One of these algorithms tackles the ski rental problem, which concerns the choice between paying a small repeating cost or a large one-time cost.
One algorithm of this type partitions a binary search tree into preferred paths and generates a tango tree. Another algorithm of this type, which is random and operates within a factor of twice the kth harmonic number of optimality, is the marking algorithm. That algorithm solves the paging problem, which is a specific case of the more general k-server problem tackled by these algorithms. They may be compared to either adaptive or oblivious adversaries, and their performance across all input cases is compared to an optimal alternative in (*) competitive analysis. One of these algorithms tackles the ski rental problem, which concerns the choice between paying a small repeating cost or a large one-time cost. These algorithms must respond immediately to each request they receive. For 10 points, name this class of algorithms that receive input one piece at a time instead of having it all at the start.
One algorithm of this type partitions a binary search tree into preferred paths and generates a tango tree.
online algorithms