  The emergence and ongoing development of Web 2.0 technologies have enabled
new and advanced forms of collective intelligence at unprecedented scales,
allowing large numbers of individuals to act collectively and create high
quality intellectual artifacts. However, little is known about how and when
they indeed promote collective intelligence. In this manuscript, we provide a
survey of the automated tools developed to analyze discourse-centric collective
intelligence. By conducting a thematic analysis of the current research
direction, a set of gaps and limitations are identified.
