2004) do not move sufficiently beyond the factoid
approach. They account for two types of non-
Figure 1: High level system architecture
factoid questions –list and definitional– but not for
non-factoid answers. In fact, a) TREC defines list
Related work To our knowledge, our system is
questions as questions requiring multiple factoid
among the first to address the need for a different
1https://traloihay.net
approach to non-factoid (complex/controversial)
4 Question Answering Module
answers. Although the three-tiered structure of
our QA module reflects that of a typical web-
The flow between the three QA phases – question
based QA system, e.g. MULDER (Kwok et al.,
processing, document retrieval and answer gener-
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