Concept

Database schema

Publications associées (55)

A Conceptual View on Trajectories

Stefano Spaccapietra, Christine Parent, Christelle Vangenot, Maria Luisa Damiani, José Antonio Fernandes de Macedo

Analysis of trajectory data is the key to a growing number of applications aiming at global understanding and management of complex phenomena that involve moving objects (e.g. worldwide courier distribution, city traffic management, bird migration monitori ...

2007

GridVine: an Infrastructure for Peer Information Management

Karl Aberer, Philippe Cudré-Mauroux

GridVine is a semantic overlay infrastructure based on a peer-to-peer (P2P) access structure. Built following the principle of data independence, it separates a logical layer — in which data, schemas, and schema mappings are managed — from a physical layer ...

2007

Predictive Approach for Database Schema Evolution

Hassina Bounif

Information systems, including their core databases need to meet changing user requirements and adhere to evolving business strategies. Traditional database evolution techniques focus on reacting to change to smoothly perform schema evolution operations an ...

Idea Group2006

Probabilistic Message Passing in Peer Data Management Systems

Karl Aberer, Philippe Cudré-Mauroux

Until recently, most data integration techniques involved central components, e.g., global schemas, to enable transparent access to heterogeneous databases. Today, however, with the democratization of tools facilitating knowledge elicitation in machine-pro ...

IEEE2006

Belief Propagation on Uncertain Schema Mappings in Peer Data Management Systems

Karl Aberer, Philippe Cudré-Mauroux

IOSPress2006

Semantic validation in spatio-temporal schema integration

Anastasiya Sotnykova

This thesis proposes to address the well-know database integration problem with a new method that combines functionality from database conceptual modeling techniques with functionality from logic-based reasoners. We elaborate on a hybrid - modeling+validat ...

EPFL2006

Analyzing Semantic Interoperability in Bioinformatic Database Networks

Karl Aberer, Philippe Cudré-Mauroux, Adriana Budura, Julien Gaugaz

We consider the problem of analytically evaluating semantic interoperability in large-scale networks of schemas interconnected through pairwise schema mappings. Our heuristics are based on a graph-theoretic framework capturing important statistical propert ...

2005

GridVine: Building Internet-Scale Semantic Overlay Networks

Karl Aberer, Manfred Hauswirth, Philippe Cudré-Mauroux, Tim van Pelt

This paper addresses the problem of building scalable semantic overlay networks. Our approach follows the principle of data independence by separating a logical layer, the semantic overlay for managing and mapping data and metadata schemas, from a physical ...

2004

Using Code Transformation for Consistent and Transparent Caching of Dynamic Web Content

Willy Zwaenepoel, Sumit Mittal

We present a consistent and transparent caching system for dynamic web pages produced by a server-side application using a back-end database. Cached pages always reflect current database values. No intervention from the programmer is necessary to implement ...

2003

High Efficiency Road Status Monitoring System

Phillip Tomé, Telmo Cunha

This paper presents an application where an integrated GPS/IMU system is used for land survey (mounted on a van), providing a significant improvement on the efficiency of the road status monitoring process. Being initially developed for aircraft navigation ...

2002

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