DHDSearch: A Framework for Batch Time Series Searching on MapReduce.

We present DHDSearch, a framework for distributed batch time series searching on MapReduce. DHDSearch is based on a two-layer DHDTree. The upper DHDTree serves as a route tree to distribute the time series. While the lower DHDTrees serve the batch searching in parallel. Compared with traditional time series searching methods, DHDSearch has better scalability and efficiency.