Method and Computerized Device for Performing a Range Search in Numeric Time-Series Data

A method for performing a range search in numeric time-series data, the method comprising:

• 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 derived 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.

A non-transitory computer-readable medium encoded with program code which, when executed by at least one computer, causes a range search in numeric time-series data, the program code comprising:

• a) program code for acquiring (S10), at least temporarily, a numeric time-series including a plurality of readings associated with time;
• b) program code for processing (S20), by a first processing unit, the acquired numeric time-series to derive an index from the acquired numeric time-series;
• c) program code for storing (S30) the index in a storage unit;
• d) program code for receiving (S40) a search request including an amplitude range criterion;
• e) program code for processing (S50), by a second processing unit, the derived index to determine a time range for which the numeric time-series is known to match the amplitude range criterion;
• and
• f) program code for outputting (S60) the determined time range in response to the search request.

A computerized device for performing a range search in numeric time-series data, the computerized device comprising:

• at least one processing unit;
• a storage unit;
• a) a first entity configured to acquire, at least temporarily, a numeric time-series including a plurality of readings associated with time;
• b) a second entity configured to process the acquired numeric time-series to derive an index from the acquired numeric time-series;
• c) a third entity configured to store the index;
• d) a fourth entity configured to receive a search request including an amplitude range criterion;
• e) a fifth entity configured to process the derived index to determine a time range for which the numeric time-series is known to match the amplitude range criterion;
• and
• f) a sixth entity configured to output the determined time range.