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  • Research software . 2010
    Open Source English
    Authors: 
    La Rocca, Giuseppe;
    Publisher: EGI Applications Database

    Genetic optimization (GO) has been proposed in electromagnetism, and has found many successful applications, in the last decade. However GO is inherently a dimensioning approach, and as such it has quite a limited use in antenna design. The full power of evolution-inspired methods has been unchained in antenna design only when Genetic Programming (GP) approaches have been proposed. In fact, GP is able to find a suitable solution of the problem without any initial assumption about its size or shape. In this work we successfully applied the system to design small wire antennas with a significant gain and with a bandwidth considerably larger than the standard one (Yagi antennas). Key point of the design are the requirements of reduced size and robustness w.r.t. tolerances and atmospheric agents. A wire antenna can be mathematically modelled as a set of cylinder displaced in 3D space. The space of all feasible solutions, the search space, is the set of all possible positions and orientations for N segments (with N arbitrary). GP allow to do an effective search of a near optimum solution in such a search space. The software is build on the basis of two other open source software: ECJ (Evolutionary Computation in Java), a framework developed at George Mason University that provide the basic functionalities to deal with GP, and NEC2++ (Numerical Electromagnetic Code), a C++ porting of the original software developed at Lawrence Livermore Laboratory for the analysis, by a Method of Moments, of electromagnetic properties of wire structures .

  • Research software . 2014
    Open Source English
    Authors: 
    Laizet, Yec’han;
    Publisher: EGI Applications Database

    The program structure is a free software package for using multi-locus genotype data to investigate population structure. Its uses include inferring the presence of distinct populations, assigning individuals to populations, studying hybrid zones, identifying migrants and admixed individuals, and estimating population allele frequencies in situations where many individuals are migrants or admixed. It can be applied to most of the commonly-used genetic markers, including SNPS, microsatellites, RFLPs and AFLPs. The basic algorithm was described by Pritchard, Stephens & Donnelly (2000). Extensions to the method were published by Falush, Stephens and Pritchard (2003), and (2007) and Hubisz, Falush, Stephens and Pritchard (2009).

  • Research software . 2012
    Open Source English
    Authors: 
    Barbera, Roberto; Fargetta, Marco; Ardizzone, Valeria;
    Publisher: EGI Applications Database

    Aim of DECIDE (Diagnostic Enhancement of Confidence by an International Distributed Environment) Science Gateway is to provide a service for the computer-aided extraction of diagnostic markers for Alzheimer’s disease and schizophrenia from medical images.

  • Research software . 2010
    Open Source English
    Authors: 
    Scifo, Salvatore;
    Publisher: EGI Applications Database

    Experiment: The porting of classical enterprise applications from the standard internet infrastructure to Grid leads to deal with many troubles for both design and programming levels. This work covers some aspects of the integration or design and development of Data Based applications interfaced to the EGEE gLite Grid Middleware. ApplicationT-GSAF explores the capability of this infrastructure in order to define a model to adopt it as a Digital Repository. Since Data Grid Services (File Catalogues, Metadata Catalogues, Storage Elements and newest Grid Database services) are independent each from other and work in a \ stand-alone\ mode, applications must refer to them through specialized software components in a decoupled way according to a vertical architecture. This fragmentation leads to deal with two problems: for each application, developers must always write the same code in order to include data services capabilities and take care about the atomicity, coherence, and the synchronization of data manipulation. Furthermore, there are neither tools nor services that help clients to maintain semantic coherence and integrity consistency among files stored on the SEs and their entries inside the File Catalogue and the Metadata Catalogue. This is a big limitation of the Grid Storage and the effort of this work has been addressed in this direction trying to think about a software platform that could solve these common problems. T-GSAF identifies a kind of Grid Software Engineering Pattern offering a standard solution for a common problems and shared features according to the principle of the \ building blocks\ . T-GSAF is an OO framework realized by a set of Design Patterns, it is built on top of the Grid Data Services and exposes classes and related methods that hide the complexity and the fragmentation of the several underlying APIs for applications located above. It also enhances and improves this functionalities providing a powerful Transaction Manager Service to provide applications of

  • Research software . 2010
    Open Source English
    Authors: 
    Russo, Gaetano; D'Agostino, Marcello;
    Publisher: EGI Applications Database

    The goal of this application is to make clustering of explosion events automatically, recorded by infrasound sensors, placed on Mt. Etna volcano. The application is composed by of five modules: Events triggerin system Cross-correlation clustering system Features extractor system Physical description Neural network supervised classification system Triggering system We get the events by using a method based on standard deviation squared (S.D.S) series of the infrasonic signal. We use two thresholds on the S.D.S series and we declare the events by using the upper one and their onset and ends points by using the lower one. Cross-correlation clustering system We classify the events using a cross correlation algorithm (Green and Nueberg 2006), where a maximum correlation coefficient n X n matrix, called M, for a buffer containing n events is built. The element mxy represents the maximum of the correlation function between the two events x and y, changing the position of the event x with respect to the event y, with a specific overlap, until the maximum is found. We adopt a modified version of the algorithm using another two thresholds in this step. Features extractor system From every family found, we get two features that give us the idea of the performance of the classification and to make more selective the clustering done at previous step, trying to decrease the number of the families found. The two features are, frequency peaks and the Q factor obtained by using the sompi method. Physical description this step is referred to the localization of the explosions with the semblance method, and to the time distribution of the events. This step gives physical information about the families found. Neural network supervised classification system Finally we train a neural network to classify events never seen, into the families found, using the algorithm described above, automatically. The algor

  • Research software . 2013
    Open Source English
    Authors: 
    Scardaci, Diego;
    Publisher: EGI Applications Database

    The agINFRA Science Gateway meshes-up Grid Computing and Cloud Computing enabled applications and lets users access them in an easy, transparent and ubiquitous way. It is based on Catania Science Gateway Framework.

  • Research software . 2010
    Open Source English
    Authors: 
    Mettivier, Giovanni;
    Publisher: EGI Applications Database

    Realization of a Medical Picture Archiving and Communication System using the Grid technology between different italian hospital

  • Research software . 2018
    Open Source English Python
    Authors: 
    Fernandez, Enol;
    Publisher: EGI Applications Database

    Simple nagios probe that checks the status of a EGI Notebooks deployment

  • Open Source English
    Authors: 
    Konstantin Sering; Marc Weitz; David-Elias Künstle; Lennart Schneider; Elnaz Shafaei-Bajestan;
    Publisher: Zenodo
    Project: EC | WIDE (742545)

    This release includes the following changes: for preprocess.create_event_file we rename symbols to allowed_symbols to make this argument more self-explainable the default value of allowed_symbols is now most inclusive and it is a keyword only argument allowed_symbols can take a filter function, which defines on a character by character basis, if this character should be included into the event file fixed a bug in the writing of file names in the corpus module no deprecation warnings will be introduced in this release and this release breaks some API, so please check, if your code still runs wheels for linux should be released from now on test coverage is increased and explicitly tests filter functionality and a non-ascii charater sets; running --runslow is successfully completes all tests now package maintenance is now done with pypoetry instead of a combination of setuptools, tox, and a Makefile we stop signing the package with a gpg key with this release as it is not supported by pypoetry and seems not to have been adapted by the Python community adds benchmark to the documentation, which compares pyndl with ndl2 and ndl restructures the documentation to improve readability Thanks to @Trybnetic and @dekuenstle , who made this release possible and to @frankier who raised good issues and pointed out areas of improvement.

  • Research software . 2013
    Open Source English
    Authors: 
    Scardaci, Diego;
    Publisher: EGI Applications Database

    The Catania Science Gateway Framework (CSGF) has been developed by INFN, Division of Catania (Italy), to provide application developers with a tool to create Science Gateways in short time and in a very easy way. CSGF is made of a set of libraries to manage Authentication & Authorization mechanisms and to interact with several different kinds of DCIs (grid, cloud, HPC, local, etc.). The CSGF is fully compliant to the EGI.eu policies described in Section 10.1.

Advanced search in
Research products
arrow_drop_down
Searching FieldsTerms
Any field
arrow_drop_down
includes
arrow_drop_down
Include:
523 Research products, page 1 of 53
  • Research software . 2010
    Open Source English
    Authors: 
    La Rocca, Giuseppe;
    Publisher: EGI Applications Database

    Genetic optimization (GO) has been proposed in electromagnetism, and has found many successful applications, in the last decade. However GO is inherently a dimensioning approach, and as such it has quite a limited use in antenna design. The full power of evolution-inspired methods has been unchained in antenna design only when Genetic Programming (GP) approaches have been proposed. In fact, GP is able to find a suitable solution of the problem without any initial assumption about its size or shape. In this work we successfully applied the system to design small wire antennas with a significant gain and with a bandwidth considerably larger than the standard one (Yagi antennas). Key point of the design are the requirements of reduced size and robustness w.r.t. tolerances and atmospheric agents. A wire antenna can be mathematically modelled as a set of cylinder displaced in 3D space. The space of all feasible solutions, the search space, is the set of all possible positions and orientations for N segments (with N arbitrary). GP allow to do an effective search of a near optimum solution in such a search space. The software is build on the basis of two other open source software: ECJ (Evolutionary Computation in Java), a framework developed at George Mason University that provide the basic functionalities to deal with GP, and NEC2++ (Numerical Electromagnetic Code), a C++ porting of the original software developed at Lawrence Livermore Laboratory for the analysis, by a Method of Moments, of electromagnetic properties of wire structures .

  • Research software . 2014
    Open Source English
    Authors: 
    Laizet, Yec’han;
    Publisher: EGI Applications Database

    The program structure is a free software package for using multi-locus genotype data to investigate population structure. Its uses include inferring the presence of distinct populations, assigning individuals to populations, studying hybrid zones, identifying migrants and admixed individuals, and estimating population allele frequencies in situations where many individuals are migrants or admixed. It can be applied to most of the commonly-used genetic markers, including SNPS, microsatellites, RFLPs and AFLPs. The basic algorithm was described by Pritchard, Stephens & Donnelly (2000). Extensions to the method were published by Falush, Stephens and Pritchard (2003), and (2007) and Hubisz, Falush, Stephens and Pritchard (2009).

  • Research software . 2012
    Open Source English
    Authors: 
    Barbera, Roberto; Fargetta, Marco; Ardizzone, Valeria;
    Publisher: EGI Applications Database

    Aim of DECIDE (Diagnostic Enhancement of Confidence by an International Distributed Environment) Science Gateway is to provide a service for the computer-aided extraction of diagnostic markers for Alzheimer’s disease and schizophrenia from medical images.

  • Research software . 2010
    Open Source English
    Authors: 
    Scifo, Salvatore;
    Publisher: EGI Applications Database

    Experiment: The porting of classical enterprise applications from the standard internet infrastructure to Grid leads to deal with many troubles for both design and programming levels. This work covers some aspects of the integration or design and development of Data Based applications interfaced to the EGEE gLite Grid Middleware. ApplicationT-GSAF explores the capability of this infrastructure in order to define a model to adopt it as a Digital Repository. Since Data Grid Services (File Catalogues, Metadata Catalogues, Storage Elements and newest Grid Database services) are independent each from other and work in a \ stand-alone\ mode, applications must refer to them through specialized software components in a decoupled way according to a vertical architecture. This fragmentation leads to deal with two problems: for each application, developers must always write the same code in order to include data services capabilities and take care about the atomicity, coherence, and the synchronization of data manipulation. Furthermore, there are neither tools nor services that help clients to maintain semantic coherence and integrity consistency among files stored on the SEs and their entries inside the File Catalogue and the Metadata Catalogue. This is a big limitation of the Grid Storage and the effort of this work has been addressed in this direction trying to think about a software platform that could solve these common problems. T-GSAF identifies a kind of Grid Software Engineering Pattern offering a standard solution for a common problems and shared features according to the principle of the \ building blocks\ . T-GSAF is an OO framework realized by a set of Design Patterns, it is built on top of the Grid Data Services and exposes classes and related methods that hide the complexity and the fragmentation of the several underlying APIs for applications located above. It also enhances and improves this functionalities providing a powerful Transaction Manager Service to provide applications of

  • Research software . 2010
    Open Source English
    Authors: 
    Russo, Gaetano; D'Agostino, Marcello;
    Publisher: EGI Applications Database

    The goal of this application is to make clustering of explosion events automatically, recorded by infrasound sensors, placed on Mt. Etna volcano. The application is composed by of five modules: Events triggerin system Cross-correlation clustering system Features extractor system Physical description Neural network supervised classification system Triggering system We get the events by using a method based on standard deviation squared (S.D.S) series of the infrasonic signal. We use two thresholds on the S.D.S series and we declare the events by using the upper one and their onset and ends points by using the lower one. Cross-correlation clustering system We classify the events using a cross correlation algorithm (Green and Nueberg 2006), where a maximum correlation coefficient n X n matrix, called M, for a buffer containing n events is built. The element mxy represents the maximum of the correlation function between the two events x and y, changing the position of the event x with respect to the event y, with a specific overlap, until the maximum is found. We adopt a modified version of the algorithm using another two thresholds in this step. Features extractor system From every family found, we get two features that give us the idea of the performance of the classification and to make more selective the clustering done at previous step, trying to decrease the number of the families found. The two features are, frequency peaks and the Q factor obtained by using the sompi method. Physical description this step is referred to the localization of the explosions with the semblance method, and to the time distribution of the events. This step gives physical information about the families found. Neural network supervised classification system Finally we train a neural network to classify events never seen, into the families found, using the algorithm described above, automatically. The algor

  • Research software . 2013
    Open Source English
    Authors: 
    Scardaci, Diego;
    Publisher: EGI Applications Database

    The agINFRA Science Gateway meshes-up Grid Computing and Cloud Computing enabled applications and lets users access them in an easy, transparent and ubiquitous way. It is based on Catania Science Gateway Framework.

  • Research software . 2010
    Open Source English
    Authors: 
    Mettivier, Giovanni;
    Publisher: EGI Applications Database

    Realization of a Medical Picture Archiving and Communication System using the Grid technology between different italian hospital

  • Research software . 2018
    Open Source English Python
    Authors: 
    Fernandez, Enol;
    Publisher: EGI Applications Database

    Simple nagios probe that checks the status of a EGI Notebooks deployment

  • Open Source English
    Authors: 
    Konstantin Sering; Marc Weitz; David-Elias Künstle; Lennart Schneider; Elnaz Shafaei-Bajestan;
    Publisher: Zenodo
    Project: EC | WIDE (742545)

    This release includes the following changes: for preprocess.create_event_file we rename symbols to allowed_symbols to make this argument more self-explainable the default value of allowed_symbols is now most inclusive and it is a keyword only argument allowed_symbols can take a filter function, which defines on a character by character basis, if this character should be included into the event file fixed a bug in the writing of file names in the corpus module no deprecation warnings will be introduced in this release and this release breaks some API, so please check, if your code still runs wheels for linux should be released from now on test coverage is increased and explicitly tests filter functionality and a non-ascii charater sets; running --runslow is successfully completes all tests now package maintenance is now done with pypoetry instead of a combination of setuptools, tox, and a Makefile we stop signing the package with a gpg key with this release as it is not supported by pypoetry and seems not to have been adapted by the Python community adds benchmark to the documentation, which compares pyndl with ndl2 and ndl restructures the documentation to improve readability Thanks to @Trybnetic and @dekuenstle , who made this release possible and to @frankier who raised good issues and pointed out areas of improvement.

  • Research software . 2013
    Open Source English
    Authors: 
    Scardaci, Diego;
    Publisher: EGI Applications Database

    The Catania Science Gateway Framework (CSGF) has been developed by INFN, Division of Catania (Italy), to provide application developers with a tool to create Science Gateways in short time and in a very easy way. CSGF is made of a set of libraries to manage Authentication & Authorization mechanisms and to interact with several different kinds of DCIs (grid, cloud, HPC, local, etc.). The CSGF is fully compliant to the EGI.eu policies described in Section 10.1.

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