Category Archives: open source

iOS Quick Questions

This post introduces a publicly editable table of quick iOS questions and their answers.  Think of it as a very lite version of focused on iOS.  For example, you might ask the question, “How do I cancel a UIView animation?” and the answer is to use the [CALayer removeAllAnimations] method.  This question/answer pair is […]

Fast numeric queries

This post introduces a relatively new algorithm, along with an open-source demo iPad app, that can pre-process a large set of numeric data to help perform extremely fast error-tolerant lookups at query time. Problems you can solve There is a class of algorithms known as locality-sensitive hashing (LSH) algorithms; this is a new one of […]