Capsule summary. Helicopter-borne observations with unprecedented high resolution provide new insights in the fine-scale structure of marine boundary layer clouds and aerosol stratification over the Eastern North Atlantic.

Abstract:In this paper we look at the deployment of web usage mining results within two key application areas of web measurement and knowledge generation for personalisation. We take a fresh look at the model of interaction between business and visitors to their web sites and the sources of data generated during these interactions. We then look at previous attempts at measuring the effectiveness of the web as a channel to customers and describe our approach, based on scenario development and measurement to gain insights into customer behaviour. We then present Concerto, a platform for deploying knowledge on customer behaviour with the aim of providing a more personalized service. We also look at approaches to measuring the effectiveness of the personalization. Various standards that are emerging in the market that can ease the integration effort of personalization and similar knowledge deployment engines within the existing IT infrastructure of an organization are also presented. Finally, current challenges in the deployment of web usage mining are presented.

Abstract. Using a browsing context is one of the keys to web site access personalization under particular constraints. With poor user information modeling, which is a common situation, a web site cannot be adapted to the current user. Assuming the current clickstream is the only known information about a web site user (no profile, no past sessions, no identification, no content analysis of viewed pages), we propose here a method to enrich the browsing context and enhance the current user model. In a batch mode, profile-based enriched navigation patterns are computed. In on-line mode, Navire, a personal agent and its matching rule engine continually re-adapts the browsing context with pre-calculated profiles. Based on the current up-to-date context, Navire personalizes the access to a web site.