And this is their competitive advantage and intellectual property, know how. And no one will ever reveal to you the algorithms used by search engines.

Answer 6

Read "Introduction to Information Retrieval" - Manning K., Raghavan P., Schütze H.