39 research outputs found

    mTag - Architecture for Discovering Location Specific Mobile Web Services Using RFID and Its Evaluation with Two Case Studies

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    This paper introduces mTag, a distributed event-driven architecture for discovering location specific mobile web services. Service discovery is initiated by touching a fixed RFID reader with a mobile passive RFID tag attached e.g. to a phone, which results in information of available services being pushed to user’s preferred device. We present a deployment proposal and prototype implementation, which is evaluated in form of two case studies in the true environment of use. The case studies show that mTag provides a promising approach for service discovery with mobile devices. 1

    Tangible user interfaces : past, present and future directions

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    In the last two decades, Tangible User Interfaces (TUIs) have emerged as a new interface type that interlinks the digital and physical worlds. Drawing upon users' knowledge and skills of interaction with the real non-digital world, TUIs show a potential to enhance the way in which people interact with and leverage digital information. However, TUI research is still in its infancy and extensive research is required in or- der to fully understand the implications of tangible user interfaces, to develop technologies that further bridge the digital and the physical, and to guide TUI design with empirical knowledge. This paper examines the existing body of work on Tangible User In- terfaces. We start by sketching the history of tangible user interfaces, examining the intellectual origins of this ïŹeld. We then present TUIs in a broader context, survey application domains, and review frame- works and taxonomies. We also discuss conceptual foundations of TUIs including perspectives from cognitive sciences, phycology, and philoso- phy. Methods and technologies for designing, building, and evaluating TUIs are also addressed. Finally, we discuss the strengths and limita- tions of TUIs and chart directions for future research

    User Interface Migration of Web Applications with Task continuity and Platform Adaptation Support

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    This thesis shows the work undertaken for supporting user interface migration of web applications. Interface migration occurs when a user interacting with an application switches to a different device and the application interface is transferred onto the new device. Migration must be supported by a platform aware system able to perform interface adaptation that keeps into account the different features of the devices involved, in order to keep the interface usability. Beside adaptation, continuity is the main matter. Once the interface migrates onto a new device, the interaction can be continued without having to restart the application from the beginning. Different types of migration can occur and supporting them poses different level of difficulty. This thesis analyses the various types of migration and describes the client-server architecture implemented for supporting all of them. The thesis shows how the migration service evolved starting from a first core of basic functionalities supporting the easiest situation to the most challenging one

    Event and map content personalisation in a mobile and context-aware environment.

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    Effective methods for information access are of the greatest importance for our modern lives “ particularly with respect to handheld devices. Personalisation is one such method which models a users characteristics to deliver content more focused to the users needs. The emerging area of sophisticated mobile computing devices has started to inspire new forms of personalised systems that include aspects of the persons contextual environment. This thesis seeks to understand the role of personalisation and context, to evaluate the effectiveness of context for content personalisation and to investigate the event and map content domain for mobile usage. The work presented in this thesis has three parts: The first part is a user experiment on context that investigated the contextual attributes of time, location and interest, with respect to participants perception of their usefulness. Results show highly dynamic and interconnected effects of context on participants usefulness ratings. In the second part, these results were applied to create a predictive model of context that was related to attribution theory and then combined with an information retrieval score to create a weighted personalisation model. In the third part of this work, the personalisation model was applied in a mobile experiment. Participants solved situational search tasks using a (i) non-personalized and a (ii) personalized mobile information system, and rating entertainment events based on usefulness. Results showed that the personalised system delivered about 20% more useful content to the mobile user than the non-personalised system, with some indication for reduced search effort in terms of time and the amount of queries per task. The work presented provides evidence for the promising potential of context to facilitate personalised information delivery to users of mobile devices. Overall, it serves as an example of an investigation into the effectiveness of context from multiple angles and provides a potential link to some of the aspects of psychology as a potential source for a deeper understanding of contextual processes in humans

    Integrating Haptic Feedback into Mobile Location Based Services

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    Haptics is a feedback technology that takes advantage of the human sense of touch by applying forces, vibrations, and/or motions to a haptic-enabled device such as a mobile phone. Historically, human-computer interaction has been visual - text and images on the screen. Haptic feedback can be an important additional method especially in Mobile Location Based Services such as knowledge discovery, pedestrian navigation and notification systems. A knowledge discovery system called the Haptic GeoWand is a low interaction system that allows users to query geo-tagged data around them by using a point-and-scan technique with their mobile device. Haptic Pedestrian is a navigation system for walkers. Four prototypes have been developed classified according to the user’s guidance requirements, the user type (based on spatial skills), and overall system complexity. Haptic Transit is a notification system that provides spatial information to the users of public transport. In all these systems, haptic feedback is used to convey information about location, orientation, density and distance by use of the vibration alarm with varying frequencies and patterns to help understand the physical environment. Trials elicited positive responses from the users who see benefit in being provided with a “heads up” approach to mobile navigation. Results from a memory recall test show that the users of haptic feedback for navigation had better memory recall of the region traversed than the users of landmark images. Haptics integrated into a multi-modal navigation system provides more usable, less distracting but more effective interaction than conventional systems. Enhancements to the current work could include integration of contextual information, detailed large-scale user trials and the exploration of using haptics within confined indoor spaces

    The Aalborg Survey / Part 4 - Literature Study:Diverse Urban Spaces (DUS)

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    Human-Machine Communication: Complete Volume 5. Gender and Human-Machine Communication

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    This is the complete volume of HMC Volume

    Transforming our World through Universal Design for Human Development

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    An environment, or any building product or service in it, should ideally be designed to meet the needs of all those who wish to use it. Universal Design is the design and composition of environments, products, and services so that they can be accessed, understood and used to the greatest extent possible by all people, regardless of their age, size, ability or disability. It creates products, services and environments that meet people’s needs. In short, Universal Design is good design. This book presents the proceedings of UD2022, the 6th International Conference on Universal Design, held from 7 - 9 September 2022 in Brescia, Italy.The conference is targeted at professionals and academics interested in the theme of universal design as related to the built environment and the wellbeing of users, but also covers mobility and urban environments, knowledge, and information transfer, bringing together research knowledge and best practice from all over the world. The book contains 72 papers from 13 countries, grouped into 8 sections and covering topics including the design of inclusive natural environments and urban spaces, communities, neighborhoods and cities; housing; healthcare; mobility and transport systems; and universally- designed learning environments, work places, cultural and recreational spaces. One section is devoted to universal design and cultural heritage, which had a particular focus at this edition of the conference. The book reflects the professional and disciplinary diversity represented in the UD movement, and will be of interest to all those whose work involves inclusive design

    Multimodal interaction with mobile devices : fusing a broad spectrum of modality combinations

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    This dissertation presents a multimodal architecture for use in mobile scenarios such as shopping and navigation. It also analyses a wide range of feasible modality input combinations for these contexts. For this purpose, two interlinked demonstrators were designed for stand-alone use on mobile devices. Of particular importance was the design and implementation of a modality fusion module capable of combining input from a range of communication modes like speech, handwriting, and gesture. The implementation is able to account for confidence value biases arising within and between modalities and also provides a method for resolving semantically overlapped input. Tangible interaction with real-world objects and symmetric multimodality are two further themes addressed in this work. The work concludes with the results from two usability field studies that provide insight on user preference and modality intuition for different modality combinations, as well as user acceptance for anthropomorphized objects.Diese Dissertation prĂ€sentiert eine multimodale Architektur zum Gebrauch in mobilen UmstĂ€nden wie z. B. Einkaufen und Navigation. Außerdem wird ein großes Gebiet von möglichen modalen Eingabekombinationen zu diesen UmstĂ€nden analysiert. Um das in praktischer Weise zu demonstrieren, wurden zwei teilweise gekoppelte VorfĂŒhrungsprogramme zum 'stand-alone'; Gebrauch auf mobilen GerĂ€ten entworfen. Von spezieller Wichtigkeit war der Entwurf und die AusfĂŒhrung eines ModalitĂ€ts-fusion Modul, das die Kombination einer Reihe von Kommunikationsarten wie Sprache, Handschrift und Gesten ermöglicht. Die AusfĂŒhrung erlaubt die VerĂ€nderung von ZuverlĂ€ssigkeitswerten innerhalb einzelner ModalitĂ€ten und außerdem ermöglicht eine Methode um die semantisch ĂŒberlappten Eingaben auszuwerten. Wirklichkeitsnaher Dialog mit aktuellen Objekten und symmetrische MultimodalitĂ€t sind zwei weitere Themen die in dieser Arbeit behandelt werden. Die Arbeit schließt mit Resultaten von zwei Feldstudien, die weitere Einsicht erlauben ĂŒber die bevorzugte Art verschiedener ModalitĂ€tskombinationen, sowie auch ĂŒber die Akzeptanz von anthropomorphisierten Objekten

    Multimodal interaction with mobile devices : fusing a broad spectrum of modality combinations

    Get PDF
    This dissertation presents a multimodal architecture for use in mobile scenarios such as shopping and navigation. It also analyses a wide range of feasible modality input combinations for these contexts. For this purpose, two interlinked demonstrators were designed for stand-alone use on mobile devices. Of particular importance was the design and implementation of a modality fusion module capable of combining input from a range of communication modes like speech, handwriting, and gesture. The implementation is able to account for confidence value biases arising within and between modalities and also provides a method for resolving semantically overlapped input. Tangible interaction with real-world objects and symmetric multimodality are two further themes addressed in this work. The work concludes with the results from two usability field studies that provide insight on user preference and modality intuition for different modality combinations, as well as user acceptance for anthropomorphized objects.Diese Dissertation prĂ€sentiert eine multimodale Architektur zum Gebrauch in mobilen UmstĂ€nden wie z. B. Einkaufen und Navigation. Außerdem wird ein großes Gebiet von möglichen modalen Eingabekombinationen zu diesen UmstĂ€nden analysiert. Um das in praktischer Weise zu demonstrieren, wurden zwei teilweise gekoppelte VorfĂŒhrungsprogramme zum \u27stand-alone\u27; Gebrauch auf mobilen GerĂ€ten entworfen. Von spezieller Wichtigkeit war der Entwurf und die AusfĂŒhrung eines ModalitĂ€ts-fusion Modul, das die Kombination einer Reihe von Kommunikationsarten wie Sprache, Handschrift und Gesten ermöglicht. Die AusfĂŒhrung erlaubt die VerĂ€nderung von ZuverlĂ€ssigkeitswerten innerhalb einzelner ModalitĂ€ten und außerdem ermöglicht eine Methode um die semantisch ĂŒberlappten Eingaben auszuwerten. Wirklichkeitsnaher Dialog mit aktuellen Objekten und symmetrische MultimodalitĂ€t sind zwei weitere Themen die in dieser Arbeit behandelt werden. Die Arbeit schließt mit Resultaten von zwei Feldstudien, die weitere Einsicht erlauben ĂŒber die bevorzugte Art verschiedener ModalitĂ€tskombinationen, sowie auch ĂŒber die Akzeptanz von anthropomorphisierten Objekten
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