Projects

Ongoing Projects

KnoVA – Knowledge–Assisted Visual Analytics

Nowadays increasing amounts of data about complex phenomena are collected, stored, and made available for analysis.  Visual Analytics (VA), “the science of analytical reasoning facilitated by interactive visual interfaces”, is a multidisciplinary approach to make sense of this data, combining the enormous processing power of computers with the outstanding perceptual and cognitive capabilities of humans. Users of VA systems need to rely on prior knowledge to gain insights from data, formulate and test hypotheses, interpret results, and discover new knowledge.

IMMV: Interactive Music Mapping Vienna: Exploring a City, 1945 up to the present day

The questions of how music acts in the urban context as a social identification instrument and how music is functionalized to urban symbolic politics form the starting point of the research project conducted by the MUK (Music and Arts University of The City of Vienna). The music component of mental determination of urbanity is created using the example of City of Vienna: How the "sensual" medium of music, generator of atmosphere and mood, produces not only ideological subjects, but also the notion of specific urban spheres?

VISSECT - Visual Segmentation and Labeling of Multivariate Time Series

The overarching objective of this research project is the combination of the three most relevant steps in the process of segmenting and labeling multivariate time series: algorithm selection, parametrization, and uncertainty analysis. Each of these steps is a research problem on its own, and we will contribute novel solutions to all of them. However, only the combination of the different aspects will comprehensively address the important challenge of visual analytics as identified by Jarke van Wijk: "Which model? Which parametrization?

polycube - Towards Integrated Mental Models of Cultural Heritage Data

Web-based databases of museums’ and cultural institutions’ collections enable fast access to important cultural assets for everyone: Millions of paintings, sculptures, music, and artworks can be reached with only a few clicks. Current research shows that interested visitors like to explore digital collections - often without a concrete goal. They like their observations to add up and make sense and to learn something new.

DeVisOR - Detection and Visualization of unexploded Ordnance Risks

Analysis of historic air photos (images) with the goal of detecting unexploded bombs is a niche task, yet extremely important for preventing great damage or even loss of life. The computer science techniques and software tools currently available are of general nature, like Geographic Information Systems (GIS) and graphics editing programs.

Finished Projects

ReMine

Brigid

TimeBench: A Data Model and Software Library for Visual Analytics of Time-Oriented Data

TimeBench is a free and open source software library that provides foundational data structures and algorithms for time-oriented data in Visual Analytics. Its expressiveness and developer accessibility have been evaluated through application examples demonstrating a variety of challenges with time-oriented data and long-term developer studies conducted in the scope of research and student projects.

 

FinanceVis - Design and Evaluation of Visualization Methods to Compare Multivariate Time Series

The comparison of several stocks against each other is an important task in financial analysis. The data is usually compared by juxtaposition or by superimposition. But even a large enough difference between the price ranges can make a simple comparison of the data difficult.

Stock market data is not limited to stocks. It also includes stock (market) indices such as the Dow Jones and NASDAQ. Stock indices have their own proprietary unit, which is different to the unit of a stock. Time series which have different units are also called heterogeneous data.

TrainVis 2 - Interactive visualization of railway timetables

TrainVis facilitates the visualization of railway timetables using several different types of representations.

A-Plan

User and task analysis

To illustrate the problem, all tasks and the currently used software were investigated. We found many usability problems in the existing software system (SAP CRM). The process of an incoming call is illustrated here:

ImagePlus + ManageCategories for Mediawiki

ManageCategories: Categorizing Articles without Knowledge of Wikimarkup.

ImagePlus: Adding / Manipulating of Images using without Knowledge of Wikimarkup using HTML Objects.
Research and Evaluation of existing WYSWYG Extensions for Mediawiki

Social Rewarding

Wikipedia - the most famous free encyclopedia - has been grown to the biggest wiki community site where hundreds of thousands of users all around the world post and edit articles in many different languages. As other online communities have troubles motivating users to participate actively, the tremendous contribution rate on Wikipedia has led to many problems like wrong information, copyright violations, or users' misbehavior, for example, spammers or trolls.

Dynamic XML Query Table Editor (DQT)

DQT supports the creation of such databases as well as their presentation and includes the following features:

Urumqi Project - The Water Quality Measurement

The water supply company of an city in north-west China has commissioned KSC to build a remotely controlled system for monitoring of the water quality. The water quality is measured by measuring probes supplied by the company s::can.

The main tasks of the system are retrieving, storing, visualization and delivery of data from s::can measuring probes. The following individual components are used:

1. SCADA system
2. Interface server
3. database
4. s::can server
5. Visualization cliente

EvalBench: A Software Library for Visualization Evaluation

To pave the way for future experimenters in the HCI field, the Java software library EvalBench was developed that focused on flexibility and reusability and should be easy to integrate into existing Java visualization applications.

Doctoral College: Environmental Informatics

Environmental InformaticsIn recent years, Environmental Informatics has emerged as a new interdisciplinary research field that can facilitate decisions regarding social, economic, ecological, and environmental goals based on a variety of information technology measures.

CVAST - Centre for Visual Analytics Science and Technology

CVAST aims to design and  develop innovative methods for data interpretation to capture the daily flood of information in interactive visualizations and analyses. Scenarios that involve temporal properties of such data are in the focus of our scientific interest.

AsbruFlow - Interactive Information Visualization to Support Protocol-based Care

Based on the Software Prototype CareVis, this project is an approach to communicate the complex logic of Asbruplans to domain experts like physicians or nursing staff. 

TrainVis - Interactive visualization of train schedules

Timetables for trains or airplanes are often represented astextual tables. These contain usually all important information, however it is often not easy to find answersto more specific questions, like for example - "which train should I taketo travel from Vienna to Paris as quick as possible without changing the train twice?" - Humans can process visual information better than text and that?s why our application shall facilitate the process of understanding and searching a timetable.

TimeViewer/TimeVis - Visualizing Temporal Data using prefuse

 

Particularly the requirements were:

PlanViewer - Treating Temporal Uncertainties of Complex Hierarchical Data Visually

 

The visualization was developed with two open-source toolkits: The InfoVis Toolkit and Prefuse. The InfoVis Toolkit provides a memory saving data table used to store abstract data, prefuse is the base framework for all graphical issues.

The application was developed in the scope of a thesis about temporal uncertainties in plans. Generally, there are three ways on how to treat temporal uncertainties:

MetaDataEditor - Collecting and Storing Medical Metadata

 

MetaDataEditor uses a prototypical XML-based framework which allows gathering following metadata concerning:

in2vis - Interactive Information Visualization: Exploring and Supporting Human Reasoning Processes

Users are confronted with a huge amount of abstract, but highly structured data. They want to accomplish different kinds of tasks, where they need different interactions and navigations as well as different views of the same data to gain more insight into the data under investigation.  These processes of investigation are very complex and only little guidance exists. Therfore our aims are

InfoVis:Wiki - the Information Visualization community platform

Using editable-by-anyone Wiki technology turned out to be the only way of keeping the presented information up to date and knowledge exchange vivid.

InfoVis:Wiki Main Page

 

Publications