Λεπτομέρειες

ΕίδοςΔημοσίευση
ΚωδικόςTR-2005-17
ΤίτλοςLogical Optimization of ETL Workflows
ΣυγγραφέαςΆλκης Σιμιτσής, Πάνος Βασιλειάδης, Τίμος Σελλής
Έτος2005
Λέξεις κλειδιάETL, Data Warehousing, Optimization, Workflows
ΠερίληψηExtraction-Transformation-Loading (ETL) tools are pieces of software responsible for the extraction of data from several sources, their cleansing, customization and insertion into a data warehouse. Usually, these processes must be completed in a certain time window; thus, it is necessary to optimize their execution time. In this paper, we delve into the logical optimization of ETL processes, modeling it as a state-space search problem. We consider each ETL workflow as a state and fabricate the state space through a set of correct state transitions. Moreover, we provide algorithms towards the minimization of the execution cost of an ETL workflow.
ΚατηγορίαETL
ΔημοσίευσηProceedings of the 4th Hellenic Data Management Symposium (HDMS '05)
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