Complex Interactive Question Answering Enhanced with Wikipedia

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Complex Interactive Question Answering Enhanced with Wikipedia - scientific work related to Wikipedia quality published in 2007, written by Ian MacKinnon and Olga Vechtomova.


In ciQA, templates are used with several bracketed items authors call ”facets” which are the basis of information being sought. This information is returned in the form of nuggets. Due to the concepts being sought having multiple terms to describe them, it becomes difficult to determine which sentences in the AQUAINT-2 news articles contain the query terms being sought, as they may be represented in the parent document by a variety of different phrases still making reference to the query term. For example, if the term ”John McCain” were being sought, it might appear in an article, however, the sentence which is the vital nugget may simply contain ”Senator McCain”; an imperfect match. Traditional query expansion[5] of facets would introduce new terms which are related but do not necessarily mean the same as the original facet. This does not always help the problem of query terms appearing in relevant documents but not relevant sentences within documents, it only introduces related terms which cannot be considered synonymous with the facet being retrieved. In this year’s TREC, authors hope to overcome some of this problem by looking for synonyms for facets using Wikipedia. Many of the ciQA facets are proper nouns and most thesauri, such as WordNet, do not contain entries for these. Thus, a new manner of finding synonyms must be found. In recent years, several new approaches have been proposed to use Wikipedia as a source of lexical information[2, 7], as it can be downloaded in its entirety, and contains relatively high quality articles[3]. 2 Wikipedia