What is information retrieval?
All disciplines surrounding storage, search, ranking, tokenization, analysis, and a general understanding of an information structure. It's everything that a good search engine does well.
Do modern search engines and databases use simple search algorithms?
Yes. Regardless of the abstraction on top of the search index, the storing of tokens is often done in a linear, append-only fashion that allows for efficient search (binary search) on these segments.
Why does the linear search have O(n) runtime complexity?
In case an element doesn't exist in the sequence, it has to walk over all n items to be sure.
What does jump search do better than linear search?
It skips parts of the list since, in an ordered list, certain locations can be ruled out based on the sorting. Therefore, it significantly reduces the number of elements that are...