Trellis provides an interactive environment that allows users to add their observations, opinions, and conclusions as they analyze information by making semantic annotations to documents and other on-line resources. Our work to date has concentrated on three major areas: 1) designing a vocabulary to annotate information analysis, 2) creating semantic markup representations for this vocabulary and annotating analysis products, and 3) developing an initial prototype of the Trellis interface and tools.
Trellis (rich format) includes a vocabulary for semantic annotations of decisions and tradeoffs. The initial version of this vocabulary is now available as a schema/ontology in XMLS, RDFS, and OWL. Trellis allows users to extend this vocabulary and its corresponding schemas. For each analysis performed by a user with Trellis, the system generates annotations in XML, RDF, and OWL according to the schemas and ontologies for the Trellis annotation vocabulary. Users can extend the vocabulary using the Trellis interface, adding perhaps domain specific terms or constructs that are useful to their particular task.
We have exercised Trellis to date with a variety of scenarios to annotate tradeoffs and decisions (e.g., travel), organizing materials (e.g., search results), analyzing disagreements and controversies on a topic (e.g., political debates), and handling incomplete information (e.g., genealogy research).
Download ("rich" flavor only). Contact us if you are interested in dowloading other flavors.