1,018 research outputs found

    Social networking through consumer electronics

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    Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2008.Includes bibliographical references (p. 93-95).This thesis explores how the merging of ubiquitous consumer electronics and the sociable web improve the user experience of these devices, increase the functionality of both, and help distribute content in a more sociable way. The project will consist of one well fleshed out principal application: a digital video recorder (manufactured by Motorola, running OCAP) connected to the Facebook social network. By connecting these two technologies, the user can now automatically watch the shows her friends like and are willing to report to the social network; in return, the user transmits her viewing data back to the social network.Mariana Cristina Baca Del Rosario.S.M

    Modeling usage of an online research community

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    Although online communities have been thought of as a new way for collaboration across geographic boundaries in the scientific world, they have a problem attracting people to keep visiting. The main purpose of this study is to understand how people behave in such communities, and to build and evaluate tools to stimulate engagement in a research community. These tools were designed based on a research framework of factors that influence online participation and relationship development. There are two main objectives for people to join an online community, information sharing and interpersonal relationship development, such as friends or colleagues. The tools designed in this study are to serve both information sharing and interpersonal relationship development needs. The awareness tool is designed to increase the sense of a community and increase the degree of social presence of members in the community. The recommender system is designed to help provide higher quality and personalized information to community members. It also helps to match community members into subgroups based on their interests. The designed tools were implemented in a field site - the Asynchronous Learning Networks (ALN) Research community. A longitudinal field study was used to evaluate the effectiveness of the designed tools. This research explored people\u27s behavior inside a research community by analyzing web server logs. The results show that although there are not many interactions in the community space, the WebCenter has been visited extensively by its members. There are over 2,000 hits per day on average and over 5,000 article accesses during the observation period. This research also provided a framework to identify factors that affect people\u27s engagement in an online community. The research framework was tested using the PLS modeling method with online survey responses. The results show that perceived usefulness performs a very significant role in members\u27 intention to continue using the system and their perceived preliminary networking. The results also show that the quality of the content of the system is a strong indicator for both perceived usefulness of the community space and perceived ease of use of the community system. Perceived ease of use did not show a strong correlation with intention to continue use which was consistent with other studies of Technology Acceptance Model (TAM). For the ALN research community, this online community helps its members to broaden their contacts, improve the quality and quantity of their research, and increase the dissemination of knowledge among community members

    Enhancing fan experience during live sports broadcasts through second screen applications

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    When sports fans attend live sports events, they usually engage in social experiences with friends, family members and other fans at the venue sharing the same affiliation. However, fans watching the same event through a live television broadcast end up not feeling so emotionally connected with the athletes and other fans as they would if they were watching it live, together with thousands of other fans. With this in mind, we seek to create mobile applications that deliver engaging social experiences involving remote fans watching live broadcasted sports events. Taking into account the growing use of mobile devices when watching TV broadcasts, these mobile applications explore the second screen concept, which allows users to interact with content that complements the TV broadcast. Within this context, we present a set of second screen application prototypes developed to test our concepts, the corresponding user studies and results, as well as suggestions on how to apply the prototypes’ concepts not only in different sports, but also during TV shows and electronic sports. Finally, we also present the challenges we faced and the guidelines we followed during the development and evaluation phases, which may give a considerable contribution to the development of future second screen applications for live broadcasted events

    Coping with the inheritance of COVID-19: the role of new interactive technologies to enhance user experience in different contexts of use

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    The COVID-19 pandemic has upset the habits of people and various sectors of society, including training, entertainment, and retail. These sectors have been forced to adapt to abnormal situations such as social distancing, remote work, and online entertainment. The pandemic has significantly transformed the training field, leading to the closure of many in-person instruction centers and a shift toward online education courses, which can be less effective. In addition, the entertainment industry has been heavily transformed by social distancing, resulting in the cancellation of many live events and the closure of several cinemas. This has increased demand for online entertainment options, such as streaming services and virtual events. Finally, the restrictions imposed by the COVID-19 pandemic substantially impacted physical stores and fairs, suspending exhibitions for more than two years. This has further driven consumers to rely on e-commerce to fulfill their purchasing and companies to increasingly take advantage of new technologies such as augmented reality. In this suddenly disrupted scenario, new technologies have the potential to fill the gap generated by the pandemic, functioning as an interactive bridge to connect people. This Ph.D. thesis explored the potential of interactive technologies in mitigating the challenges posed by the COVID-19 pandemic in various contexts of use in the above-mentioned areas. Specifically, three lines of research were investigated by conducting different studies using a mixed approach in the Human-Computer Interaction field. The first research line focused on the study of immersive virtual reality training, with a particular interest in flood emergencies, a growing phenomenon. The goal was to implement engaging and efficient training for citizens that live near rivers through a human-centric design approach. The second line of research explored innovative ways to improve social interaction and collaboration in the entertainment sector, highlighting guidelines for the design of shared streaming experiences. In particular, three different communication modalities were studied during group viewing of an interactive film on a streaming platform. Finally, the third research line focused on the retail sector. On the one hand, the focus consisted of understanding which aspects of the 3D web and AR technology are helpful for supporting small businesses and trade fairs. On the other hand, the focus was to investigate how to support consumers during an AR shopping experience when interacting with 3D virtual products of different sizes. Overall, this project provides suggestions and guidelines for designing systems that can both increasingly connect people at a distance and offer new hybrid worlds. In addition, this project expands state-of-the-art related to interactive technologies and offers generalizable results outside the crisis created by COVID-19. These technologies, now increasingly integrated into everyday life, can be a tool for empowerment and resilience, improving people's lives.The COVID-19 pandemic has upset the habits of people and various sectors of society, including training, entertainment, and retail. These sectors have been forced to adapt to abnormal situations such as social distancing, remote work, and online entertainment. The pandemic has significantly transformed the training field, leading to the closure of many in-person instruction centers and a shift toward online education courses, which can be less effective. In addition, the entertainment industry has been heavily transformed by social distancing, resulting in the cancellation of many live events and the closure of several cinemas. This has increased demand for online entertainment options, such as streaming services and virtual events. Finally, the restrictions imposed by the COVID-19 pandemic substantially impacted physical stores and fairs, suspending exhibitions for more than two years. This has further driven consumers to rely on e-commerce to fulfill their purchasing and companies to increasingly take advantage of new technologies such as augmented reality. In this suddenly disrupted scenario, new technologies have the potential to fill the gap generated by the pandemic, functioning as an interactive bridge to connect people. This Ph.D. thesis explored the potential of interactive technologies in mitigating the challenges posed by the COVID-19 pandemic in various contexts of use in the above-mentioned areas. Specifically, three lines of research were investigated by conducting different studies using a mixed approach in the Human-Computer Interaction field. The first research line focused on the study of immersive virtual reality training, with a particular interest in flood emergencies, a growing phenomenon. The goal was to implement engaging and efficient training for citizens that live near rivers through a human-centric design approach. The second line of research explored innovative ways to improve social interaction and collaboration in the entertainment sector, highlighting guidelines for the design of shared streaming experiences. In particular, three different communication modalities were studied during group viewing of an interactive film on a streaming platform. Finally, the third research line focused on the retail sector. On the one hand, the focus consisted of understanding which aspects of the 3D web and AR technology are helpful for supporting small businesses and trade fairs. On the other hand, the focus was to investigate how to support consumers during an AR shopping experience when interacting with 3D virtual products of different sizes. Overall, this project provides suggestions and guidelines for designing systems that can both increasingly connect people at a distance and offer new hybrid worlds. In addition, this project expands state-of-the-art related to interactive technologies and offers generalizable results outside the crisis created by COVID-19. These technologies, now increasingly integrated into everyday life, can be a tool for empowerment and resilience, improving people's lives

    Real-time expressive internet communications

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    This research work "Real-time Expressive Internet Communications" focuses on two subjects: One is the investigation of methods of automatic emotion detection and visualisation under real-time Internet communication environment, the other is the analysis of the influences of presenting visualised emotion expressivei mages to Internet users. To detect emotion within Internet communication, the emotion communication process over the Internet needs to be examined. An emotion momentum theory was developed to illustrate the emotion communication process over the Internet communication. It is argued in this theory that an Internet user is within a certain emotion state, the emotion state is changeable by internal and external stimulus (e.g. a received chat message) and time; stimulus duration and stimulus intensity are the major factors influencing the emotion state. The emotion momentum theory divides the emotions expressed in Internet communication into three dimensions: emotion category, intensity and duration. The emotion momentum theory was implemented within a prototype emotion extraction engine. The emotion extraction engine can analyse input text in an Internet chat environment, detect and extract the emotion being communicated, and deliver the parameters to invoke an appropriate expressive image on screen to the every communicating user's display. A set of experiments were carried out to test the speed and the accuracy of the emotion extraction engine. The results of the experiments demonstrated an acceptable performance of the emotion extraction engine. The next step of this study was to design and implement an expressive image generator that generates expressive images from a single neutral facial image. Generated facial images are classified into six categories, and for each category, three different intensities were achieved. Users need to define only six control points and three control shapes to synthesise all the expressive images and a set of experiments were carried out to test the quality of the synthesised images. The experiment results demonstrated an acceptable recognition rate of the generated facial expression images. With the emotion extraction engine and the expressive image generator,a test platform was created to evaluate the influences of emotion visualisation in the Internet communication context. The results of a series of experiments demonstratedthat emotion visualisation can enhancethe users' perceived performance and their satisfaction with the interfaces. The contributions to knowledge fall into four main areas; firstly, the emotion momentum theory that is proposed to illustrate the emotion communication process over the Internet; secondly, the innovations built into an emotion extraction engine, which senses emotional feelings from textual messages input by Internet users; thirdly, the innovations built into the expressive image generator, which synthesises facial expressions using a fast approach with a user friendly interface; and fourthly, the identification of the influence that the visualisation of emotion has on human computer interaction

    Mastery and the mobile future of massively multiplayer games

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    Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Comparative Media Studies, 2007.Includes bibliographical references (p. 64-66).What game design opportunities do we create when we extend massively multiplayer online games (MMOs) to cell phones? MMOs allow us to create representations of our own increasing mastery, and mobile gives us better access to this mastery and allows us to integrate it more fully into the ways we see ourselves. MMOs motivate mastery by making that mastery personally and socially relevant, and visibly showing it increase. Virtual worlds that make players feel physically and socially present increase motivation to achieve mastery. MMOs that convince players their avatars represent some aspect of their personalities increase motivation to invest in and experiment with different constructions of self. I apply these principles to an analysis of two games: Labyrinth, a game I helped create, and World of Warcraft, the current leading MMO. With Labyrinth, I explain the design decisions we made and their impact. With World of Warcraft, I described how altering the design could accommodate mobile play and better motivate increasing mastery.by Daniel Roy.S.M

    Distributed software design for collaborative learning system over the Internet

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    Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.Includes bibliographical references (leaves 166-168).by Christine Hui Su.S.B.and M.Eng

    Bridging the gap between human and machine trust : applying methods of user-centred design and usability to computer security

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    This work presents methods for improving the usability of security. The work focuses on trust as part of computer security. Methods of usability and user-centred design present an essential starting point for the research. The work uses the methods these fields provide to investigate differences between machine and human trust, as well as how the technical expressions of trust could be made more usable by applying these methods. The thesis is based on nine publications, which present various possibilities to research trust with user-centric methods. The publications proceed chronologically and logically from the first user interviews about trust, trusting attitudes and behaviours in general to the actual design and usability testing of user interfaces for security applications, finally presenting the outcomes and conclusions of the research. The work also presents a review of relevant previous work in the area, concentrating on work done in the fields of usability and user-centred design. The work is of cross-disciplinary nature, falling into the areas of human-computer interaction, computer science and telecommunications. The ultimate goal of the conducted research has been to find out 1) how trust is to be understood in this context; 2) what methods can be used to gain insight into trust thus defined; and, finally, 3) what means can be used to create trust in the end users in online situations, where trust is needed. The work aims at providing insight into how trust can be studied with the methods provided by user-centred design and usability. Further, it investigates how to take understanding of trust formation in humans into account when attempting to design trust-inducing systems and applications. The work includes an analysis and comparison of the methods used: what kinds of methods to study trust exist in the field of usability and user-centred design. Further, it is evaluated, what kind of results and when can be reached with the different methods available, by applying a variety of these methods. Recommendations for the appropriate application of these methods when studying the various parts of trust is one of the outcomes. The results received with the methods used have also been compared with results received by others by applying alternative methods to the same research questions. On a conceptual level, the work contains an analysis of the concept of trust. It also contains a brief investigation into both technical and humane ways to express trust, with a comparison between the two

    3D virtual world as an enabler for a hybrid virtual-physical situated civic engagement platform

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    Abstract. User participatory design concept in the domain of urban computing has been playing a significant role around the industry and research area since it first came out. Many researchers and organisations involved in this strive to reach out a larger diversity of people so they could build urban environment better supportive and salubrious towards the community members. In this regard, we created a common ground platform for sharing opinions of people within the society by delivering a free speech from the public place. The installation is evaluated in our study dedicated in the context of human psychological sensation systems in the virtual environment, tries to find the relation between the performance of the task (giving a speech) carried out in a virtual space and the user’s degree of presence and immersion. The results of our series of field experiments show that there is a positive association between the system user interface and the quality of work, though, we could not extend it to the statement which saying the superior performance is the direct result of high immersion and presence

    Witnessing the Web: The Rhetoric of American E-Vangelism and Persuasion Online

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    From the distribution of religious tracts at Ellis Island and Billy Sunday’s radio messages to televised recordings of the Billy Graham Crusade and Pat Robertson’s 700 Club, American evangelicals have long made a practice of utilizing mass media to spread the Gospel. Most recently, these Christian evangelists have gone online. As a contribution to scholarship in religious rhetoric and media studies, this dissertation offers evangelistic websites as a case study into the ways persuasion is carried out on the Internet. Through an analysis of digital texts—including several evangelical home pages, a chat room, discussion forums, and a virtual church—I investigate how conversion is encouraged via web design and virtual community as well as how the Internet medium impacts the theology and rhetorical strategies of web evangelists. I argue for “persuasive architecture” and “persuasive communities”—web design on the fundamental level of interface layout and tightly-controlled restrictions on discourse and community membership—as key components of this strategy. In addition, I argue that evangelical ideology has been influenced by the web medium and that a “digital reformation” is taking place in the church, one centered on a move away from the Prosperity Gospel of televangelism to a Gospel focused on God as divine problem-solver and salvation as an uncomplicated, individualized, and instantaneously-rewarding experience, mimicking Web 2.0 users’ desire for quick, timely, and effective answers to all queries. This study simultaneously illuminates the structural and fundamental levels of design through which the web persuades as well as how—as rhetoricians from Plato’s King Thamus to Marshall McLuhan have recognized—media inevitably shapes the message and culture of its users
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