A combinatorial topology approach of data consolidation.
A data model for indexing and searching XML documents.
A fuzzy shape database to support conceptual design
A GA-P algorithm to automatically formulate extended Boolean queries for a fuzzy information retrieval system.
Although the fuzzy retrieval model constitutes a powerful extension of the Boolean one, being able to deal with the imprecision and subjectivity existing in the Information Retrieval process, users are not usually able to express their query requirements in the form of an extended Boolean query including weights. To solve this problem, different tools to assist the user in the query formulation have been proposed. In this paper, the genetic algorithm-programming technique is considered to build...
A method of constructing the frame of a directed graph
In web search engines, such as Google, the ranking of a particular keyword is determined by mathematical tools, e.g., Pagerank or Hits. However, as the size of the network increases, it becomes increasingly difficult to use keyword ranking to quickly find the information required by an individual user. One reason for this phenomenon is the interference of superfluous information with the link structure. The World Wide Web can be expressed as an enormous directed graph. The purpose of the present...
A model of regular sparsity map representation.
A new uncertainty-aware similarity for user-based collaborative filtering
User-based Collaborative Filtering (UBCF) is a common approach in Recommender Systems (RS). Essentially, UBCF predicts unprovided entries for the target user by selecting similar neighbors. The effectiveness of UBCF greatly depends on the selected similarity measure and the subsequent choice of neighbors. This paper presents a new Uncertainty-Aware Similarity measure "UASim" which enhances CF by accurately calculating how similar, dissimilar, and uncertain users' preferences are. Uncertainty is...
A note on fixpoint techniques in data base recursive logic programs
Accès non uniformément répartis dans une base de données : approche probabiliste et modélisation
Accès non uniformément répartis dans une base de données : généralisation d'une approche probabiliste
Against all Odds: The amazing but most true story of Aviezri Fraenkel and his special favorite: The responsa project or the multi-faceted contributions of Aviezri Fraenkel to information retrieval and the related areas.
Algorithme de décomposition de clés
An Efficient Procedure for Mining Statistically Significant Frequent Itemsets
An optimized soft computing-based passage retrieval system
Arbitrary weight changes in dynamic trees
Bringing introspection into BlobSeer: Towards a self-adaptive distributed data management system
Introspection is the prerequisite of autonomic behavior, the first step towards performance improvement and resource usage optimization for large-scale distributed systems. In grid environments, the task of observing the application behavior is assigned to monitoring systems. However, most of them are designed to provide general resource information and do not consider specific information for higher-level services. More precisely, in the context of data-intensive applications, a specific introspection...
BUDI: Architecture for Fuzzy Search in Documental Repositories.
Catalogues, treillis de catalogues, génération et décomposition
Characteristic sets of a system of equivalence relations
Contributions to automatic construction and optimalization of identification keys