As communications systems and technology become more advanced and complex, it will be increasingly important to focus on users’ individual needs. Personalization and effective user profile management will be necessary to ensure the uptake and success of new services and devices and it is therefore important to focus on the users’ requirements in this area and define solutions that meet these re...

The object identifier index of an object-oriented database system is typically 20% of the size of the database itself, and for large databases, only a small part of the index fits in main memory. To avoid index retrievals becoming a bottleneck, efficient buffering strategies are needed to minimize the number of disk accesses. In this report, we develop analytical cost models which we use to fin...

One of the World Wide Web characteristics, besides its omnipresence in computer systems, is the adoption of a universal user interface that is used to access several different services that were previously accessed individually by independent applications. The Internet resources started to be identified by URI schemes, a text string with specific syntax and grammar. Although existing for severa...

This document specifies how DNSSEC cryptographic algorithm identifiers in the IANA registries are allocated. It changes the requirement from "standard required" to "RFC Required". It does not change the list of algorithms that are recommended or required for DNSSEC implementations. Information about the current status of this document, any errata, and how to provide feedback on it may be obtain...

We present a novel approach for personal identification and identity verification which utilizes 3D finger surface features as a biometric identifier. Using 3D range images of the hand, a surface representation for the index, middle, and ring finger is calculated and used for comparison to determine subject similarity. We use the curvature based shape index to represent the fingers surface. Gal...