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Incomplete Path Expressions and their Disambiguation.

Yannis E. Ioannidis, Yezdi Lashkari: Incomplete Path Expressions and their Disambiguation. SIGMOD Conference 1994: 138-149
@inproceedings{DBLP:conf/sigmod/IoannidisL94,
  author    = {Yannis E. Ioannidis and
               Yezdi Lashkari},
  editor    = {Richard T. Snodgrass and
               Marianne Winslett},
  title     = {Incomplete Path Expressions and their Disambiguation},
  booktitle = {Proceedings of the 1994 ACM SIGMOD International Conference on
               Management of Data, Minneapolis, Minnesota, May 24-27, 1994},
  publisher = {ACM Press},
  year      = {1994},
  pages     = {138-149},
  ee        = {http://doi.acm.org/10.1145/191839.191870, db/conf/sigmod/IoannidisL94.html},
  crossref  = {DBLP:conf/sigmod/94},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}
BibTeX

Abstract

When we, humans, talk to each other we have no trouble disambiguating what another person means, although our statements are almost never meticulously specified down to the very last detail. We `fill in the gaps' using our common-sense knowledge about the world. We present a powerful mechanism that allows users of object-oriented database systems to specify certain types of ad-hoc queries in a manner closer to the way we pose questions to each other. Specifically, the system accepts as input queries with incomplete, and therefore ambiguous, path expressions. From them, it generates queries with fully-specified path expressions that are consistent with those given as input and capture what the user most likely meant by them. This is achieved by mapping the problem of path expression disambiguation to an optimal path computation (in the transitive closure sense) over a directed graph that represents the schema. Our method works by exploiting the semantics of the kinds of relationships in the schema and requires no special knowledge about the contents of the underlying database, i.e., it is domain independent. In a limited set of experiments with human subjects, the proposed mechanism was very successful in disambiguating incomplete path expressions.

Copyright © 1994 by the ACM, Inc., used by permission. Permission to make digital or hard copies is granted provided that copies are not made or distributed for profit or direct commercial advantage, and that copies show this notice on the first page or initial screen of a display along with the full citation.

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Richard T. Snodgrass, Marianne Winslett (Eds.): Proceedings of the 1994 ACM SIGMOD International Conference on Management of Data, Minneapolis, Minnesota, May 24-27, 1994. ACM Press 1994 BibTeX , SIGMOD Record 23(2), June 1994
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