5,152 research outputs found

    Serverless Strategies and Tools in the Cloud Computing Continuum

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    Tesis por compendio[ES] En los últimos años, la popularidad de la computación en nube ha permitido a los usuarios acceder a recursos de cómputo, red y almacenamiento sin precedentes bajo un modelo de pago por uso. Esta popularidad ha propiciado la aparición de nuevos servicios para resolver determinados problemas informáticos a gran escala y simplificar el desarrollo y el despliegue de aplicaciones. Entre los servicios más destacados en los últimos años se encuentran las plataformas FaaS (Función como Servicio), cuyo principal atractivo es la facilidad de despliegue de pequeños fragmentos de código en determinados lenguajes de programación para realizar tareas específicas en respuesta a eventos. Estas funciones son ejecutadas en los servidores del proveedor Cloud sin que los usuarios se preocupen de su mantenimiento ni de la gestión de su elasticidad, manteniendo siempre un modelo de pago por uso de grano fino. Las plataformas FaaS pertenecen al paradigma informático conocido como Serverless, cuyo propósito es abstraer la gestión de servidores por parte de los usuarios, permitiéndoles centrar sus esfuerzos únicamente en el desarrollo de aplicaciones. El problema del modelo FaaS es que está enfocado principalmente en microservicios y tiende a tener limitaciones en el tiempo de ejecución y en las capacidades de computación (por ejemplo, carece de soporte para hardware de aceleración como GPUs). Sin embargo, se ha demostrado que la capacidad de autoaprovisionamiento y el alto grado de paralelismo de estos servicios pueden ser muy adecuados para una mayor variedad de aplicaciones. Además, su inherente ejecución dirigida por eventos hace que las funciones sean perfectamente adecuadas para ser definidas como pasos en flujos de trabajo de procesamiento de archivos (por ejemplo, flujos de trabajo de computación científica). Por otra parte, el auge de los dispositivos inteligentes e integrados (IoT), las innovaciones en las redes de comunicación y la necesidad de reducir la latencia en casos de uso complejos han dado lugar al concepto de Edge computing, o computación en el borde. El Edge computing consiste en el procesamiento en dispositivos cercanos a las fuentes de datos para mejorar los tiempos de respuesta. La combinación de este paradigma con la computación en nube, formando arquitecturas con dispositivos a distintos niveles en función de su proximidad a la fuente y su capacidad de cómputo, se ha acuñado como continuo de la computación en la nube (o continuo computacional). Esta tesis doctoral pretende, por lo tanto, aplicar diferentes estrategias Serverless para permitir el despliegue de aplicaciones generalistas, empaquetadas en contenedores de software, a través de los diferentes niveles del continuo computacional. Para ello, se han desarrollado múltiples herramientas con el fin de: i) adaptar servicios FaaS de proveedores Cloud públicos; ii) integrar diferentes componentes software para definir una plataforma Serverless en infraestructuras privadas y en el borde; iii) aprovechar dispositivos de aceleración en plataformas Serverless; y iv) facilitar el despliegue de aplicaciones y flujos de trabajo a través de interfaces de usuario. Además, se han creado y adaptado varios casos de uso para evaluar los desarrollos conseguidos.[CA] En els últims anys, la popularitat de la computació al núvol ha permès als usuaris accedir a recursos de còmput, xarxa i emmagatzematge sense precedents sota un model de pagament per ús. Aquesta popularitat ha propiciat l'aparició de nous serveis per resoldre determinats problemes informàtics a gran escala i simplificar el desenvolupament i desplegament d'aplicacions. Entre els serveis més destacats en els darrers anys hi ha les plataformes FaaS (Funcions com a Servei), el principal atractiu de les quals és la facilitat de desplegament de petits fragments de codi en determinats llenguatges de programació per realitzar tasques específiques en resposta a esdeveniments. Aquestes funcions són executades als servidors del proveïdor Cloud sense que els usuaris es preocupen del seu manteniment ni de la gestió de la seva elasticitat, mantenint sempre un model de pagament per ús de gra fi. Les plataformes FaaS pertanyen al paradigma informàtic conegut com a Serverless, el propòsit del qual és abstraure la gestió de servidors per part dels usuaris, permetent centrar els seus esforços únicament en el desenvolupament d'aplicacions. El problema del model FaaS és que està enfocat principalment a microserveis i tendeix a tenir limitacions en el temps d'execució i en les capacitats de computació (per exemple, no té suport per a maquinari d'acceleració com GPU). Tot i això, s'ha demostrat que la capacitat d'autoaprovisionament i l'alt grau de paral·lelisme d'aquests serveis poden ser molt adequats per a més aplicacions. A més, la seva inherent execució dirigida per esdeveniments fa que les funcions siguen perfectament adequades per ser definides com a passos en fluxos de treball de processament d'arxius (per exemple, fluxos de treball de computació científica). D'altra banda, l'auge dels dispositius intel·ligents i integrats (IoT), les innovacions a les xarxes de comunicació i la necessitat de reduir la latència en casos d'ús complexos han donat lloc al concepte d'Edge computing, o computació a la vora. L'Edge computing consisteix en el processament en dispositius propers a les fonts de dades per millorar els temps de resposta. La combinació d'aquest paradigma amb la computació en núvol, formant arquitectures amb dispositius a diferents nivells en funció de la proximitat a la font i la capacitat de còmput, s'ha encunyat com a continu de la computació al núvol (o continu computacional). Aquesta tesi doctoral pretén, doncs, aplicar diferents estratègies Serverless per permetre el desplegament d'aplicacions generalistes, empaquetades en contenidors de programari, a través dels diferents nivells del continu computacional. Per això, s'han desenvolupat múltiples eines per tal de: i) adaptar serveis FaaS de proveïdors Cloud públics; ii) integrar diferents components de programari per definir una plataforma Serverless en infraestructures privades i a la vora; iii) aprofitar dispositius d'acceleració a plataformes Serverless; i iv) facilitar el desplegament d'aplicacions i fluxos de treball mitjançant interfícies d'usuari. A més, s'han creat i s'han adaptat diversos casos d'ús per avaluar els desenvolupaments aconseguits.[EN] In recent years, the popularity of Cloud computing has allowed users to access unprecedented compute, network, and storage resources under a pay-per-use model. This popularity led to new services to solve specific large-scale computing challenges and simplify the development and deployment of applications. Among the most prominent services in recent years are FaaS (Function as a Service) platforms, whose primary appeal is the ease of deploying small pieces of code in certain programming languages to perform specific tasks on an event-driven basis. These functions are executed on the Cloud provider's servers without users worrying about their maintenance or elasticity management, always keeping a fine-grained pay-per-use model. FaaS platforms belong to the computing paradigm known as Serverless, which aims to abstract the management of servers from the users, allowing them to focus their efforts solely on the development of applications. The problem with FaaS is that it focuses on microservices and tends to have limitations regarding the execution time and the computing capabilities (e.g. lack of support for acceleration hardware such as GPUs). However, it has been demonstrated that the self-provisioning capability and high degree of parallelism of these services can be well suited to broader applications. In addition, their inherent event-driven triggering makes functions perfectly suitable to be defined as steps in file processing workflows (e.g. scientific computing workflows). Furthermore, the rise of smart and embedded devices (IoT), innovations in communication networks and the need to reduce latency in challenging use cases have led to the concept of Edge computing. Edge computing consists of conducting the processing on devices close to the data sources to improve response times. The coupling of this paradigm together with Cloud computing, involving architectures with devices at different levels depending on their proximity to the source and their compute capability, has been coined as Cloud Computing Continuum (or Computing Continuum). Therefore, this PhD thesis aims to apply different Serverless strategies to enable the deployment of generalist applications, packaged in software containers, across the different tiers of the Cloud Computing Continuum. To this end, multiple tools have been developed in order to: i) adapt FaaS services from public Cloud providers; ii) integrate different software components to define a Serverless platform on on-premises and Edge infrastructures; iii) leverage acceleration devices on Serverless platforms; and iv) facilitate the deployment of applications and workflows through user interfaces. Additionally, several use cases have been created and adapted to assess the developments achieved.Risco Gallardo, S. (2023). Serverless Strategies and Tools in the Cloud Computing Continuum [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/202013Compendi

    The outlooks of international students when immersed in an Irish higher education setting

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    Ireland’s history of education for understanding internationalisation in education is important. The country once used English as a second language but was provoked by famine and opportunity to gradually shift to be an English speaking country. The impacts of this language on Ireland have been profound, and discussion in this analysis establishes how the nation viewed education as a means of opportunity. In the 20th Century, Ireland developed rapidly following membership of the OECD and the EU. Notably, as Ireland modernised it responded to international commonalities, while higher education and participation in the EHEA made Ireland transition to be a more competitive producer of education. The Global Financial Crisis (GFC) impacted Ireland in unprecedented ways. Ireland had been preparing to engage in greater internationalisation in higher education, until economic catastrophe expediated this process. A series of policy changes were implemented in this era signalling widespread reform to meet the requirements of the Bologna Process and economic restrictions. In 2010 and 2016, Irish strategies for internationalisation were revealed. These strategies are critiqued, and a thorough understanding of their outcomes and expectations is considered. Linguistic imperialism is applied to comprehend and establish aspects such as Irish government’s interpretation of global citizenship, which influences the strategies. An interpretivist paradigm guides data collection of semi-structured interviews which analyse the experiences students from China. The significance of the data collected for this study comes from providing Chinese students in Ireland an opportunity to share their experiences and to have a voice in discussions on internationalisation. Five themes emerged from the data: experiences; being a Chinese student in Ireland; role of the university; social networks; career benefits. The penultimate discussion and analysis show the presence of student agency in almost every action carried out. Agency was analysed and discussed in relation to students attempts to become more independent, their need for transferable experiences, and establishing a sense of belonging. Currents mechanisms for assessing students’ progress and supporting life and learning in Ireland appear inadequate and in need of revision

    Changing images? Italian Twitter discourse on China and the United States during the first wave of COVID-19

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    Although public diplomacy and its influence on foreign public opinion have been central themes in recent research, the latter often lacks methodological diversity and does not consider how states create competing images. Our study offers a framework for understanding Italian public opinion using a triangulation approach that combines traditional public opinion surveys with advanced text analysis of social media content. We compare the representation of China and the United States in the Italian Twitter community during the first wave of the COVID-19 pandemic. Our analysis shows that Italians who perceived China as a viable alternative to Western governments in public opinion surveys did so because they distrusted Western leaders and institutions

    Techniques and graft materials for repairing peripheral nerve defects

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    Peripheral nerve defects refer to damage or destruction occurring in the peripheral nervous system, typically affecting the limbs and face. The current primary approaches to address peripheral nerve defects involve the utilization of autologous nerve transplants or the transplantation of artificial material. Nevertheless, these methods possess certain limitations, such as inadequate availability of donor nerve or unsatisfactory regenerative outcomes post-transplantation. Biomaterials have been extensively studied as an alternative approach to promote the repair of peripheral neve defects. These biomaterials include both natural and synthetic materials. Natural materials consist of collagen, chitosan, and silk, while synthetic materials consist of polyurethane, polylactic acid, and polycaprolactone. Recently, several new neural repair technologies have also been developed, such as nerve regeneration bridging technology, electrical stimulation technology, and stem cell therapy technology. Overall, biomaterials and new neural repair technologies provide new methods and opportunities for repairing peripheral nerve defects. However, these methods still require further research and development to enhance their effectiveness and feasibility

    Industry Platforms: A New Mode of Coordination in the Economy

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    This discussion paper is a plea for an urgently needed shift in perspective: from the concentration of social science research on the ubiquitous platforms of the consumption- and communication-based internet to the investigation of the platform-oriented reorganization of industrial distribution, production and innovation processes, which has so far received far less attention. The paper focuses on two questions. Firstly, what distinguishes industrial platforms from the platforms that characterize the consumption- and- communication-based internet? Can typical peculiarities and overarching characteristics of platform-based forms of work and organization in industry be identified? And secondly, do platforms represent an independent form of organization and coordination of industrial market, production and innovation processes that is substantially different from organized networks? The paper undertakes an empirical mapping and classification of the little explored field of industrial platforms and discusses from a theoretical-conceptual perspective why platforms should be conceived of as a sui generis form of organization whose dominant mode of coordination can be described as rule-based curation

    Location Reference Recognition from Texts: A Survey and Comparison

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    A vast amount of location information exists in unstructured texts, such as social media posts, news stories, scientific articles, web pages, travel blogs, and historical archives. Geoparsing refers to recognizing location references from texts and identifying their geospatial representations. While geoparsing can benefit many domains, a summary of its specific applications is still missing. Further, there is a lack of a comprehensive review and comparison of existing approaches for location reference recognition, which is the first and core step of geoparsing. To fill these research gaps, this review first summarizes seven typical application domains of geoparsing: geographic information retrieval, disaster management, disease surveillance, traffic management, spatial humanities, tourism management, and crime management. We then review existing approaches for location reference recognition by categorizing these approaches into four groups based on their underlying functional principle: rule-based, gazetteer matching–based, statistical learning-–based, and hybrid approaches. Next, we thoroughly evaluate the correctness and computational efficiency of the 27 most widely used approaches for location reference recognition based on 26 public datasets with different types of texts (e.g., social media posts and news stories) containing 39,736 location references worldwide. Results from this thorough evaluation can help inform future methodological developments and can help guide the selection of proper approaches based on application needs

    An alternative planetary future?: Digital sovereignty frameworks and the decolonial option

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    The frameworks of cyber, technology and data sovereignty have become some of the most influential alternative technological imaginaries. Developed by states and civil society groups, such frameworks are seducing a broad range of actors seeking to reassert their autonomy and self-determination in relation to digital technology and infrastructure. Against this backdrop, this article interrogates the alleged transformative character of digital sovereignty. Do these frameworks support alternative planetary futures, or do they involve a mere change in the actors who are privileging from the technological status quo? To answer this question, I examine the rhetoric and realisation of digital sovereignty frameworks by the Chinese state, the European Union (EU) and Latin American civil society in light of Walter Mignolo's decolonial option. The decolonial option gets inspiration from decolonial praxis and aims at enabling polycentric, noncapitalist and nonanthropocentric planetary futures. As I show, there is some degree of alignment between digital sovereignty frameworks and the decolonial option in the sphere of international politics, but less so in the world economy and the environment. While in some areas the formulations by the Chinese state and the EU can exacerbate coloniality, the Latin American civil society one constitutes a promising attempt at appropriating digital sovereignty from below and promoting peaceful forms of coexistence with the environment although needs further development

    Measuring the Impact of China’s Digital Heritage: Developing Multidimensional Impact Indicators for Digital Museum Resources

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    This research investigates how to best assess the impact of China’s digital heritage and focuses on digital museum resources. It is motivated by the need for tools to help governing bodies and heritage organisations assess the impact of digital heritage resources. The research sits at the intersection of Chinese cultural heritage, digital heritage, and impact assessment (IA) studies, which forms the theoretical framework of the thesis. Informed by the Balanced Value Impact (BVI) Model, this thesis addresses the following questions: 1. How do Western heritage discourses and Chinese culture shape ‘cultural heritage’ and the museum digital ecosystem in modern China? 2. Which indicators demonstrate the multidimensional impacts of digital museum resources in China? How should the BVI Model be adapted to fit the Chinese cultural landscape? 3. How do different stakeholders perceive these impact indicators? What are the implications for impact indicator development and application? This research applies a mixed-method approach, combining desk research, survey, and interview with both public audiences and museum professionals. The research findings identify 18 impact indicators, covering economic, social, innovation and operational dimensions. Notably, the perceived usefulness and importance of different impact indicators vary among and between public participants and museum professionals. The study finds the BVI Model helpful in guiding the indicator development process, particularly in laying a solid foundation to inform decision-making. The Strategic Perspectives and Value Lenses provide a structure to organise various indicators and keep them focused on the impact objectives. However, the findings also suggest that the Value Lenses are merely signifiers; their signified meanings change with cultural contexts and should be examined when the Model is applied in a different cultural setting. This research addresses the absence of digital resource IA in China’s heritage sector. It contributes to the field of IA for digital heritage within and beyond the Chinese context by challenging the current target-setting culture in performance evaluation. Moreover, the research ratifies the utility of the BVI Model while modifying it to fit China’s unique cultural setting. This thesis as a whole demonstrates the value of using multidimensional impact indicators for evidence-based decision-making and better museum practices in the digital domain

    Digitalization and Development

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    This book examines the diffusion of digitalization and Industry 4.0 technologies in Malaysia by focusing on the ecosystem critical for its expansion. The chapters examine the digital proliferation in major sectors of agriculture, manufacturing, e-commerce and services, as well as the intermediary organizations essential for the orderly performance of socioeconomic agents. The book incisively reviews policy instruments critical for the effective and orderly development of the embedding organizations, and the regulatory framework needed to quicken the appropriation of socioeconomic synergies from digitalization and Industry 4.0 technologies. It highlights the importance of collaboration between government, academic and industry partners, as well as makes key recommendations on how to encourage adoption of IR4.0 technologies in the short- and long-term. This book bridges the concepts and applications of digitalization and Industry 4.0 and will be a must-read for policy makers seeking to quicken the adoption of its technologies

    Research on the Development of Voice Assistants in the Era of Artificial Intelligence

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    Voice assistants have gradually occupied an important position in the products of many electronics companies. Artificial Intelligence voice assistants are able to interpret human speech and respond. Users can ask their assistant questions and manage other essential tasks such as email calendars through verbal commands. This paper analyzes the artificial intelligence voice assistant through the method of comparative analysis. The author studies the development situation of intelligent voice assistants, and compares the differences between Chinese and foreign voice assistants, and finally discusses the relationship between voice intelligent assistants and people’s lives. The author found that users in different countries have different functional preferences for using voice assistants, but they can help people’s work and life to a great extent. In other words, voice assistants play an important role in contemporary society. Therefore, people need to better understand the relationship between humans and machin
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