Abstract: A computerized device, computer program product and method for performing a range search in numeric time-series data that includes a) acquiring, at least temporarily, a numeric time-series including a plurality of readings associated with time; b) processing, by a first processing unit, the acquired numeric time-series to derive an index from the acquired numeric time-series; c) storing the index in a storage unit; d) receiving a search request including an amplitude range criterion; e) processing, by a second processing unit, the index to determine a time range for which the numeric time-series is known to match the amplitude range criterion; and f) outputting the determined time range in response to the search request, whereby the processing time for determining the time range in response to the range search request may be significantly reduced.

Abstract: A data reduction for reducing highly correlated data (e.g., highly correlated data streams) is provided. Correlated data of a plurality of data streams are identified, and a spectral dimensional decomposition is performed. In this way, information from the data of the data streams may be exploited, and this information may be used in order to achieve a highly efficient reduction of the data. In this way, the compression ratio of the data may be enhanced or the data loss of the reduce data compression may be minimized.