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See detailAdénocarcinome du canal anal: identification de deux sous-types distincts
Herfs, Michael ULiege

Conference (2017, September 29)

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See detailLe thème d'Hercule dans l'art de la tapisserie (du XVe au XVIIe siècle)
Laruelle, Anne-Sophie ULiege

Conference given outside the academic context (2017)

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See detailComputer vision systems for automatic analysis of face and eye images in specific applications of interpretation of facial expressions
Hoyoux, Thomas ULiege

Doctoral thesis (2017)

This thesis is about the computer vision-based automation of specific tasks of face perception, for specific applications where they are essential. These tasks, and the applications in which they are ... [more ▼]

This thesis is about the computer vision-based automation of specific tasks of face perception, for specific applications where they are essential. These tasks, and the applications in which they are automated, deal with the interpretation of facial expressions. Our first application of interest is the automatic recognition of sign language, as carried out via a chain of automatic systems that extract visual communication cues from the image of a signer, transcribe these visual cues to an intermediary semantic notation, and translate this semantic notation to a comprehensible text in a spoken language. For use within the visual cue extraction part of such a system chain, we propose a computer vision system that automatically extracts facial communication cues from the image of a signer, based on a pre-existing facial landmark point tracking method and its various robust refinements. With this system, our contribution notably lies in the fruitful use of this tracking method and its refinements within a sign language recognition system chain. We consider the facial communication cues extracted by our system as facial expressions with a specific interpretation useful to this application. Our second application of interest is the objective assessment of visual pursuit in patients with a disorder of consciousness. In the clinical practice, this delicate assessment is done by a clinician who manually moves a handheld mirror in front of the patient's face while simultaneously estimating the patient's ability to track this visual stimulus. This clinical setup is appropriate, but the assessment outcome was shown to be sensitive to the clinician's subjectivity. For use with a head-mounted device, we propose a computer vision system that attaches itself to the clinical procedure without disrupting it, and automatically estimates, in an objective way, the patient's ability to perform visual pursuit. Our system, combined with the use of a head-mounted device, therefore takes the form of an assisting technology for the clinician. It is based on the tracking of the patient's pupil and the mirror moved by the clinician, and the comparison of the obtained trajectories. All methods used within our system are simple yet specific instantiations of general methods, for the objective assessment of visual pursuit. We consider the visual pursuit ability extracted by our system as a facial expression with a specific interpretation useful to this application. To some extent, our third application of interest is the general-purpose automatic recognition of facial expression codes in a muscle-based taxonomic coding system. We do not actually provide any new computer vision system for this application. Instead, we consider a supervised classification problem relevant to this application, and we empirically compare the performance of two general classification approaches for solving this problem, namely hierarchical classification and standard classification ("flat" classification, in this comparative context). We also compare these approaches for solving a classification problem relevant to 3D shape recognition, as well as artificial classification problems we generate in a simulation framework of our design. Our contribution lies in the general theoretical conclusions we reach from our empirical study of hierarchical vs. flat classification, which are of interest for properly using hierarchical classification in vision-based recognition problems, for example for an application of facial expression recognition. [less ▲]

Detailed reference viewed: 29 (4 ULiège)
See detailParler le langage de l'ennemi: la revue TINA contre le storytelling
Claisse, Frédéric ULiege

Conference (2017, September 29)

Dans le sillage des analyses de C. Salmon (2007), le storytelling est devenu, en France, un terme repoussoir utilisé pour dénoncer des techniques nouvelles de communication politique, de marketing ou de ... [more ▼]

Dans le sillage des analyses de C. Salmon (2007), le storytelling est devenu, en France, un terme repoussoir utilisé pour dénoncer des techniques nouvelles de communication politique, de marketing ou de gestion des organisations, qui adoptent la forme du récit à des fins explicites d’influence ou de manipulation. Cette mobilisation de « l’art de raconter des histoires » dans des contextes extra-littéraires n’a pas manqué de faire réagir certains écrivains, inquiets de cette concurrence illégitime sur leur propre terrain. En donnant un nom à « l’ennemi », l’essai de Salmon a ainsi eu pour effet de rendre disponible un nouveau répertoire critique et d’ouvrir à de nouveaux questionnements quant aux pouvoirs que pourrait opposer la littérature à cette emprise de la logique marchande, véritable « hold-up sur l’imaginaire ». Cette réaffirmation de la littérature passe par la promotion de la singularité de son rapport au récit et au langage contre leur dévoiement et leur instrumentalisation par le néolibéralisme. Le mouvement critique s’opère à deux niveaux au moins. D’une part, face à l’inauthenticité du langage du storytelling, l’écriture poétique, déjà profondément renouvelée dans ses modes d’expression depuis les années 1990 (Espitallier, 2011), a encore multiplié la production d’ « objets littéraires non identifiés ». Ces derniers, que C. Hanna théorise sous le nom de « dispositifs » (2010), sont caractérisés par un niveau élevé d’expérimentation, dans des formes et des formats qui investissent souvent ou détournent le « langage de l’ennemi » (pour reprendre l’expression de J-C. Masséra), afin de le dynamiter de l’intérieur (E. Arlix, Y. Pagès, H. Jallon). D’autre part, face à l’impuissance dans laquelle nous laissent les récits dominants, le pouvoir qu’ont les récits d’affecter les individus et les collectifs peut être utilisé à des fins d’émancipation, dans une logique « contre-fictionnelle » (Citton, 2010 ; Revue Multitudes 2012), qui mobilise le « pouvoir de scénarisation » afin de revendiquer notre imaginaire captif. En huit numéros publiés entre 2008 et 2011, la revue de « Littératures » TINA a été un laboratoire où ont convergé ces deux formes de critique, artiste et sociale, du storytelling (et plus largement du néolibéralisme dont il est indissociable). C’est ce corpus que nous nous proposons d’analyser dans cette communication. Contre le double constat d’une « désertification de l’espace littéraire » (éditorial du numéro 1) et d’une certaine désaffection de l’extrême-gauche pour la littérature (Quintane, 2014), TINA a renoué avec une conception exigeante de la littérature comme « lieu de tous les savoirs » et de la fiction comme territoire à part entière où explorer des enjeux politiques et sociaux. Sous quelles formes cette convergence entre création littéraire et critique des mondes contemporains s’est-elle manifestée ? Quel jeu de prises ou d’arguments peut-on dégager des nombreux dispositifs expérimentés par la revue, entre la première partie, explicitement fictionnelle, de chaque numéro, et la seconde, centrée sur des « dossiers » (« territoires », « capitalismes », « argent », « Gender surprise », etc.) ? Enfin, quels acteurs (écrivains, artistes, philosophes, sociologues) ont participé à cette aventure qui marque aussi, sous une forme atténuée, le retour d’une certaine logique collective défensive, générationnelle ou groupale (également perceptible au sein du collectif Inculte), dans un champ littéraire de plus en plus menacé dans son autonomie. [less ▲]

Detailed reference viewed: 34 (4 ULiège)
Peer Reviewed
See detailExploring possibilities through imagination. What can be conceived and what can be seen
Leclercq, Bruno ULiege

Conference (2017, September 29)

Detailed reference viewed: 17 (0 ULiège)
See detailLa réalité virtuelle, un outil issu de la recherche et dédié aux traitements des peurs !
Etienne, Anne-Marie ULiege; Stassart, Céline ULiege; Leclercq, Anne-Lise ULiege et al

Speech/Talk (2017)

Une série de projets scientifiques sont en cours dans le domaine des soins de santé globale au sein de la Faculté de Psychologie, Logopédie et Science de l’Education prenant appui sur la technologie de la ... [more ▼]

Une série de projets scientifiques sont en cours dans le domaine des soins de santé globale au sein de la Faculté de Psychologie, Logopédie et Science de l’Education prenant appui sur la technologie de la réalité virtuelle. L’équipe travaille notamment sur la dépendance à l’alcool, la douleur, l’obésité, le bégaiement, etc… Pour ces recherches, elle utilise des environnements virtuels en 3D en temps réel. Ces environnements virtuels permettent de naviguer librement dans des scénarios, d’incorporer progressivement des sensations physiques et émotionnelles et de graduer les interactions au rythme des utilisateurs. [less ▲]

Detailed reference viewed: 46 (5 ULiège)
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See detailPhenomenology and metaphysics
Seron, Denis ULiege

Conference (2017, September 28)

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See detailPrevenzione quaternaria, primum non nocere
Jamoulle, Marc ULiege

Conference (2017, September 28)

When presented in Durham during the 1995 WICC workshop, the concept of quaternary prevention, born in 1986, has attracted the consensus of the whole audience. In 2003 it has been discretely published in ... [more ▼]

When presented in Durham during the 1995 WICC workshop, the concept of quaternary prevention, born in 1986, has attracted the consensus of the whole audience. In 2003 it has been discretely published in the Wonca dictionary of general practice. Since this time, medicine has changed. The diffusion of knowledge and the sagacity of some researchers has shown that medicine could become dangerous for health. The concepts of overinformation, overdiagnosis, overtreatment and overscreening are now the bread and butter of numerous medical journals and the themes of numerous books and disputes throughout the world. Quaternary prevention encompasses all those domains and supersedes them by putting the relationships between patient and doctor at the center of the ethical reflection. WICC has been instrumental in the genesis and dissemination of the concept of quaternary prevention. This concept is now known and distributed worldwide under the acronym P4. Family physicians form interlinked P4 groups in various countries. It is the theme of many congresses and was propelled to the forefront of the recent Wonca Europe Congress. This concept could induce profound changes in the role of the family physician in health care. Moreover, the combination of the four definitions of prevention provided an amazing view of the activity of family physicians and could renew basic job description in GP / FM. [less ▲]

Detailed reference viewed: 32 (0 ULiège)
See detailVitamine D et Vitamin D Binding protein
VRANKEN, Laura ULiege

Conference (2017, September 28)

Detailed reference viewed: 17 (0 ULiège)
See detailLe Stress Oxydant: arnaque ou biologie d'avenir?
LE GOFF, Caroline ULiege

Conference (2017, September 28)

Detailed reference viewed: 24 (0 ULiège)
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See detailLa critique dans l'université contemporaine. Responsabilité et complexité.
Bachelet, Jean-François ULiege

Conference (2017, September 28)

Detailed reference viewed: 10 (1 ULiège)
See detailAltered antimicrobial peptide expression in HPV-related (pre)neoplastic lesions
Lebeau, Alizée ULiege

Conference (2017, September 28)

Detailed reference viewed: 19 (0 ULiège)
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See detailL’organisation du culte islamique en Belgique
Husson, Jean-François ULiege

Conference (2017, September 28)

This paper presents the current organisation of the Muslim community in the context of Islam as a recognised religion in Belgim. The Muslim representative body, mosques and imams and specific aspects ... [more ▼]

This paper presents the current organisation of the Muslim community in the context of Islam as a recognised religion in Belgim. The Muslim representative body, mosques and imams and specific aspects (chaplaincies, religious education,...) are also dealt with. [less ▲]

Detailed reference viewed: 16 (0 ULiège)
Peer Reviewed
See detailDébattre la mesure : l'engagement politique de Steve Reich
Orianne, Jean-François ULiege

Conference (2017, September 28)

Detailed reference viewed: 5 (0 ULiège)
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Peer Reviewed
See detailProtective nature of nano-TiN coatings shaped by EPD on Ti substrates
Mendoza Gallego, Carlos ULiege; Gonzalez, Zoilo; Gordo, Elena et al

in Journal of the European Ceramic Society (2017)

The hardness and corrosion resistance of TiN coatings, processed by Electrophoretic Deposition (EPD) to cover polished and unpolished Ti substrates, have been evaluated. A deposition time of 5 min has ... [more ▼]

The hardness and corrosion resistance of TiN coatings, processed by Electrophoretic Deposition (EPD) to cover polished and unpolished Ti substrates, have been evaluated. A deposition time of 5 min has been enough to obtain a cohesive layer of 7–8 μm in thickness. The coatings were thermally treated in vacuum atmosphere at 1200 °C for 1 h with heating and cooling rates of 5 °C min−1. The surfaces have been covered homogeneously optimizing the properties of the Ti substrates. Uniform and dense TiN coatings have been obtained onto polished substrates, while on unpolished Ti the nitrogen diffuses toward the substrate, moderately dissolving TiN coating. The nanohardness values of the polished samples have been increased from 2.8–4.8 GPa up to 6.5–8.5 GPa. Besides, the corrosion current density has been reduced more than one order of magnitude obtaining a protective efficiency of 82%. These values have been compared with other works in literature where authors used complex and costly processing techniques, demonstrating the strong impact of the colloidal processing over the specific properties of the material. [less ▲]

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Peer Reviewed
See detailA mathematical model of respiration under protective ventilation and extracorporeal CO2 removal therapy
Habran, Simon ULiege; Desaive, Thomas ULiege; MORIMONT, Philippe ULiege et al

Conference (2017, September 27)

The aim of the present study is to build a mathematical model of the respiratory system connected to an extracorporeal CO2 removal device (ECCO2RD) to optimize the gas exchanges efficiency. The model must ... [more ▼]

The aim of the present study is to build a mathematical model of the respiratory system connected to an extracorporeal CO2 removal device (ECCO2RD) to optimize the gas exchanges efficiency. The model must be simple enough to provide rapid solutions and to estimate specific parameters from available clinical data. But it also must be complex enough to be able to simulate the respiratory system when protective ventilation is used and when this system is assisted by an ECCO2RD. [less ▲]

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Peer Reviewed
See detailDevelopment of nuclear SNP markers for the timber tracking of the African tree species Sapelli, Entandrophragma cylindricum
Blanc-Jolivet, Céline; Kersten, Birgit; Bourland, Nils et al

in Conservation Genetics Resources (2017)

We describe the development of new nuclear SNP markers for the genetic timber tracking of the geographical origin of Sapelli, Entandrophragma cylindricum (Meliaceae). Restriction associated DNA sequencing ... [more ▼]

We describe the development of new nuclear SNP markers for the genetic timber tracking of the geographical origin of Sapelli, Entandrophragma cylindricum (Meliaceae). Restriction associated DNA sequencing (RADseq) of two reference individuals yielded 1131 putative SNPs. Among those, 131 were selected to design four MassARRAY multiplexes and screened at 178 individuals. Seventy-two loci were selected for further use in genetic tracking. [less ▲]

Detailed reference viewed: 33 (14 ULiège)
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See detailPhotosharing on flickr: a data source for assessing cultural values in urban landscapes
Ginzarly, Manal ULiege

Conference (2017, September 27)

The urban landscape is a stratification of natural, cultural, and socio-economic processes that shape it spatially and experientially over time. The different cultural values embedded in the tangible and ... [more ▼]

The urban landscape is a stratification of natural, cultural, and socio-economic processes that shape it spatially and experientially over time. The different cultural values embedded in the tangible and intangible attributes of the urban landscape are essential to its unique sense of place, and cultural identity. In the era of globalization, rapid urbanization, and unsustainable urban development, cultural heritage has been recognized as an enabler for sustainable development that adapts, and evolves through time with the changes occurring in the city, and at the same time maintains its identity, integrity, and continuity. In this context, UNESCO recommended the application of the Historic Urban Landscape (HUL) approach to the management of thoughtful change and the conservation of cultural heritage. According to the HUL approach cultural values should be taken as a starting point in urban management and development. It is important that decision makers and experts are aware of the potential and variety of cultural values present within exceptional, ordinary, and even deteriorated urban landscapes. In recent years we have witnessed rapid advances in social networking and photo-sharing communities that are generating big data including geographic information, photos, and commentaries. Our assumption is that the phenomenon of user-generated data from social media offers awareness about the dynamic social interactions within places, and express moments, experiences, practices, and identities contributing to the understanding of cultural values associated with the urban landscape. Accordingly, this paper extracts, analyses, and visualizes photos metadata of Tripoli, Lebanon published on Flickr for the application to the fields of urban management and conservation. [less ▲]

Detailed reference viewed: 18 (3 ULiège)