  One initial goal for the DRMF is to seed our digital compendium with
fundamental orthogonal polynomial formulae. We had used the data from the NIST
Digital Library of Mathematical Functions (DLMF) as initial seed for our DRMF
project. The DLMF input LaTeX source already contains some semantic information
encoded using a highly customized set of semantic LaTeX macros. Those macros
could be converted to content MathML using LaTeXML. During that conversion the
semantics were translated to an implicit DLMF content dictionary. This year, we
have developed a semantic enrichment process whose goal is to infer semantic
information from generic LaTeX sources. The generated context-free semantic
information is used to build DRMF formula home pages for each individual
formula. We demonstrate this process using selected chapters from the book
"Hypergeometric Orthogonal Polynomials and their $q$-Analogues" (2010) by
Koekoek, Lesky and Swarttouw (KLS) as well as an actively maintained addendum
to this book by Koornwinder (KLSadd). The generic input KLS and KLSadd LaTeX
sources describe the printed representation of the formulae, but does not
contain explicit semantic information. See http://drmf.wmflabs.org.
