Host: The Institute of Image Electronics Engineers of Japan
Co-host: Toho University, Tokyo Denki University, Chiba Institute of Technology, Information Processing Society of Japan
To get the digital content information, to judge whether or not we should buy it is equal to getting the digital content itself. Because the digital data can be easily copied, the digital books tend to have lost the opportunity to be bought when the purchaser would like to have a chance to check the contents before paying for it. On the other hand, when "trial reading" of the digital books cannot be carried out completely, the customer cannot judge in the usefulness and may be unable to purchase. In this paper, we propose a semi-disclosure method of text contents which can give the context and can prompt for the purchase.