Sistema de recomendación basado en la reputación de opiniones personales subjetivas

La UC3M ofrece un proceso automatizado de gestión de reputación que personaliza las recomendaciones en procesos de comercio electrónico. La aplicación de criterios subjetivos es uno de los factores más significativos para confiar en proveedores de servicios. Buscamos empresas interesadas en este sistema para integrarlo en su modelo de negocio electrónico, tanto si las recomendaciones son el objeto principal de la empresa, como si es un servicio de valor añadido al principal objetivo de negocio

Recommender system based on reputation of personal and subjective opinions

University Carlos III of Madrid offers a new automated process to manage reputation. It will make customized recommendations easier in electronic commerce interactions. One of the most significant points to trust recommendations and providers is to consider subjective and personal criteria. We are looking for companies that want to have a personal recommender system included in their business. The recommendations may be the main provided service, or just a complementary service

Surveillance software based on agents system

The Applied Artificial Intelligence group has developed a surveillance system based on the agents theory and multiagents system in the Distributed Artificial Intelligence. The system allows that each data acquisition source could operate independently, but coordinated by a central host. The technology improves the surveillance process, reducing the human attention and introducing automatic alarms. They are looking for technical cooperation of partners interested in the technology.Contrato Programa de Comercialización e Internacionalización. Sistema Regional de Investigación Científica e Innovación Tecnológica. (Comunidad de Madrid; Universidad Carlos III de Madrid

The Motherhood Wage Penalty in a Mediterranean Country: The Case of Spain

We present evidence for the motherhood wage penalty in Spain as a representative Southern European Mediterranean country. We use the European Community Household Panel (ECHP, 1994-2001) to estimate, from both pool and fixed-effects methods, a wage equation in terms of observed variables and other non-observed individual characteristics. The empirical results confirm that there is clear evidence of a wage penalty for Spanish working women with children. Specifically, the fact that there is a birth in the family during the current year means that the woman loses 9% of her wage. We also find that having one child living in the household means a significant loss in wages of 6%, having two children, almost 14%, and having three or more, more than 15%.motherhood wage penalty, fixed-effects estimation, Spain

Intra-household Time Allocation: Gender Differences in Caring for Children

Der vorliegende Beitrag untersucht auf Basis von Daten des Sozio-oekonomischen Panels für Deutschland (SOEP), inwieweit selbständige Ausländer in Deutschland überdurchschnittlich hohe Einkommen erzielen. Die Untersuchung zeigt, dass ausländische Selbständige insgesamt höhere Einkommen erzielen als angestellt tätige Ausländer und dass der Unterschied größer ist als bei Selbständigen deutscher Nationalität. Die Konsequenzen dieser Untersuchungsergebnisse für Wirtschaftspolitikund Gründungslehre werden diskutiert. Die Ergebnisse der Untersuchung zeigen differenzierten Forschungsbedarf im Hinblick auf unterschiedliche Optionen der Entrepreneurship Education. This paper analyses the intra-household allocation of time to show gender differences in childcare. In the framework of a general efficiency approach, hours spent on childcare by each parent are regressed against individual and household characteristics, for five samples (Denmark, France, Germany, Italy and Spain), with data being drawn from the European Community Household Panel-ECHP (1994-2001). Empirical results show a clear inequality in childcare between fathers and mothers, with this being more evident in Mediterranean countries. Panel data estimates reveal that, in general, caring tasks are mainly influenced by the presence of young children in the household, by the total non-labor income, and by the ratio of mothers' non-labor income to family's non-labor income, with this latter variable exhibiting a different behavior across genders and across countries.Childcare, gender differences, intra-household allocation, time use

Using Virtual Worlds and Sloodle to Develop Educative Applications

Proceedings of: International Workshop on evidenced-based Technology Enhanced Learning (ebTEL'12). Salamanca (Spain), 28-30 March 2012Education is one of the most interesting applications of virtual worlds, as they can create opportunities to offer educative contents with the advantages of online courses, with the feel of "presence" that this immersive environments can provide. While most of social networking resources are mainly focused on sharing contents using a traditional web interface, virtual worlds facilitate the creation of social networks that enhance the perception and communication among its users through the use of additional modalities. In this paper we analyze the main resources provided by the Second Life virtual world and Sloodle to develop educational environments and describe their application in a educative project at the Universidad Carlos III de MadridResearch funded by projects CICYT TIN2011-28620-C02-01, CICYT TEC 2011-28626-C02-02, CAM CONTEXTS (S2009/TIC-1485), and DPS2008-07029-C02-02.Publicad

The DI@L-log System: Integration of Speech Technologies in Healthcare Applications

Proceedings of: XIV Conferencia de la Asociación Española para la Inteligencia Artificial CAEPIA'11. AIHealth. I Workshop on Artificial Intelligence in Healthcare and Biomedical Applications. San Cristobal de la Laguna, Tenerife. 07-10 noviembre 2011In this paper, we describe a spoken dialog system developed to collect monitored data from patients su ering from diabetes. The dialog model of this system has been developed by means of a statistical methodology for automatically exploring the dialog space and learning new enhanced dialog strategies from a dialog corpus. A dialog simulation technique has been applied to acquire data required to train the dialog model and then explore the new dialog strategies. A set of measures has also been defined to evaluate the dialog strategy. The results of the evaluation show how the dialog manager deviates from the initially predefined strategy, allowing the dialog manager to tackle new situations and generate new coherent answers for the situations already present in the initial corpus. The proposed technique can be used not only to develop new dialog managers but also to explore new enhanced strategies.Research funded by projects CICYT TIN 2008-06742-C02-02/TSI, CICYT TEC 2008-06732-C02-02/TEC, CAM CONTEXTS (S2009/TIC-1485), and DPS 2008-07029- C02-02.Publicad

Intra-Household Time Allocation: Gender Differences in Caring for Children

This paper analyses the intra-household allocation of time to show gender differences in childcare. In the framework of a general efficiency approach, hours spent on childcare by each parent are regressed against individual and household characteristics, for five samples (Denmark, France, Germany, Italy and Spain), with data being drawn from the European Community Household Panel-ECHP (1994-2001). Empirical results show a clear inequality in childcare between fathers and mothers, with this being more evident in Mediterranean countries. Panel data estimates reveal that, in general, caring tasks are mainly influenced by the presence of young children in the household, by the total non-labor income, and by the ratio of mothers' non-labor income to family's non-labor income, with this latter variable exhibiting a different behavior across genders and across countries.childcare, gender differences, intra-household allocation, time use

A Multi-Agent Approach for Provisioning of e-Services in u-Commerce Environments

Purpose: Taking into account the importance of e-commerce and the current applications of AI techniques in this area, this research aims to adequate the design of a multi-agent system for the provisioning of e-services in u-commerce environments. This proposal is centred on the methods of evaluation in a u-e-commerce environment. Design/methodology/approach: The multi-agent systems (MAS) approach is based on an MAS model developed for AmI that has been redesigned to support u-commerce. The use of a recommendation system, previously developed by the research group, is suggested for this MAS. The methodological proposal centres on the evaluation of this type of system. Findings: The evaluation of this type of system is the principal problem of current research. Therefore, this is the main contribution of the paper. Research limitations/implications: The different evaluation methods that are proposed, whether qualitative or quantitative, offer the possibility of measuring the added value that the context can give to the use of e-services in different domains of application. Qualitative evaluation should consider the customer as a central piece in the system. In addition, quantitative methods should objectively evaluate the contribution of context to the application. Practical implications: At present, there is no single method for evaluating the benefits of different u-commerce systems, so a new method needs to be found based on these techniques. Originality/value: The research proposes an MAS designed for u-commerce domains, analyzes the capacity of trust management techniques in this environment, and proposes several evaluation methods to show the benefits of context information in the use of e-services. Several real developments are described to show the different applications of MAS in u-commerce and how evaluation is carried out.This work has been partially supported by Projects CICYT TIN2008-06742-C02-02/TSI, CICYT TEC2008-06732-C02-02/TEC, SINPROB, CAM CONTEXT and DPS2008-07029-C02-02.Publicad

Stress-strain response and microstructural evolution of a FeMnCAl TWIP steel during tension-compression tests

© 2016. The stress-strain response of a Fe-17.5Mn-0.7C-2Al TWIP steel during cyclic loading has been investigated by means of tension-compression tests within the strain limits of ±2%, ±5% and ±10%. In addition, the microstructural evolution during the ±5% cyclic test has also been studied. The difference between the forward and reverse stress for each pre-strain has been analyzed at 0.2% offset strain and at the strains in which forward and reverse curves were parallel in order to study the Bauschinger effect (BE) and permanent softening, respectively. The evolution of the BE with pre-strain for this steel is similar to other FeMnC TWIP steels, that is, increasing values of BE are obtained as the pre-strain increases. However, its absolute values are half those reported in the literature on other FeMnC steels. This diminution of the BE is related to the lower activity of mechanical twinning in FeMnCAl TWIP steels at the pre-strains herein investigated, which promotes less polarized stresses in the matrix due to the lower dislocation storage capacity.Regarding permanent softening, the evolution is similar to that of the BE and the same analysis can be applied. During reverse compression, a slight increase of twin thickness and twin spacing with respect to the first tensile stage took place. This fact might be linked to the lower flow stress observed in the permanent softening period during reverse straining.Peer ReviewedPostprint (author's final draft