1,610 research outputs found
Remote presence: supporting deictic gestures through a handheld multi-touch device
This thesis argues on the possibility of supporting deictic gestures through handheld multi-touch devices in remote presentation scenarios. In [1], Clark distinguishes indicative techniques of placing-for and directing-to, where placing-for refers to placing a referent into the addresseeâs attention, and directing-to refers to directing the addresseeâs attention towards a referent. Keynote, PowerPoint, FuzeMeeting and others support placing-for efficiently with slide transitions, and animations, but support limited to none directing-to. The traditional âpointing featureâ present in some presentation tools comes as a virtual laser pointer or mouse cursor. [12, 13] have shown that the mouse cursor and laser pointer offer very little informational expressiveness and do not do justice to human communicative gestures. In this project, a prototype application was implemented for the iPad in order to explore, develop, and test the concept of pointing in remote presentations. The prototype offers visualizing and navigating the slides as well as âpointingâ and zooming. To further investigate the problem and possible solutions, a theoretical framework was designed representing the relationships between the presenterâs intention and gesture and the resulting visual effect (cursor) that enables the audience members to interpret the meaning of the effect and the presenterâs intention.
Two studies were performed to investigate peopleâs appreciation of different ways of presenting remotely. An initial qualitative study was performed at The Hague, followed by an online quantitative user experiment. The results indicate that subjects found pointing to be helpful in understanding and concentrating, while the detached video feed of the presenter was considered to be distracting. The positive qualities of having the video feed were the emotion and social presence that it adds to the presentations. For a number of subjects, pointing displayed some of the same social and personal qualities [2] that video affords, while less intensified.
The combination of pointing and video proved to be successful with 10-out-of-19 subjects scoring it the highest while pointing example came at a close 8-out-of-19. Video was the least preferred with only one subject preferring it.
We suggest that the research performed here could provide a basis for future research and possibly be applied in a variety of distributed collaborative settings.Universidade da Madeira - Madeira Interactive Technologies Institut
Design of Transmission Pipeline Modeling Language
General purpose software design and development involves the repetition of many processes, and the ability to automate these processes is often desired. To formalize a software process, such as modelling pipeline systems that transport fluids, an existing general purpose programming language (GPL) can be extended with its important aspects extracted as a model. However, the complexities and boundaries the programming language places on the ability to concisely and clearly describe the designing and modelling processes of the pipeline configurations can be difficult. The reality is that the library of a typical GPL Application Programmers Interface (API) constitutes class, method, and function names that become available only by object creation and method invocation, and as such cannot express domain concepts effectively. An alternative approach is to develop a language specifically for describing the processes. A language formalism that encourages domain specific development and as a tool for solving the complex problem of efficiently and effectively aiding the pipeline engineer in the design and implementation of pipeline configurations is presented in this paper. The language tool is used on the .Net platform for domain specific software development
Chatbots for Modelling, Modelling of Chatbots
Tesis Doctoral inĂ©dita leĂda en la Universidad AutĂłnoma de Madrid, Escuela PolitĂ©cnica Superior, Departamento de IngenierĂa InformĂĄtica. Fecha de Lectura: 28-03-202
Interactive Visualization Lenses:: Natural Magic Lens Interaction for Graph Visualization
Information visualization is an important research field concerned with making sense and inferring knowledge from data collections. Graph visualizations are specific techniques for data representation relevant in diverse application domains among them biology, software-engineering, and business finance. These data visualizations benefit from the display space provided by novel interactive large display environments. However, these environments also cause new challenges and result in new requirements regarding the need for interaction beyond the desktop and according redesign of analysis tools. This thesis focuses on interactive magic lenses, specialized locally applied tools that temporarily manipulate the visualization. These may include magnification of focus regions but also more graph-specific functions such as pulling in neighboring nodes or locally reducing edge clutter. Up to now, these lenses have mostly been used as single-user, single-purpose tools operated by mouse and keyboard.
This dissertation presents the extension of magic lenses both in terms of function as well as interaction for large vertical displays. In particular, this thesis contributes several natural interaction designs with magic lenses for the exploration of graph data in node-link visualizations using diverse interaction modalities. This development incorporates flexible switches between lens functions, adjustment of individual lens properties and function parameters, as well as the combination of lenses. It proposes interaction techniques for fluent multi-touch manipulation of lenses, controlling lenses using mobile devices in front of large displays, and a novel concept of body-controlled magic lenses. Functional extensions in addition to these interaction techniques convert the lenses to user-configurable, personal territories with use of alternative interaction styles. To create the foundation for this extension, the dissertation incorporates a comprehensive design space of magic lenses, their function, parameters, and interactions. Additionally, it provides a discussion on increased embodiment in tool and controller design, contributing insights into user position and movement in front of large vertical displays as a result of empirical investigations and evaluations.Informationsvisualisierung ist ein wichtiges Forschungsfeld, das das Analysieren von Daten unterstĂŒtzt. Graph-Visualisierungen sind dabei eine spezielle Variante der DatenreprĂ€sentation, deren Nutzen in vielerlei AnwendungsfĂ€llen zum Einsatz kommt, u.a. in der Biologie, Softwareentwicklung und Finanzwirtschaft. Diese Datendarstellungen profitieren besonders von groĂen Displays in neuen Displayumgebungen. Jedoch bringen diese Umgebungen auch neue Herausforderungen mit sich und stellen Anforderungen an Nutzerschnittstellen jenseits der traditionellen AnsĂ€tze, die dadurch auch Anpassungen von Analysewerkzeugen erfordern. Diese Dissertation befasst sich mit interaktiven âMagischen Linsenâ, spezielle lokal-angewandte Werkzeuge, die temporĂ€r die Visualisierung zur Analyse manipulieren. Dabei existieren zum Beispiel VergröĂerungslinsen, aber auch Graph-spezifische Manipulationen, wie das Anziehen von Nachbarknoten oder das Reduzieren von KantenĂŒberlappungen im lokalen Bereich. Bisher wurden diese Linsen vor allem als Werkzeug fĂŒr einzelne Nutzer mit sehr spezialisiertem Effekt eingesetzt und per Maus und Tastatur bedient.
Die vorliegende Doktorarbeit prĂ€sentiert die Erweiterung dieser magischen Linsen, sowohl in Bezug auf die FunktionalitĂ€t als auch fĂŒr die Interaktion an groĂen, vertikalen Displays. Insbesondere trĂ€gt diese Dissertation dazu bei, die Exploration von Graphen mit magischen Linsen durch natĂŒrliche Interaktion mit unterschiedlichen ModalitĂ€ten zu unterstĂŒtzen. Dabei werden flexible Ănderungen der Linsenfunktion, Anpassungen von individuellen Linseneigenschaften und Funktionsparametern, sowie die Kombination unterschiedlicher Linsen ermöglicht. Es werden Interaktionstechniken fĂŒr die natĂŒrliche Manipulation der Linsen durch Multitouch-Interaktion, sowie das Kontrollieren von Linsen durch MobilgerĂ€te vor einer Displaywand vorgestellt. AuĂerdem wurde ein neuartiges Konzept körpergesteuerter magischer Linsen entwickelt. Funktionale Erweiterungen in Kombination mit diesen Interaktionskonzepten machen die Linse zu einem vom Nutzer einstellbaren, persönlichen Arbeitsbereich, der zudem alternative Interaktionsstile erlaubt. Als Grundlage fĂŒr diese Erweiterungen stellt die Dissertation eine umfangreiche analytische Kategorisierung bisheriger Forschungsarbeiten zu magischen Linsen vor, in der Funktionen, Parameter und Interaktion mit Linsen eingeordnet werden. ZusĂ€tzlich macht die Arbeit Vor- und Nachteile körpernaher Interaktion fĂŒr Werkzeuge bzw. ihre Steuerung zum Thema und diskutiert dabei Nutzerposition und -bewegung an groĂen DisplaywĂ€nden belegt durch empirische Nutzerstudien
Collaborative geographic visualization
DissertaçaÌo apresentada na Faculdade de CiĂȘncias e Tecnologia da Universidade Nova de
Lisboa para a obtençaÌo do grau de Mestre em Engenharia do Ambiente, perfil GestĂŁo e
Sistemas AmbientaisThe present document is a revision of essential references to take into account when developing ubiquitous Geographical Information Systems (GIS) with collaborative
visualization purposes.
Its chapters focus, respectively, on general principles of GIS, its multimedia components and ubiquitous practices; geo-referenced information visualization and its graphical components of virtual and augmented reality; collaborative environments, its technological requirements, architectural specificities, and models for collective information management; and some final considerations about the future and challenges of collaborative visualization of GIS in ubiquitous environment
Advanced User-Interaction with GUIs in MatLABÂź
The advent of computer graphics and simulation software has strongly influenced the industrial design. Nowadays, when facing out the design of a new product or the re-design of an existing one it is of interest evaluating different design scenarios, by comparing physical and functional behaviors and product performances. Engineers are aimed to explore many and many "what-if" design scenarios for design optimization. The chapter focuses on two MatLABÂźâs GUI applications, developed at University of Molise in collaboration with University of Naples (Italy): SVA-FEA (Statistical Variational Analysis & Finite Element Analysis) and PROMesh (PROcessing Mesh).
The aim is to show how to provide advanced user interaction in several common tasks such as importing data, editing data, controlling FEA runs, visualizing results, and exporting results
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