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Auflistung nach Autor:in "Bouayad-Agha, Nadjet"

1 - 3 von 3
  • Konferenzbeitrag
    Generation of Multilingual Personalized Environmental Bulletins from an OWL-based Ontology
    (EnviroInfo Dessau 2012, Part 2: Open Data and Industrial Ecological Management, 2012) Bouayad-Agha, Nadjet; Casamayor, Gerard; Mille, Simon; Rospocher, Marco; Serafini, Luciano; Moßgraber, Jürgen; Wanner, Leo
    In this paper, we tackle the problem of generation of user-oriented multilingual environmental information from ontologies in the context of a personalized environmental decision support service. We present a unified multiple layer ontology framework modeled in OWL that consists of three ontology layers: the domain ontology, the domain communication ontology, and the communication ontology. The domain ontology contains factual application-neutral concept configurations and relations. The domain communication ontology models data aggregation, qualitative interpretation of numerical data, user tailored warnings and recommendations triggered by an environmental condition given in a specific context, etc., while the communication ontology specifies knowledge needed for the tasks involved in the generation process, and is populated using a pipeline of SPARQL queries. We show how a large scale instantiation of this framework in the environmental domain serves multilingual NLG.
  • Konferenzbeitrag
    Involving the Expert in the Delivery of Environmental Information from the Web
    (Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Wanner, Leo; Bosch, Harald; Vrochidis, Stefanos; Bouayad-Agha, Nadjet; Casamayor, Gerard; Johansson, Lasse; Karppinen, Ari; Moumtzidou, Anastasia; Kompatsiaris, Ioannis; Ertl, Thomas
    Automatic provision of accurate user need- and profile-tailored environmental information is of increasing demand. However, it is a challenging task with many facets. Among them is the difficulty to compile and cast into a formal representation all the expert knowledge needed to accurately and exhaustively acquire, assess and process the data in order to be able to reliably judge their relevance to the user and to produce an adequate summary and recommendations. Studies in Human-Computer Interaction show that both the satisfaction of the users with an application and the objective performance of a service increases if the users (in particular, experts) are assigned an active role in the system. Based on this insight, we propose a largely interactive environmental information acquisition and generation framework. The PESCaDO service involves the experts in four central tasks: (i) determination of criteria for the search of environmental nodes in the web; (ii) assessment of the relevance of the identified nodes; (iii) assessment of the quality of the data provided by the nodes, and (iv) selection of the content to be communicated to the user. Quantitative evaluations and user trials show that the performance of the system is good and the satisfaction with the service is high.
  • Konferenzbeitrag
    Text Planning of Air Quality Information
    (Environmental Informatics and Systems Research, 2007) Bouayad-Agha, Nadjet; Wanner, Leo
    Two of the premises of the Multimodal Air Quality Information System known as MARQUIS are that (1) air quality information is dynamic (i.e., it might change every hour) and different data variations should be expressed differently, (2) people have different expertises, needs and interests about air quality and this must be reflected in the content and style in which this information is conveyed to them. The text planning module in MARQUIS achieves precisely that: it selects the content that is of relevance to a specific user from the mass of air quality information produced by the interpretation module, and arranges this information into a coherent discourse that takes into account the dynamic content and the profile of the user in the required platform. In this paper, we describe how we addressed these issues of dynamic content selection (section 2) and user modelling (section 3) in the text planning system of the MARQUIS project. These play an active role in the production of the ouput text plan (section 4) as they contrain the order of propositions and the types of discourse relations that occur between the propositions (section 5). We describe the architecture of the text planner (section 6) before giving some conclusions (section 7).