Corpus ID: 12425876

Efficient Snapshot Differential Algorithms for Data Warehousing

@inproceedings{Labio1996EfficientSD,
  title={Efficient Snapshot Differential Algorithms for Data Warehousing},
  author={Wilburt Labio and Hector Garcia-Molina},
  booktitle={VLDB},
  year={1996}
}
Detecting and extracting modifications from information sources is an integral part of data warehousing. [...] Key Method In particular, we present algorithms that perform (possibly lossy) compression of records. We also present a {\em window} algorithm that works very well if the snapshots are not ``very different.'''' The algorithms are studied via analysis and an implementation of two of them; the results illustrate the potential gains achievable with the new algorithms.Expand
Eecient Snapshot Diierential Algorithms for Data Warehousing
Detecting and extracting modi cations from information sources is an integral part of data warehousing. For unsophisticated sources, it is often necessary to infer modi cations by periodicallyExpand
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