Visualizing and Analyzing Video Content With Interactive Scalable Maps

Ma, Chenyue; Liu, Yong-Jin; Zhao, Guozhen; Wang, Hongan

doi:10.1109/tmm.2016.2614229

Cited by 8 publications

(3 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some studies use the self organizing map (SOM) method to cluster semantic data and try to express the differences between semantics in the form of maps (Skupin, 2002), and discuss the mapping research of transforming metaphors into non-geographical visualization (Skupin & Fabrikant, 2003). This kind of cartographic research that transforms metaphors into non-geographical visualization has been applied to the fields of network communication analysis (Fowler, et al, 2014) and video content (Ma, Liu, , Zhao, & Wang, 2016). In the field of social media, a metaphor map generation method is used to analyze the evolving themes in real-time Twitter messages (Gansner, Hu, & North, 2013).…”

Section: Visualization Of Social Media Information Semanticsmentioning

confidence: 99%

Visualization of Emergency Needs Posted on Social Media by Metaphor Map

Cui

et al. 2021

Data and Information Management

View full text Add to dashboard Cite

Thematic analysis based on a social network is one of the effective means in emergency management. To improve users’ understanding, the results of the thematic analysis are often displayed through visualization. However, the previous researches on text theme visualization rarely considered the unified representation of theme structure and theme evolution. Cognitive load leads to difficulty, and it happens due to the separate representation of structure and evolution relationship and it still increases because of the characteristics of urgency, uncertainty, etc. Therefore, a metaphor map is introduced in this study to overcome the limits of previous visualization tools in characterizing the structure and evolutionary relationship of emergency. On the one hand, different elements in the metaphor map represent the information of popularity and structure of the demand, respectively. On the other hand, the visual design based on the metaphor map strengthens the representation of the content and evolution states of the demand themes. At the theoretical level, a visualization method for emergency needs based on the metaphor map is proposed in this study, which enriches the theory of emergency information visualization. At the practical level, this study explores the design of a visualization system based on the metaphor map under crisis scenarios, which enhances the interaction between users and crisis information, and provides references for decision-making such as emergency material scheduling and emergency resource coordination.

show abstract

Section: Visualization Of Social Media Information Semanticsmentioning

confidence: 99%

Visualization of Emergency Needs Posted on Social Media by Metaphor Map

Cui

et al. 2021

Data and Information Management

View full text Add to dashboard Cite

show abstract

“…For social media data, which are typically associated data, researchers have used map-like visualisation to explore the information diffusion pattern and the evolution of major events in the network [13], [14]. Other studies have also used maps as a data expression vector to explore abstract data [15], [30], [38]. All of these studies provide good technical support for the spatialization display of non-spatial abstract data.…”

Section: Introductionmentioning

confidence: 99%

Shape Decision-Making in Map-Like Visualization Design Using the Simulated Annealing Algorithm

Rui

Yan

et al. 2019

IEEE Access

View full text Add to dashboard Cite

Semantic information without spatial characteristics can also be visualised in the form of a map. This map type is usually called map-like visualisation; it is not a representation of a real geoentity but borrows the map metaphor. In current map-like visualisation works, the manipulation of the cartographic process is poor, and there is a considerable amount of randomness and uncertainty in the map results. For instance, in the process of converting semantic objects to map objects, the map shape is usually uncertain and has many possibilities. Frequently, however, we need shapes to follow certain principles, such as the principles of being close to a certain shape and having a simple geometry, to facilitate recognition and mapping. To achieve a balance between uncertain shapes and design needs, this study enhances the realisation of the cartographer's design idea by improving the controllability in the cartographic process. An optimisation technology, the simulated annealing algorithm, is introduced to control the determination of shape to improve mapping efficiency. Experiments based on real data show that based on this method, the map-like representation not only creates a whole outline close to the pre-defined shape but also realises internal regions with a simple shape.

show abstract

“…Jiang et al [3] introduced a hierarchy visualization technique for representing video search results in a visualization-friendly form based on advanced analysis algorithms. Ma et al [4] introduced a geographic map metaphor that represents the content of a video in multiple granularities to support level-of-detail exploration. Renoust et al [5] tracked faces in a set of new videos and displayed the results in networks to reconstruct a political social network that demonstrates the evidence of "presidentialization" of the media.…”

mentioning

confidence: 99%