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Beller, M.M. (author), Zaidman, A.E. (author), Karpov, Andrey (author)
Micro-clones are tiny duplicated pieces of code, they typically comprise only a few statements or lines. In this paper, we expose the "last line effect," the phenomenon that the last line or statement in a micro-clone is much more likely to contain an error than the previous lines or statements. We do this by analyzing 208 open source...
conference paper 2015
document
Capota, M. (author), Pouwelse, J.A. (author), Epema, D.H.J. (author)
Accounting mechanisms based on credit are used in peer-to-peer systems to track the contribution of peers to the community for the purpose of deterring freeriding and rewarding good behavior. Most often, peers earn credit for uploading files, but other activities might be rewarded in the future as well, such as making useful comments or...
conference paper 2015
document
Manthena, MPV (author), van Adrichem, N.L.M. (author), van den Broek, C. (author), Kuipers, F.A. (author)
conference paper 2015
document
Cavallo, D. (author), Syed, W.H. (author), Neto, A. (author)
We present an analytical method to model artificial dielectric layers (ADLs) of finite height. Starting from the closed-form solution for the scattering from a single layer under plane wave illumination, the formulation is extended to the multi-layer case, by including the higher-order interaction between parallel layers in analytical form. The...
conference paper 2015
document
Perenzoni, M. (author), Cavallo, D. (author)
This paper describes and addresses the challenges that are encountered while designing a 900 GHz antenna for FET detectors using a standard submicron CMOS technology. The reduced metal stack, the problem of surface waves and technology-related rules are taken into account in order to properly design an efficient antenna, with the objective to...
conference paper 2015
document
van Adrichem, N.L.M. (author), Kuipers, F.A. (author)
conference paper 2015
document
Sousa, João A.B. (author), Sorokin, Dimitry Y. (author), Bijmans, Martijn F.M. (author), Plugge, Caroline M. (author), Stams, Alfons J.M. (author)
Haloalkaliphilic microorganisms that grow optimally at high-pH and high-salinity conditions can be found in natural environments such as soda lakes. These globally spread lakes harbour interesting anaerobic microorganisms that have the potential of being applied in existing technologies or create new opportunities. In this review, we discuss...
review 2015
document
Thang, N. V. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The influence of the milling conditions on the nano-scale MnFe(P,Si) particles obtained by surfactant-assisted high-energy ball milling has been investigated by X-ray diffraction (XRD) and magnetic measurements. The presence of surfactant oleic acid prevents the re-welding of crushed particles and enhances the dispersion of nanoparticles in...
journal article 2015
document
Cap, Michal (author), Novak, P. (author), Kleiner, Alexander (author), Selecky, Martin (author), Pechoucek, Michal (author)
journal article 2015
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Kabbedijk, Jaap (author), Bezemer, C. (author), Jansen, Slinger (author), Zaidman, A.E. (author)
Software as a service is frequently offered in a multi-tenant style, where customers of the application and their end-users share resources such as software and hardware among all users, without necessarily sharing data. It is surprising that, with such a popular paradigm, little agreement exists with regard to the definition, domain, and...
journal article 2015
document
Shen, S. (author), Iosup, A. (author), Israel, Assaf (author), Cirne, Walfredo (author), Raz, Danny (author), Epema, D.H.J. (author)
Data enters are at the core of a wide variety of daily ICT utilities, ranging from scientific computing to online gaming. Due to the scale of today's data enters, the failure of computing resources is a common occurrence that may disrupt the availability of ICT services, leading to revenue loss. Although many high availability (HA) techniques...
conference paper 2015
document
Shen, S. (author), Iosup, A. (author), Epema, D.H.J. (author), Hu, Shun-Yun (author)
Although Multi-Avatar Distributed Virtual Environments (MAVEs) such as Real-Time Strategy (RTS) games entertain daily hundreds of millions of online players, their current designs do not scale. For example, even popular RTS games such as the StarCraft series support in a single game instance only up to 16 players and only a few hundreds of...
journal article 2015
document
Jia, L. (author), Schoon, P.B. (author), Pouwelse, J.A. (author), Epema, D.H.J. (author)
User interactions are indispensable for any online network to thrive, especially for BitTorrent‐like and Web real‐time communication‐based distributed online networks that rely on users' collective contributions instead of the help of central servers. User interactions provide fine‐grained information for many applications, such as security...
journal article 2015
document
Gkorou, D. (author), Pouwelse, J.A. (author), Epema, D.H.J. (author)
Distributed reputation systems establish trust among strangers in online communities and provide incentives for users to contribute. In these systems, each user monitors the interactions of others and computes the reputations accordingly. Collecting information for computing the reputations is challenging for the users due to their vulnerability...
conference paper 2015
document
Rodrigues Espinha, T.A. (author), Zaidman, A.E. (author), Gross, H.G. (author)
Web APIs provide a systematic and extensible approach for application-to-application interaction. Developers using web APIs are forced to accompany the API providers in their software evolution tasks. In order to understand the distress caused by this imposition on web API client developers we perform a semi-structured interview with six such...
journal article 2015
document
Aulin, Y. (author), van Sebille, M. (author), Moes, Michiel (author), Grozema, F.C. (author)
This paper studies photochemical upconversion in solutions of octaethyl porphyrin (OEP) and diphenyl anthracene (DPA). The system has been widely used as a standard model system in the field of photochemical upconversion. Although, the kinetics of elementary processes contributing to photochemical upconversion in it have been extensively...
journal article 2015
document
Fuhrmann, T. (author), Cuenca, M. Caro (author), Knöpfler, A. (author), van Leijen, F.J. (author), Mayer, M. (author), Westerhaus, M. (author), Hanssen, R.F. (author), Heck, B (author)
The three geodetic techniques InSAR, levelling and GNSS are complementary w.r.t. (i) the sensitivity to horizontal and vertical displacement components, (ii) the spatial and temporal resolution of the measurements and (iii) the accuracy of the resulting displacements. We present a strategy to robustly combine the displacement estimates of the...
conference paper 2015
document
Ruiz-Armenteros, Antonio M. (author), Delgado, J. Manuel (author), Sousa, Joaquim J. (author), Hanssen, R.F. (author), Caro, Miguel (author), Gil, Antonio J. (author), Galindo-Zaldivar, Jesús (author), Sanz de Galdeano, Carlos (author)
The Betic-Rif cordilleras are build-up in the western Mediterranean by the deformations related to the Eurasian-African plate boundary. The recent NW-SE convergence produces the simultaneous development of large folds and faults in the central part of the Internal Zones of the Betic Cordilleras, which continues active up to Present. The uplift...
conference paper 2015
document
van Wee, G.P. (author)
Land use transport interaction (LUTI) models are often developed to model the interaction between the land use and transport systems for relatively large-scale spatial developments, like new residential or office areas, new main roads, or railway lines. In this paper I argue that we need a next generation of LUTI models that model trends such...
journal article 2015
document
van de Velde, Didier (author)
book chapter 2015
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