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- fasel, daniel (author)
A Data Warehouse Model for Integrating Fuzzy Concepts in Meta Table Structures
- Article/chapterEnglish2010
Publisher, publication year, extent ...
- IEEE,2010
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:su-51831
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-51831URI
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- Language:English
- Summary in:English
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- In classical data warehouses (DWH), classification of values takes place in a sharp manner, because of this true values cannot be measured and smooth transition between classes does not occur. In this paper, a fuzzy data ware- house (FDWH) modeling approach, which allows integration of fuzzy concepts without affecting the core of a DWH is presented. This is accomplished through the addition of a meta-table structure, which enables integration of fuzzy concepts on dimensions and facts, while preserving the time-invariability of the DWH and allowing analysis of data both sharp and fuzzy. A comparison to existing approaches for integrating fuzzy concepts in DWH is presented. Guide- lines for modeling the fuzzy meta-tables and a meta-model for the FDWH are also outlined in this paper. The use of the proposed approach is demonstrated by a retail company example. Finally, a comparison of fuzzy and classical data warehousing approaches is presented.
Subject headings and genre
- NATURVETENSKAP Data- och informationsvetenskap Systemvetenskap, informationssystem och informatik hsv//swe
- NATURAL SCIENCES Computer and Information Sciences Information Systems hsv//eng
- Computer and systems science
- Data- och systemvetenskap
- Computer and Systems Sciences
- data- och systemvetenskap
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- Shahzad, Muhammad KhurramStockholms universitet,Institutionen för data- och systemvetenskap (author)
- Stockholms universitetInstitutionen för data- och systemvetenskap (creator_code:org_t)
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- In:17th- International Conference on Engineering of Computer-Based Systems: IEEE9780769540054
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