TAILIEUCHUNG - Handbook of Multimedia for Digital Entertainment and Arts- P4

Handbook of Multimedia for Digital Entertainment and Arts- P4: The advances in computer entertainment, multi-player and online games, technology-enabled art, culture and performance have created a new form of entertainment and art, which attracts and absorbs their participants. The fantastic success of this new field has influenced the development of the new digital entertainment industry and related products and services, which has impacted every aspect of our lives. | 3 Semantic-Based Framework for Integration and Personalization 77 Via the User Model Service UMS it is possible to set both context-independent values like . the user s birthday is 09 05 1975 or the user has a hearing disability as well as context-dependent values like the user rates program p with value 5 in the evening . However all these statements must adhere to the user model schema containing the semantics which is publicly available. In this way the system understands the given information and is thus able to exploit it properly. If the system for example needs to filter out all adult content for users whose age is under 18 years old the filter needs to know which value from the user profile it needs to parse in order to find the user s age. Therefore all the information added to the profile must fit in the RDF schema of the user model. However since we are working with public services it might be that an application wants to add information which does not fit yet in the available schema. In that case this extra schema information should first be added to the ontology pool maintained by the Ontology Service. Once these extra schema triples are added there the UMS can accept values for the new properties. Afterwards the FS can accept rules which make use of these new schema properties. Context Like previously mentioned in order to discern between different situations in which user data was amassed we rely on the concept of context. The context in which a new statement was added to the user profile tells us how to interpret it. In broader sense context can be seen as a description of the physical environment of the user on a certain fixed point in time. Some contextual aspects are particularly important for describing a user s situation while dealing with television programs Time When is a statement in the profile valid It is important to know when a specific statement holds. A user can like a program in the evening but not in the morning Platform Location

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