A series of different automatic query expansion techniques has been suggested in Information Retrieval. To estimate how suitable a document term is as an expansion term, the most popular of them use a measure of the frequency of the co-occurrence of this term with one or several query terms. The benefit of the use of the linguistic relations that hold between query terms is often questioned. If...

Exemple : 1 ère itération : travail administratif 2 ème itération : responsabilité de travail-administratif À chaque itération, les collocations binaires (et ternaires pour les collocations prépositionnelles) sont sélectionnées avec une mesure statistique et l'ajout de paramètres [Roche et al., 2004]. Corpus étudiés :-Corpus de Ressources Humaines (société PerformanSe) – 3784 Ko (en français)-C...

Collocations are important for many tasks of Natural language processing such as information retrieval, machine translation, computational lexicography etc. So far many statistical methods have been used for collocation extraction. Almost all the methods form a classical crisp set of collocation. We propose a fuzzy logic approach of collocation extraction to form a fuzzy set of collocations in ...

A normalization database is considered as mathematics logical design to avoid redundancies and inconsistencies in the stored data which brought about null data and many relationship tables in the physical database. A retrieval rate is affected directly in running a practical system of the normalization design. We argue in the paper that rate formulas given out retrieval speed via testing the va...

Noun-Noun compounds, as a subset of Compound Nouns as well as Nominal Compounds play an important role in NLP applications like Machine Translation, Information Retrieval because of the token frequency, type frequency and their occurrence in the world’s languages. Recognition of MWEs requires deep or shallow syntactic preprocessing tools and large corpora. The problem is quite difficult in Beng...