University of Valladolid

Displaying 1-3 of 3 results

  • White Papers // Mar 2011

    An Empirical Study of Real-World SPARQL Queries

    Understanding how users tailor their SPARQL queries is crucial when designing query evaluation engines or ne-tuning RDF stores with performance in mind. In this paper the authors analyze 3 million real-world SPARQL queries extracted from logs of the DBPedia and SWDF public endpoints. They aim at finding which are the...

    Provided By University of Valladolid

  • White Papers // Mar 2010

    Hybrid RSS-RTT Localization Scheme for Indoor Wireless Networks

    Nowadays, a variety of information related to the distance between two wireless devices can be easily obtained. This paper presents a hybrid localization scheme that combines Received Signal Strength (RSS) and Round-Trip Time (RTT) information with the aim of improving the previous localization schemes. The hybrid localization scheme is based...

    Provided By University of Valladolid

  • White Papers // Feb 2010

    Accurate and Integrated Localization System for Indoor Environments Based on IEEE 802.11 Round-Trip Time Measurements

    The presence of (Non Line Of Sight) NLOS propagation paths has been considered the main drawback for localization schemes to estimate the position of a (Mobile User) MU in an indoor environment. This paper presents a comprehensive wireless localization system based on (Round-Trip Time) RTT measurements in an unmodified IEEE...

    Provided By University of Valladolid

  • White Papers // Mar 2011

    An Empirical Study of Real-World SPARQL Queries

    Understanding how users tailor their SPARQL queries is crucial when designing query evaluation engines or ne-tuning RDF stores with performance in mind. In this paper the authors analyze 3 million real-world SPARQL queries extracted from logs of the DBPedia and SWDF public endpoints. They aim at finding which are the...

    Provided By University of Valladolid

  • White Papers // Feb 2010

    Accurate and Integrated Localization System for Indoor Environments Based on IEEE 802.11 Round-Trip Time Measurements

    The presence of (Non Line Of Sight) NLOS propagation paths has been considered the main drawback for localization schemes to estimate the position of a (Mobile User) MU in an indoor environment. This paper presents a comprehensive wireless localization system based on (Round-Trip Time) RTT measurements in an unmodified IEEE...

    Provided By University of Valladolid

  • White Papers // Mar 2010

    Hybrid RSS-RTT Localization Scheme for Indoor Wireless Networks

    Nowadays, a variety of information related to the distance between two wireless devices can be easily obtained. This paper presents a hybrid localization scheme that combines Received Signal Strength (RSS) and Round-Trip Time (RTT) information with the aim of improving the previous localization schemes. The hybrid localization scheme is based...

    Provided By University of Valladolid