This paper presents a method for automatically generating an association thesaurus from a text corpus, and demonstrates its application to information retrieval. The thesaurus generation method .consists of extracting tenns and co-occurrence data from a corpus and analyzing the correlation between terms statistically. A new method for disambiguating the structure of compound nouns, which is a k...

Extraction of bone contours from x-ray images is an important first step in computer analysis of medical images. It is more complex than the segmentation of CT and MR images because the regions delineated by bone contours are highly nonuniform in intensity and texture. Classical segmentation algorithms based on homogeneity criteria are not applicable. This paper presents a model-based approach ...

Extracting useful information from social networks raises several challenges that still represent open research issues. In this paper we focus on the problem of extracting geolocated images from Tweets to support emergency response. A Tweet analysis process is discussed, focusing on the selection of posts, their geolocation based on their text content, and the subsequent analysis of the images ...

The acquisition of multiword terms from large text collections is a fundamental issue in the context of Information Retrieval. Indeed, their identification leads to improvements in the indexing process and allows guiding the user in his search for information. In this paper, we present an original methodology that allows extracting multiword terms by either (1) exclusively considering statistic...

We investigate the properties of interference fragmentation functions arising from the emission of two leading hadrons inside the same jet for inclusive leptonnucleon deep-inelastic scattering. Using an extended spectator model for the mechanism of the hadronization, we give a complete calculation and numerical estimates for the examples of a proton-pion pair produced with invariant mass on the...

Wadis, ephemeral dry rivers in arid desert regions that contain water in the rainy season, are often manifested as braided linear channels and are of vital importance for local hydrological environments and regional hydrological management. Conventional methods for effectively delineating wadis from heterogeneous backgrounds are limited for the following reasons: (1) the occurrence of numerous ...

The origin of the graviton from string theory is well understood: it corresponds to a massless state in closed spectra, whose low-energy effective action, as extracted scattering amplitudes, that Einstein-Hilbert. In this work, we explore possibility such string-theoretic emergence ghost-free bimetric theory, recently proposed involves two dynamical metrics, around particular backgrounds propag...