| 1. |
- Fakas, Georgios, et al.
(författare)
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Electronic roads : intelligent navigation through multi-contextual information
- 2004
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Ingår i: Knowledge and Information Systems. - : Springer-Verlag. - 0219-1377 .- 0219-3116. ; 6:1, s. 103-124
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Tidskriftsartikel (refereegranskat)abstract
- This paper proposes a model for intelligent navigation through multi-contextual information that could form electronic roads in the information society. This paper aims to address the problem of electronic information roads, define their notion and the technical form they can take as well as present the tools developed for implementing such a system. The main objective of the proposed model is to give the traveler the capability of exploring the information space in a natural way where the information offered will remain continuously interesting. The system offers links to information in a dynamic and adaptive way. This is achieved by employing intelligent navigation techniques, which combine user profiling and meta-data. Electronic roads emphasize the presentation of multi-contextual information, i.e., information that is semantically related but of different nature at different locations and time. An electronic road is the user’s navigation path through a series of information units. Information units are the building blocks of the available cultural information content.
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| 2. |
- Kakas, Antonis, et al.
(författare)
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Reasoning about Actions, Narratives, and Ramifications
- 1997
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The Language E is a simple declarative language for describing the effects of action occurrences within a given narrative, using an ontology of actions, time points and fluents (i.e. properties which can change their truth values over time). This paper shows how E may be extended to deal with ramifications. More precisely, we show how Language E domain descriptions can include statements describing permanent relationships or constraints between fluents, and how the model theoretic semantics of E can be extended in an intuitive way to ensure that the effects of actions are appropriately propagated via such statements, whilst retaining E's simple approach to the frame problem. We also show how Event Calculus style logic programs may be used to compute consequences of such domain descriptions using standard SLDNF, even when only incomplete information is given about some initial state of affairs. Because of E's generality, these techniques are easily adaptable to other formalisms for reasoning about actions, such as the Language A and the Situation Calculus.
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