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Björn Hartmann
Researcher at University of California, Berkeley
Publications - 118
Citations - 9005
Björn Hartmann is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: User interface & Crowdsourcing. The author has an hindex of 47, co-authored 114 publications receiving 8114 citations. Previous affiliations of Björn Hartmann include Microsoft & Stanford University.
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Proceedings ArticleDOI
Delta: a tool for representing and comparing workflows
TL;DR: Delta is presented, an interactive workflow visualization and comparison tool that helps users identify the tradeoffs between workflows and found that the intermediate list view provided the best information density.
Proceedings ArticleDOI
Stacksplorer: call graph navigation helps increasing code maintenance efficiency
TL;DR: Stacksplorer computes the call graph of a given piece of code, visualizes relevant parts of it, and allows developers to interactively traverse it, which augments the traditional code editor by offering an additional layer of navigation.
Journal ArticleDOI
Two-handed marking menus for multitouch devices
TL;DR: Two new two-handed multistroke marking menu variants in which users either draw strokes with both hands simultaneously or alternate strokes between hands are presented, finding that using two hands simultaneously is faster than using a single, dominant-handed marking menu by 10--15%.
Proceedings ArticleDOI
SceneSkim: Searching and Browsing Movies Using Synchronized Captions, Scripts and Plot Summaries
TL;DR: This work introduces SceneSkim, a tool for searching and browsing movies using synchronized captions, scripts and plot summaries, and proposes new algorithms for finding word-level caption to script alignments, parsing text scripts, and aligning plot summary to scripts.
Proceedings ArticleDOI
Engaging Amateurs in the Design, Fabrication, and Assembly of Electronic Devices
TL;DR: A six-session workshop in which eight participants made wifi-connected devices through the design and fabrication of custom printed circuit boards is described and the implications of using components and processes analogous to those in commercial products are explored.