Abstract
Over a span of three years, we have constructed and improved four corpora that are the basis for generating summaries for the verification of information credibility. The summary generated to verify the credibility of information is a brief document composed of extracts from Web documents; it provides material to the user for judging the validity of a statement. In this paper, we describe a set of tags designed for observing annotation and preparing a gold standard for the summary. Further, we describe the method of annotation. Because examining each web document for its appropriateness in contributing to the summary is difficult, we describe the methodology of obtaining appropriate documents. Furthermore, we share our observations and learnings from the process of constructing these corpora.
