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https://olympias.lib.uoi.gr/jspui/handle/123456789/10877Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Simitsis, A. | en |
| dc.contributor.author | Vassiliadis, P. | en |
| dc.contributor.author | Terrovitis, M. | en |
| dc.contributor.author | Skiadopoulos, S. | en |
| dc.date.accessioned | 2015-11-24T17:01:08Z | - |
| dc.date.available | 2015-11-24T17:01:08Z | - |
| dc.identifier.issn | 0302-9743 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/10877 | - |
| dc.rights | Default Licence | - |
| dc.title | Graph-based modeling of ETL activities with multi-level transformations and updates | en |
| heal.type | journalArticle | - |
| heal.type.en | Journal article | en |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.language | en | - |
| heal.access | campus | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Ηλεκτρονικών Υπολογιστών και Πληροφορικής | el |
| heal.publicationDate | 2005 | - |
| heal.abstract | Extract-Transform-Load (ETL) workflows are data centric workflows responsible for transferring, cleaning, and loading data from their respective sources to the warehouse. In this paper, we build upon existing graph-based modeling techniques that treat ETL workflows as graphs by (a) extending the activity semantics to incorporate negation, aggregation and self-joins, (b) complementing querying semantics with insertions, deletions and updates, and (c) transforming the graph to allow zoom-in/out at multiple levels of abstraction (i.e., passing from the detailed description of the graph at the attribute level to more compact variants involving programs, relations and queries and vice-versa). | en |
| heal.journalName | Data Warehousing and Knowledge Discovery, Proceedings | en |
| heal.journalType | peer reviewed | - |
| heal.fullTextAvailability | TRUE | - |
| Appears in Collections: | Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Vassiliadis-2005-Graph-based modeling of ETL activities with multi-level transformations and updates.pdf | 183.78 kB | Adobe PDF | View/Open Request a copy |
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