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Uncertain and imprecise datasets are more and more characterizing actual database applications. These kind of data are likely to be captured by so-called probabilistic data models, which are attracting a great deal of interest from a large community of database researchers. Effectively and efficiently computing OLAP data cubes over probabilistic data is a relevant research challenge that naturally...
This paper describes an approach to the modular specification of XML processing tasks. The approach is language-oriented: it considers the programs that process a type of XML documents to be processors (e.g., compilers or interpreters) for the markup language used in these documents. In addition, it encourages the declarative specification of these processors through attribute grammars. In doing so,...
An ability to account for positive and negative information in the representation of user preferences and intentions is an important facility that can enhance the functionality and usefulness of flexible database querying systems. This is in line with a growing interest in preference modeling. Bipolarity, as a formal representation of positive and negative information, is one of crucial factors in...
While providing online courses that fit students' learning styles has high potential to make learning easier for students, it requires knowing students' learning styles first. This paper demonstrates how the consideration of cognitive traits such as working memory capacity (WMC) can help in detecting learning styles. Previous studies have identified a relationship between learning styles and cognitive...
This paper proposes to enhance search query log analysis by taking into account the semantic properties of query terms. We first describe a method for extracting a global semantic representation of a search query log and then show how we can use it to semantically extract the user interests. The global representation is composed of a taxonomy that organizes query terms based on generalization/specialization...
In the blogosphere, the amount of digital content is expanding and for search engines, new challenges have been imposed. Due to the changing information need, automatic methods are needed to support blog search users to filter information by different facets. In our work, we aim to support blog search with genre and facet information. Since we focus on the news genre, our approach is to classify blogs...
The goal of this paper is to describe a multimodal dialogue system based project developed under EDECÁN architecture for Softec-Ibermática company. The demonstration takes 10 min. aprox.
Human fingerprints are rich in details, here called "minutiae". In this paper, a fingerprint recognition system based on a novel application of the classifier DECOC to the minutiae extraction and on an optimised matching algorithm will be presented. The minutiae extraction has been performed from fingerprint skeletons. To identify the different shapes and types of minutiae, a Data-driven...
One possible threat to linked data quality is the lack of knowledge about the dynamics in dependent remote datasets. Linked data consuming applications often need to be aware of changes in these datasets in order to update local data dependencies. Dataset dynamics recently emerged as an active research topic and methods for the detection, propagation, and description of the dynamics in linked datasets...
In the context of a project aimed at the development of a cooperative and distributed Authoring System to facilitate the production, sharing, and integration of new and existing content from various domains, this work addresses problems related to locating, annotating and reusing audio and video streams distributed over the Internet. The Authoring System allows partial annotations (applied to a part...
In this paper a study on Social Networking for healthcare professionals has been carried out. Starting from the results obtained by the study, the paper proposes an innovative Social Networking platform for healthcare professionals for facilitating access and sharing of health care services. The platform allows to use multimodal interaction and multimodal information by involving technologies such...
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