Casual Information Visualization on Exploring Spatiotemporal Data

The goal of this thesis is to study how the diverse data on the Web which are familiar to everyone can be visualized, and with a special consideration on their spatial and temporal information. We introduce novel approaches and visualization techniques dealing with different types of data contents: interactively browsing large amount of tags linking with geospace and time, navigating and locating spatiotemporal photos or videos in collections, and especially, providing visual supports for the exploration of diverse Web contents on arbitrary webpages in terms of augmented Web browsing

An end-user pipeline for scrapping and visualizing semi-structured data over the Web

The Web is a vast source of semi-structured data sets that are made readily available to support the construction of new knowledge. Information visualization techniques have been demonstrated a suitable alternative for allowing users to analyze and understand a large amount of data. However, the steps required for visualizing semi-structured data obtained from the Web is not straightforward, and it requires proper treatment before information visualization techniques could be applied. In this work, we present a visualization pipeline for describing the fundamental operations required for visualizing semi-structured data over the Web. For that, we employ Web Scrapping and Web Augmentation techniques for supporting interactive visualizations and solving tasks without changing the context of use of the data. Our approach is duly supported by a framework including scrapping, augmenting and visualization tools and it has been applied to different kinds of websites to demonstrate its validity and feasibility. Our ultimate goal is to expand the limits of our technology for improving the user interaction with websites and creating new experiences for better understanding large data sets.Publicado en Lecture Notes in Computer Science book series (LNCS, vol. 11496)Laboratorio de Investigación y Formación en Informática Avanzad

Visualización de información en la web dirigida por usuarios finales

En este trabajo se implementa una herramienta de visualización para ser utilizada en aplicaciones web previamente existentes. Uno de los objetivos es que sea utilizada en aplicaciones dentro del marco de ciencia ciudadana. De esta manera pretende democratizar la información y simplificar el trabajo a la hora de mejorar interfaces, reduciendo la barrera tecnológica entre la tecnología y la ciencia. La herramienta fue pensada para que programadores la instalen en sus aplicaciones y así ofrecer a los usuarios finales la posibilidad de generar visualizaciones sin tener conocimiento de cómo se construyen internamente. La misma permite crear visualizaciones partiendo de información provista por el sitio visitado. Los usuarios se vuelven responsables de la información que quieren extraer y visualizar, y de qué manera.Facultad de Informátic