Now showing items 5112-5131 of 78940

  • An empirical analysis of the resiliency of Ro/Ro and Ro/Pax terminal operations 

    Saurí Marchán, Sergi; Morales Fusco, Pau; Martín Alcalde, Enrique (2012)
    Conference report
    Restricted access - publisher's policy
    Regular maritime lines with roll-on roll-off vessels must offer a reliable service without substantial cost increases in order to be competitive. Port terminals need to be able to respond quickly to any disturbance that ...
  • An empirical approach to rockfall fragmentation 

    Corominas Dulcet, Jordi; Ruiz Carulla, Roger; Mavrouli, Olga Christina (2015)
    Conference lecture
    Restricted access - publisher's policy
    The impact-induced rock mass fragmentation in a rockfall is analyzed by comparing the In Situ Block Size Distribution (IBSD) at the cliff face and the Rockfall Block Size Distribution (RBSD) on the slope. The IBSD is ...
  • An empirical comparison of machine learning techniques for dam behaviour modelling 

    Salazar González, Fernando; Toledo Municio, Miguel Ángel; Oñate Ibáñez de Navarra, Eugenio; Morán Moya, Rafael (2015-09)
    Article
    Restricted access - publisher's policy
    Predictive models are essential in dam safety assessment. Both deterministic and statistical models applied in the day-to-day practice have demonstrated to be useful, although they show relevant limitations at the same ...
  • An Empirical equation to estimate mineral dust concentrations from visibility observations in Northern Africa 

    Camino, C; Cuevas, Emilio; Basart, Sara; Alonso Perez, Silvia; Baldasano Recio, José María; Terradellas, E.; Marticorena, B; Berjon, A; Rodriguez, S (2015-03-01)
    Article
    Restricted access - publisher's policy
    This paper presents a new empirical equation relating horizontal visibility and PM10 dust concentrations. The new empirical equation (IZO-Eq) is derived from observations performed at the Izana Atmospheric Observatory (IZO, ...
  • An empirical evaluation of five small area estimators 

    Costa, Àlex; Satorra, A.; Ventura, Eva (Institut d'Estadística de Catalunya, 2003)
    Article
    Open Access
    This paper compares five small area estimators. We use Monte Carlo simulation in the context of both artificial and real populations. In addition to the direct and indirect estimators, we consider the optimal composite ...
  • An empirical evaluation of High-Level Synthesis languages and tools for database acceleration 

    Arcas Abella, Oriol; Ndu, Geoffrey; Sonmez, N.; Ghasempour, Mohsen; Armejach, Adrià; Navaridas, Javier; Song, Wei; Mawer, John; Cristal Kestelman, Adrián; Lujan, Mikel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Open Access
    High Level Synthesis (HLS) languages and tools are emerging as the most promising technique to make FPGAs more accessible to software developers. Nevertheless, picking the most suitable HLS for a certain class of algorithms ...
  • An empirical investigation into the changing visual identity of full service and low cost carriers, 2000 vs. 2012 

    Taylor, Adam; Pitfield, David E.; Budd, Lucy (Escola Tècnica Superior d'Enginyeries Industrial i Aeronàutica de Terrassa. Universitat Politècnica de Catalunya, 2013-12)
    Article
    Open Access
    Purpose: This paper reports on the findings of an analysis of the visual branding of over 630 airline tail fins as they appeared in 2000 and 2012. Design/methodology: Unlike existing studies of airlines’ visual identities ...
  • An empirical overview of the No Free Lunch Theorem and its effect on Real-World Machine Learning Classification 

    Gomez Guillen, David; Rojas Espinosa, Alfonso (2016-01-01)
    Article
    Open Access
    A sizable amount of research has been done to improve the mechanisms for knowledge extraction such as machine learning classification or regression. Quite unintuitively, the no free lunch (NFL) theorem states that all ...
  • An empirical study about catering theory of dividends: The proof from Chinese stock market 

    Lu, Xiaoguang; Xi, Yiran; Lu, Diqian (OmniaScience, 2014-05)
    Article
    Open Access
    Purpose: This paper aims to study the remarkable effect of dividends catering in Chinese stock market, and its significance on dividend policy and investment decisions. Is there a significant difference in operation status ...
  • An empirical study of effective capacity throughputs in 802.11 wireless networks 

    Davy, Alan; Meskill, Brian; Domingo Pascual, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
    Open Access
    Current literature defines the effective capacity of a wireless link as the maximum throughput that can be supported while meeting specific Quality of Service targets on packet delay. This metric can be harnessed for a ...
  • An empirical study of semi-supervised structured conditional models for dependency parsing 

    Suzuki, Jun; Isozaki, Hideki; Carreras Pérez, Xavier; Collins, Michael (2009)
    Conference report
    Open Access
    This paper describes an empirical study of high-performance dependency parsers based on a semi-supervised learning approach. We describe an extension of semisupervised structured conditional models (SS-SCMs) to the dependency ...
  • An empirical study on project management of reconstruction after disaster based on interpretation system 

    Zhou, Jun; Wang, Hanzhao (OmniaScience, 2015-12)
    Article
    Open Access
    Purpose: Recently natural disasters frequently occur all over the world. However, the stakeholder management of post-disaster reconstruction is often a neglected field because of its particularity. This study investigates ...
  • An empirical study to validate the use of ontological guidelines in the creation of i* models 

    Gomes, Ramilton Costa; Guizzardi, Renata Silva Sousa; Franch Gutiérrez, Javier; Guizzardi, Giancarlo; Wieringa, Roel (CEUR-WS.org, 2015)
    Conference report
    Open Access
    i* is a well known goal modeling framework, developed by a large and geographically dispersed research community. Currently, i* users tend to ascribe different and conflicting meanings to its constructs, leading to a non­ ...
  • An emulator framework for a new radio resource management for QoS guaranteed services in W-CDMA 

    Sallent Roig, José Oriol; Pérez Romero, Jordi; Casadevall Palacio, Fernando José; Agustí Comes, Ramon (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-10)
    Article
    Open Access
    In the context of third-generation (3G) systems a mix of services with different requirements are expected. Consequently, packet scheduling mechanisms for quality of service (QoS) guarantees will play a key role. This paper ...
  • An energy efficient protocol architecture for m-Health systems 

    Tennina, Stefano; Kartsakli, Elli; Graziosi, Fabio; Santos, Manuel; Lalos, Aristeidis; Antonopoulos, Angelos; Mekikis, Prodromos Vasileios; Di Renzo, Marco; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2014)
    Conference report
    Restricted access - publisher's policy
    Contemporary technologies as implemented in the field of health care have provided the everyday clinical practice with a plethora of tools to be used in various settings. However, from all established and emerging applications, ...
  • An energy efficient vertical handover decision algorithm 

    Pons, Xavier (2015-03-26)
    Conference lecture
    Restricted access - publisher's policy
    As wireless communications evolve towards heterogeneous networks, mobile terminals have been enabled to handover seamlessly from one network to another. At the same time, the continuous increase in the terminal power ...
  • An energy management strategy for plug-in hybrid electric vehicles 

    Bader, Benjamin (Universitat Politècnica de Catalunya, 2013-11-29)
    Doctoral thesis
    Open Access
  • An energy model for the acoustic insulation of absorbing materials 

    Díaz Cereceda, Cristina; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (Sociedad Española de Métodos Numéricos en Ingeniería (SEMNI), 2013)
    Conference report
    Open Access
    In this work an energy model for the acoustic insulation of absorbing ma- terials is shown. This model is an extension of Statistical Energy Analysis (SEA) [1] in order to account for the effect of non-conservative ...
  • An energy-efficient and scalable eDRAM-based register file architecture for GPGPU 

    Jing, Naifeng; Shen, Yao; Lu, Yao; Ganapathy, Shrikanth; Mao, Zhigang; Guo, Minyi; Canal Corretger, Ramon; Liang, Xiaoyao (ACM, 2013)
    Conference report
    Restricted access - publisher's policy
    The heavily-threaded data processing demands of streaming multiprocessors (SM) in a GPGPU require a large register file (RF). The fast increasing size of the RF makes the area cost and power consumption unaffordable for ...
  • An energy-oriented optimization algorithm for solving the cell assignment problem in 4G-LTE communication networks 

    Rubio-Loyola, Javier; Gonzalez-Hernandez, Loreto; Díez Fernández, Luis Francisco; Agüero Calvo, Ramón; Serrat Fernández, Juan (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    This paper presents a novel algorithm for solving the cell assignment problem with special emphasis on energy awareness. The algorithm aims at finding the minimum number of base stations (BSs) that have to be turned on to ...