algorithms Undergraduate Upends a 40-Year-Old Data Science Conjecture A young computer scientist and two colleagues show that searches within data structures called hash tables can be much faster than ...

Facebook open sources C++ F14 hash table Making fast hash tables in programming, which don't cause collision trouble, is one of computing's holy grails. Facebook thinks it's created a good one.

But in a 1953 internal IBM paper, he proposed a new technique for storing and retrieving information that is now built into just about all computational systems: the hash table. Hash tables are a ...