background: it has been demonstrated that performing a mock embryo transfer (et) significantly improves the pregnancy rate in ivf cycles. the mock et could be performed prior to the stimulation cycle or immediately before real et. the problem of the first procedure is the possibility of variation in the uterine position and or cervico�uterine angle. objective: the purpose of this study was to d...

Based on the notion of colored and absolute excedances introduced by Bagno and Garber we give an analogue of the derangement polynomials. We obtain some basic properties of these polynomials. Moreover, we define an excedance statistic for the affine Weyl groups of type B̃n, C̃n and D̃n and determine the generating functions of their distributions. This paper is inspired by one of Clark and Ehrenbo...

Résumé. La littérature s’est beaucoup intéressée à l’extraction de règles classiques (ou positives) et peu à l’extraction des règles négatives en raison essentiellement d’une part, du coût de calculs et d’autre part, du nombre prohibitif de règles redondantes et inintéressantes extraites. La démarche que nous avons retenue est de dégager les règles négatives lors de l’extraction des règles posi...

•Lichen sclerosus in females primarily involves the hairless anogenital skin.•Skin tissue outside this area is constitutionally not at risk for lichen sclerosus.•Transplantation into the vulvar field may turn skin susceptible to lichen sclerosus.•Tissue inherent positional information might affect lichen sclerosus susceptibility.

Current vector space models for representing lexical semantics rely on sophisticated dimensional reduction operations. The complex data reduction step introduces a limitation for these models to scale up to take advantage of much larger text corpora. We examine previous work with scalable metrics, and explore the ability of scalable and incremental random vector accumulation (RVA) techniques to...

This paper describes tests of an automated essay grader and critic that uses Latent Semantic Analysis. Several methods which score the quality of the content in essays are described and tested. These methods are compared against human scores for the essays and the results show that LSA can score as accurately as the humans. Finally, we describe the implementation of the essay grader/critic in a...

This paper presents a model based on LSA which attempts to simulate the way humans assess student summaries. It is based on the automatic detection of 5 cognitive operations that student may use in writing a summary. Comparisons with data from 33 human raters show the strengths and limits of this approach.

RÉSUMÉ. Nous faisons l’hypothèse que la mise sous forme hypertexte d’un document atomise l’information dans le sens où les nœuds de l’hypertexte qui sont créés ne sont pas auto-suffisants pour pouvoir être appréhendés. Sous cette hypothèse, le contenu seul du nœud n’est pas suffisant pour l’indexer dans un but de l’insérer dans un système de recherche d’information. Nous avons implémenté et tes...

Latent semantic analysis (LSA) is a model of knowledge representation for words. It works by applying dimension reduction to local co-occurrence data from a large collection of documents after performing singular value decomposition on it. When the reduction is applied, the system forms condensed representations for the words that incorporate higher order associations. The higher order associat...