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POPL
2005
ACM
16 years 7 months ago
Context logic and tree update
Spatial logics have been used to describe properties of treelike structures (Ambient Logic) and in a Hoare style to reason about dynamic updates of heap-like structures (Separatio...
Cristiano Calcagno, Philippa Gardner, Uri Zarfaty
ICDE
2009
IEEE
165views Database» more  ICDE 2009»
16 years 8 months ago
Expressive Location-Based Continuous Query Evaluation with Binary Decision Diagrams
Many location-based services require rich and expressive query language support for filtering large amounts of information. In prominent location-based services thousands of conti...
Zhengdao Xu, Hans-Arno Jacobsen
ICDE
2008
IEEE
208views Database» more  ICDE 2008»
16 years 8 months ago
Clip: a Visual Language for Explicit Schema Mappings
Many data integration solutions in the market today include tools for schema mapping, to help users visually relate elements of different schemas. Schema elements are connected wit...
Alessandro Raffio, Daniele Braga, Mauricio A. Hern...
TLDI
2010
ACM
218views Formal Methods» more  TLDI 2010»
16 years 3 months ago
Pointwise generalized algebraic data types
In the GADT (Generalized Algebraic Data Types) type system, a pattern-matching branch can draw type information from both the scrutinee type and the data constructor type. Even th...
Chuan-kai Lin, Tim Sheard
ICIW
2008
IEEE
16 years 1 months ago
XML Semantic Filtering via Ontology Reasoning
In this paper, we present an extension of PHIL, a declarative language for filtering information from XML data. The proposed approach allows us to extract relevant data as well a...
Michele Baggi, Moreno Falaschi, Demis Ballis