Visual Analytics

a Daniel Keim et al.: Mastering the information age solving problems with visual analytics. Eurographics Association, 2010.
b Patrick Fiaux et al.: Bixplorer: Visual Analytics with Biclusters. Computer 46 (8) pp. 90-94, 2013.
c Emmanuel Müller et al.: Discovering multiple clustering solutions: Grouping objects in different views of the data. IEEE International Conference on Data Engineering (ICDE), 2012.
d Michael Hund et al.: Visual Quality Assessment of Subspace Clustering. KDD Workshop on Interactive Data Exploration and Analytics (IDEA), 2016.

Summary:

This lecture teaches how to analyze large, high-dimensional, partially unreliable, and incomplete data using data analysis techniques and interactive visualizations that are tightly coupled. It explains the properties and parameters of important data analysis methods and shows how these methods can be integrated into Visual Analytics systems.

The interdisciplinary character of the development and use of Visual Analytics approaches is emphasized. This also includes questions of visual perception and cognitive processing of visual data and their role in decision-making processes. Special attention is given to the knowledge generation process, the process by which observations, hypotheses, statistical results and other artifacts are generated and managed. The application examples range from financial data (stock prices), data of credit card movements, gene expression data to epidemiological data and patient data. Target groups of such applications are investors, security departments, biologists, statisticians and physicians.

You can see an interview with Prof. Preim on the topic of Visual Analytics on Youtube.


Organizational Issues

Audience: WPF CV-Master 1-3; WPF INF-Master 1-3; WPF IngIF-Master 1-3; WPF WIF-Master 1-3; WPF DKE-Master 1-3; WPF DigiEng-Master 1-3
Graduation: Examination(orally)
ECTS-Credits: 6

Examination requirements:

  • Timely registration (approx. four weeks in advance!)

The Visual Analytics exam will take place on 17.07.2020 from 12-14 pm in exhibition hall 2. Please note that there will be NO oral or virtual exam for those students who cannot take the exam due to the corona situation. We will offer a repeat exam in the coming winter semester. All students who are unable to take part in this semester will be able to take part in the repeat exam.

Lecture

Location: G29-307
Time: Di., 13:00 bis 15:00 (weekly) (→ see LSF)
1. Video Conference (Zoom): 05.05.2020

Due to the current corona situation, lectures and exercises will be held virtually until further notice. The videos for the lecture will be linked on this page together with the corresponding slides. There will be 18 video lectures with a duration of about 60 minutes (corresponding to 12 full lectures with 90 minutes) where you see the slides, a small version of the speaker and the related audio. These lectures are meant to be used at any time or location as it is convenient for you.

It is sufficient to register for the exercise class to take part in the lecture.

Lecturer: Prof. Bernhard Preim
Office: G29-211
Tel.: (0391) 67 5 85 12
E-Mail: bernhard.preim@ovgu.de

Course of Lectures and Slides:

Exercise

Similar to the lecture, the exercise will be performed virtually.

From 27.04. onwards, a new exercise sheet will be put online here every Monday. In the following week we will provide sample solutions for the current exercise sheet. There will be no voting for the exercises this semester. This means that the exercises are voluntary this semester. With regard to the exam, however, we advise everyone to deal with the exercises in detail every week.

For asking and answering questions about the lectures and exercises please use Moodle.

You can login with your student account at the university. There you will find a forum for each exercise sheet and lecture. Write your questions about the corresponding exercises/lectures and we will answer them. After providing the respective sample solution, you have 3 days to post questions about this exercise sheet in the corresponding forum. Afterwards, this forum will be closed. Please check before you ask a question of whether it is already answered in the forum.

Exercise:

(Expected ) course of events:

# Date Thema Material
1 06.04. Time for preparation01-Intro_VA_&_Vis.pdf
2 13.04. Time for preparation02-Intro_to_R_&_RStudio.pdf
3 20.04. Time for preparation 03-Creating_Vis_with_ggplot2.pdf
4 27.04. 1. Exercise sheet ExerciseSheet_1.pdf, Solution_Exercise_Sheet_1.pdf
5 04.05. 2. Exercise sheet ExerciseSheet_2.pdf, ex_02_solution_template.Rmd, ex_02_example_solution.html
6 11.05. 3. Exercise sheet ExerciseSheet_3.pdf, ex_03_solution_template.Rmd, ex_03_example_solution.pdf
7 18.05. 4. Exercise sheet ExerciseSheet_4.pdf, Excercise_4_Solution.pdf
8 25.05. 5. Exercise sheetExerciseSheet_5.pdf, ex_05_solution_template.Rmd, ex_05_example_solution.pdf
9 01.06. 6. Exercise sheet ExerciseSheet_6.pdf, ex_06_solution_template.Rmd, ex_06_example_solution.pdf
10 08.06. 7. Exercise sheet ExerciseSheet_7.pdf, ex_07_solution_template.Rmd, ex_07_example_solution.pdf
11 15.06. 8. Exercise sheetExerciseSheet_8.pdf, Exercise_Sheet_8_Solution.pdf
12 22.06. 9. Exercise sheetExerciseSheet_9.pdf, Exercise_Sheet_9_Solution.pdf
13 29.06. 10. Exercise sheet ex_10_solution_template.pdf, ex_10_solution_template.Rmd
14 06.07. 11. Exercise sheet