An R Package for estimation of the Structural Topic Model. Currently available on CRAN and hosted on Github. More information including features, a vignette, and installation instructions are available at the project's website http://structuraltopicmodel.com/
An R Package for memory-efficient optimization with an L1 penalty. This provides a wrapper around Naoaki Okazaki library libLBFGS which implements LBFGS and OWL-QN. http://cran.r-project.org/web/packages/lbfgs/index.html
Generates an interactive visualization of topic correlations/hierarchy in a Structural Topic Model (STM) of Roberts, Stewart, and Tingley. The package performs a hierarchical clustering of topics which are then exported to a JSON object and visualized using D3. Available at http://cran.r-project.org/web/packages/stmCorrViz/