Abstract. Document length is widely recognized as an important factor for adjusting retrieval systems. Many models tend to favor the retrieval of either short or long documents and...
An analysis of steganographic systems subject to the following perfect undetectability condition is presented in this paper. Following embedding of the message into the covertext,...
Abstract Research in information security, risk management and investment has grown in importance over the last few years. However, without reliable estimates on attack probabiliti...
Abstract-- Mobile location estimation is becoming an important value-added service for a mobile phone operator. It is well-known that GPS can provide an accurate location estimatio...
Abstract: In this paper we present and discuss a new approach for securing multimedia communication, which is based on three innovations. The first innovation is the integration of...
Helmut Hlavacs, Wilfried N. Gansterer, Hannes Scha...