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Ad system that can spot an online shopper

Fed up of sponsored links cluttering up online searches? A new system promises to reduce frustration by only serving up ads to shoppers

FOR an online advert to have an impact, it helps if the audience is interested. A new tool examines the cursor behaviour of search-engine users to decide if they are shopping or merely surfing.

Sites like Google commonly display sponsored results above the actual ones, which can be annoying for someone who鈥檚 not shopping, say and at Emory University in Atlanta, Georgia.

People often use cursor moves to help them pick their way through a screen of text, so the pair wondered if these could be analysed to discern if a person was reading the sponsored ad or not, and so infer their intention.

They created a web browser add-on that tracks the cursor, and found that the data could help to distinguish between a 鈥渂rowsing鈥 and 鈥渟hopping鈥 search session over 96 per cent of the time.

Users often reword their query several times in a search session, so working out intention can help to determine whether or not it is appropriate to display ads in later searches, Agichtein says. 鈥淎s the session progresses, our system would be able to make increasingly accurate predictions of intent.鈥

The pair will present their study at the conference in Geneva, Switzerland, this month.