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Dissertations / Theses on the topic 'Cloud computing and storage'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Arteaga, Clavijo Dulcardo Ariel. "Flash Caching for Cloud Computing Systems." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2496.

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As the size of cloud systems and the number of hosted virtual machines (VMs) rapidly grow, the scalability of shared VM storage systems becomes a serious issue. Client-side flash-based caching has the potential to improve the performance of cloud VM storage by employing flash storage available on the VM hosts to exploit the locality inherent in VM IOs. However, there are several challenges to the effective use of flash caching in cloud systems. First, cache configurations such as size, write policy, metadata persistency and RAID level have significant impacts on flash caching. Second, the typi

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Al, Beshri Aiiad Ahmad M. "Outsourcing data storage without outsourcing trust in cloud computing." Thesis, Queensland University of Technology, 2013. https://eprints.qut.edu.au/61738/1/Aiiad_Ahmad_M._Al_Beshri_Thesis.pdf.

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The main theme of this thesis is to allow the users of cloud services to outsource their data without the need to trust the cloud provider. The method is based on combining existing proof-of-storage schemes with distance-bounding protocols. Specifically, cloud customers will be able to verify the confidentiality, integrity, availability, fairness (or mutual non-repudiation), data freshness, geographic assurance and replication of their stored data directly, without having to rely on the word of the cloud provider.

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3

Gonçalves, André Miguel Augusto. "Estimating data divergence in cloud computing storage systems." Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/10852.

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Dissertação para obtenção do Grau de Mestre em Engenharia Informática<br>Many internet services are provided through cloud computing infrastructures that are composed of multiple data centers. To provide high availability and low latency, data is replicated in machines in different data centers, which introduces the complexity of guaranteeing that clients view data consistently. Data stores often opt for a relaxed approach to replication, guaranteeing only eventual consistency, since it improves latency of operations. However, this may lead to replicas having different values for the same da

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Blakstad, Kåre Marius, and Mats Andreassen. "Security in Cloud Computing : A Security Assessment of Cloud Computing Providers for an Online Receipt Storage." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-21041.

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Considerations with regards to security issues and demands must be addressed before migrating an application into a cloud computing environment. Different vendors, Microsoft Azure, Amazon Web Services and Google AppEngine, provide different capabilities and solutions to the individual areas of concern presented by each application. Through a case study of an online receipt storage application from the company dSafe, a basis is formed for the evaluation. The three cloud computing vendors are assessed with regards to a security assessment framework provided by the Cloud Security Alliance and the

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Glushchenko, Volodymyr. "Cloud technology." Thesis, Дніпровський національний університет залізничного транспорту імені академіка В. Лазаряна, 2019. https://er.knutd.edu.ua/handle/123456789/14705.

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The work deals with cloud technology. Cloud computing makes it easy to share and access digital resources from any part of the globe. This leads to better collaboration between global teams.<br>Робота присвячена технологіям хмарної обробки даних. «Хмарні» обчислення полегшують обмін і доступ до цифрових ресурсів з будь-якої частини земної кулі. Це веде до кращого співпраці між глобальними командами.<br>Работа посвящена технологиям облачной обработки данных. «Облачные» вычисления облегчают обмен и доступ к цифровым ресурсам из любой части земного шара. Это ведет к лучшему сотрудничеству между г

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Rusanova, Olga, Alexander Korochkin, and Oleg Shevelo. "Scheduling problems for mobile cloud computing." Thesis, National aviation university, 2021. https://er.nau.edu.ua/handle/NAU/50689.

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Nowadays the popularity of mobile devices is rapidly increased. New facilities of them (Wi-Fi, GPS, high speed processors etc.) allows to improve mobile applications in commerce, learning, gaming, health monitoring, sports etc. But really there are several reasons that limit mobile computing: limited storage capacity, limited battery life and limited processing power of mobile devices. This paper is dedicated to Mobile cloud computing (MCC). We consider MCC as combination of mobile and cloud computing where both data storage and data processing are performed outside the mobile device

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AlJabban, Tarek. "Distributed database storage management for a cloud computing infrastructure." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114556.

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Internet applications have recently witnessed tremendous growth in terms of both size and complexity. Cloud computing is one of the several distributed technologies that have emerged to help meeting the objectives of these applications in terms of achieving high availability, performance and scalability.Platform as a Service (PaaS) is one kind of services provided by cloud solutions. These systems often follow a multi-tier architecture consisting mainly of a presentation tier, an application tier and a database tier. The volumes of data exchanged between the application tier and the database

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SILVA, Thiago Jamir e. "Uma arquitetura de cloud storage para backup de arquivos." Universidade Federal de Pernambuco, 2014. https://repositorio.ufpe.br/handle/123456789/18013.

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Submitted by Irene Nascimento (irene.kessia@ufpe.br) on 2016-10-18T19:25:38Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) mestrado_thiago_jamir.pdf: 1864217 bytes, checksum: 4e432bf2e6196fc2e2fb739007114e2e (MD5)<br>Made available in DSpace on 2016-10-18T19:25:38Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) mestrado_thiago_jamir.pdf: 1864217 bytes, checksum: 4e432bf2e6196fc2e2fb739007114e2e (MD5) Previous issue date: 2014-04-05<br>Nos últimos anos, o volume de dados gerados por indivíd

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Buop, George Onyango. "Data storage security for cloud computing using elliptic curve cryptography." Master's thesis, University of Cape Town, 2020. http://hdl.handle.net/11427/32489.

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Institutions and enterprises are moving towards more service availability, managed risk and at the same time, aim at reducing cost. Cloud Computing is a growing technology, thriving in the fields of information communication and data storage. With the proliferation of online activity, more and more information is saved as data every day. This means that more data is being stored in the cloud than ever before. Data that is stored online often holds private information – such as addresses, payment details and medical documentation. These become the target of cyber criminals. There is therefore g

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Nielsen, Simon, and Robin Karlsson. "Implementing a Synchronization Application for Cloud Computing." Thesis, Linköpings universitet, Programvara och system, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-81366.

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This report describes a bachelor thesis performed at Xcerion for their subsidiary CloudMe. CloudMe has a service for cloud computing which makes your files accessible from anywhere, anytime. Cloud computing is addressed to both business and ordinary home users. With the ability to store important documents or family photos in the cloud other important subjects can be focused on. A cloud can in short be described as a metaphor for the internet and with the growing server houses and accessibility of cloud computing the need for USB-sticks (Universal Serial Bus) and hard drives are slowly fading

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Noman, Ali. "Addressing the Data Location Assurance Problem of Cloud Storage Environments." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37375.

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In a cloud storage environment, providing geo-location assurance of data to a cloud user is very challenging as the cloud storage provider physically controls the data and it would be challenging for the user to detect if the data is stored in different datacenters/storage servers other than the one where it is supposed to be. We name this problem as the “Data Location Assurance Problem” of a Cloud Storage Environment. Aside from the privacy and security concerns, the lack of geo-location assurance of cloud data involved in the cloud storage has been identified as one of the main reasons why

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Zapolskas, Vytautas. "Securing Cloud Storage Service." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for telematikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18626.

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Cloud computing brought flexibility, scalability, and capital cost savings to the IT industry. As more companies turn to cloud solutions, securing cloud based services becomes increasingly important, because for many organizations, the final barrier to adopting cloud computing is whether it is sufficiently secure.More users rely on cloud storage as it is mainly because cloud storage is available to be used by multiple devices (e.g. smart phones, tablets, notebooks, etc.) at the same time. These services often offer adequate protection to user's private data. However, there were cases wher

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Sampé, Domenech Josep. "Enhancing the Programmability of Cloud Object Storage." Doctoral thesis, Universitat Rovira i Virgili, 2018. http://hdl.handle.net/10803/665607.

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En un món que depèn cada vegada més de la tecnologia, les dades digitals es generen a una escala sense precedents. Això fa que empreses que requereixen d'un gran espai d'emmagatzematge, com Netflix o Dropbox, utilitzin solucions d'emmagatzematge al núvol. Mes concretament, l'emmagatzematge d'objectes, donada la seva simplicitat, escalabilitat i alta disponibilitat. No obstant això, aquests magatzems s'enfronten a tres desafiaments principals: 1) Gestió flexible de càrregues de treball de múltiples usuaris. Normalment, els magatzems d'objectes són sistemes multi-usuari, la qual cosa significa q

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Karumanchi, Sushama. "A TRUSTED STORAGE SYSTEM FOR THE CLOUD." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/22.

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Data stored in third party storage systems like the cloud might not be secure since confidentiality and integrity of data are not guaranteed. Though cloud computing provides cost-effective storage services, it is a third party service and so, a client cannot trust the cloud service provider to store its data securely within the cloud. Hence, many organizations and users may not be willing to use the cloud services to store their data in the cloud until certain security guarantees are made. In this thesis, a solution to the problem of securely storing the client’s data by maintaining the confid

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Meinel, Christoph, Maxim Schnjakin, Tobias Metzke, and Markus Freitag. "Anbieter von Cloud Speicherdiensten im Überblick." Universität Potsdam, 2014. http://opus.kobv.de/ubp/volltexte/2014/6878/.

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Durch die immer stärker werdende Flut an digitalen Informationen basieren immer mehr Anwendungen auf der Nutzung von kostengünstigen Cloud Storage Diensten. Die Anzahl der Anbieter, die diese Dienste zur Verfügung stellen, hat sich in den letzten Jahren deutlich erhöht. Um den passenden Anbieter für eine Anwendung zu finden, müssen verschiedene Kriterien individuell berücksichtigt werden. In der vorliegenden Studie wird eine Auswahl an Anbietern etablierter Basic Storage Diensten vorgestellt und miteinander verglichen. Für die Gegenüberstellung werden Kriterien extrahiert, welche bei jedem der

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Cao, Ning. "Secure and Reliable Data Outsourcing in Cloud Computing." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-dissertations/333.

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"The many advantages of cloud computing are increasingly attracting individuals and organizations to outsource their data from local to remote cloud servers. In addition to cloud infrastructure and platform providers, such as Amazon, Google, and Microsoft, more and more cloud application providers are emerging which are dedicated to offering more accessible and user friendly data storage services to cloud customers. It is a clear trend that cloud data outsourcing is becoming a pervasive service. Along with the widespread enthusiasm on cloud computing, however, concerns on data security with cl

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Navarro, Martín Joan. "From cluster databases to cloud storage: Providing transactional support on the cloud." Doctoral thesis, Universitat Ramon Llull, 2015. http://hdl.handle.net/10803/285655.

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Durant les últimes tres dècades, les limitacions tecnològiques (com per exemple la capacitat dels dispositius d'emmagatzematge o l'ample de banda de les xarxes de comunicació) i les creixents demandes dels usuaris (estructures d'informació, volums de dades) han conduït l'evolució de les bases de dades distribuïdes. Des dels primers repositoris de dades per arxius plans que es van desenvolupar en la dècada dels vuitanta, s'han produït importants avenços en els algoritmes de control de concurrència, protocols de replicació i en la gestió de transaccions. No obstant això, els reptes moderns d'emm

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Velusamy, Chandramohan Pavithra. "Intergration of CloudMe to Sonos wireless HiFi speaker system." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105177.

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CloudMe is a cloud computing service used for business and home users. CloudMe facilitates the user to store their personal files like music, video, documents and images. The primary focus of this thesis is on music. The personal music files can be uploaded to CloudMe manually or by using CloudMe sync in any order just like in personal computer. CloudMe offers different services to access the cloud from other devices like smart phones, web browser and the home computer. Sonos wireless HiFi system is a set of Sonos component interconnected with the mesh network with the primary function to pl

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Cheng, Yue. "Workload-aware Efficient Storage Systems." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/78677.

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The growing disparity in data storage and retrieval needs of modern applications is driving the proliferation of a wide variety of storage systems (e.g., key-value stores, cloud storage services, distributed filesystems, and flash cache, etc.). While extant storage systems are designed and tuned for a specific set of applications targeting a range of workload characteristics, they lack the flexibility in adapting to the ever-changing workload behaviors. Moreover, the complexities in implementing modern storage systems and adapting ever-changing storage requirements present unique opportunities

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Rostrom, Timothy James. "Framework to Secure Cloud-based Medical Image Storage and Management System Communications." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/3124.

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Picture Archiving and Communication Systems (PACS) have been traditionally constrained to the premises of the healthcare provider. This has limited the availability of these systems in many parts of the world and mandated major costs in infrastructure for those who employ them. Public cloud services could be a solution that eases the cost of ownership and provides greater flexibility for PACS implementations. This could make it possible to bring medical imaging services to places where it was previously unavailable and reduce the costs associated with these services for those who utilize them.

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Yu, Shucheng. "Data Sharing on Untrusted Storage with Attribute-Based Encryption." Digital WPI, 2010. https://digitalcommons.wpi.edu/etd-dissertations/321.

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"Storing data on untrusted storage makes secure data sharing a challenge issue. On one hand, data access policies should be enforced on these storage servers; on the other hand, confidentiality of sensitive data should be well protected against them. Cryptographic methods are usually applied to address this issue -- only encrypted data are stored on storage servers while retaining secret key(s) to the data owner herself; user access is granted by issuing the corresponding data decryption keys. The main challenges for cryptographic methods include simultaneously achieving system scalability and

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Al, Smadi Duha. "Information Sharing and Storage Behavior via Cloud Computing: Security and Privacy in Research and Practice and Users' Trust." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1505164/.

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This research contributes to the cloud computing (CC) literature and information science research by addressing the reality of information sharing and storage behavior (ISSB) of the users' personal information via CC. Gathering information about usage also allows this research to address the paradox between the research and practice. Additionally, this research explores the concept of trust and its role in the behavioral change relative to CC. The findings help reconcile the paradox between the two realms. Essay1 develops and tests cloud computing usage model (CCUM) that assesses ISSB. This

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Rodrigues, João Miguel Cardia Melro. "TSKY: a dependable middleware solution for data privacy using public storage clouds." Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/11071.

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Dissertação para obtenção do Grau de Mestre em Engenharia Informática<br>This dissertation aims to take advantage of the virtues offered by data storage cloud based systems on the Internet, proposing a solution that avoids security issues by combining different providers’ solutions in a vision of a cloud-of-clouds storage and computing. The solution, TSKY System (or Trusted Sky), is implemented as a middleware system, featuring a set of components designed to establish and to enhance conditions for security, privacy, reliability and availability of data, with these conditions being secured and

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Carpen-Amarie, Alexandra. "BlobSeer as a data-storage facility for clouds : self-Adaptation, integration, evaluation." Thesis, Cachan, Ecole normale supérieure, 2011. http://www.theses.fr/2011DENS0066/document.

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L’émergence de l’informatique dans les nuages met en avant de nombreux défis qui pourraient limiter l’adoption du paradigme Cloud. Tandis que la taille des données traitées par les applications Cloud augmente exponentiellement, un défi majeur porte sur la conception de solutions efficaces pour la gestion de données. Cette thèse a pour but de concevoir des mécanismes d’auto-adaptation pour des systèmes de gestion de données, afin qu’ils puissent répondre aux exigences des services de stockage Cloud en termes de passage à l’échelle, disponibilité et sécurité des données. De plus, nous nous propo

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Zhang, Gong. "Data and application migration in cloud based data centers --architectures and techniques." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41078.

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Computing and communication have continued to impact on the way we run business, the way we learn, and the way we live. The rapid technology evolution of computing has also expedited the growth of digital data, the workload of services, and the complexity of applications. Today, the cost of managing storage hardware ranges from two to ten times the acquisition cost of the storage hardware. We see an increasing demand on technologies for transferring management burden from humans to software. Data migration and application migration are one of popular technologies that enable computing and data

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Pesare, Stefano. "Sistemi di Backup e tecniche di conservazione dei dati digitali." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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La tesi si occupa del problema della conservazione dei dati digitali, spesso sottovalutato. Le odierne tecniche e strategie di conservazione e archiviazione non possono garantire da sole la sicurezza dei dati nel tempo, ma solo se vengono utilizzate sinergicamente. Durante questo percorso capiremo cosa siano i dati digitali, le loro caratteristiche e problematiche inerenti la loro gestione, nonché le tecniche di conservazione e storage. Vedremo come si sono evolute le memorie di massa, dalle schede perforate fino alla nascita dei dischi a stato solido. Inoltre, verranno introdotti il Cloud Com

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Saikauskas, Nerijus. "Veiksmų kaip įkalčių skaičiavimų debesies saugyklose atkūrimo metodika." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130826_103416-00274.

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Skaičiavimų debesies (angl. cloud computing) technologijos sukūrimas suteikė galimybę padidinti kompanijų veiklos efektyvumą, tačiau sukėlė ir naujų problemų, viena kurių – skaitmeninės teismo ekspertizės (angl. digital forensics) atlikimas nutolusioje aplinkoje. Apskritai teigiama, kad jeigu skaičiavimų debesies paslauga nefiksuoja tinkamų audito įrašų, nustatyti įkalčius tampa sunku arba tiesiog neįmanoma. Deja, paprastai šiam tikslui siūlomas funkcionalumas yra gana ribotas arba iš viso neegzistuoja. Šiame magistriniame darbe yra siūloma nauja metodika-įrankis, Žurnalizavimo Paramos Sistema

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Arman, Ala. "Automated Control of Elasticity for a Cloud-Based Key-Value Store." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-90336.

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“Pay-as-you-go” is one of the basic properties of Cloud computing. It means that people pay for the resources or services that they use. Moreover, the concept of load balancing has been a controversial issue in recent years. It is a method that is used to split a task to some smaller tasks and allocate them fairly to different resources resulting in a better performance. Considering these two concepts, the idea of “Elasticity” comes to attention. An Elastic system is one which adds or releases the resources based on the changes of the system variables. In this thesis, we extended a distributed

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Azraoui, Monir. "Vérifiabilité et imputabilité dans le Cloud." Thesis, Paris, ENST, 2016. http://www.theses.fr/2016ENST0032/document.

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Cette thèse propose de nouveaux protocoles cryptographiques, plus efficaces que l’existant, et qui permettent aux utilisateurs du nuage informatique (le cloud) de vérifier (i) la bonne conservation des données externalisées et (ii) l'exécution correcte de calculs externalisés. Nous décrivons d'abord un protocole cryptographique qui génère des preuves de récupérabilité, qui permettent aux propriétaires de données de vérifier que le cloud stocke leurs données correctement. Nous détaillons ensuite trois schémas cryptographiques pour vérifier l’exactitude des calculs externalisés en se focalisant

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Khan, Syeduzzaman. "A PROBABILISTIC MACHINE LEARNING FRAMEWORK FOR CLOUD RESOURCE SELECTION ON THE CLOUD." Scholarly Commons, 2020. https://scholarlycommons.pacific.edu/uop_etds/3720.

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The execution of the scientific applications on the Cloud comes with great flexibility, scalability, cost-effectiveness, and substantial computing power. Market-leading Cloud service providers such as Amazon Web service (AWS), Azure, Google Cloud Platform (GCP) offer various general purposes, memory-intensive, and compute-intensive Cloud instances for the execution of scientific applications. The scientific community, especially small research institutions and undergraduate universities, face many hurdles while conducting high-performance computing research in the absence of large dedicated cl

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Mata, Carlos. "Development and Evaluation of an Open Platform for Recording, Storage, Visualization and Analysis of Biosignals on the Cloud." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233394.

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There is a large number of biosignals that can be obtained from the human body. Repositories of biosignals are used for researchers in many studies as datasets. Datasets with clinical and personal information have many regulations and they are not accessible to everyone. Platforms with acquisition, recording and visualization of data are currently used in homecare systems for monitoring patients in an effcient way. Distant monitoring allows a good and prompt communication between patients and physicians. This work describes the design and development of a platform at hardware and software leve

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Toor, Salman Zubair. "Managing Applications and Data in Distributed Computing Infrastructures." Doctoral thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-173467.

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During the last decades the demand for large-scale computational and storage resources in science has increased dramatically. New computational infrastructures enable scientists to enter a new mode of science, e-science, which complements traditional theory and experiments. E-science is inherently interdisciplinary, involving researchers from several disciplines, and also opens up for large-scale collaborative efforts where physically distributed groups of scientists share software tools and data to make scientific progress. Within the field of e-science, new challenges are emerging in managin

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Azraoui, Monir. "Vérifiabilité et imputabilité dans le Cloud." Electronic Thesis or Diss., Paris, ENST, 2016. http://www.theses.fr/2016ENST0032.

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Cette thèse propose de nouveaux protocoles cryptographiques, plus efficaces que l’existant, et qui permettent aux utilisateurs du nuage informatique (le cloud) de vérifier (i) la bonne conservation des données externalisées et (ii) l'exécution correcte de calculs externalisés. Nous décrivons d'abord un protocole cryptographique qui génère des preuves de récupérabilité, qui permettent aux propriétaires de données de vérifier que le cloud stocke leurs données correctement. Nous détaillons ensuite trois schémas cryptographiques pour vérifier l’exactitude des calculs externalisés en se focalisant

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Lu, Tao. "Optimizing Virtual Machine I/O Performance in Cloud Environments." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4640.

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Maintaining closeness between data sources and data consumers is crucial for workload I/O performance. In cloud environments, this kind of closeness can be violated by system administrative events and storage architecture barriers. VM migration events are frequent in cloud environments. VM migration changes VM runtime inter-connection or cache contexts, significantly degrading VM I/O performance. Virtualization is the backbone of cloud platforms. I/O virtualization adds additional hops to workload data access path, prolonging I/O latencies. I/O virtualization overheads cap the throughput of hi

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Richards, Craig. "Development of Cyber-Technology Information for Remotely Accessing Chemistry Instrumentation." Youngstown State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1311712029.

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Mrowczynski, Piotr. "Scaling cloud-native Apache Spark on Kubernetes for workloads in external storages." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-237455.

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CERN Scalable Analytics Section currently offers shared YARN clusters to its users as monitoring, security and experiment operations. YARN clusters with data in HDFS are difficult to provision, complex to manage and resize. This imposes new data and operational challenges to satisfy future physics data processing requirements. As of 2018, there were over 250 PB of physics data stored in CERN’s mass storage called EOS. Hadoop-XRootD Connector allows to read over network data stored in CERN EOS. CERN’s on-premise private cloud based on OpenStack allows to provision on-demand compute resources. E

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Vijayakumar, Sruthi. "Hadoop Based Data Intensive Computation on IAAS Cloud Platforms." UNF Digital Commons, 2015. http://digitalcommons.unf.edu/etd/567.

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Cloud computing is a relatively new form of computing which uses virtualized resources. It is dynamically scalable and is often provided as pay for use service over the Internet or Intranet or both. With increasing demand for data storage in the cloud, the study of data-intensive applications is becoming a primary focus. Data intensive applications are those which involve high CPU usage, processing large volumes of data typically in size of hundreds of gigabytes, terabytes or petabytes. The research in this thesis is focused on the Amazon’s Elastic Cloud Compute (EC2) and Amazon Elastic Map Re

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Edholm, Sofia, and Johanna Malm. "Datalagring : En uppsats om skiftet mellan datalagring lokalt och i molnet." Thesis, Uppsala universitet, Institutionen för informatik och media, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-226806.

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Vi lever i ett informationssamhälle. Idag hittar vi fakta om vad som helst, var vi än är, genom de gigantiska och otroliga resurser som nås via ICT idag. Med ökad teknisk kapacitet har informationsinsamlingen ökat drastiskt i mängd. Hur vi lagrar data är dock mindre diskuterat. Det nya skifte som kommit fram i datalagring är en flytt från lokalt förvaltade servrar till lagring i molnet. Molntjänster är ett idag allmänt känt begrepp inom IT-branschen, men för att få så mycket uppmärksamhet är termen väldigt vag. Uppsatsen syftar till att reflektera kring molnets innebörd samt utreda om molnet l

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Kyazze, Michael. "A hybrid model for managing personal health records in South Africa." Thesis, Nelson Mandela Metropolitan University, 2014. http://hdl.handle.net/10948/3145.

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Doctors can experience difficulty in accessing medical information of new patients. One reason for this is that the management of medical records is mostly institution-centred. The lack of access to medical information may negatively affect patients in several ways. These include new medical tests that may need to be carried out at a cost to the patient and doctors prescribing drugs to which the patient is allergic. This research investigates how patients can play an active role in sharing their personal health records (PHRs) with doctors located in geographically separate areas. In order to a

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Raffa, Viviana. "Edge/cloud virtualization techniques and resources allocation algorithms for IoT-based smart energy applications." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22864/.

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Nowadays, the installation of residential battery energy storage (BES) has increased as a consequence of the decrease in the cost of batteries. The coupling of small-scale energy generation (residential PV) and residential BES promotes the integration of microgrids (MG), i.e., clusters of local energy sources, energy storages, and customers which are represented as a single controllable entity. The operations between multiple grid-connected MGs and the distribution network can be coordinated by controlling the power exchange; however, in order to achieve this level of coordination, a co

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Sousa, Valter Balegas de. "Key-CRDT stores." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/7802.

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Dissertação para obtenção do Grau de Mestre em Engenharia Informática<br>The Internet has opened opportunities to create world scale services. These systems require highavailability and fault tolerance, while preserving low latency. Replication is a widely adopted technique to provide these properties. Different replication techniques have been proposed through the years, but to support these properties for world scale services it is necessary to trade consistency for availability, fault-tolerance and low latency. In weak consistency models, it is necessary to deal with possible conflicts ari

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Libardi, Rafael Mira de Oliveira. "Desenvolvimento de mecanismos para auxiliar no estudo e seleção de técnicas de armazenamento distribuído de arquivos em ambientes de computação multinuvem." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-29032016-114401/.

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O armazenamento de arquivos e dados está seguindo um paradigma de mudança para a Internet utilizando a nuvem. Porém, este processo ainda gera algumas dúvidas em relação à segurança e a disponibilidade dos arquivos. Este projeto de mestrado propõe criar uma camada de abstração entre diversos servidores de armazenamento público, sem infraestrutura adicional, e possibilitar ao usuário comum um método de armazenamento distribuído, com maior redundância e segurança se comparada às abordagens atuais de armazenamento. Outro aspecto importante deste projeto foi criar uma ferramenta que seja flexível o

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Ouarnoughi, Hamza. "Placement autonomique de machines virtuelles sur un système de stockage hybride dans un cloud IaaS." Thesis, Brest, 2017. http://www.theses.fr/2017BRES0055/document.

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Les opérateurs de cloud IaaS (Infrastructure as a Service) proposent à leurs clients des ressources virtualisées (CPU, stockage et réseau) sous forme de machines virtuelles (VM). L’explosion du marché du cloud les a contraints à optimiser très finement l’utilisation de leurs centres de données afin de proposer des services attractifs à moindre coût. En plus des investissements liés à l’achat des infrastructures et de leur coût d’utilisation, la consommation énergétique apparaît comme un point de dépense important (2% de la consommation mondiale) et en constante augmentation. Sa maîtrise représ

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Zampetakis, Stamatis. "Scalable algorithms for cloud-based Semantic Web data management." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112199/document.

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Afin de construire des systèmes intelligents, où les machines sont capables de raisonner exactement comme les humains, les données avec sémantique sont une exigence majeure. Ce besoin a conduit à l’apparition du Web sémantique, qui propose des technologies standards pour représenter et interroger les données avec sémantique. RDF est le modèle répandu destiné à décrire de façon formelle les ressources Web, et SPARQL est le langage de requête qui permet de rechercher, d’ajouter, de modifier ou de supprimer des données RDF. Être capable de stocker et de rechercher des données avec sémantique

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Jensen, Deron Eugene. "System-wide Performance Analysis for Virtualization." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1789.

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With the current trend in cloud computing and virtualization, more organizations are moving their systems from a physical host to a virtual server. Although this can significantly reduce hardware, power, and administration costs, it can increase the cost of analyzing performance problems. With virtualization, there is an initial performance overhead, and as more virtual machines are added to a physical host the interference increases between various guest machines. When this interference occurs, a virtualized guest application may not perform as expected. There is little or no information to t

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Moataz, Tarik. "Searching over encrypted data." Thesis, Télécom Bretagne, 2016. http://www.theses.fr/2016TELB0418/document.

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Les services cloud offrent des coûts réduits, une élasticité et un espace de stockage illimité qui attirent de nombreux utilisateurs. Le partage de fichiers, les plates-formes collaboratives, les plateformes de courrier électroniques, les serveurs de sauvegarde et le stockage de fichiers sont parmi les services qui font du cloud un outil essentiel pour une utilisation quotidienne. Actuellement, la plupart des systèmes d'exploitation proposent des applications de stockage externalisées intégrées, par conception, telles que One Drive et iCloud, en tant que substituts naturels succédant au stocka

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Yanggratoke, Rerngvit. "Contributions to Performance Modeling and Management of Data Centers." Licentiate thesis, KTH, Kommunikationsnät, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-129296.

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Over the last decade, Internet-based services, such as electronic-mail, music-on-demand, and social-network services, have changed the ways we communicate and access information. Usually, the key functionality of such a service is in backend components, which are located in a data center, a facility for hosting computing systems and related equipment. This thesis focuses on two fundamental problems related to the management, dimensioning, and provisioning of such backend components. The first problem centers around resource allocation for a large-scale cloud environment. Data centers have beco

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Zogaj, Drilon. "Riskhantering för molnbaserade affärssystem i stora organisationer : En studie om hur stora organisationer hanterar säkerhetsrisker som kan uppstå vid nyttjandet av molnbaserade affärssystem." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-41338.

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Framväxten av molntjänster är en trend som påverkar organisationer i allt större utsträckning vilket anses vara framtiden inom informationsteknik. Idag migrerar stora organisationer i allt större grad sina affärskritiska affärssystem till molnet, trots att det är en av de mest riskabla, kostsamma och tidskrävande IT-investering som en organisation någonsin kan göra. Molnbaserade affärssystem kan medföra fördelar men också säkerhetsrisker som exempelvis att lagra organisationens data hos tredjeparts-leverantörer. Säkerhetsrisker kan inte elimineras, utan de behöver hanteras och reduceras. Denna

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Lebedeva, A. O. "Cloud computing." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/33692.

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Cloud Computing is a revolution that will define IT in the second decade of the 21st Century. It have become the basis for radical business innovation and new business models, and for significant improvements in the effectiveness of anyone using information technology. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/33692

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Begic, Dina. "Cloud Computing." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/5697/.

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