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The TA2 Database – A Multi-Modal Database From Home Entertainment

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A New Look at the Roles of Spinning and Blocking

Anastasia Ailamaki, Frederick Ryan Johnson, Manoussos Gavriil Athanassoulis, Radu Ioan Stoica

Database engines face growing scalability challenges as core counts exponentially increase each processor generation, and the efficiency of synchronization primitives used to protect internal data structures is a crucial factor in overall database performa ...

2009

Deferred-update database replication

Rodrigo Malta Schmidt

This thesis is about the design of high-performance fault-tolerant computer systems. More specifically, it focuses on how to develop database systems that behave correctly and with good performance even in the event of failures. Both performance and depend ...

EPFL2008

The Flux: Creating a Large Annotated Image Database

Sabine Süsstrunk, Patrick Vandewalle, Daniel Tamburrino, Patrick Merryl Marlon Schönmann

From image retrieval to image classification, all research shares one common requirement: a good image database to test or train the algorithms. In order to create a large database of images, we set up a project that allowed gathering a collection of more ...

2008

Evaluation of Background Subtraction Methods

Samira Sheikhi

In this paper we evaluate and compare six well-known foreground from background subtraction methods against a standard database. To be able to compare these algorithms objectively, we have chosen three challengeable scenarios from this database. The algori ...

2008

A Rate-based Prefiltering Approach to BLAST Acceleration

Dionysios Pnevmatikatos, Sotiria Fytraki

DNA sequence comparison and database search have evolved in the last years as a field of strong competition between several reconfigurable hardware computing groups. In this paper we present a BLAST preprocessor that efficiently marks the parts of the data ...

2008

Classifying Materials in the Real World

Barbara Caputo

Classifying materials from their appearance is challenging. Impressive results have been obtained under varying illumination and pose conditions. Still, the effect of scale variations and the possibility to generalize across different material samples are ...

IDIAP2007

Design tools for large networks

Bryn Andrew Martin

The Atlas TDAQ network consists of four separate networks which together total over 8000 ports at 1 Gbit/s, 60 ports at 10 Gbit/s, 200 Ethernet switches at the edge of the network, 6 multi-blade chassis switches at the core and over 20 km of copper and fib ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2007

Extending OWL with Explicit Dependency

Jean Paul Calbimonte Perez

Functional Dependency has been extensively studied in database theory. It provides an elegant formalism for specifying key constraints and is the basis for normalization theory used in Relational database design. Given its known axiomatization through logi ...

2007

Fracture toughness properties in the transition region of the Eurofer97 tempered martensitic steel

Philippe Spätig, Nadine Baluc, Raul Alejandro Bonadé

A fracture toughness database obtained on the Eurofer97 steel (25 mm plate, heat 83697) is presented. The material has been tested in the 'as-received' condition in the lower transition region at temperatures ranging from 173 K down to 123 K. Sub-sized (0. ...

2007

Degradation Processes and Wear of Railway Switches and Crossings: The Swiss Experience

Willem-Jan Zwanenburg

Using databases of the Swiss Federal Railways (SBB), statistical analyses are carried out on the expected lifetime of railway switches (points) and crossings (components). They are attributed to different parameters which influence the speed of degradation ...

2007