An Incremental Framework for Adapting the Hypermedia Structure of Multimedia Documents

Abstract

To cite this version:Sébastien Laborie, Jérôme Euzenat. An incremental framework for adapting the hypermedia structure of multimedia documents. Manolis Wallace, Marios Angelides, Phivos Mylonas. Advances in Semantic Media Adaptation and Personalization, 93 (8), Springer, pp.157-176, 2008 Summary. 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.

Semantic adaptation of multimedia documents

“…In the following, we bridge the gap between this semantic adaptation theory and its concrete application to standard multimedia documents, such as SMIL documents [4]. In some earlier works [21,23,24], we have proposed some instantiations and extensions of the proposed semantic framework. In this paper, we take the opportunity to combine these contributions.…”

Authoring of scalable multimedia documents

“…-The second authoring technique, also called "automatic re-authoring", lets software system automatically operate a transformation of the presentation according to each specific device configuration [8] [14]. This approach lightens the burden of content creators by taking care of usage environment constraints but can only be applied to simplistic (e.g.…”

“…In practice, these approaches mostly rely on automated layout rules (usually based on highly structured languages such as SMIL [6], Madeus [12], HTML or highly-templated documents). For instance, the definition of a multimedia document specification given in [14] restricts content production to structured documents to enable automated high-level transformations: "A multimedia document specification s={O,C} is made of a set of multimedia objects O and a set of constraints C between these objects". In this paper, we do not necessarily rely on such structured documents as defined in [7].…”

Semantic Multimedia Document Adaptation with Functional Annotations

“…This approach transforms the relations between multimedia objects and ensures two main properties: (1) all constraints specified in a target client profile are satisfied and (2) the computed adapted document is as close as possible to the initial document. We have shown, e.g., in [11,12], that this framework can adapt the spatiotemporal and the hypermedia dimensions of standard multimedia documents such as SMIL documents [4].…”