User experience studies of personal cloud storage services

Nowadays, individuals’ data is at their disposal in real time from any device with the assistance of cloud storage services (CSS, e.g. Dropbox, OneDrive, iCloud and Google Drive). Success of cloud computing in an enterprise ultimately depends on delivering user experience (UX) which delivers business applications anytime and anywhere, and on any device that user prefers. CSSs empower new kind of collaborations between individuals and have fundamental impact on how we organize and share our data. Despite an increasing popularity of cloud computing among researchers and academia, and vast variety of CSSs offered to the end users by cloud computing, the literature on UX studies of these services is quite restricted. This master’s thesis studies UX of different CSSs (with focus on Dropbox, Google Drive, OneDrive, and iCloud) based on 10 interviews and 65 Web survey responses. We analysed the data qualitatively and quantitatively. The results consist of reasons for the most positive and negative experiences and descriptions of current habits and motivations of the CSS users. As the current use of CSSs is still mostly individual, we also investigated the potential of taking the UX of CSSs to the next level by integrating different social features to current CSSs. We conclude the thesis by explaining the significance of various Cloud UX aspects in the context of CSSs and proposing design implications for enhancing UX of CSSs

How to design for persistence and retention in MOOCs?

Design of educational interventions is typically carried out following a design cycle involving phases of investigation, conceptualization, prototyping, implementation, execution and evaluation. This cycle can be applied at different levels of granularity e.g. learning activity, module, course or programme. In this paper we consider an aspect of learner behavior that can be critical to the success of many MOOCs i.e. their persistence to study, and the related theme of learner retention. We reflect on the impact that consideration of these can have on design decisions at different stages in the design cycle with the aim of en-hancing MOOC design in relation to learner persistence and retention, with particular attention to the European context

The lessons learnt from Willy Wonka (includes alternate ending)

Despite all that research has taught us, lectures and seminars still continue to be largely delivered in the classroom, with students sat in rows for far too long. Lecturers offer information, which some students choose to absorb. Some students choose not to, or don’t have the nature to be able to. So, what if we change this? What happens? And even more crucially, what can we do to use the ‘student voice’ to enhance how they learn and what they learn? Following a successful pilot in Experiential Education which we presented at the LJMU conference in 2013 we made developments which allow students to shape their own learning experience - truly engaging them in delivery. With Nick changing institutions at the beginning of this academic year we have both continued to explore Experiential Educational but in different ways. This presentation examines these developments and looks at three key areas: 1) The needs of students (which they weren’t shy in making clear to us!) and the differing learning styles they have, to see how teachers can use them to deliver an all-encompassing experience which is interactive, engaging and informative. 2) A taster of the technologies involved in flipped classrooms and the benefits of experiential education. 3) The reflective nature of learning journals to encourage the student voice to be raised (and then heard). Charlie got the Golden Ticket because he dreamt about it, because he did everything he could to get it. So, where did the others go wrong? And what could Wonka have done about this

Augmented Reality in Business and Economics: Bibliometric and Topics Analysis

Augmented reality enhances the sensory experience of the real world, often across multiple senses such as visual, hearing, tactile and sensorimotor, with technology using computer-generated sensory input. Current literature reviews of augmented reality mainly focus on its generic usage or specific topics, such as medicine or tourism. However, augmented reality has become one of the prevalent topics in business and economics since it is one of the main growth drivers of disruptive companies. Since many companies are considering its usage in their business models, there is a lack of literature review in business and economics. Therefore, this paper aims to present a literature review of the scientific research that investigates the broad range of usage of augmented reality in business and economics. Web of Knowledge has been searched with the keywords "augmented reality" within the research area of business and economics for 2017-2021. Bibliometric analysis has been conducted to investigate the main journals, conferences, authors and countries. Finally, text mining with VosViewer has been conducted to extract the main topics, which are: (i): Technologies; Education; (ii) e-Commerce; Retailing; (iii) Tourism; User Experience; (iv) Consumers; Purchase. The results indicate that the research of augmented reality in business and economics focused on various applications, among which education is one of the emerging ones

Enhancing trustability in MMOGs environments

Massively Multiplayer Online Games (MMOGs; e.g., World of Warcraft), virtual worlds (VW; e.g., Second Life), social networks (e.g., Facebook) strongly demand for more autonomic, security, and trust mechanisms in a way similar to humans do in the real life world. As known, this is a difficult matter because trusting in humans and organizations depends on the perception and experience of each individual, which is difficult to quantify or measure. In fact, these societal environments lack trust mechanisms similar to those involved in humans-to-human interactions. Besides, interactions mediated by compute devices are constantly evolving, requiring trust mechanisms that keep the pace with the developments and assess risk situations. In VW/MMOGs, it is widely recognized that users develop trust relationships from their in-world interactions with others. However, these trust relationships end up not being represented in the data structures (or databases) of such virtual worlds, though they sometimes appear associated to reputation and recommendation systems. In addition, as far as we know, the user is not provided with a personal trust tool to sustain his/her decision making while he/she interacts with other users in the virtual or game world. In order to solve this problem, as well as those mentioned above, we propose herein a formal representation of these personal trust relationships, which are based on avataravatar interactions. The leading idea is to provide each avatar-impersonated player with a personal trust tool that follows a distributed trust model, i.e., the trust data is distributed over the societal network of a given VW/MMOG. Representing, manipulating, and inferring trust from the user/player point of view certainly is a grand challenge. When someone meets an unknown individual, the question is “Can I trust him/her or not?”. It is clear that this requires the user to have access to a representation of trust about others, but, unless we are using an open source VW/MMOG, it is difficult —not to say unfeasible— to get access to such data. Even, in an open source system, a number of users may refuse to pass information about its friends, acquaintances, or others. Putting together its own data and gathered data obtained from others, the avatar-impersonated player should be able to come across a trust result about its current trustee. For the trust assessment method used in this thesis, we use subjective logic operators and graph search algorithms to undertake such trust inference about the trustee. The proposed trust inference system has been validated using a number of OpenSimulator (opensimulator.org) scenarios, which showed an accuracy increase in evaluating trustability of avatars. Summing up, our proposal aims thus to introduce a trust theory for virtual worlds, its trust assessment metrics (e.g., subjective logic) and trust discovery methods (e.g., graph search methods), on an individual basis, rather than based on usual centralized reputation systems. In particular, and unlike other trust discovery methods, our methods run at interactive rates.MMOGs (Massively Multiplayer Online Games, como por exemplo, World of Warcraft), mundos virtuais (VW, como por exemplo, o Second Life) e redes sociais (como por exemplo, Facebook) necessitam de mecanismos de confiança mais autónomos, capazes de assegurar a segurança e a confiança de uma forma semelhante à que os seres humanos utilizam na vida real. Como se sabe, esta não é uma questão fácil. Porque confiar em seres humanos e ou organizações depende da percepção e da experiência de cada indivíduo, o que é difícil de quantificar ou medir à partida. Na verdade, esses ambientes sociais carecem dos mecanismos de confiança presentes em interacções humanas presenciais. Além disso, as interacções mediadas por dispositivos computacionais estão em constante evolução, necessitando de mecanismos de confiança adequados ao ritmo da evolução para avaliar situações de risco. Em VW/MMOGs, é amplamente reconhecido que os utilizadores desenvolvem relações de confiança a partir das suas interacções no mundo com outros. No entanto, essas relações de confiança acabam por não ser representadas nas estruturas de dados (ou bases de dados) do VW/MMOG específico, embora às vezes apareçam associados à reputação e a sistemas de reputação. Além disso, tanto quanto sabemos, ao utilizador não lhe é facultado nenhum mecanismo que suporte uma ferramenta de confiança individual para sustentar o seu processo de tomada de decisão, enquanto ele interage com outros utilizadores no mundo virtual ou jogo. A fim de resolver este problema, bem como os mencionados acima, propomos nesta tese uma representação formal para essas relações de confiança pessoal, baseada em interacções avatar-avatar. A ideia principal é fornecer a cada jogador representado por um avatar uma ferramenta de confiança pessoal que segue um modelo de confiança distribuída, ou seja, os dados de confiança são distribuídos através da rede social de um determinado VW/MMOG. Representar, manipular e inferir a confiança do ponto de utilizador/jogador, é certamente um grande desafio. Quando alguém encontra um indivíduo desconhecido, a pergunta é “Posso confiar ou não nele?”. É claro que isto requer que o utilizador tenha acesso a uma representação de confiança sobre os outros, mas, a menos que possamos usar uma plataforma VW/MMOG de código aberto, é difícil — para não dizer impossível — obter acesso aos dados gerados pelos utilizadores. Mesmo em sistemas de código aberto, um número de utilizadores pode recusar partilhar informações sobre seus amigos, conhecidos, ou sobre outros. Ao juntar seus próprios dados com os dados obtidos de outros, o utilizador/jogador representado por um avatar deve ser capaz de produzir uma avaliação de confiança sobre o utilizador/jogador com o qual se encontra a interagir. Relativamente ao método de avaliação de confiança empregue nesta tese, utilizamos lógica subjectiva para a representação da confiança, e também operadores lógicos da lógica subjectiva juntamente com algoritmos de procura em grafos para empreender o processo de inferência da confiança relativamente a outro utilizador. O sistema de inferência de confiança proposto foi validado através de um número de cenários Open-Simulator (opensimulator.org), que mostrou um aumento na precisão na avaliação da confiança de avatares. Resumindo, a nossa proposta visa, assim, introduzir uma teoria de confiança para mundos virtuais, conjuntamente com métricas de avaliação de confiança (por exemplo, a lógica subjectiva) e em métodos de procura de caminhos de confiança (com por exemplo, através de métodos de pesquisa em grafos), partindo de uma base individual, em vez de se basear em sistemas habituais de reputação centralizados. Em particular, e ao contrário de outros métodos de determinação do grau de confiança, os nossos métodos são executados em tempo real

Drones, Augmented Reality and Virtual Reality Journalism: Mapping Their Role in Immersive News Content

Drones are shaping journalism in a variety of ways including in the production of immersive news content. This article identifies, describes and analyzes, or maps out, four areas in which drones are impacting immersive news content. These include: 1) enabling the possibility of providing aerial perspective for first-person perspective flight-based immersive journalism experiences; 2) providing geo-tagged audio and video for flight-based immersive news content; 3) providing the capacity for both volumetric and 360 video capture; and 4) generating novel content types or content based on data acquired from a broad range of sensors beyond the standard visible light captured via video cameras; these may be a central generator of unique experiential media content beyond visual flight-based news content

Low-Fare Flights Across the Atlantic: Impact of Low-Cost, Long-Haul, Trans-Atlantic Flights on Passenger Choice of Carrier

Full-service carriers (FSCs) have long ruled the trans-Atlantic market, due to the absence of low fare competition, which has kept airfares high. However, renewed interest in lowcost, long-haul (LCLH) flights was prompted by efficient aircraft, low fuel prices, liberalization of air markets, and low-cost carriers’ growth opportunities. Since 2013, multiple LCLH carriers have commenced trans-Atlantic operations, and their market share has grown to 8%. In response, FSCs are establishing their own LCLH subsidiaries and/or introducing basic economy airfares to more effectively compete in the trans-Atlantic market. The purpose of this dissertation was to further the understanding of LCLH and FSC passengers in the trans-Atlantic market by determining what demographics and airline service attributes affected their choice of carrier type, and also what impacted their willingness to switch carrier type and the amount they were willing to pay to do so. A total of 1,412 trans-Atlantic economy and premium economy passengers were surveyed at Los Angeles (LAX) and Seattle–Tacoma (SEA) Airports, which included those who had flown an LCLH (n = 787) or an FSC (n = 625). Exploratory and confirmatory factor analyses were performed to develop a factor structure for passenger travel experience attributes, which were identified as: Operations, Comfort, Onboarding, Service, and Flight Schedule, along with a variable, Airfare. Binary logistic regression was used to determine the variables/factors that affected passenger choice of LCLH or FSC. Younger passengers preferred LCLH carriers, whereas older passengers preferred FSCs. Airfare was the most important predictor of choice of carrier type, followed by Comfort, Service, and Flight Schedule. Satisfaction with Airfare and Comfort were associated with choice of an LCLH carrier, whereas satisfaction with Service and Flight Schedule were associated with choice of an FSC. Willingness to switch from an LCLH to an FSC was evaluated, with 55% of respondents indicating they would remain loyal, and 45% of them being willing to switch to an FSC. Decision tree analyses were utilized to show the relationships between variables/factors that were relevant for passenger switching decisions. The variables/factors that affected an LCLH passenger’s willingness to switch to an FSC were: Airfare, Income, Education, Age, Gender, Comfort, and Operations. Binary logistic regression was utilized to determine that Age, Education, and Cabin Class affected willingness to pay more to switch to an FSC. Willingness to switch from an FSC to an LCLH was evaluated, with 76% of respondents indicating they would remain loyal, and 24% being willing to switch to an LCLH carrier; with a decision tree showing that Gender, Service, Airfare, and Onboarding affected this decision. Binary logistic regression was utilized to determine that Airfare, Nonstop Flights, and Courtesy and Responsiveness affected willingness to pay less to switch to an LCLH carrier. This research has demonstrated that often overlooked aspects of air travel, such as comfort and service, are vitally important to long-haul passengers. Furthermore, both LCLH and FSCs have a place in the trans-Atlantic market, as some passengers prefer a no frills LCLH offering; whereas other passengers prefer an all-inclusive FSC offering

Multi-party holomeetings: toward a new era of low-cost volumetric holographic meetings in virtual reality

© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Fueled by advances in multi-party communications, increasingly mature immersive technologies being adopted, and the COVID-19 pandemic, a new wave of social virtual reality (VR) platforms have emerged to support socialization, interaction, and collaboration among multiple remote users who are integrated into shared virtual environments. Social VR aims to increase levels of (co-)presence and interaction quality by overcoming the limitations of 2D windowed representations in traditional multi-party video conferencing tools, although most existing solutions rely on 3D avatars to represent users. This article presents a social VR platform that supports real-time volumetric holographic representations of users that are based on point clouds captured by off-the-shelf RGB-D sensors, and it analyzes the platform’s potential for conducting interactive holomeetings (i.e., holoconferencing scenarios). This work evaluates such a platform’s performance and readiness for conducting meetings with up to four users, and it provides insights into aspects of the user experience when using single-camera and low-cost capture systems in scenarios with both frontal and side viewpoints. Overall, the obtained results confirm the platform’s maturity and the potential of holographic communications for conducting interactive multi-party meetings, even when using low-cost systems and single-camera capture systems in scenarios where users are sitting or have a limited translational movement along the X, Y, and Z axes within the 3D virtual environment (commonly known as 3 Degrees of Freedom plus, 3DoF+).The authors would like to thank the members of the EU H2020 VR-Together consortium for their valuable contributions, especially Marc Martos and Mohamad Hjeij for their support in developing and evaluating tasks. This work has been partially funded by: the EU’s Horizon 2020 program, under agreement nº 762111 (VR-Together project); by ACCIÓ (Generalitat de Catalunya), under agreement COMRDI18-1-0008 (ViVIM project); and by Cisco Research and the Silicon Valley Community Foundation, under the grant Extended Reality Multipoint Control Unit (ID: 1779376). The work by Mario Montagud has been additionally funded by Spain’s Agencia Estatal de Investigación under grant RYC2020-030679-I (AEI / 10.13039/501100011033) and by Fondo Social Europeo. The work of David Rincón was supported by Spain’s Agencia Estatal de Investigación within the Ministerio de Ciencia e Innovación under Project PID2019-108713RB-C51 MCIN/AEI/10.13039/501100011033.Peer ReviewedPostprint (published version

#InstagramELE: Learning Spanish Through a Social Network

Social networking (SN) tools have the potential to contribute to language learning because they promote linguistic interactions in person-to-person communication, increasing the opportunities to process input in the L2, engaging learners in negotiation of meaning and requiring learners to produce L2 output, as proposed in the interactionist theory by Long (1985, 1996). These virtual personal connections with other learners and language experts around the world could provide a rich environment for sociocultural language exchanges (following the principles of the sociocultural approach proposed by Lantolf, 2002, based on the work of Vygotsky, 1978) that may increase motivation for learning, develop L2 sociopragmatic competence and learners’ online identities through expression, interaction and community building, as researchers have found (see Lomicka & Lord, 2010, for a summary of SN research). In addition, social networking is also believed to promote autonomous learning because the learners take responsibility of their own learning process in socially interactive environments by exploring the L2 through communication, collaboration and experimentation (Blake, 2013). Due to the popularity of social networking sites such as Instagram, Facebook and Twitter, language teachers have explored different ways to integrate them into the language education curriculum. This presentation will describe the #InstagramELE global learning community of Spanish learners and teachers. Instagram involves sharing photos and images that lend themselves to the development of descriptive language. The use of visual elements often leads nicely into cultural issues and development of cultural awareness and competence. We will describe an instructional task, the #instragramELE challenge, that could be a vehicle for the acquisition of new vocabulary, cultural topics, and the development of reading and writing expression. This challenge has already accumulated more than 30000 tagged photos, from all over the world. We will also discuss its benefits and challenges as an autonomous learning tool and some ideas for classroom implementation and teacher training