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Consider the following randomized algorithm ALG for the Time Series Search problem: Pick j in { 0 , . . . , log phi
Consider the following randomized algorithm ALG for the Time Series
Search problem: Pick j in log phi uniformly at random. Trade all savings on the first day i such that the exchange rate pi satisfies pi jL If no such exchange rate is encountered, trade all savings on the last day.
Prove that oblivious competitive ratio rho OBLALGlog phi
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