SemLink is a project whose aim is to link together different lexical
resources via set of mappings. These mappings will make it possible
to combine the different information provided by these different
lexical resources for tasks such as inferencing. We also plan to use
the mappings to aid in semi-automatic extension of each resources
coverage, to increase the overall overlap in coverage. Currently, we
are creating mappings between the following resources:
- PropBank: A corpus
of one million words of English text, annotated with argument role
labels for verbs; and a lexicon defining those argument roles on
a per-verb basis.
A lexicon that groups verbs based on their semantic/syntactic linking
- FrameNet: A lexicon based
on frame semantics.
- WordNet: A lexicon that describes
semantic relationships (such as synonymy and hyperonymy) between
The content of all four of these resources can be browsed on-line
using the Unified Verb Index. A presentation
giving an introduction to SemLink, and two of the resources it
combines (PropBank and VerbNet), was given at the SIGSEM/ISO workshop
held jointly with the IWCS-7 conference.
Due to a handful of annotation errors and ever-improving data, the
current Semlink will continue to expand as we work to fix a couple of
problems and include additional annotations. All old releases will be kept available and all changes will be thoroughly documented.
Verson 1.2.2 is now available!
Version 1.2.2 contains minor revisions to the mapping files, as well as an
increase in WSJ Tokens to approximately 78,000.