The designed tool allows exploring the results of the
literature analysis. The tool enables identifying general
design factors and discovering research gaps. The following
carousel images explain the panels and visualizations of the
interface. The tool was build with
D3,
Bootstrap, jQuery,
Material Design Icons.
The category panel shows the manually extracted groups.
Users can present single or multiple categories in the other
views.
Using the filter panel, users can filter for individual
labels. Furthermore, a user can reset all filtering options
using the reset button.
The projection view shows two UMAP projections of the
investigated papers. The projections use the cosine
similarity as a distance metric. The coding scheme
projection represents the applied coding scheme. The encoded
labels are included as vectors by utilizing a
one-hot-encoding for each label. The PDF projection
represents the similarity of each research paper text. We
extracted and cleaned the text from the research papers. We
then encoded the papers' extracted texts using tf–idf (term
frequency-inverse document frequency) as vectors and
projected them afterward.
The table view shows the detailed coding scheme and is
linked to the other views. The table columns can also be
sorted to group common design factors.