A Case Study in Natural Language Based Web Search - Natural Language Processing and Text Mining - page 83

Fig. 5.10. Tip NavigationwithInFact:eachfactis hyperlinkedto theexact location
where it was found in thesource document.
At the timeofthis writing, an average of 36% of advanced searchusersclick
onthe hot search link “Iran and Nuclear program,” which executes apredefined
search like “Iran > * ∼ nuclear.” However, it is di cultto assess what the user
experience islike because in 80% of cases the userperforms non-search-relatedtasks,
and therefore we don'tknowhow long they spent looking at the results. Note that
usersclickingonthislink may notrealize that theyaregoing to a search engine
page, since thelink title is ambiguous. The resultsofthissearchare quitegood,
and still relevant. The hot searchis an important entry point intoour search site,
as 36% ofall the fact searchqueries executed came fromthissource. It seemslikely
that adding moreofthese hot search linksor otherwise accentuating them onthe
page would significantlyincrease user exposure to naturallanguage basedqueries.
Our analysisofquery logs shows that keyword tips are the most effective way
to migrate users toFactSearch. Users whoclick ontips frequentlyfollowupwith