245views Database» more  VLDB 2011»
13 years 2 months ago
Normalization and optimization of schema mappings
Schema mappings are high-level specifications that describe the relationship between two database schemas. They are an important tool in several areas of database research, notab...
Georg Gottlob, Reinhard Pichler, Vadim Savenkov
97views more  PVLDB 2010»
13 years 5 months ago
TRAMP: Understanding the Behavior of Schema Mappings through Provenance
Though partially automated, developing schema mappings remains a complex and potentially error-prone task. In this paper, we present TRAMP (TRAnsformation Mapping Provenance), an ...
Boris Glavic, Gustavo Alonso, Renée J. Mill...
125views more  PVLDB 2010»
13 years 5 months ago
MapMerge: Correlating Independent Schema Mappings
One of the main steps towards integration or exchange of data is to design the mappings that describe the (often complex) relationships between the source schemas or formats and t...
Bogdan Alexe, Mauricio A. Hernández, Lucian...
119views more  PVLDB 2008»
13 years 5 months ago
Comparing and evaluating mapping systems with STBenchmark
Schema mappings are fundamental building blocks in many information integration applications. Designing mappings is a timeconsuming process and for that reason many mapping system...
Bogdan Alexe, Wang Chiew Tan, Yannis Velegrakis
131views more  PVLDB 2008»
13 years 6 months ago
Learning to create data-integrating queries
The number of potentially-related data resources available for querying -- databases, data warehouses, virtual integrated schemas -continues to grow rapidly. Perhaps no area has s...
Partha Pratim Talukdar, Marie Jacob, Muhammad Salm...
138views more  JUCS 2008»
13 years 7 months ago
Schema Mappings and Agents' Actions in P2P Data Integration System
: We propose specification of schema mappings and agents' actions in XML data integration task. We discuss the problem in a highly-dynamic environment consisting of a communit...
Grazyna Brzykcy, Jerzy Bartoszek, Tadeusz Pankowsk...
13 years 8 months ago
Checking Containment of Schema Mappings (Preliminary Report)
In data exchange, data are materialised from a source schema to a target schema, according to suitable source-to-target constraints. Constraints are also expressed on the target sc...
Andrea Calì, Riccardo Torlone
143views Business» more  BIS 2006»
13 years 8 months ago
Schema- and Ontology-Based XML Data Exchange in Semantic E-Business Applications
The problem of the semantics-preserving data transformations during their exchange by e-business applications is addressed. A method for automatic generation of schema mappings is...
Jolanta Cybulka, Adam Meissner, Tadeusz Pankowski
13 years 9 months ago
Malan: a mapping language for the data manipulation
Malan is a MApping LANguage that allows the generation of transformation programs by specifying a schema mapping between a source and target data schema. By working at the schema ...
Arnaud Blouin, Olivier Beaudoux, Stéphane L...
223views Database» more  PODS 2010»
13 years 9 months ago
Characterizing schema mappings via data examples
Schema mappings are high-level specifications that describe the relationship between two database schemas; they are considered to be the essential building blocks in data exchange...
Bogdan Alexe, Phokion G. Kolaitis, Wang Chiew Tan