Magic lens based focus+context techniques are powerful means for exploring document spatializations. Typically, they only
offer additional summarized or abstracted views on focused documents. As a consequence, users might miss important information that
is either not shown in aggregated form or that never happens to get focused. In this work, we present the design process and user study
results for improving a magic lens based document exploration approach with exemplary visual quality cues to guide users in steering
the exploration and support them in interpreting the summarization results. We contribute a thorough analysis of potential sources of
information loss involved in these techniques, which include the visual spatialization of text documents, user-steered exploration, and the
visual summarization. With lessons learned from previous research, we highlight the various ways those information losses could
hamper the exploration. Furthermore, we formally define measures for the aforementioned different types of information losses and bias.
Finally, we present the visual cues to depict these quality measures that are seamlessly integrated into the exploration approach. These
visual cues guide users during the exploration and reduce the risk of misinterpretation and accelerate insight generation. We conclude
with the results of a controlled user study and discuss the benefits and challenges of integrating quality guidance in exploration
techniques.
%0 Journal Article
%1 noauthororeditor2019truelens
%A Han, Qi
%A Thom, Dennis
%A John, Markus
%A Koch, Steffen
%A Heimerl, Florian
%A Ertl, Thomas
%D 2019
%J IEEE Transactions on Visualization and Computer Graphics
%K 2019 vis(us) vis-gis visus:ertl visus:hanqi visus:heimerfn visus:johnms visus:kochsn visus:thomds
%T TrueLens: Quality Guidance for Document Exploration
%X Magic lens based focus+context techniques are powerful means for exploring document spatializations. Typically, they only
offer additional summarized or abstracted views on focused documents. As a consequence, users might miss important information that
is either not shown in aggregated form or that never happens to get focused. In this work, we present the design process and user study
results for improving a magic lens based document exploration approach with exemplary visual quality cues to guide users in steering
the exploration and support them in interpreting the summarization results. We contribute a thorough analysis of potential sources of
information loss involved in these techniques, which include the visual spatialization of text documents, user-steered exploration, and the
visual summarization. With lessons learned from previous research, we highlight the various ways those information losses could
hamper the exploration. Furthermore, we formally define measures for the aforementioned different types of information losses and bias.
Finally, we present the visual cues to depict these quality measures that are seamlessly integrated into the exploration approach. These
visual cues guide users during the exploration and reduce the risk of misinterpretation and accelerate insight generation. We conclude
with the results of a controlled user study and discuss the benefits and challenges of integrating quality guidance in exploration
techniques.
@article{noauthororeditor2019truelens,
abstract = {Magic lens based focus+context techniques are powerful means for exploring document spatializations. Typically, they only
offer additional summarized or abstracted views on focused documents. As a consequence, users might miss important information that
is either not shown in aggregated form or that never happens to get focused. In this work, we present the design process and user study
results for improving a magic lens based document exploration approach with exemplary visual quality cues to guide users in steering
the exploration and support them in interpreting the summarization results. We contribute a thorough analysis of potential sources of
information loss involved in these techniques, which include the visual spatialization of text documents, user-steered exploration, and the
visual summarization. With lessons learned from previous research, we highlight the various ways those information losses could
hamper the exploration. Furthermore, we formally define measures for the aforementioned different types of information losses and bias.
Finally, we present the visual cues to depict these quality measures that are seamlessly integrated into the exploration approach. These
visual cues guide users during the exploration and reduce the risk of misinterpretation and accelerate insight generation. We conclude
with the results of a controlled user study and discuss the benefits and challenges of integrating quality guidance in exploration
techniques.},
added-at = {2018-12-16T20:45:58.000+0100},
author = {Han, Qi and Thom, Dennis and John, Markus and Koch, Steffen and Heimerl, Florian and Ertl, Thomas},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/25999185f485cc22d0a9bc91848fe977a/qihan},
interhash = {8839e2cf4fcdf0a2a7955c9222e8545b},
intrahash = {5999185f485cc22d0a9bc91848fe977a},
journal = {IEEE Transactions on Visualization and Computer Graphics},
keywords = {2019 vis(us) vis-gis visus:ertl visus:hanqi visus:heimerfn visus:johnms visus:kochsn visus:thomds},
timestamp = {2018-12-16T19:50:07.000+0100},
title = {TrueLens: Quality Guidance for Document Exploration},
year = 2019
}