Answering Queries from Statistics and Probabilistic Views

@inproceedings{Dalvi2005AnsweringQF,
  title={Answering Queries from Statistics and Probabilistic Views},
  author={Nilesh N. Dalvi and Dan Suciu},
  booktitle={VLDB},
  year={2005}
}
Systems integrating dozens of databases, in the scientific domain or in a large corporation, need to cope with a wide variety of imprecisions, such as: different representations of the same object in different sources; imperfect and noisy schema alignments; contradictory information across sources; constraint violations; or insufficient evidence to answer a given query. If standard query semantics were applied to such data, all but the most trivial queries will return an empty answer. We… CONTINUE READING
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