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[EN] Mobile crowdsensing (MCS) is a technique where people with computing and sensing devices such as smartphones collectively share data that are of potential interest to the rest of society. MCS includes two different trends (i) mobile sensing, which shares raw data generated from the sensors that are embedded in mobile devices, and (ii) social sensing, which uses the information shared by people in online social networks (OSNs). In this study, the authors present the timeline evolution of the COVID¿19 pandemic in Spain, and summarise the MCS research efforts that are being undertaken by the Spanish community to address COVID¿19 outbreak. Indeed, the COVID¿19 pandemic is putting today's society at risk; lockdown and social distancing measures proposed by governments are dramatically affecting economies. In this regard, MCS tools can become a powerful solution to provide smart quarantine strategies in periods of a steep decrease of infections, or new outbreaks. ; This work was partially supported by the Fundación Séneca del Centro de Coordinación de la Investigación de la Región de Murcia under Project 20813/PI/18, and by the Spanish Ministry of Science, Innovation and Universities under grants RTI2018-096384-B-I00 and RTC-2017-6389-5. ; Cecilia-Canales, JM.; Cano, J.; Hernández-Orallo, E.; Tavares De Araujo Cesariny Calafate, CM.; Manzoni, P. (2020). Mobile crowdsensing approaches to address the COVID-19 pandemic in Spain. IET Smart Cities. 2(2):1-6. https://doi.org/10.1049/iet-smc.2020.0037 ; S ; 1 ; 6 ; 2 ; 2 ; World Health Organization:'Novel coronavirus (2019‐ncov): Situation report 91' [accessed 30‐April‐2020] ; Instituto de Salud.Carlos.III:'Situación de covid‐19 en españa' [accessed 30‐April‐2020].https://covid19.isciii.es/ ; LiR.RiversC.TanQ.et al.: 'The demand for inpatient and ICU beds for COVID‐19 in the US: lessons from Chinese cities' medRxiv 2020 pp.1–12 doi:10.1101/2020.03.09.20033241 ; World Health Organization:'Critical preparedness readiness and response actions for COVID‐19: interim guidance ...

The final publication is available at Springer via http://dx.doi.org/ 10.1007/978-3-319-08311-7_11 ; To analyse the timeliness behaviour of a real-time system is one its key aspects. A big effort has been performed by the real-time community to develop accurate and more general schedulability analysis that can ensure the correct execution of the system. However, few works have analysed the side effects introduced by the scheduler and undesired execution of Interrupt Service Routines. Previous works addressed the interrupt interference by proposing an Integrated Interrupt Model that avoids unpredictable disturbance from external interrupts. Even so, the scheduling overhead due to the unnecessary activation of low priority tasks remains still unaddressed in this model. This work proposes a new Virtual implementation of an Integrated Interrupt Event-Driven Scheduler that copes with this pending issue. It also analyses the behaviour of the commonly used dual queue scheme under this kind of schedulers and proposes a more appropriated data structure to avoid unnecessary overheads. ; This work has been partially supported by the Spanish Government's projectsC OBAMI (DPI2011-28507-C02-02) and Hi-PartES (TIN2011-28567-C03-01-02-03) and the European Commission's MultiPARTES project (FP7-ICT-2011.3.4, Contract 287702). ; Sáez Barona, S.; Crespo, A. (2014). Integrated Schedulers for a Predictable Interrupt Management on Real-Time Kernels. En Reliable Software Technologies – Ada-Europe 2014. Springer. 134-148. https://doi.org/10.1007/978-3-319-08311-7_11 ; S ; 134 ; 148 ; Audsley, N., Burns, A., David, R., Tindell, K., Wellings, A.: Fixed priority pre-emptive scheduling: An historical perspective. Real-Time Systems 8(2/3), 173–189 (1995) ; POSIX.13: IEEE Std. 1003.13-1998. Information Technology-Standardized Application Environment Profile-POSIX Realtime Application Support (AEP). The Institute of Electrical and Electronics Engineers (1998) ; Katcher, D., Arakawa, H., Strosnider, J.: Engineering and analysis of fixed ...

The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-00551-5_24 ; This paper presents the work in progress of a mobile-based distributed system which aims to minimize the social impact of abandoned or lost animals. System is based on the use of smart mobile devices to provide message warnings of animals localized. Messages are stored in a database to be processed. In order to enter data such as photography, audio and artificial images, system uses different mobile device interfaces. Data processing consists mainly in matching localized animals with lost animals, assigning abandoned animals at shelters and generating notifications for animal shelters or authorities. Currently, the system is in the development phase. The technical challenges in which we are working are to optimize data and metadata matching, and the management of message warning. ; The study described in this paper is a part of the coordinated project COBAMI: Mission-based Hierarchical Control. Education and Science Department, Spanish Government. CICYT: MICINN: DP1201 1-28507-C02-01/02. ; Garrote-Hildebrand, D.; Poza-Lujan, J.; Posadas-Yagüe, J.; Simó Ten, JE. (2013). Mobile-Based Distributed System for Managing Abandoned or Lost Pets. En Distributed Computing and Artificial Intelligence. Springer. 197-200. https://doi.org/10.1007/978-3-319-00551-5_24 ; S ; 197 ; 200 ; Lord, L.K., Wittum, T.E., Ferketich, A.K., Funk, J.A., Rajala-Schultz, P.J.: Search methods that people use to find owners of lost pets. Journal of the Veterinary Association 230(12), 1835–1840 (2007) ; Weiss, E., Slater, M., Lord, L.: Frequency of Lost Dogs and Cats in the United States and the Methods Used to Locate Them. Animals 2, 301–315 (2012) ; Laplante, P.A.: Exciting Real-Time Location Applications. IT Professional 13(2), 4–5 (2011), doi:10.1109/MITP.2011.22 ; IFPUG (International Function Point Users Group). The IFPUG Guide to IT and Software Measurement. Auerbach Publications (2012) ; Yun, L., Peiji, S.: Applying RFID to the pet's ...

The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-00551-5_32 ; This paper presents a proposal to extend the event management subsystem of the Distribution Data Service standard (DDS). The proposal allows user to optimize the use of DDS in networked control systems (NCS). DDS offers a simple event management system based on message filtering. The aim of the proposal is to improve the event management with three main elements: Events, Conditions and Actions. Actions are the new element proposed. Actions perform basic operations in the middleware, discharging the process load of control elements. The proposal is fully compatible with the standard and can be easily added to an existing system. Proposal has been tested in a distributed mobile robot navigation system with interesting results. ; The study described in this paper is a part of the coordinated project COBAMI: Mission-based Hierarchical Control. Education and Science Department, Spanish Government. CICYT: MICINN: DP1201 1-28507-C02-01/02. ; Poza-Lujan, J.; Posadas-Yagüe, J.; Simó Ten, JE. (2013). Event Management Proposal for Distribution Data Service Standard. En Distributed Computing and Artificial Intelligence. Springer. 259-266. https://doi.org/10.1007/978-3-319-00551-5_32 ; S ; 259 ; 266 ; Sánchez, J., Guarnes, M.Á., Dormido, S.: On the Application of Different Event-Based Sampling Strategies to the Control of a Simple Industrial Process. Sensors 9, 6795–6818 (2009) ; Sandee, J.H., Heemels, W.P.M.H., van den Bosch, P.P.J.: Case Studies in Event-Driven Control. In: Bemporad, A., Bicchi, A., Buttazzo, G. (eds.) HSCC 2007. LNCS, vol. 4416, pp. 762–765. Springer, Heidelberg (2007) ; Hadim, S., Nader, M.: Middleware Challenges and Approaches for Wireless Sensor Networks. IEEE Distributed Systems Online 7(3) (2006) ; Pardo-Castellote, G.: OMG Data-Distribution Service: architectural overview. In: Proceedings of 23rd International Conference on Distributed Computing Systems Workshops, Providence, USA, vol. 19-22, pp. ...

The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-642-19934-9_10 ; Messaging systems are widely used in distributed systems to hide the details of the communications mechanism to the multi agents systems. However, the Quality of Service is treated in different way depending on the messaging system used. This article presents a review and further analysis of the quality of service treatment in the mainly messaging systems used in distributed multi agent systems. The review covers the issues related to the purpose of the functions provided and the scope of the quality of service offered by every messaging system. We propose ontology for classifying and decide which parameters are relevant to the user. The results of the analysis and the ontology can be used to select the most suitable messaging system to distributed multi agent architecture and to establish the quality of service requirements in a distributed system. ; The study described in this article is a part of the coordinated project SIDIRELI: Distributed Systems with Limited Resources. Control Kernel and Coordination. Education and Science Department, Spanish Government and European FEDER found. CICYT: MICINN: DPI2008-06737-C02-01/02. ; Poza-Lujan, J.; Posadas-Yagüe, J.; Simó Ten, JE. (2011). A survey on quality of service support on middelware-based distributed messaging systems used in multi agent systems. En International Symposium on Distributed Computing and Artificial Intelligence. Springer. 77-84. https://doi.org/10.1007/978-3-642-19934-9_10 ; S ; 77 ; 84 ; Gaddah, A., Kunz, T.: A survey of middleware paradigms for mobile computing. Technical Report SCE-03-16. Carleton University Systems and Computing Engineering (2003) ; Foundation for Intelligent Physical Agents, http://www.fipa.org/ ; Java Message Service Specification, http://java.sun.com/products/jms/docs.html ; Common Object Request Broker Architecture, http://www.corba.org/ ; Data Distribution Service, http://portals.omg.org/dds/ ; Java Agent DEvelopment ...

La motivación tras la propuesta de este trabajo es el análisis de la seguridad en los sistemas de enjambres de robots. Este tipo de redes están compuestas por un gran conjunto de nodos de características semejantes que se comunican e interactúan entre sí para llevar a cabo tareas más complejas que no podrían desempeñar si no fuese por esta cooperación. Por su naturaleza, un factor esencial en estas redes es la comunicación entre los componentes para tomar decisiones en conjunto y actuar de forma armónica. Por ello, en la mayoría de los casos, será necesario que esta comunicación y que la red en su conjunto posea unos altos requerimientos en cuanto a seguridad para que posibles atacantes externos no sean capaces de llegar a afectar el correcto funcionamiento del sistema. Esto es de suma importancia ya que, en función de la tarea que vaya a realizar el enjambre, las consecuencias pueden llegar a ser catastróficas, como podría ser el caso de un ataque que tomase el control sobre un enjambre de robots que se dedicaba a una maniobra de carácter militar. Blockchain es una tecnología emergente y que ha ganado popularidad en los últimos años a raíz del auge de las criptomonedas. Sin embargo, sus aplicaciones trascienden la de la banca digital y puede aplicarse en una gran cantidad de escenarios. Aún así, es importante tener en cuenta las características de blockchain y de la aplicación que se quiera implementar para valorar si es más o menos adecuado su uso. Su uso aporta características de seguridad, almacenando de forma distribuida los datos en todos los nodos de la red, por lo que puede resultar interesante unir este concepto al de robótica de enjambre para asegurar este tipo de sistemas. Por todo lo explicado, los objetivos que se han llevado a cabo para este trabajo han sido, en primer lugar, un estudio del estado del arte de la robótica de enjambre y el blockchain, reflexionando sobre la situación de la seguridad de estos sistemas. Por otra parte, se ha valorado la aplicabilidad de blockchain a tareas de enjambres ...

[EN] The purpose of this paper is to propose an intelligent system to automatically monitor the firms¿ engagement in e-commerce by analyzing online data retrieved from their corporate websites. The design of the proposed system combines web content mining and scraping techniques with learning methods for Big Data. Corporate websites are scraped to extract more than 150 features related to the e-commerce adoption, such as the presence of some keywords or a private area. Then, these features are taken as input by a classification model that includes dimensionality reduction techniques. The system is evaluated with a data set consisting of 426 corporate websites of firms based in France and Spain. The system successfully classified most of the firms into those that adopted e-commerce and those that did not, reaching a classification accuracy of 90.6%. This demonstrates the feasibility of monitoring e-commerce adoption from online data. Moreover, the proposed system represents a cost-effective alternative to surveys as method for collecting e-commerce information from companies, and is capable of providing more frequent information than surveys and avoids the non-response errors. This is the first research work to design and evaluate an intelligent system to automatically detect e-commerce engagement from online data. This proposal opens up the opportunity to monitor e-commerce adoption at a large scale, with highly granular information that otherwise would require every firm to complete a survey. In addition, it makes it possible to track the evolution of this activity in real time, so that governments and institutions could make informed decisions earlier. ; This work has been partially supported by the Spanish Ministry of Economy and Competitiveness with Grant TIN2013-43913-R, and by the Spanish Ministry of Education with Grant FPU14/02386. ; Blazquez, D.; Domenech, J.; Gil, JA.; Pont Sanjuan, A. (2018). Monitoring E-commerce Adoption from Online Data. Knowledge and Information Systems. 1-19. ...

The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-642-02481-8_61 ; Quality of service policies in communications is one of the current trends in distributed systems based on middleware technology. To implement the QoS policies it is necessary to define some common parameters. The aim of the QoS policies is to optimize the user defined QoS parameters. This article describes how to obtain the common QoS parameters using message queues for the communications and control components of communication. The paper introduces the Queue-based Quality of Service Cycle concept for each middleware component. The QoS parameters are obtained directly from the queue parameters, and Quality of Service Policies controls directly the message queues to obtain the user-defined parameters values. ; The middleware architecture described in this article is a part of the coordinated project SIDIRELI: Distributed Systems with Limited Resources. Control Kernel and Coordination. Education and Science Department, Spanish Government. CICYT: MICINN: DPI2008-06737-C02-01/02. ; Poza-Lujan, J.; Posadas-Yagüe, J.; Simó Ten, JE. (2009). From the Queue to the Quality of Service Policy: A Middleware Implementation. En Distributed Computing, Artificial Intelligence, Bioinformatics, Soft Computing, and Ambient Assisted Living. Springer Verlag (Germany). 432-437. doi:10.1007/978-3-642-02481-8_61 ; S ; 432 ; 437 ; Aurrecoechea, C., Campbell, A.T., Hauw, L.: A Survey of QoS Architectures. Multimedia Systems Journal, Special Issue on QoS Architecture 6(3), 138–151 (1998) ; OMG. Data Distribution Service for Real-Time Systems, v1.1. Document formal/2005-12-04 (December 2005) ; Botts, M., Percivall, G., Reed, C., Davidson, J.: OGC®. Sensor Web Enablement: Overview And High Level Architecture, OpenGIS Consortium Inc (2006) ; Poza, J.L., Posadas, J.I., Simó, J.E.: QoS-based middleware architecture for distributed control systems. In: International Symposium on Distributed Computing and Artificial Intelligence, Salamanca (2008) ...

Tesis Univ. Granada. Departamento de Arquitectura y Tecnología de Computadores. Leída el 5 de mayo de 2009

[EN] Air pollution monitoring has recently become an issue of utmost importance in our society. Despite the fact that crowdsensing approaches could be an adequate solution for urban areas, they cannot be implemented in rural environments. Instead, deploying a fleet of UAVs could be considered an acceptable alternative. Embracing this approach, this paper proposes the use of UAVs equipped with off-the-shelf sensors to perform air pollution monitoring tasks. These UAVs are guided by our proposed Pollution-driven UAV Control (PdUC) algorithm, which is based on a chemotaxis metaheuristic and a local particle swarm optimization strategy. Together, they allow automatically performing the monitoring of a specified area using UAVs. Experimental results show that, when using PdUC, an implicit priority guides the construction of pollution maps by focusing on areas where the pollutants' concentration is higher. This way, accurate maps can be constructed in a faster manner when compared to other strategies. The PdUC scheme is compared against various standard mobility models through simulation, showing that it achieves better performance. In particular, it is able to find the most polluted areas with more accuracy and provides a higher coverage within the time bounds defined by the UAV flight time. ; This work has been partially carried out in the framework of the DIVINA Challenge Team, which is funded under the Labex MS2T program. Labex MS2T is supported by the French Government, through the program "Investments for the Future" managed by the National Agency for Research (Reference: ANR-11-IDEX-0004-02). This work was also supported by the "Programa Estatal de Investigacion, Desarrollo e Innovacion Orientada a Retos de la Sociedad, Proyecto I+D+I TEC2014-52690-R," the "Programa de Becas SENESCYT de la Republica del Ecuador," and the Research Direction of University of Cuenca. ; Alvear-Alvear, Ó.; Zema, NR.; Natalizio, E.; Tavares De Araujo Cesariny Calafate, CM. (2017). Using UAV-Based Systems to Monitor Air Pollution in ...

We present an approach for the modelling and simulating of the modem section of underwater sensor networks. The proposal is based on a specially designed modem architecture and the use of simulation tools and models that represent each of the communication elements: the water medium, physical transducers, electronics, and coding/decoding software. The algorithms can be simulated in the modelling environment; this framework does not require recoding and allows the combination of real and modelled elements. In physical terms, the modem engine provides a decoupled pipelined design of the processing path for the algorithms which allows users to run complex algorithms without requiring a highly demanding specific hardware. The proposal includes a methodology that has allowed us to significantly reduce the effort required in the process, from algorithm development to the effective deployment of the system. As a case study, this paper shows its application and results in the evaluation of a multipath and Doppler-shift correction algorithms. ; The authors gratefully acknowledge financial support from the CICYT ANDREA: Automated Inspection and Remote Performance of Marine Fish Farms (CTM2011-29691-C02-01), RIDeWAM: Research on Improvement of the Dependability of WSN based Applications by developing a hybrid monitoring platform (TIN2011-28435-C03-01), Valencian Regional Government under Research Project GV/2014/012, and Universitat Politecnica de Valencia under Research Project UPV PAID-02-12. The translation of this paper was funded by the Universitat Politecnica de Valencia, Spain. ; Sánchez Matías, AM.; Perles Ivars, A.; Yuste Pérez, P.; Capella Hernández, JV.; Serrano Martín, JJ. (2015). IUmote: A Framework for the Efficient Modelling, Evaluation, and Deployment of Algorithms and Hardware for Underwater Communications. International Journal of Distributed Sensor Networks. 2015:1-14. https://doi.org/10.1155/2015/358315 ; S ; 1 ; 14 ; 2015

The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-642-14883-5_10 ; This paper describes an agent s movement protocol. Additionally, a distributed architecture to implement such protocol is presented. The architecture allows the agents to move in accordance with their requirements. The protocol is based on division and fusion of the agents in their basic components called Logical Sensors. The movement of the agents is based on the quality of services (QoS) and quality of control (QoC) parameters that the system can provides. The protocol is used to know the impact that the movement of the agents may have on the system and obtain the equilibrium points where the impact is minimal. ; The architecture described in this article is a part of the coordinated project SIDIRELI: Distributed Systems with Limited Resources. Control Kernel and Coordination. Education and Science Department, Spanish Government. CICYT: MICINN: DPI2008-06737-C02-01/02. ; Poza-Lujan, J.; Posadas-Yagüe, J.; Simó Ten, JE. (2010). Quality of service and quality of control based protocol to distribute agents. En Distributed Computing and Artificial Intelligence: 7th International Symposium. Springer. 73-80. doi:10.1007/978-3-642-14883-5_10 ; S ; 73 ; 80 ; Posadas, J.L., Poza, J.L., Simó, J.E., Benet, G., Blanes, F.: Agent Based Distributed Architecture for Mobile Robot Control. In: Engineering Applications of Artificial Intelligence, vol. 21(6), pp. 805–823. Pergamon Press Ltd., Oxford (2008) ; Object Management Group (OMG): Data Distribution Service for Real-Time Systems, v1.1. Document formal / 2005-12-04 (2005) ; Odum, E.P.: Fundamentals of Ecology, 3rd edn. W.B. Saunders Company, Philadelphia (1971) ; Aurrecoechea, C., Campbell, A.T., Hauw, L.: A Survey of QoS Architectures. ACM/Springer Verlag Multimedia Systems Journal, Special Issue on QoS Architecture 6(3), 138–151 (1998) ; Pardo-Castellote, G.O.: Data-Distribution Service: architectural overview. In: Proceedings of 23rd International Conference on ...

The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-642-02481-8_12 ; In a Multi-Agent system, middleware is one of the components used to isolate control and communications. The use of standards in the implementation of an intelligent distributed system is always advantageous. This paper presents a middleware that provides support to a multi-agent system. Middleware is based on the standard Data Distribution Services (DDS), proposed by Object Management Group (OGM). Middleware organizes information by tree based ontology and provides a set of quality of service policies that agents can use to increase efficiency. DDS provides a set of quality of service policy. Joining quality of service policy and the ontology allows getting many advantages, among others the possibility of to conceal some details of the communications system to agents, the correct location of the agents in the distributed system, or the monitoring agents in terms of quality of service. For modeling the middleware architecture it has used UML class diagrams. As an example it has presented the implementation of a mobile robot navigation system through agents that model behaviors. ; The MAS architecture described in this article is a part of the coordinated project SIDIRELI: Distributed Systems with Limited Resources. Control Kernel and Coordination. Education and Science Department, Spanish Government. CICYT: MICINN: DPI2008-06737-C02-01/02. ; Poza-Lujan, J.; Posadas-Yagüe, J.; Simó Ten, JE. (2009). Adding an ontology to a standardized QoS-based MAS middleware. En Distributed Computing, Artificial Intelligence, Bioinformatics, Soft Computing, and Ambient Assisted Living. Springer. 83-90. doi:10.1007/978-3-642-02481-8_12 ; S ; 83 ; 90 ; Coulouris, G., Dollimore, J., Kindberg, T.: Distributed systems, concepts and design, 3rd edn. Addison Wesley, Reading (2001) ; Hapner, M., Sharma, R., Fialli, J., Stout, K.: JMS specification, vol. 1.1. Sun Microsystems Inc., Santa Clara (2002) ; Lewis, R.: Advanced Messaging ...

Since radix-10 arithmetic has been gaining renewed importance over the last few years, high performance decimal systems and techniques are highly demanded. In this paper, a modification of the CORDIC method for decimal arithmetic is proposed so as to improve calculations. The algorithm works with BCD operands and no conversion to binary is needed. A significant reduction in the number of iterations in comparison to the original decimal CORDIC method is achieved. The experiments showing the advantages of the new method are described. Also, the results with regard to delay obtained by means of an FPGA implementation of the method are shown. ; This work has been supported by the Valencia Region Government (Spain) under Grant No. GV/2007/173.

©2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. ; Obtaining detailed pollution maps for urban environments is an effort that is gathering much interest by allowing to better regulate traffic and protect citizens from hazardous conditions. However, the scarcity of pollution sensors prevents obtaining the desired degree of detail, requiring alternative solutions to be deployed. In this paper we explore the concept of mobile pollution sensing by studying the feasibility of equipping buses with ozone measurement hardware to estimate ozone patterns for the city of Compiègne. Overall, we achieve accurate estimations, with error values typically ranging from 2% to 10%. Compared to solutions based on deploying static sensors on the different bus stops available, we find that the proposed mobile sensing approach is able to provide a degree of accuracy comparable to deploying tens of static sensors, substantially reducing costs and management. ; This work was carried out and funded in the framework of the Labex MSZT. It was supported by the French Government, through the program "Investments for the future" managed by the National Agency for Research (Reference ANR-11-IDEX-0004-02). This work was partially funded by the Celtic Plus CoMoSeF project "Cooperative mobility for the services of the future". The authors thank the Agglomération de la Région de Compiégne (ARC). ; Tavares De Araujo Cesariny Calafate, CM.; Ducourthial, B. (2015). On the Use of Mobile Sensors for Estimating City-Wide Pollution Levels. IEEE. doi:10.1109/IWCMC.2015.7289093 ; S