How to implement autocomplete on a massive dataset

Question

I\'m trying to implement something like Google suggest on a website I am building and am curious how to go about doing in on a very large dataset. Sure if you\'ve got 1000 items

Answer 1

I would use something along the lines of a trie, and have the value of each leaf node be a list of the possibilities that contain the word represented by the leaf node. You could sort them in order of likelihood, or dynamically sort/filter them based on other words the user has entered into the search box, etc. It will execute very quickly and in a reasonable amount of RAM.