The task of speaker recognition is defined and some aspects of the human voice are addressed. Furthermore, the relevant effects of the telephone network on speech are treated. The general structure of a speaker verification system is finally outlined.

Hybrid mobility management schemes integrating mobile IP and SIP for seamless invocation of services in all-IP network , " Telecommunication Systems, 2011. A novel user's authenti-cation scheme for pervasive on-line media services, " Telecommunication Systems,

Security is an increasingly important issue for networked services. However, since networked environments may exhibit varying networking behavior and contain heterogeneous devices with varying resources tunable security services are needed. A tunable security service is a service that provides different security configurations that are selected, and possibly altered, at run-time. In this paper,...

In this paper, we analyse the special security requirements for software support in healthcare and the HealthAgents system in particular. Our security solution consists of a link-anonymised data scheme, a secure data transportation service, a secure data sharing and collection service, and a more advanced access control mechanism. The novel security service architecture, as part of the integrat...

Email plays an important role in the digital economy but is threatened by increasingly sophisticated cybercrimes. A number of security services have been developed, including an email authentication service designed to cope with email threats. It remains unknown how users perceive and evaluate these security services and consequently form their adoption intention. Drawing on the Technology Acce...

News websites provide various kinds of information and have a great contribution in creating knowledge to community citizens. Providing security has a great impact on the usability of these websites and encourages users to trust and share their personal information to take advantages of various facilities on the news website. The main contribution of this paper is to examine if website features...

An experiment was conducted to examine whether word initial pitch accent information could be exploited to reduce possible word candidates by speakers of an accentless dialect in Japan. 40 native high school students from Fukushima were presented with Tokyo Japanese materials used in an earlier study, employing a gating task. Results show that the subjects performed significantly above chance, ...

Wide-spread provision of broadband multimedia services requires a powerful signaling system, which does not exist yet. Future signaling will have to support calls with several participants, several connections and heterogeneous terminals. This paper introduces a new framework for an overall signaling system designed to meet the requirements of multimedia services. An object-oriented call model ...

Written contracts between governments and state enterprises have been widely used in World Bank projects since the first Bank operation supporting performance contracts, a 1975 operation in Senegal. A Bank survey of developing countries found 565 such contracts in thirty-two countries, and another 103,000 in China as of June 1994 (World Bank 1995). Although these performance contracts go by dif...