Astronomical data processing in EXTASCID
Yu Cheng, Florin Rusu · 2013
Scientific data have dual structure. Raw data are preponderantly ordered multi-dimensional arrays or sequences while metadata and derived data are best represented as unordered relations. Scientific data processing requires complex operations over arrays and relations. These operations cannot be expressed using only standard linear and relational algebra operators, respectively. Existing scientific data processing systems are designed for a single data model and handle complex processing at the application level.