Un système de recherche d'information pour l'e-learning

@article{AhmedOuamer2008UnSD,
  title={Un syst{\`e}me de recherche d'information pour l'e-learning},
  author={Rachid Ahmed-Ouamer and Arezki Hammache},
  journal={Document Num{\'e}rique},
  year={2008},
  volume={11},
  pages={85-105}
}
De nos jours, les ressources disponibles sur le web augmentent considerablement. Dans cet immense entrepot de donnees, les systemes de recherche d’information actuels ne permettent pas de retourner aux utilisateurs les documents repondant exactement a leurs besoins exprimes par une requete sur une collection de documents. Cela est du, en grande partie, aux techniques d’indexation utilisees (mots-cles, thesaurus, etc.). Afin d’ameliorer la pertinence de la recherche d’information, nous proposons… 

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References

SHOWING 1-10 OF 28 REFERENCES

Apport de l'ingénierie ontologique aux environnements de formation à distance

RESUME : Cet article explore le potentiel de l’ontologie et de l’ingenierie ontologique pour augmenter l’intelligence dans les environnements de formation a distance, ainsi que dans la conception de

Query expansion using term relationships in language models for information retrieval

Term relationships are used to expand query model instead of document model, so that query expansion process can be naturally implemented and more sophisticated inferential relationships extracted with Information Flow are exploited.

Active e-document framework ADF: model and tool

A translation approach to portable ontology specifications

This paper describes a mechanism for defining ontologies that are portable over representation systems, basing Ontolingua itself on an ontology of domain-independent, representational idioms.

Investigating Retrieval Performance with Manually-Built Topic Models

This paper investigates retrieval performance with topic models constructed manually based on a hand-crafted directory resource and demonstrates some improvements over relevance models with automatically built topic models based on the directory resource.

Ontology Extraction for Educational Knowledge Bases

It is within the reach of modern tutoring systems to use both knowledge of the student and of the subject’s structure in order to present a subject in a manner that is more coherent and pedagogically sound than currently existing technology.

Semantic cores for representing documents in IR

The proposed approach consists in identifying important concepts in documents using two criterions, co-occurrence and semantic relatedness and then disambiguating them via an external general purpose ontology, namely WordNet.

Variations in relevance judgments and the measurement of retrieval effectiveness

Very high correlations were found among the rankings of systems produced using diAerent relevance judgment sets, indicating that the comparative evaluation of retrieval performance is stable despite substantial diAerences in relevance judgments, and thus reaArm the use of the TREC collections as laboratory tools.

Knowledge Engineering: Principles and Methods

Ontology Mapping: An Information Retrieval and Interactive Activation Network Based Approach

A new generic and scalable ontology mapping approach based on propagation theory, information retrieval technique and artificial intelligence model is proposed, which utilizes both linguistic and structural information, measures the similarity of different elements of ontologies in a vector space model, and deals with constraints using the interactive activation network.