We present a system of architectural design patterns for the implementation of flexible, extensible, and maintainable application tailored network protocol software in end-systems. The pattern system mainly follows a vertical structuring approach. Outsourced De-Multiplexing reduces cross-talk between different protocol sessions. Data-Path Reification assures service extensibility and quality of...

Recently, brain models attempt to support cognitive abilities of artificial organisms. Incremental approaches are often employed to support modelling process. The present work introduces a novel computational framework for incremental brain modelling, which aims at enforcing partial components re-usability. A coevolutionary agent-based approach is followed which utilizes properly formulated neu...

Adaptive learning support for learners becomes very important in the context of increasing re-use of resources from heterogeneous and distributed learning repositories. This paper presents OrPAF, an Adaptive Educational Hypermedia (AEHS) and web-based System which integrates semantic web models and technologies in order to achieve interoperability with e-learning systems. The key feature of OrP...

This paper describes an approach for interworking scenarios between Session Initiation Protocol (SIP) based and non SIP based frameworks (e.g. web services) in case of the presence management service. The characteristics of the concept of a centralized presence management will be introduced. Based on the Parlay X web service framework a presence management service solution has been developed, d...

Enterprises are increasingly using a wide range of heterogeneous information systems for executing and governing their business activities. Even if the adoption of service orientation has improved loose coupling and re-usability, applications are still isolated data silos whose integration requires complex transformations and mediations. However, by leveraging Linked Data principles those data ...

This paper presents a hypermedia learning tool for creating and managing educational content. The produced courses are accessible via the Web through the automatically constructed index. Courseware creation is based on filling and adapting predefined templates. These templates are compiled and linked to dynamically form up a lesson. Courses are stored in a centralized repository accessible via ...

A commercial protease, Esperase, was covalently linked to Eudragit S-100, a reversible soluble–insoluble polymer by carbodiimide coupling. When compared to the native enzyme, the immobilized form presented a lower specific activity towards high molecular weight substrates but a higher thermal stability at all temperatures tested. The optimum pH of the immobilized protease was shifted towards th...

Despite the large body of i* research, there has been comparatively little work on how goal-modelling techniques can help identify usability concerns. Recent work has considered how goal models might better integrate with User-Centered Design. This paper takes an alternative perspective by examining how work in User-Centered Design, specifically Persona Cases, can be re-framed as goal models. W...

The process of verifying a configurable IP is more complex and time-consuming than the IP design. This paper discusses a “divide-and-conquer” functional verification methodology for a highly configurable multi-gigabit transceiver IP used in a FPGA. Verification methods, reusability, hardware emulation and mixed-signal validation are covered to show how the IP is efficiently verified for tape-ou...

This manual is the primary guide to the Harbinger Machine Learning Toolkit (HMLT), which provides implementations for some well-known and frequently used machine learning classifiers. The main concerns in development of HMLT are correctness, effectiveness, transparency, modularity, and re-usability. At the moment, efficiency is not claimed to be a primary concern in any part of the toolkit. Thi...