Research

2005--2007: 'access control'; 'distributed systems'; 'event-based middleware'; 'multi-domain publish/subscribe systems'; 'multimedia applications'; 'hybrid network environments'; 'business process automation'; 'mobile ad hoc networks'; 'smart-care services'; 'wireless sensor network technologies'; 'publish/subscribe middleware architectures'; 'mobile peer-to-peer environments'; 'ubiquitous computing'; 'ad hoc networks'; 'distributed event-based middleware'; 'publish/subscribe over mobile ad hoc networks'; 'resource-awareness in wireless sensor networks'; 'enhanced filtering in sensor-based publish/subscribe systems'; 'dynamic role settings in telecare services'; 'computer-assisted legal inference'; 'dynamic group communication'; 'impaired users'; 'publish/subscribe protocol'; 'dynamic trust domains'; 'technology-assisted living'; 'practical synthesis'; 'content-based publish/subscribe middleware'; 'minimal deontic ontology'; 'legal cases';

2000--2004: 'access control'; 'distributed systems'; 'e-commerce applications'; 'active security'; 'event-based middleware'; 'distributed services'; 'multi-domain publish/subscribe systems'; 'business contracts'; 'multimedia applications'; 'business process automation'; 'mobile ad hoc networks'; 'ad hoc networks'; 'publish-subscribe paradigm'; 'distributed event-based middleware'; 'publish-subscribe paradigm over wireless networks'; 'publish/subscribe over mobile ad hoc networks'; 'store-and-forward messaging in mobile networks'; 'heterogeneous networks'; 'event-centric business rules'; 'event distribution'; 'tutorial task'; 'peer-to-peer overlay broker networks'; 'ubiquitous collaboration'; 'event order';

1995--1999: 'access control'; 'e-commerce applications'; 'multimedia applications'; 'middleware support'; 'scalable federation of heterogeneous components'; 'computer-supported collaboration'; 'distributed event-based middleware'; 'mobile users';