Facultat d'Informàtica de Barcelona
http://hdl.handle.net/2117/76529
2024-03-28T23:42:22ZALTAIR-SIGVI: un nuevo sistema para combatir el cibercrimen mitigando las vulnerabilidades = ALTAIR-SIGVI: mitigate vulnerabilities, a new way to work against cybercrime
http://hdl.handle.net/2117/76531
ALTAIR-SIGVI: un nuevo sistema para combatir el cibercrimen mitigando las vulnerabilidades = ALTAIR-SIGVI: mitigate vulnerabilities, a new way to work against cybercrime
Huerta Cerezuela, Víctor
Uno de los retos a los que se enfrentan los administradores de sistemas informáticos hoy es el evitar que los recursos TIC que gestionan se usen para realizar ciberdelitos, o sufrir el impacto en sus propios servicios de ciberataques. En este artículo se explica el reto de poner en marcha un nuevo modelo operativo que permita incrementar la ciberseguridad de nuestras infraestructuras tecnológicas con la herramienta ALTAIR-SIGVI que nos alerta de las vulnerabilidades y nos permite auditar nuestros recursos y servicios informáticos.
2015-08-28T10:00:56ZHuerta Cerezuela, VíctorUno de los retos a los que se enfrentan los administradores de sistemas informáticos hoy es el evitar que los recursos TIC que gestionan se usen para realizar ciberdelitos, o sufrir el impacto en sus propios servicios de ciberataques. En este artículo se explica el reto de poner en marcha un nuevo modelo operativo que permita incrementar la ciberseguridad de nuestras infraestructuras tecnológicas con la herramienta ALTAIR-SIGVI que nos alerta de las vulnerabilidades y nos permite auditar nuestros recursos y servicios informáticos.Experiences of simulation use in industrial projects
http://hdl.handle.net/2117/18476
Experiences of simulation use in industrial projects
Fonseca Casas, Pau; Casanovas Garcia, Josep; Montero García, Jordi; Guasch Petit, Antonio
This paper presents experiences obtained from our involvement in the development
of industrial simulation projects. Some important, common questions are covered, such as the
need to define model behavior using a conceptual model, the problem of choosing the
appropriate tool to code the model, and the validation and verification process required. As we
will see, the scope of applicability of simulation is broad and the tools are therefore diverse. A
clear understanding of the objectives of the simulation, the client’s aims and the resources at
our disposal are key issues that often determine the success of a simulation project.
2013-03-22T10:34:19ZFonseca Casas, PauCasanovas Garcia, JosepMontero García, JordiGuasch Petit, AntonioThis paper presents experiences obtained from our involvement in the development
of industrial simulation projects. Some important, common questions are covered, such as the
need to define model behavior using a conceptual model, the problem of choosing the
appropriate tool to code the model, and the validation and verification process required. As we
will see, the scope of applicability of simulation is broad and the tools are therefore diverse. A
clear understanding of the objectives of the simulation, the client’s aims and the resources at
our disposal are key issues that often determine the success of a simulation project.A stochastic programming model for the thermal optimal day-ahead bid problem with physical futures contracts
http://hdl.handle.net/2117/14109
A stochastic programming model for the thermal optimal day-ahead bid problem with physical futures contracts
Corchero García, Cristina; Heredia, F.-Javier (Francisco Javier)
The reorganization of the electricity industry in Spain completed a new step with the start-up of the Derivatives Market.
One main characteristic of MIBEL’s Derivatives Market is the existence of physical futures contracts; they imply
the obligation to physically settle the energy. The market regulation establishes the mechanism for including those
physical futures in the day-ahead bidding of the Generation Companies. The goal of this work is to optimize coordination
between physical futures contracts and the day-ahead bidding which follow this regulation. We propose a
stochastic quadratic mixed-integer programming model which maximizes the expected profits, taking into account futures
contracts settlement. The model gives the simultaneous optimization for the Day-Ahead Market bidding strategy
and power planning production (unit commitment) for the thermal units of a price-taker Generation Company. The
uncertainty of the Day-Ahead Market price is included in the stochastic model through a set of scenarios. Implementation
details and some first computational experiences for small real cases are presented.
2011-11-29T13:01:40ZCorchero García, CristinaHeredia, F.-Javier (Francisco Javier)The reorganization of the electricity industry in Spain completed a new step with the start-up of the Derivatives Market.
One main characteristic of MIBEL’s Derivatives Market is the existence of physical futures contracts; they imply
the obligation to physically settle the energy. The market regulation establishes the mechanism for including those
physical futures in the day-ahead bidding of the Generation Companies. The goal of this work is to optimize coordination
between physical futures contracts and the day-ahead bidding which follow this regulation. We propose a
stochastic quadratic mixed-integer programming model which maximizes the expected profits, taking into account futures
contracts settlement. The model gives the simultaneous optimization for the Day-Ahead Market bidding strategy
and power planning production (unit commitment) for the thermal units of a price-taker Generation Company. The
uncertainty of the Day-Ahead Market price is included in the stochastic model through a set of scenarios. Implementation
details and some first computational experiences for small real cases are presented.Sharing audiovisual content using a P2P environment based in JXTA
http://hdl.handle.net/2117/9536
Sharing audiovisual content using a P2P environment based in JXTA
Martín Santiago, Rosa María; Casanovas Garcia, Josep; Crespo Sanjusto, José Francisco; Giralt, Joan
Purpose – This paper aims to present the outcome of the i2CAT Foundations’ research and innovation projects that use JXTA P2P technology to share audiovisual content.
Design/methodology/approach – The project consisted of designing and developing a distributed application named eRuc that allows management and sharing of audiovisual content.
Findings – The paper finds that JXTA is suitable to develop P2P applications that share audiovisual files or that interact with different kind of devices. JXTA services and protocols provide an easy
integration with other P2P services and a gain of independence from the topology of the physical network (NAT, firewalls, etc.).
Research limitations/implications – High-quality streaming requires specifically designed P2P architectures. Further testing needs to be performed to evaluate whether the use of JXTA, together with proven, efficient P2P streaming architectures, affect the efficiency of the P2P streaming system.
Practical/implications – P2P technologies have proven to be very efficient for some kind of applications. However, there are no standard frameworks for interoperability and application development may become difficult. JXTA P2P technologies facilitate application development and integration. The
authors have used JXTA in different scenarios related with audiovisual content sharing and have proven its suitability. The current work is focused in P2P streaming. Previous literature suggests that there are
some proven architectures for P2P life streaming. Using JXTA together with them may prove if JTXA is suitable for applications that require high bandwidth and minimum delay.
Originality/value – The paper provides information of value to information management and technology professionals.
2010-10-07T11:24:06ZMartín Santiago, Rosa MaríaCasanovas Garcia, JosepCrespo Sanjusto, José FranciscoGiralt, JoanPurpose – This paper aims to present the outcome of the i2CAT Foundations’ research and innovation projects that use JXTA P2P technology to share audiovisual content.
Design/methodology/approach – The project consisted of designing and developing a distributed application named eRuc that allows management and sharing of audiovisual content.
Findings – The paper finds that JXTA is suitable to develop P2P applications that share audiovisual files or that interact with different kind of devices. JXTA services and protocols provide an easy
integration with other P2P services and a gain of independence from the topology of the physical network (NAT, firewalls, etc.).
Research limitations/implications – High-quality streaming requires specifically designed P2P architectures. Further testing needs to be performed to evaluate whether the use of JXTA, together with proven, efficient P2P streaming architectures, affect the efficiency of the P2P streaming system.
Practical/implications – P2P technologies have proven to be very efficient for some kind of applications. However, there are no standard frameworks for interoperability and application development may become difficult. JXTA P2P technologies facilitate application development and integration. The
authors have used JXTA in different scenarios related with audiovisual content sharing and have proven its suitability. The current work is focused in P2P streaming. Previous literature suggests that there are
some proven architectures for P2P life streaming. Using JXTA together with them may prove if JTXA is suitable for applications that require high bandwidth and minimum delay.
Originality/value – The paper provides information of value to information management and technology professionals.e-Catalunya: un entorno colaborativo y de red social
http://hdl.handle.net/2117/6149
e-Catalunya: un entorno colaborativo y de red social
Casanovas Garcia, Josep; Crespo Sanjusto, José Francisco; Martín Santiago, Rosa María
e-Catalunya es una iniciativa del Departamento de Presidencia de la Generalitat de Catalunya para
desarrollar, integrar y poner en marcha, en colaboración con la Universidad Politécnica de Cataluña, una
plataforma de colaboración y de red social basada en software libre.
La plataforma se estructura en torno a portales o comunidades de diferentes colectivos, abarcando tanto
sectores profesionales como ciudadanos. Dentro de cada portal, los usuarios pueden auto-expresarse,
relacionarse, interactuar mediante herramientas de colaboración como blogs, wikis, foros, listas de
distribución, etc.
e-Catalunya utiliza mecanismos de red social basados en la información explícita introducida por sus
usuarios o en información obtenida por el propio sistema. Integra desarrollos propios con herramientas de
software libre.
2010-01-14T10:46:52ZCasanovas Garcia, JosepCrespo Sanjusto, José FranciscoMartín Santiago, Rosa Maríae-Catalunya es una iniciativa del Departamento de Presidencia de la Generalitat de Catalunya para
desarrollar, integrar y poner en marcha, en colaboración con la Universidad Politécnica de Cataluña, una
plataforma de colaboración y de red social basada en software libre.
La plataforma se estructura en torno a portales o comunidades de diferentes colectivos, abarcando tanto
sectores profesionales como ciudadanos. Dentro de cada portal, los usuarios pueden auto-expresarse,
relacionarse, interactuar mediante herramientas de colaboración como blogs, wikis, foros, listas de
distribución, etc.
e-Catalunya utiliza mecanismos de red social basados en la información explícita introducida por sus
usuarios o en información obtenida por el propio sistema. Integra desarrollos propios con herramientas de
software libre.Gestión e intercambio de contenidos audiovisuales en un entorno P2P basado en JXTA
http://hdl.handle.net/2117/6147
Gestión e intercambio de contenidos audiovisuales en un entorno P2P basado en JXTA
Casanovas Garcia, Josep; Crespo Sanjusto, José Francisco; Giralt, Joan; Martín Santiago, Rosa María
En el marco de la Fundación i2CAT se ha desarrollado una serie de proyectos de investigación e innovación
en los que se han utilizado tecnologías P2P para compartir contenidos audiovisuales.
En este artículo se presentan los resultados de los proyectos desarrollados hasta la actualidad, el estado del
arte de la tecnología P2P aplicada al streaming en directo y el trabajo actual que se está desarrollando
dentro del proyecto MACHINE.
2010-01-14T10:25:41ZCasanovas Garcia, JosepCrespo Sanjusto, José FranciscoGiralt, JoanMartín Santiago, Rosa MaríaEn el marco de la Fundación i2CAT se ha desarrollado una serie de proyectos de investigación e innovación
en los que se han utilizado tecnologías P2P para compartir contenidos audiovisuales.
En este artículo se presentan los resultados de los proyectos desarrollados hasta la actualidad, el estado del
arte de la tecnología P2P aplicada al streaming en directo y el trabajo actual que se está desarrollando
dentro del proyecto MACHINE.