Generating and visualizing a soccer knowledge base

This demo abstract describes the SmartWeb Ontology-based Information Extraction System (SOBIE). A key feature of SOBIE is that all information is extracted and stored with respect to the SmartWeb ontology. In this way, other components of the systems, which use the same ontology, can access this information in a straightforward way. We will show how information extracted by SOBIE is visualized within its original context, thus enhancing the browsing experience of the end user

Micromechanical Properties of Injection-Molded Starch–Wood Particle Composites

The micromechanical properties of injection molded starch–wood particle composites were investigated as a function of particle content and humidity conditions. The composite materials were characterized by scanning electron microscopy and X-ray diffraction methods. The microhardness of the composites was shown to increase notably with the concentration of the wood particles. In addition,creep behavior under the indenter and temperature dependence were evaluated in terms of the independent contribution of the starch matrix and the wood microparticles to the hardness value. The influence of drying time on the density and weight uptake of the injection-molded composites was highlighted. The results revealed the role of the mechanism of water evaporation, showing that the dependence of water uptake and temperature was greater for the starch–wood composites than for the pure starch sample. Experiments performed during the drying process at 70°C indicated that the wood in the starch composites did not prevent water loss from the samples.Peer reviewe

Investigating a Color Music Interaction System in a Collaborative Music Performance

Abweichender Titel laut Übersetzung der Verfasserin/des VerfassersZsfassung in dt. SpracheMusik spielt in unserem Leben eine bedeutende Rolle und kann mittlerweile in vielen verschiedenen Varianten produziert werden. Mit dem neuen technischen und digitalen Zeitalter entwickelten sich neue Wege der Mensch-Computer Interaktion, um digitale und interaktive Musik zu schaffen. Es gibt mittlerweile eine Vielzahl an Computer- und Softwaresystemen, die den Zugang zum kollaborativen Musikmachen unterstützen. Das Ziel dieser Arbeit war ein Farb-Musik-Interaktionssystem zu entwickeln und adaptieren, das in einer kollaborativen Musik Performance zwischen einem Musiker an einem traditionellen Instrument und anderen musikalischen bzw. nicht musikalischen Teilnehmern mit herkömmlichen farbigen Objekten als Instrumenten zum Einsatz kommt. Genauer gesagt sollte ein passendes System-Setting für die kollaborative Musikinteraktion gefunden werden. Zusätzlich sollte der Ein-uss des Systems und auftretende Verhaltensweisen der Teilnehmer mit den farbigen Objekten analysiert werden. Der Studienablauf beinhaltete eine Testphase des Systems und der Farb-Interaktionsobjekte, sowie eine iterative Systemadaption mit einer darauf folgenden Interaktions- und Verhaltensanalyse. Neben anderen Details brachte die Arbeit Ergebnisse über die unterschiedliche Anwendung der Farb-Interaktionsobjekte und verschiedene Verhaltensmuster während der Musikinteraktion. Ein weiterer Faktor waren die Auswirkungen des Systems und der Objekte auf die Teilnehmer und umgekehrt. Es gehen Vorschläge aus der Arbeit hervor, welche Farb-Objekt-System Einstellungen relevant sein können und was bei der Anwendung dieses Systems für eine kollaborative Musik Performance beachtet werden muss.Music plays a big role in our everyday social life and there are various ways of producing it. The technical era brought up many new possibilities of Human-Computer-Interaction for creating digital interactive music. There are lots of computer and software tools for generating sounds and designing systems for collaborative music-making. The aims of this study were to adapt and install a color-music interaction system for a collaborative music performance with a musician on a conventional music instrument and different attending musical trained and non-musically trained persons with colored everyday objects. A specific goal was to find out a useful tool-system setting for the collaborative music performance. After this, the impact of the system and occurring behavior of the participants with the colored objects were analyzed. The whole study process involved a testing phase of the system and the colored interaction objects, an iterative system adaptation, and a more detailed interaction behavior analysis. Among other things the results show some usage differences between the participants with color interaction objects and according to this some different collaborative behaviors were recognized. A considered factor was the implication of the system with the color objects on the behavior of the attending people through the collaborative music performance and vice versa. Recommendations will be made which tool-system setting can be useful and what has to be minded for adapting and using a color music interaction system in a collaborative music performance.10

Semantic navigation with VIeWs

The paper describes VIeWs, a system that combines ontologies, web-based information extraction, and automatic hyperlinking to enrich web documents with additional relevant background information. The central idea behind VIeWs is to demonstrate how web portals can be dynamically tailored to special interest groups by use of corresponding ontologies. As a particular use case we developed an application for the “saarland.de ” web portal of the Saarland region in Germany, which we present here in some detail. The paper describes the ideas behind the system and the Saarland.de application and provides an overview of the system architecture and components. Additionally, next to a comparison with related work, also some discussion on end user aspects of the application and its connection to the Semantic Web is given. It is argued that VIeWs is a typical end user application that depends on ontologies as semantic models for different scenarios, but that the need for Semantic Web technology beyond this has not been proven yet.

OntoSelect: A Dynamic Ontology Library with Support for Ontology Selection

OntoSelect provides an access point for ontologies on any possible topic or domain that will be updated continuously, organized in a meaningful way and with automatic support for ontology selection in knowledge markup. Unlike the DAML 1 and SchemaWeb 2 ontology libraries, OntoSelect is not based primarily on a static registration of published ontologies, but includes a crawling procedure that monitors the web for any newly published ontologies in the following representation formats: RDF/S, DAML or OWL. Collected ontologies are analyzed using the OWL API (Bechhofer et al., 2003) that allows for the extraction of structure and content of any RDF/S, DAML or OWL ontology. There are currently around 745 ontologies in the OntoSelect library, covering a wide range of topics and domains. Ontologies are stored in a database and are organized according to: format; ontology-, class- and property-names; class- and property-labels. In the following two tables we present some statistics for the ontologies collected so far. Table 1 gives an indication of the distribution of the three representation formats used. Here, it is interesting to see that the OWL format already shows a clear advance over the other two formats, even quite shortly after the finalization of its definition 3