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 Theo Vassilakis

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Average citations per article57.00
Citation Count171
Publication count3
Publication years2005-2011
Available for download3
Average downloads per article1,858.67
Downloads (cumulative)5,576
Downloads (12 Months)264
Downloads (6 Weeks)32
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1 published by ACM
June 2011 Communications of the ACM: Volume 54 Issue 6, June 2011
Publisher: ACM
Bibliometrics:
Citation Count: 14
Downloads (6 Weeks): 13,   Downloads (12 Months): 132,   Downloads (Overall): 2,421

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Dremel is a scalable, interactive ad hoc query system for analysis of read-only nested data. By combining multilevel execution trees and columnar data layout, it is capable of running aggregation queries over trillion-row tables in seconds. The system scales to thousands of CPUs and petabytes of data, and has thousands ...

2
September 2010 Proceedings of the VLDB Endowment: Volume 3 Issue 1-2, September 2010
Publisher: VLDB Endowment
Bibliometrics:
Citation Count: 148
Downloads (6 Weeks): 19,   Downloads (12 Months): 111,   Downloads (Overall): 1,709

Full text available: PDFPDF
Dremel is a scalable, interactive ad-hoc query system for analysis of read-only nested data. By combining multi-level execution trees and columnar data layout, it is capable of running aggregation queries over trillion-row tables in seconds. The system scales to thousands of CPUs and petabytes of data, and has thousands of ...

3 published by ACM
June 2005 SIGMOD '05: Proceedings of the 2005 ACM SIGMOD international conference on Management of data
Publisher: ACM
Bibliometrics:
Citation Count: 9
Downloads (6 Weeks): 0,   Downloads (12 Months): 21,   Downloads (Overall): 1,446

Full text available: PDFPDF
When collecting and combining data from various sources into a data warehouse, ensuring high data quality and consistency becomes a significant, often expensive, challenge. Common data quality problems include inconsistent data conventions amongst sources such as different abbreviations or synonyms; data entry errors such as spelling mistakes; missing, incomplete, outdated ...



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