Bayesian Penalty/Boost Function

Scoring functions are widely used in our system, e.g. in search engine and recommendation service. In practice, a scoring function may be paired with a penalty/boost function for additional tweaks. Given an entity $E$ to be scored, the final score is of form $f(E)w(E)$, where $f(E)$ is the original scoring function, and $w(E)$ serves as the penalty/boost function. Usually, it is…
Original post: Bayesian Penalty/Boost Function
Source: Kifi

Getting things done with Grand Central Dispatch (GCD)

Getting things done with Grand Central Dispatch (GCD) If you have ever written some Objective-C you have probably came across some code using GCD.GCD, or libdispatch, is a library from Apple that makes it easy to write performant multithreading code, without having to worry about how threads are being used between CPU cores. Combined with the block syntax, GCD offers…
Original post: Getting things done with Grand Central Dispatch (GCD)
Source: Kifi