Sébastien Laborie
French Institute for Research in Computer Science and Automation
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Publication
Featured researches published by Sébastien Laborie.
artificial intelligence methodology systems applications | 2006
Sébastien Laborie
The multiplication of execution contexts for multimedia documents requires the adaptation of the document specification to the particularities of the contexts. In this paper, we propose to apply a semantic approach for multimedia document adaptation to the spatio-temporal dimension of documents. To guarantee that the adapted document is close to the initial one respecting adaptation constraints, we define proximities for adapting static documents (i.e., documents without animations) and animated documents. Moreover, we show that these proximities can be refined according to multimedia object properties (e.g., images, videos...). The approach is illustrated by an example.
Proceedings of the 2007 international workshop on Semantically aware document processing and indexing | 2007
Sébastien Laborie; Jérôme Euzenat; Nabil Layaïda
The multiplication of presentation contexts (such as mobile phones, PDAs) for multimedia documents requires the adaptation of document specifications. In an earlier work, a semantic framework for multimedia document adaptation was proposed. This framework deals with the semantics of the document composition by transforming the relations between multimedia objects. However, it was lacking the capability of suppressing multimedia objects. In this paper, we extend the proposed adaptation with this capability. Thanks to this extension, we present a method for summarizing multimedia documents. Moreover, when multimedia objects are removed, the resulted document satisfies some properties such as presentation contiguity. To validate our framework, we adapt standard multimedia documents such as SMIL documents.
document engineering | 2008
Faisal Alkhateeb; Sébastien Laborie
RDF is one of the most used languages for resource description and SPARQL has become its standard query language. Nonetheless, SPARQL remains limited to generate automatically documents from RDF repositories, as it can be used to construct only RDF documents. We propose in this paper an extension to SPARQL that allows to generate any kind of XML documents from multiple RDF data and a given XML template. Thanks to this extension, an XML template can itself contain SPARQL queries that can import template instances. Such an approach allows to reuse templates, divide related information into various templates and avoid templates containing mixed languages. Moreover, reasoning capabilities can be exploited using RDF Schema or simply RDFS.
document engineering | 2011
Sébastien Laborie; Thierry Nodenot
Many Web-based geographic applications have been developed in various domains, such as tourism, education, surveillance and military. However, developing such applications is a cumbersome task because it requires several types of components (e.g., maps, contents, indexing services, databases) that have to be assembled together. Hence, developers have to deal with different technologies and application behavior models. In order to create Web-based geographic applications and overcome these design problems, we propose a framework composed of three complementary tasks: identifying some desired data, building the graphical layout organization and defining potential user interactions. According to this framework, we have specified a unified model and we have encoded it using Semantic Web technologies, such as RDF. Through a prototype named WINDMash, we have implemented some tools that instantiate our model and automatically generate concrete Internet geographic applications that can be executed on Web browsers.
Advances in Semantic Media Adaptation and Personalization | 2008
Sébastien Laborie; Jérôme Euzenat
The multiplication of presentation contexts (such as mobile phones, PDAs) for multimedia documents requires the adaptation of document specifications. In an earlier work, a semantic approach for multimedia document adaptation was proposed. This framework deals with the semantics of the document composition by transforming the relations between multimedia objects. In this chapter, we apply the defined framework to the hypermedia dimension of documents, i.e., hypermedia links between multimedia objects. By considering hypermedia links as particular objects of the document, we adapt the hypermedia dimension with the temporal dimension. However, due to the non-deterministic character of the hypermedia structure, the document is organized in several loosely dependent sub-specifications. To preserve the adaptation framework, we propose a first straightforward strategy that consists of adapting all sub-specifications generated by the hypermedia structure. Nevertheless, this strategy has several drawbacks, e.g., the profile is not able to change between user interactions. Hence, we propose an incremental approach which adapts document sub-specifications step by step according to these interactions. To validate this framework, we adapt real standard multimedia documents such as SMIL documents.
international workshop on semantic media adaptation and personalization | 2007
Sébastien Laborie; Antoine Zimmermann
The World Wide Web can be accessed through a number of different devices, each having its own capabilities and limitations. Additionally, the content of the Web is increasing tremendously in size and variety. Yet, many devices do not embed support for all types of media and formats. Therefore, in order to provide as much information as possible to all kind of devices, media items have to be adapted. In this paper, we propose to adapt them by replacing incompatible media items by others found on the Web. The adapted media items must convey the same message as the original ones, while satisfying the target profile. We present a possible architecture to implement this and we show that search engines can already achieve this to a limited extent. Nonetheless, some results are unsatisfactory because media annotations lack semantics, are partial and are heterogeneous. Hence, we propose to use semantic Web technologies, such as RDF descriptions, ontologies, ontology merging and matching, in order to select better alternatives, thus improving this adaptation framework.
international symposium on temporal representation and reasoning | 2007
Jean-François Baget; Sébastien Laborie
Checking satisfiability of temporal constraint networks involves infinite variables domains. We explore a solution based upon finite partitions of infinite domains. Though a straightforward partition results in a sound and complete backtrack, its extension to forward checking is not complete. Using bi-intervals, we obtain sound and complete backtrack and forward checking algorithms. Moreover, we show that bi-intervals used in a hybrid algorithm which also instantiates constraints improve backtrack efficiency.
international workshop on semantic media adaptation and personalization | 2006
Sébastien Laborie; Jérôme Euzenat
The multiplication of execution contexts for multimedia documents requires the adaptation of document specifications. We proposed a semantic approach for multimedia document adaptation. This paper extends this framework to the hypermedia dimension of multimedia documents, i.e., hypermedia links between multimedia objects. By considering hypermedia links as particular objects of the document, it is possible to adapt the hypermedia dimension with other dimensions like the temporal one. However, due to the hypermedia structure, several specifications have to be considered. Thus, to preserve our adaptation framework, we propose a first straightforward strategy that consists of adapting all specifications generated by the hypermedia structure. However, we show that this one has several drawbacks, e.g., its high computational costs. Hence, we propose to adapt document specifications step by step according to the user interactions.
LNCS Transactions on Large-Scale Data- and Knowledge-Centered Systems XXXI - Volume 10140 | 2016
Christophe Marquesuzaí; Patrick Etcheverry; Sébastien Laborie; Thierry Nodenot
This paper deals with models and tools allowing designers of geographic web application to focus on the design work rather than on the related coding problems. The contributions of this paper are a specific design model and its associated design environement. The proposed design model is composed of elements that can be translated, through transformation model technics, into executable source code taking into account high-level specifications of the designers. This automated code generation property offers a design approach based on short cycles where designers may adjust their specifications until the generated application matches their requirements. To facilitate this process, the proposed model has been integrated into a graphical web-based environment allowing designers to visually express their specifications and then to generate and to execute the specified application.
international workshop on semantic media adaptation and personalization | 2009
Sébastien Laborie; Jérôme Euzenat; Nabil Layaïda
The diversity of presentation contexts for multimedia documents requires the adaptation of document specifications. In an earlier work, we have proposed a semantic adaptation framework for multimedia documents. This framework captures the semantics of the document composition and transforms the relations between multimedia objects according to adaptation constraints. In this paper,we show that relying on document composition alone for adaptation restricts the set of relevant candidate solutions and may even divert the adaptation from the authors intent.Hence, we propose to introduce functional annotations to guide the adaptation process. Theses annotations allow to refine the role of multimedia objects in the document. We show that SMIL documents could embed functional annotations encoded in RDF. These multimedia documents are then adapted thanks to an interactive adaptation tool.