Advanced Analytical Theory and Methods: Text Analysis - Data Science and Big Data Analytics - page 402

Figure 9.14 Ten topics on one-star reviews
Figure 9.14 visualizes ten topics from one-star reviews. For example, the
bottom-right topic contains words such as button , power , and broken , which
may indicate that bPhone has problems related to button and power supply. The
Data Science team can track down these reviews and find out if that's really the
case.
Figure 9.15 provides a different way to visualize the topics. Five topics are extracted
from five-star reviews and one-star reviews, respectively. In an interactive
environment, hovering the mouse on a topic highlights the corresponding words in
this topic. The screenshots in Figure 9.15 were taken when Topic 4 is highlighted
for both groups. The weight of a word in a topic is indicated by the disc size.