Sciweavers

349 search results - page 14 / 70
» Query Rewriting for Semistructured Data
Sort
View
ICDE
2009
IEEE
160views Database» more  ICDE 2009»
14 years 11 months ago
Perm: Processing Provenance and Data on the Same Data Model through Query Rewriting
Data provenance is information that describes how a given data item was produced. The provenance includes source and intermediate data as well as the transformations involved in pr...
Boris Glavic, Gustavo Alonso
134
Voted
IJCAI
2003
15 years 3 months ago
Query rewriting and answering under constraints in data integration systems
In this paper we address the problem of query answering and rewriting in global-as-view data integration systems, when key and inclusion dependencies are expressed on the global i...
Andrea Calì, Domenico Lembo, Riccardo Rosat...
SIGMOD
1998
ACM
150views Database» more  SIGMOD 1998»
15 years 6 months ago
Extracting Schema from Semistructured Data
Semistructured data is characterized by the lack of any fixed and rigid schema, although typically the data hassomeimplicitstructure. While thelack offixedschemamakesextracting ...
Svetlozar Nestorov, Serge Abiteboul, Rajeev Motwan...
111
Voted
ICEIS
2002
IEEE
15 years 6 months ago
Modeling Relational Data by the Adjacency Model
: The World-Wide-Web contains data that cannot be constrained by a schema. Another source for such data is heterogenous corporate systems which are integrated in order to get bette...
Jari Töyli, Matti Linna, Merja Wanne
SIGMOD
2005
ACM
123views Database» more  SIGMOD 2005»
15 years 7 months ago
Magnet: Supporting Navigation in Semistructured Data Environments
With the growing importance of systems containing arbitrary semistructured relationships, the need for supporting users searching in such repositories has grown. Currently support...
Vineet Sinha, David R. Karger