Depends on the sezng web engine we can make

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: of the preceding criteria are measurable: we can quan)fy speed/size   Issue: who is the user we are trying to make happy?   Depends on the seZng   Web engine:   we can make expressiveness precise   User finds what s/he wants and returns to the engine   The key measure: user happiness   Can measure rate of return users   What is this?   Speed of response/size of index are factors   But blindingly fast, useless answers won’t make a user happy   User completes task – search as a means, not end   See Russell hUp://dmrussell.googlepages.com/JCDL ­talk ­ June ­2007 ­short.pdf   eCommerce site: user finds what s/he wants and buys   Need a way of quan)fying user happiness 5   Is it the end ­user, or the eCommerce site, whose happiness we measure?   Measure )me to purchase, or frac)on of searchers who become buyers? 6 1 Sec. 8....
View Full Document

This document was uploaded on 02/26/2014.

Ask a homework question - tutors are online