关键词: 点击付费;点击欺诈;光学字符识别;粘连;验证码

Abstract:

The search engine companies and pay-per-click model have been questioned because of click fraud. Click fraud has become one of the major diseases in the online advertising industry. Aiming at the difficulties faced by the online advertising industry, a graphics-based authentication code to prevent click fraud strategy was proposed. The strategy can shield effectively software click fraud similar to the clicker, and shield effectively viewers unconscious accidental invalid clicks, and reduce significantly the efficiency of artificial click fraud.

Key words: pay-per-click;fraud clicking;optical character recognition;adhesion;verification code