Jan Ole Vollmer

Jan Ole Vollmer

MSc

About

8
Publications
1,509
Reads
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12
Citations
Additional affiliations
August 2016 - present
Hasso Plattner Institute
Position
  • Research Assistant
Education
October 2010 - September 2016
Hasso Plattner Institute
Field of study
  • IT-Systems Engineering

Publications

Publications (8)
Conference Paper
Full-text available
Offers to buy and sell cryptocurrencies on exchanges are collected in an order book as pairs of amount and price provided with a timestamp. Contrary to tick data, which only reflects the last transaction price on an exchange, the order book reflects the market's actual price information and the available volume. Until now, no system has been presen...
Conference Paper
Full-text available
Most cryptocurrencies are bought and sold on centralized exchanges that manage supply and demand via an order book. Besides trading fees, the high liquidity of a market is the most relevant reason for choosing one exchange over the other. However, as the different liquidity measures rely on the order book, external events that cause people to sell...
Conference Paper
Full-text available
In this paper, we present a 2.5D visualization technique based on the dust & magnet metaphor, which generally allows for interactively exploring and analyzing large multivariate data sets. In addition to position and color, we introduce height as additional visual variable for particles to encode extra data attributes in the 2.5D visualization, thu...
Article
Full-text available
Thematic maps are a common tool to visualize semantic data with a spatial reference. Combining thematic data with a geometric representation of their natural reference frame aids the viewer’s ability in gaining an overview, as well as perceiving patterns with respect to location; however, as the amount of data for visualization continues to increas...
Conference Paper
Full-text available
Interactive image deformation is an important feature of modern image processing pipelines. It is often used to create caricatures and animation for input images, especially photos. State-of-the-art image deformation techniques are based on transforming vertices of a mesh, which is textured by the input image, using affine transformations such as t...
Presentation
Full-text available
Presentation of Research Paper "Interactive GPU-based Image Deformation for Mobile Devices"
Conference Paper
Full-text available
Current in-memory databases clearly outperform their disk-based counterparts. In parallel, recent PCIe-connected NAND flash devices provide significantly lower access la-tencies than traditional disks allowing to reintroduce classical memory paging as a cost-efficient alternative to storing all data in main memory. This is further eased by new, ded...

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