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SEBD
2003
159views Database» more  SEBD 2003»
14 years 24 days ago
Spatial Tree Logics to reason about Semistructured Data
The Ambient Logic is a modal logic proposed to describe the structural and computational properties of distributed and mobile computations. The static part of the Ambient Logic is,...
Giovanni Conforti, Giorgio Ghelli
CLEANDB
2006
ACM
142views Database» more  CLEANDB 2006»
14 years 1 months ago
QUEST: QUery-driven Exploration of Semistructured Data with ConflicTs and Partial Knowledge
An important reality when integrating scientific data is the fact that data may often be "missing", partially specified, or conflicting. Therefore, in this paper, we pre...
Yan Qi 0002, K. Selçuk Candan, Maria Luisa ...
WEBDB
2000
Springer
136views Database» more  WEBDB 2000»
14 years 3 months ago
An Optimization Technique for Answering Regular Path Queries
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
Gösta Grahne, Alex Thomo
FODO
1998
Springer
214views Algorithms» more  FODO 1998»
14 years 3 months ago
Querying Composite Objects in Semistructured Data
In this paper, we propose an entity-based style of queries for semistructured data. First, we partition a semistructured data into subgraphs corresponding to real-world entities, ...
Keishi Tajima
EDBTW
2006
Springer
14 years 3 months ago
Enhanced Regular Path Queries on Semistructured Databases
Regular path queries are the basic navigational component of virtually all the mechanisms for querying semistructured data commonly found in information integration applications, W...
Dan C. Stefanescu, Alex Thomo
VLDB
1998
ACM
149views Database» more  VLDB 1998»
14 years 3 months ago
Incremental Maintenance for Materialized Views over Semistructured Data
Semistructured data is not strictly typed like relational or object-oriented data and may be irregular or incomplete. It often arises in practice, e.g., when heterogeneous data so...
Serge Abiteboul, Jason McHugh, Michael Rys, Vasili...
SIGMOD
1998
ACM
150views Database» more  SIGMOD 1998»
14 years 3 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...
DBPL
1999
Springer
98views Database» more  DBPL 1999»
14 years 3 months ago
Ozone: Integrating Structured and Semistructured Data
Applications have an increasing need to manage semistructured data such as data encoded in XML along with conventional structured data. We extend the structured object database ...
Tirthankar Lahiri, Serge Abiteboul, Jennifer Widom
DBPL
1999
Springer
102views Database» more  DBPL 1999»
14 years 3 months ago
Union Types for Semistructured Data
Semistructured databases are treated as dynamically typed: they come equipped with no independent schema or type system to constrain the data. Query languages that are designed fo...
Peter Buneman, Benjamin C. Pierce
VLDB
2001
ACM
153views Database» more  VLDB 2001»
14 years 3 months ago
A Fast Index for Semistructured Data
Queries navigate semistructured data via path expressions, and can be accelerated using an index. Our solution encodes paths as strings, and inserts those strings into a special i...
Brian F. Cooper, Neal Sample, Michael J. Franklin,...