Beatriz Sainz | Universidad de Valladolid (original) (raw)
Papers by Beatriz Sainz
IEEE Access, 2021
At present, with the growing number of Web 2.0 platforms such as Instagram, Facebook, and Twitter... more At present, with the growing number of Web 2.0 platforms such as Instagram, Facebook, and Twitter, users honestly communicate their opinions and ideas about events, services, and products. Owing to this rise in the number of social platforms and their extensive use by people, enormous amounts of data are produced hourly. However, sentiment analysis or opinion mining is considered as a useful tool that aims to extract the emotion and attitude from the user-posted data on social media platforms by using different computational methods to linguistic terms and various Natural Language Processing (NLP). Therefore, enhancing text sentiment classification accuracy has become feasible, and an interesting research area for many community researchers. In this study, a new Fuzzy Deep Learning Classifier (FDLC) is suggested for improving the performance of data-sentiment classification. Our proposed FDLC integrates Convolutional Neural Network (CNN) to build an effective automatic process for e...
Global Approaches and Issues, 2010
The objective of chapter 14 is the study of the art of e-commerce, analyzing the different existi... more The objective of chapter 14 is the study of the art of e-commerce, analyzing the different existing commercial models in the market such as Business to Business (B2B), Business to Consumers (B2C), Business to Business to Consumers (B2B2C), Consumers to Business (C2B), Business to Employee (B2E), Administration to Business/Consumers/Administration (A2/B/C/A), Consumers to Consumers (C2C), Peer to Peer (P2P), Mobile to Business (M2B) and Small Office Home Office (SOHO) amongst others, the level of implementation in the work place as well as the level of acceptation in society and the regulatory framework for the development of the activity. After this study, the central theme will be one of carrying out a study of the pros and cons that e-commerce brings to the client and to the company. Moreover, a study is carried out of the implementation of e-commerce in a Small and Medium Enterprise (SME), analyzing the technological possibilities and the market of the company which is the object...
Electronic Health Record (EHR) refers to an individual patient’s medical record in digital format... more Electronic Health Record (EHR) refers to an individual patient’s medical record in digital format. Several models of standardization for EHR exchange have been proposed and multiple organizations formed to help evaluate and implement them. In this chapter, we present a web-based application (TeleOftalWeb) to store and exchange EHR and fundus photographs. We apply Health Level 7/Clinical Document Architecture (HL7/CDA) Release
Towards Mobile Edge Computing: Taxonomy, Challenges, Applications and Future Realms, 2020
The realm of cloud computing has revolutionized access to cloud resources and their utilization a... more The realm of cloud computing has revolutionized access to cloud resources and their utilization and applications over the Internet. However, deploying cloud computing for delay critical applications and reducing the delay in access to the resources are challenging. The Mobile Edge Computing (MEC) paradigm is one of the effective solutions, which brings the cloud computing services to the proximity of the edge network and leverages the available resources. This paper presents a survey of the latest and state-of-the-art algorithms, techniques, and concepts of MEC. The proposed work is unique in that the most novel algorithms are considered, which are not considered by the existing surveys. Moreover, the chosen novel literature of the existing researchers is classified in terms of performance metrics by describing the realms of promising performance and the regions where the margin of improvement exists for future investigation for the future researchers. This also eases the choice of a particular algorithm for a particular application. As compared to the existing surveys, the bibliometric overview is provided, which is further helpful for the researchers, engineers, and scientists for a thorough insight, application selection, and future consideration for improvement. In addition, applications related to the MEC platform are presented. Open research challenges, future directions, and lessons learned in area of the MEC are provided for further future investigation. INDEX TERMS Mobile edge computing, cloud servers, networks, edge device, smart cities, latency, energy. NOMENCLATURE APs Access points BS Base station CCBM Computational capability based matching DRL Deep reinforcement learning D2D Device-to-device E2E End-to-end ECIPs Edge computing infrastructure providers IoT Internet-of-Things IPDC Interior penalty with D.C IA Iterative algorithms JCOS Joint cache offloading solution KKT Karush-Kuhn-Tucker
IEEE ACCESS, 2020
In underwater wireless sensor networks (UWSNs), protocols with efficient energy and reliable comm... more In underwater wireless sensor networks (UWSNs), protocols with efficient energy and reliable communication are challenging, due to the unpredictable aqueous environment. The sensor nodes deployed in the specific region can not last for a long time communicating with each other because of limited energy. Also, the low speed of the acoustic waves and the small available bandwidth produce high latency as well as high transmission loss, which affects the network reliability. To address such problems, several protocols exist in literature. However, these protocols lose energy efficiency and reliability, as they calculate the geographical coordinates of the node or they do not avoid unfavorable channel conditions. To tackle these challenges, this article presents the two novel routing protocol for UWSNs. The first one energy path and channel aware (EPACA) protocol transmits data from a bottom of the water to the surface sink by taking node's residual energy (R e), packet history (H p), distance (d) and bit error rate (BER). In EPACA protocol, a source node computes a function value for every neighbor node. The most prior node in terms of calculated function is considered as the target destination. However, the EPACA protocol may not always guarantee packet reliability, as it delivers packets over a single path. To maintain the packet reliability in the network, the cooperative-energy path and channel aware (CoEPACA) routing scheme is added which uses relay nodes in packet advancement. In the CoEPACA protocol, the destination node receives various copies from the source and relay(s). The received data at the destination from multiple routes make the network more reliable due to avoiding the erroneous data. The MATLAB simulations results validated the performance of the proposed algorithms. The EPACA protocol consumed 29.01% and the CoEPACA protocol 19.04% less energy than the counterpart scheme. In addition, the overall 12.40% improvement is achieved in the packet's reliability. Also, the EPACA protocol outperforms for packets' latency and network lifetime.
… (CISTI), 2010
... Apache Tomcat 5.5.9 es el servidor de aplicaciones elegido. La aplicaciόn se ha realizado emp... more ... Apache Tomcat 5.5.9 es el servidor de aplicaciones elegido. La aplicaciόn se ha realizado empleando las tecnologías Java Servlet y Java Server Pages (JSP). ... Como servidor de aplicaciones se usa Apache Tomcat 5.5.9. Las redes de área local LAN 1 y 2 son Ethernet (802.3). ...
Colecao Propg Digital, 2009
The term eGovernment encompasses a broad set of applications designed to resolve bureaucratic iss... more The term eGovernment encompasses a broad set of applications designed to resolve bureaucratic issues, that is, public services or public sectorrelated aspects. This document defines some terms related to eGovernment and its impact on the Civil Service. We will distinguish between applications according to the agents involved and on the services they provide. These applications will also be discussed more profusely in relation to worldwide implementation, presenting the different measurements of the available level of eGovernment as a sample of the public sector's ability to provide technology services and mobility. Finally, we will highlight collateral benefits of eGovernment when combined with other emerging implementations and needs.
ABSTRACT Description: By combining electronic communication and information technology with healt... more ABSTRACT Description: By combining electronic communication and information technology with healthcare practices, e-health promises access to health information, diagnosis, treatment, and care to patients who may "enter" and interact with the system in new ways. Telemedicine and E-Health Services, Policies, and Applications: Advancements and Developments offers a comprehensive and integrated approach to telemedicine by collecting e-health experiences and applications from around the world and by exploring developments and trends in medical informatics. Researchers and professionals in health management, medicine, nursing, and medical informatics will find discussions of critical issues in the emerging field of e-health. The book also introduces innovative concepts and services at the leading edge of healthcare and information technology, which may enable a safer, higher quality, more equitable and sustainable health system.
Lecture Notes in Computer Science, 2011
... Carlos de Castro Lozano1, Enrique García Salcines1, Beatriz Sainz de Abajo2, F. Javier Burón ... more ... Carlos de Castro Lozano1, Enrique García Salcines1, Beatriz Sainz de Abajo2, F. Javier Burón Fernández1, José Miguel Ramírez1, José ... 1 EATCO Research Group, University of Cordoba, Edificio Leonardo da Vinci, Campus de Rabanales, 14071 Córdoba, Spain {ma1caloc ...
Colecao Propg Digital, 2009
The wide adoption of small and powerful mobile computers, such as smart phones and tablets, has r... more The wide adoption of small and powerful mobile computers, such as smart phones and tablets, has raised the opportunity to employ them in multi-user and multi-device iTV scenarios. In particular, the standardization of HTML5 and the increase of cloud services have made the web browser a suitable tool for managing multimedia content and the user interface, in order to provide seamless session mobility among devices, such as smart phones, tablets and TV screens. In this paper we present architecture and a prototype that let people transfer instantaneously the video they are watching between web devices. This architecture is based on two pillars: Websockets, a new HTML5 feature, and Internet TV (Youtube, Yahoo Video, Vimeo, etc.). We demonstrate the flexibility of the proposed architecture in a prototype that employs the Youtube API and that facilitates seamless session mobility in a ubiquitous TV scenario. This flexible experimental set-up let us test several hypotheses, such as user a...
El uso de las tecnologias de la información y las comunicaciones (TIC) ha supuesto un cambio soci... more El uso de las tecnologias de la información y las comunicaciones (TIC) ha supuesto un cambio social del que la universidad no escapa. La aplicación de todas estas tecnologías en el ámbito docente se ha convertido en práctica habitual ante la necesidad de la reforma estructural que exige el nuevo modelo de Bolonia. A la vez que la brecha digital se reduce, la navegación es más accesible a las personas peritiéndonos estar conectados con otros lugares del mundo de manera virtual. Aprovecharemos esta globalización para facilitar el acceso a los contenidos a nuestros estudiantes de intercambio. Pese a la enorme importancia que están adquiriendo las redes sociales en nuestros días, no se ha explotado en el campo de la educación, y es que pese a la existencia de redes temáticas de este campo, no ha adquirido la importancia de red puramente social. Las tecnologias emergentes en el ámbito de la educación han causado un cambio en el actual sistema educativo que promete ventajas mayores que el...
Este artículo defiende las bondades de los videojuegos educativos que, a diferencia de los comerc... more Este artículo defiende las bondades de los videojuegos educativos que, a diferencia de los comerciales, se orientan hacia el aprendizaje de conceptos teóricos o prácticos mediante el uso de técnicas pedagógicas. Estos videojuegos permiten al alumno experimentar sus teorías y reflexionar sobre sus estrategias mejorando la capacidad de aprendizaje. De la misma manera ayudan a potenciar numerosas actividades pedagógicas como las habilidades cognitivas, espaciales y motoras, a la vez que son una buena forma de enseñar conocimientos tanto para su comprensión como para su memorización. Además de todas las ventajas haremos hincapié en los inconvenientes que algunos llevan aparejados. El juego debe interesar y divertir al usuario, y por tanto debemos prestar especial atención a la calidad del mismo de forma que su estética no diste demasiado de los videojuegos comerciales. Será necesaria una colaboración multidisciplinar entre diseñadores, educadores y psicólogos a la hora de diseñar las he...
Lecture Notes in Computer Science, 2011
Recently published social protection and dependence reports reaffirm that the elderly, the disabl... more Recently published social protection and dependence reports reaffirm that the elderly, the disabled, or those in situations of dependency objectively benefit from continuing to live at home with the assistance from direct family. Currently in Spain -amongst the elderly, or people in a situation of dependency -8 out of every 10 people stay at home. The end result is that the direct family relations have the responsibility of performing 76% of the tasks during the daily routine where aid is needed 1 . Associations for people with disabilities, however, not only report a lack of adequate aid services, but a lack of direct-family assistance as well. It is necessary, therefore, for an "evolution" or overhaul amongst the social and health service provision systems. The elderly, people in situations of dependency, or people with disabilities should be provided with enough resources and aids to allow them to decide their own future 2 .
IEEE Access, 2021
At present, with the growing number of Web 2.0 platforms such as Instagram, Facebook, and Twitter... more At present, with the growing number of Web 2.0 platforms such as Instagram, Facebook, and Twitter, users honestly communicate their opinions and ideas about events, services, and products. Owing to this rise in the number of social platforms and their extensive use by people, enormous amounts of data are produced hourly. However, sentiment analysis or opinion mining is considered as a useful tool that aims to extract the emotion and attitude from the user-posted data on social media platforms by using different computational methods to linguistic terms and various Natural Language Processing (NLP). Therefore, enhancing text sentiment classification accuracy has become feasible, and an interesting research area for many community researchers. In this study, a new Fuzzy Deep Learning Classifier (FDLC) is suggested for improving the performance of data-sentiment classification. Our proposed FDLC integrates Convolutional Neural Network (CNN) to build an effective automatic process for e...
Global Approaches and Issues, 2010
The objective of chapter 14 is the study of the art of e-commerce, analyzing the different existi... more The objective of chapter 14 is the study of the art of e-commerce, analyzing the different existing commercial models in the market such as Business to Business (B2B), Business to Consumers (B2C), Business to Business to Consumers (B2B2C), Consumers to Business (C2B), Business to Employee (B2E), Administration to Business/Consumers/Administration (A2/B/C/A), Consumers to Consumers (C2C), Peer to Peer (P2P), Mobile to Business (M2B) and Small Office Home Office (SOHO) amongst others, the level of implementation in the work place as well as the level of acceptation in society and the regulatory framework for the development of the activity. After this study, the central theme will be one of carrying out a study of the pros and cons that e-commerce brings to the client and to the company. Moreover, a study is carried out of the implementation of e-commerce in a Small and Medium Enterprise (SME), analyzing the technological possibilities and the market of the company which is the object...
Electronic Health Record (EHR) refers to an individual patient’s medical record in digital format... more Electronic Health Record (EHR) refers to an individual patient’s medical record in digital format. Several models of standardization for EHR exchange have been proposed and multiple organizations formed to help evaluate and implement them. In this chapter, we present a web-based application (TeleOftalWeb) to store and exchange EHR and fundus photographs. We apply Health Level 7/Clinical Document Architecture (HL7/CDA) Release
Towards Mobile Edge Computing: Taxonomy, Challenges, Applications and Future Realms, 2020
The realm of cloud computing has revolutionized access to cloud resources and their utilization a... more The realm of cloud computing has revolutionized access to cloud resources and their utilization and applications over the Internet. However, deploying cloud computing for delay critical applications and reducing the delay in access to the resources are challenging. The Mobile Edge Computing (MEC) paradigm is one of the effective solutions, which brings the cloud computing services to the proximity of the edge network and leverages the available resources. This paper presents a survey of the latest and state-of-the-art algorithms, techniques, and concepts of MEC. The proposed work is unique in that the most novel algorithms are considered, which are not considered by the existing surveys. Moreover, the chosen novel literature of the existing researchers is classified in terms of performance metrics by describing the realms of promising performance and the regions where the margin of improvement exists for future investigation for the future researchers. This also eases the choice of a particular algorithm for a particular application. As compared to the existing surveys, the bibliometric overview is provided, which is further helpful for the researchers, engineers, and scientists for a thorough insight, application selection, and future consideration for improvement. In addition, applications related to the MEC platform are presented. Open research challenges, future directions, and lessons learned in area of the MEC are provided for further future investigation. INDEX TERMS Mobile edge computing, cloud servers, networks, edge device, smart cities, latency, energy. NOMENCLATURE APs Access points BS Base station CCBM Computational capability based matching DRL Deep reinforcement learning D2D Device-to-device E2E End-to-end ECIPs Edge computing infrastructure providers IoT Internet-of-Things IPDC Interior penalty with D.C IA Iterative algorithms JCOS Joint cache offloading solution KKT Karush-Kuhn-Tucker
IEEE ACCESS, 2020
In underwater wireless sensor networks (UWSNs), protocols with efficient energy and reliable comm... more In underwater wireless sensor networks (UWSNs), protocols with efficient energy and reliable communication are challenging, due to the unpredictable aqueous environment. The sensor nodes deployed in the specific region can not last for a long time communicating with each other because of limited energy. Also, the low speed of the acoustic waves and the small available bandwidth produce high latency as well as high transmission loss, which affects the network reliability. To address such problems, several protocols exist in literature. However, these protocols lose energy efficiency and reliability, as they calculate the geographical coordinates of the node or they do not avoid unfavorable channel conditions. To tackle these challenges, this article presents the two novel routing protocol for UWSNs. The first one energy path and channel aware (EPACA) protocol transmits data from a bottom of the water to the surface sink by taking node's residual energy (R e), packet history (H p), distance (d) and bit error rate (BER). In EPACA protocol, a source node computes a function value for every neighbor node. The most prior node in terms of calculated function is considered as the target destination. However, the EPACA protocol may not always guarantee packet reliability, as it delivers packets over a single path. To maintain the packet reliability in the network, the cooperative-energy path and channel aware (CoEPACA) routing scheme is added which uses relay nodes in packet advancement. In the CoEPACA protocol, the destination node receives various copies from the source and relay(s). The received data at the destination from multiple routes make the network more reliable due to avoiding the erroneous data. The MATLAB simulations results validated the performance of the proposed algorithms. The EPACA protocol consumed 29.01% and the CoEPACA protocol 19.04% less energy than the counterpart scheme. In addition, the overall 12.40% improvement is achieved in the packet's reliability. Also, the EPACA protocol outperforms for packets' latency and network lifetime.
… (CISTI), 2010
... Apache Tomcat 5.5.9 es el servidor de aplicaciones elegido. La aplicaciόn se ha realizado emp... more ... Apache Tomcat 5.5.9 es el servidor de aplicaciones elegido. La aplicaciόn se ha realizado empleando las tecnologías Java Servlet y Java Server Pages (JSP). ... Como servidor de aplicaciones se usa Apache Tomcat 5.5.9. Las redes de área local LAN 1 y 2 son Ethernet (802.3). ...
Colecao Propg Digital, 2009
The term eGovernment encompasses a broad set of applications designed to resolve bureaucratic iss... more The term eGovernment encompasses a broad set of applications designed to resolve bureaucratic issues, that is, public services or public sectorrelated aspects. This document defines some terms related to eGovernment and its impact on the Civil Service. We will distinguish between applications according to the agents involved and on the services they provide. These applications will also be discussed more profusely in relation to worldwide implementation, presenting the different measurements of the available level of eGovernment as a sample of the public sector's ability to provide technology services and mobility. Finally, we will highlight collateral benefits of eGovernment when combined with other emerging implementations and needs.
ABSTRACT Description: By combining electronic communication and information technology with healt... more ABSTRACT Description: By combining electronic communication and information technology with healthcare practices, e-health promises access to health information, diagnosis, treatment, and care to patients who may "enter" and interact with the system in new ways. Telemedicine and E-Health Services, Policies, and Applications: Advancements and Developments offers a comprehensive and integrated approach to telemedicine by collecting e-health experiences and applications from around the world and by exploring developments and trends in medical informatics. Researchers and professionals in health management, medicine, nursing, and medical informatics will find discussions of critical issues in the emerging field of e-health. The book also introduces innovative concepts and services at the leading edge of healthcare and information technology, which may enable a safer, higher quality, more equitable and sustainable health system.
Lecture Notes in Computer Science, 2011
... Carlos de Castro Lozano1, Enrique García Salcines1, Beatriz Sainz de Abajo2, F. Javier Burón ... more ... Carlos de Castro Lozano1, Enrique García Salcines1, Beatriz Sainz de Abajo2, F. Javier Burón Fernández1, José Miguel Ramírez1, José ... 1 EATCO Research Group, University of Cordoba, Edificio Leonardo da Vinci, Campus de Rabanales, 14071 Córdoba, Spain {ma1caloc ...
Colecao Propg Digital, 2009
The wide adoption of small and powerful mobile computers, such as smart phones and tablets, has r... more The wide adoption of small and powerful mobile computers, such as smart phones and tablets, has raised the opportunity to employ them in multi-user and multi-device iTV scenarios. In particular, the standardization of HTML5 and the increase of cloud services have made the web browser a suitable tool for managing multimedia content and the user interface, in order to provide seamless session mobility among devices, such as smart phones, tablets and TV screens. In this paper we present architecture and a prototype that let people transfer instantaneously the video they are watching between web devices. This architecture is based on two pillars: Websockets, a new HTML5 feature, and Internet TV (Youtube, Yahoo Video, Vimeo, etc.). We demonstrate the flexibility of the proposed architecture in a prototype that employs the Youtube API and that facilitates seamless session mobility in a ubiquitous TV scenario. This flexible experimental set-up let us test several hypotheses, such as user a...
El uso de las tecnologias de la información y las comunicaciones (TIC) ha supuesto un cambio soci... more El uso de las tecnologias de la información y las comunicaciones (TIC) ha supuesto un cambio social del que la universidad no escapa. La aplicación de todas estas tecnologías en el ámbito docente se ha convertido en práctica habitual ante la necesidad de la reforma estructural que exige el nuevo modelo de Bolonia. A la vez que la brecha digital se reduce, la navegación es más accesible a las personas peritiéndonos estar conectados con otros lugares del mundo de manera virtual. Aprovecharemos esta globalización para facilitar el acceso a los contenidos a nuestros estudiantes de intercambio. Pese a la enorme importancia que están adquiriendo las redes sociales en nuestros días, no se ha explotado en el campo de la educación, y es que pese a la existencia de redes temáticas de este campo, no ha adquirido la importancia de red puramente social. Las tecnologias emergentes en el ámbito de la educación han causado un cambio en el actual sistema educativo que promete ventajas mayores que el...
Este artículo defiende las bondades de los videojuegos educativos que, a diferencia de los comerc... more Este artículo defiende las bondades de los videojuegos educativos que, a diferencia de los comerciales, se orientan hacia el aprendizaje de conceptos teóricos o prácticos mediante el uso de técnicas pedagógicas. Estos videojuegos permiten al alumno experimentar sus teorías y reflexionar sobre sus estrategias mejorando la capacidad de aprendizaje. De la misma manera ayudan a potenciar numerosas actividades pedagógicas como las habilidades cognitivas, espaciales y motoras, a la vez que son una buena forma de enseñar conocimientos tanto para su comprensión como para su memorización. Además de todas las ventajas haremos hincapié en los inconvenientes que algunos llevan aparejados. El juego debe interesar y divertir al usuario, y por tanto debemos prestar especial atención a la calidad del mismo de forma que su estética no diste demasiado de los videojuegos comerciales. Será necesaria una colaboración multidisciplinar entre diseñadores, educadores y psicólogos a la hora de diseñar las he...
Lecture Notes in Computer Science, 2011
Recently published social protection and dependence reports reaffirm that the elderly, the disabl... more Recently published social protection and dependence reports reaffirm that the elderly, the disabled, or those in situations of dependency objectively benefit from continuing to live at home with the assistance from direct family. Currently in Spain -amongst the elderly, or people in a situation of dependency -8 out of every 10 people stay at home. The end result is that the direct family relations have the responsibility of performing 76% of the tasks during the daily routine where aid is needed 1 . Associations for people with disabilities, however, not only report a lack of adequate aid services, but a lack of direct-family assistance as well. It is necessary, therefore, for an "evolution" or overhaul amongst the social and health service provision systems. The elderly, people in situations of dependency, or people with disabilities should be provided with enough resources and aids to allow them to decide their own future 2 .