3DVDM-DS

3DVDM-DS is the Density Surface module of the 3D Visual Data Mining System. The goal of 3DVDM-DS is to advance 3D density information and offer new data analysis capabilities.
Raw Data
Density Surface

The scatter plot in the figure to the left represents a spiral. Clearly, it is difficult to recognize the spiral from the visualization of the scatter plot. It is much easier to analyze the structures if we build a model of the data as shown in the figure to the right. Specifically, we use the kernel estimation technique to estimate the probability density function (PDF). The PDF models the data statistically, it abstracts from individual observations, and it emphasizes the structures.

The 3DVDM system was developed as part of an interdisciplinary research project at Aalborg University, Denmark with partners from the Department of Computer Science, the Department of Mathematical Sciences, the Faculty of Humanities, and the Institute of Electronic Systems. The 3DVDM system is an extensible framework for interactive visual data mining. The software allows to visualize and explore data in advanced 3D virtual reality environments (Panorama, 6-sided Cave) and on regular computer monitors.

The DIS group actively participates in the 3DVDM project. Our main interests are the impact of density information in visual data mining, visual data mining of data with hierarchical domains, visualization of data without order, etc. We continuously offer projects of both B.Sc. and M.Sc degree in the context of the 3DVDM system and visual data mining.