Event Line View: Interactive Visual Analysis of Irregular Time-Dependent Data

Abstract

Abstract. In this paper we present a novel approach to visualize irregularly occurring events. We introduce the event line view designed specifically for such events data (a subset of time dependent data). The event line view is integrated in a coordinated multiple views (CMV) system and linked with other conventional views to support interactive visual analysis. The main idea is to analyze events relative to two categorical attributes from a multidimensional multivariate dataset. Since we are interested in the categorical dimension we have also integrated and linked the tag cloud view in the CMV system. To the best of our knowledge this is the first integration of the tag cloud view in a CMV system. The tag cloud view can depict a ratio of the selected items versus the non-selected items. The proposed approach is illustrated using the VAST Challenge 2008 Geo-Spatial data set that contains data on interdiction or landing of illegal immigrants in the USA. It is a multivariate multidimensional dataset with irregular events that illustrates the potential and capabilities of the proposed approach and the developed CMV system.

3D Visualization and Multimodal Interaction with Temporal Information Using Timelines

“…[11,12]) and (c) Semantic Timelines (e.g., [8,21]). The first category includes timelines that represent historical events, aiming to provide an overview around a specific topic.…”

“…In general, timelines aim to present information regarding specific temporal periods along with an overview of related occurring events in condensed, yet rich, form. The contents of a timeline can vary from historical events (e.g., [1,25]) to numerical data representation (e.g., [11,12]), while the only limitation is that the various items should be temporally related. In this context, this paper reports on the design, development and evaluation of TimeViewer, a system allowing the modeling, storing, visualization and multimodal interaction with timelines.…”

Supporting Moodle-Based Lesson through Visual Analysis

“…Also they make controlled study to explore the efficacy of temporal representation on tag cloud, see SparkClouds [6]. The first attempt to use the tag cloud view as a part of the coordinated multiple views (CMV) system was presented by Matkovic, et al [7].…”

Analítica visual en eLearning

“…Es muy obvio que no hay tendencias y/o patrones de uso del tipo de barco, y también que el número de barcos de algún tipo no son lo mismo (Matkovic, Ammer, Gracanin, Purgathofer, & Lez, 2010).…”

“…Marzo, mayo y junio fueron meses de mayor éxito para los inmigrantes. La vista derecha muestra lo mismo pero con una única opción seleccionada (por lo que no se muestra el contexto) (Matkovic et al, 2010). .......... 174!…”