87,316 research outputs found
Rencontre avec Mathilde Azzopardi et les éditions Verdier
Le 8 février dernier se tenait au sein des murs de l'université d'Aix un entretien avec Mathilde Azzopardi des éditions Verdier. Une discussion passionnante sur l'histoire de la maison d'édition aux couvertures jaunes et autour de l'édition de littérature traduite. Parmi les collections de la maison, beaucoup sont consacrées à la littérature traduite. Selon vous, cela constitue-t-il l’identité de la maison ? Quel est le rôle de la traduction chez Verdier ? Mathilde Azzopardi : Verdier a été f..
Ventral-stream-like shape representation: from pixel intensity values to trainable object-selective COSFIRE models
The remarkable abilities of the primate visual cortex have inspired the construction of computational models of some visual neurons. We propose a trainable hierarchical object recognition model, which we call S-COSFIRE (S stands for Shape and COSFIRE stands for Combination Of Shifted FIlter REsponses) and use it to localize and recognize objects of interests embedded in complex scenes. It is inspired by the visual processing in the ventral stream (V1/V2 -> V4 -> TEO). Recognition and localization of objects embedded in complex scenes is important for many computer vision applications. Most existing methods require prior segmentation of the objects from the background which on its turn requires recognition. A S-COSFIRE filter is automatically configured to be selective for an arrangement of contour-based features that belong to a prototype shape specified by an example. The configuration comprises selecting relevant vertex detectors and determining certain blur and shift parameters. The response is computed as the weighted geometric mean of the blurred and shifted responses of the selected vertex detectors. S-COSFIRE filters share similar properties with some neurons in inferotemporal cortex, which provided inspiration for this work. We demonstrate the effectiveness of S-COSFIRE filters in two applications: letter and keyword spotting in handwritten manuscripts and object spotting in complex scenes for the computer vision system of a domestic robot. S-COSFIRE filters are effective to recognize and localize (deformable) objects in images of complex scenes without requiring prior segmentation. They are versatile trainable shape detectors, conceptually simple and easy to implement. The presented hierarchical shape representation contributes to a better understanding of the brain and to more robust computer vision algorithms
Nannu Ġanninu
Ġabra ta’ poeżiji u proża li tinkludi: Il-mewt, Mulej! ta’ A. Mallia Zarb – Sena ġdida ta’ Ġorġ Borg – Il-mewt ta’ Lakoonte ta’ Patri Ġużeppi Cremona – Carlucciello ta’ Ġer. Azzopardi – Lill-mitħna tar-riħ ta’ M. Anġ. Apap – In-nannu Ġanninu ta’ F. Farrugia.peer-reviewe
Erġ’ibda għidli l-ħrejjef
Ġabra ta’ poeżiji u proża li tinkludi: Iżmerija ta’ F. Mangion – Ftietaq ċkejknin ta’ Ġer. Azzopardi – Bewstek ta’ Joseph Sciberras – Zorro ta’ J. P. Vassallo – Bħall-ward ta’ Joseph Sciberras – Lil ommi mejta ta’ Wallace Ph. Gulia – X’inhija l-ħajja ta’ Michael Agius – Xewqat ta’ Francis P. Mifsud – Dan il-programm ta’ Oliver Friggieri – Erġ’ibda għidli l-ħrejjef ta’ Oliver Friggieri.peer-reviewe
Variations on the Author
“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
La Croce dei Cavalieri di Malta: Emblema-gioiello nell'area Mediterranea
Il saggio presenta una selezione delle principali croci di Malta emblema - gioiello in musei e collezioni private d'Europa con particolare riferimento alle opere di produzione sicilian
Quantitative assessment of the carbocation/carbene character of the gold-carbene bond
The geometric perturbation of the cyclopropyl ring in [LAu(S)]n+ (S = cyclopropyl(methoxy)carbene) complexes has been recently proposed as an indirect experimental probe of the [LAu]n+ electron-donating power, but experimental data are available only for a phosphine ligand [Brooner et al., Chem. Commun., 2014, 50, 2420, L = P(t-Bu)2(o-biphenyl)]. We broaden the study through DFT geometry optimization of a large number of systems, including anionic, neutral and cationic ligands. We combine these results with the accurate calculation, through charge displacement analysis, of the Dewar-Chatt-Duncanson components of the Au-carbene bond. The results demonstrate a linear correlation between the distortion of the cyclopropyl ring (Δd) and the Au → C π back-donation, which enables us to confidently estimate back-donation from a simple geometry optimization or, when available, from experimental data such as X-ray crystal structures. Consequently, Δd can be reliably used to quantitatively determine the position of each system in the continuum between the carbocationic and carbene extremes and the percentage of back-donation that S is able to accept (Pback). In particular, Pback results to be vanishing with cationic ligands, between 18 and 27% with neutral phosphines and carbenes and around 50% with anionic ligands. Finally, we study the effect of the heteroatom on the substrate, showing that the absolute value of the back-donation is enhanced by around 25% when the methoxy is substituted by a methyl group. Despite this, since the absence of the heteroatom also enhances the maximum capacity of the carbene to accept back-donation, the position of the systems in the continuum moves only slightly toward the carbene end. © The Royal Society of Chemistry 2015
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
Newspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
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