3D Visualization Interface for Temporal Analysis of Social Media
KeywordsSocial Medium Dependency Relation Tree Representation Textural Content Link Structure
3D visualization interface for temporal analysis of social media is the interface for visual analytics of various types of time varying media contents using 3D information visualization techniques.
Social media such as blogs and microblogs has become popular. It enables us to easily and rapidly publish information on our personal activities, interests, and opinions through writing document, creating links to other information resources, and providing images and/or movies. It dynamically reflects real movements in society.
Many organizations have collected and archived social media contents over the long term. Time series of archived data enable us to analyze temporal changes in trends in social media that reflect both real and virtual activities.
Visual analytics for extracting trends and reading stories from time sequential data sets are important research domains. There has been much research on analyzing temporal changes in trends on social media through visualizing link structures, results of text analysis, or flows of images (Kitsuregawa et al. 2008; Chi et al. 1998; Chi and Card 1999; Toyoda and Kitsuregawa 2005; Kehoe and Gee 2009).
In this entry, I will introduce three kinds of 3D information visualization systems for analyzing temporal changes in: (i) link structure, (ii) textural contents, and (iii) image contents on social media.
State-of-the-Art Work for Visualizing Temporal Changes in Social Media Contents
Visualization for Temporal Changes in Link Structure
We first introduce an interactive 3D visualization system for the time series of web graphs (Itoh et al. 2010). It is to enable us to examine the evolution of web graphs by comparing multiple graphs that have different timings and topics. To accomplish the system, it utilized interactive 3D components called TimeSlices that are 2D planes to visualize web graphs in a 3D environment. We can interactively add new TimeSlices along the timeline, and they can manipulate them to animate web graphs. Visualized web graphs on TimeSlices are snapshots of different timings.
Visualization for Temporal Changes in Textural Contents
We next introduce an interactive 3D visualization system for exploring temporal changes in bloggers’ activities and interests through visualizing phrase dependency structures (Itoh et al. 2012). To accomplish the system, it utilizes two 3D components such as TimeSlices and TimeFluxes. TimeFluxes enable us to visualize temporal changes in the attribute values of particular nodes at every timing. The system visualizes dependency structures of phrases as a unified tree representation in TimeSlices and enables us to interactively navigate to the detailed information by expanding nodes in the tree representation. Sliding operation for the TimeSlices along the timeline indicates changes in the structure and frequencies of dependency relations. To compare different timings and topics side by side, it provides multiple 2D planes. It also visualizes changes in the frequencies of dependency relations by using TimeFluxes.
Visualization for Temporal Changes in Image Contents
We finally introduce a 3D system for visualizing visual trends on social media that chronologically displays extracted clusters of images on blogs (Itoh et al. 2013). The system first adopts a histogram of images by stacking them on a timeline to visualize the flow of various images at each timing to visually analyze trends. This design enables us to find the timing for the beginning of the topic, changes in trends for the topic, bursting points, and a lifetime of the trends. Secondly, it arranges multiple histograms of images in a 3D space to visualize images on different aspects. This design allows us to observe different situations between different topics, sequences of trends, and events with the same timing on different topics.
This entry has introduced the 3D visualization systems for analyzing social media that utilized one dimension in a 3D space as a timeline. Although they independently visualized temporal changes in link structures, results of text analysis, and image clustering for single medium, we can combine these contents and mechanisms to construct integrated 3D visualization systems for intermedia analysis.
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