Concept

Forme normale (bases de données relationnelles)

Publications associées (158)

Scaling Up Mixed Workloads: A Battle of Data Freshness, Flexibility, and Scheduling

The common "one size does not fit all" paradigm isolates transactional and analytical workloads into separate, specialized database systems. Operational data is periodically replicated to a data warehouse for analytics. Competitiveness of enterprises today ...

Springer-Verlag Berlin2015

NoDB: Efficient Query Execution on Raw Data Files

Anastasia Ailamaki, Miguel Sérgio De Oliveira Branco, Ioannis Alagiannis, Renata Borovica-Gajic

As data collections become larger and larger, users are faced with increasing bottlenecks in their data analysis. More data means more time to prepare and to load the data into the database before executing the desired queries. Many applications already av ...

Assoc Computing Machinery2015

Anti-spoofing: Evaluation Methodologies

Sébastien Marcel, André Anjos, Ivana Chingovska

Following the definition of the task of the anti-spoofing systems to discriminate between real accesses and spoofing attacks, anti-spoofing can be regarded as a binary classification problem. The spoofing databases and the evaluation methodologies for anti ...

Springer US2014

Face liveness detection using dynamic texture

Sébastien Marcel, André Anjos, Tiago De Freitas Pereira

User authentication is an important step to protect information, and in this context, face biometrics is potentially advantageous. Face biometrics is natural, intuitive, easy to use, and less human-invasive. Unfortunately, recent work has revealed that fac ...

2014

An Introduction to the patstat database with example queries

Gaétan Jean A de Rassenfosse

This article provides an introduction to the Patstat patent database. It offers guided examples of 10 popular queries that are relevant for research purposes and that cover the most important data tables. It is targeted at academic researchers and practiti ...

2014

EYEDIAP Database: Data Description and Gaze Tracking Evaluation Benchmarks

Jean-Marc Odobez, Florent Monay Michaud, Kenneth Alberto Funes Mora

The lack of a common benchmark for the evaluation of the gaze estimation task from RGB and RGB-D data is a serious limitation for distinguishing the advantages and disadvantages of the many proposed algorithms found in the literature. The EYEDIAP database ...

Idiap2014

Scaling up Mixed Workloads: a Battle of Data Freshness, Flexibility, and Scheduling

Anastasia Ailamaki, Iraklis Psaroudakis

Springer International Publishing AG2014

Automatic Speech Recognition and Translation of a Swiss German Dialect: Walliserdeutsch

Philip Neil Garner, David Imseng, Thomas Meyer

Walliserdeutsch is a Swiss German dialect spoken in the south west of Switzerland. To investigate the potential of automatic speech processing of Walliserdeutsch, a small database was collected based mainly on broadcast news from a local radio station. Exp ...

2014

Value of Integration in Database and Service Domains

Gianluigi Viscusi

The paper discusses the concept of value of integration in two apparently distant research domains, database and service domains. In the area of virtual database integration, we address the problem of increased utility in an organization resulting from ado ...

IEEE2014

openMat - Management of Acoustic Material (Meta-)Properties Using an Open Source Database Format

Dirk Schröder

While most acoustic material properties are standardized today, the way of digitally storing such data is not. Commercial applications, internal developments and open-source solutions usually use their own proprietary file formats that make a data exchange ...

2013

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