Concept

Database design

Publications associées (138)

Self-Organizing Schema Mappings in the GridVine Peer Data Management System

Karl Aberer, Philippe Cudré-Mauroux, Parisa Haghani, Adriana Budura

GridVine is a Peer Data Management System based on a decentralized access structure. Built following the principle of data independence, it separates a logical layer -- where data, schemas and mappings are managed -- from a physical layer consisting of a s ...

2007

Image-guided surgical microscope with mounted minitracker

Gaëtan Marti, Jaime Garcia Giraldez

A new image-guided microscope using augmented reality overlays has been developed. Unlike other systems, the novelty of our design consists in mounting a precise mini and low-cost tracker directly on the microscope to track the motion of the surgical tools ...

2007

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

Method to Filter Electronic Messages in A Message Processing System

Jean-Yves Le Boudec, Slavisa Sarafijanovic

The present invention proposes a method to filter electronic messages in a message processing system, this message processing system comprising a temporary memory for storing the received messages intended to users, a first database dedicated to a specific ...

2006

Design and Implementation of Preference-based Search

Boi Faltings, Paolo Viappiani

Preference-based search is the problem of finding an item that matches best with a user's preferences. User studies show that example-based tools for preference-based search can achieve significantly higher accuracy when they are complemented with suggesti ...

2006

Parameterizing Deformable Surfaces for Monocular 3--D Tracking

Pascal Fua, Mathieu Salzmann, Slobodan Ilic

e propose a deformable surface parameterization that is generic and lets us automatically build registered shape databases. This allows us to directly derive low-dimensional shape models using a simple dimensionality reduction technique. This addresses one ...

2005

Database Replication Using Generalized Snapshot Isolation

Willy Zwaenepoel, Sameh Mohamed Elnikety, Fernando Pedone

Generalized snapshot isolation extends snapshot isolation as used in Oracle and other databases in a manner suitable for replicated databases. While (conventional) snapshot isolation requires that transactions observe the “latest” snapshot of the database, ...

2005

On the Use of Speech and Face Information for Identity Verification

{T}his report first provides a review of important concepts in the field of information fusion, followed by a review of important milestones in audio-visual person identification and verification. {S}everal recent adaptive and non-adaptive techniques for r ...

IDIAP2004

HMM and IOHMM for the Recognition of Mono- and Bi-Manual 3D Hand Gestures

Sébastien Marcel, Agnès Just

In this paper, we address the problem of the recognition of isolated complex mono- and bi-manual hand gestures. In the proposed system, hand gestures are represented by the 3D trajectories of blobs obtained by tracking colored body parts. In this paper, we ...

IDIAP2004

Generalized Snapshot Isolation and a Prefix-Consistent Implementation

Willy Zwaenepoel, Sameh Mohamed Elnikety, Fernando Pedone

2004

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