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A conceptual view on trajectories
TLDR
This paper explores how conceptual modeling could provide applications with direct support of trajectories (i.e. movement data that is structured into countable semantic units) as a first class concept and proposes two modeling approaches based on a design pattern and a dedicated data types. Expand
Semantic trajectories modeling and analysis
TLDR
A survey of the approaches and techniques for constructing trajectories from movement tracks, enriching trajectories with semantic information to enable the desired interpretations of movements, and using data mining to analyze semantic trajectories to extract knowledge about their characteristics. Expand
View Integration: A Step Forward in Solving Structural Conflicts
TLDR
An approach to view integration specifically intended to support the coexistence of different representations of the same real-world objects and use of a formal declarative approach for user definition of inter-view correspondences is presented. Expand
Semantic trajectories: Mobility data computation and annotation
TLDR
A semantic model and a computation and annotation platform for developing a semantic approach that progressively transforms the raw mobility data into semantic trajectories enriched with segmentations and annotations is presented. Expand
Conceptual modeling for traditional and spatio-temporal applications - the MADS approach
Reference LBD-BOOK-2007-001 URL: http://lbd.epfl.ch/e/MADSflyer.pdf Record created on 2007-06-06, modified on 2016-08-08
Issues and approaches of database integration
TLDR
This paper is devoted to database integration, possibly the most critical issue and is to provide a clear picture of what are the approaches and the current solutions and what remains to be achieved. Expand
Evolving objects in temporal information systems
TLDR
The proposed formalization is meant both to clarify the meaning of the various temporal constructors that appeared in the literature and to give a rigorous definition, in the context of temporal information systems, to notions like satisfiability, subsumption and logical implication. Expand
On Spatial Database Integration
TLDR
A general format is proposed for precisely defining correspondences between objects of two databases and a solution is presented for aggregation conflicts which arise when one object of one database corresponds to a set of objects in the other database. Expand
Model independent assertions for integration of heterogeneous schemas
TLDR
This paper investigates theassertion-based approach, in which the DBA's action is limited to pointing out corresponding elements in the schemas and to defining the nature of the correspondence in between, which is capable of ensuring better integration by taking into account additional semantic information. Expand
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