Search results for "Cliff"
showing 10 items of 57 documents
CliffoSor: A Parallel Embedded Architecture for Geometric Algebra and Computer Graphics
2006
Geometric object representation and their transformations are the two key aspects in computer graphics applications. Traditionally, compute-intensive matrix calculations are involved to model and render 3D scenery. Geometric algebra (a.k.a. Clifford algebra) is gaining growing attention for its natural way to model geometric facts coupled with its being a powerful analytical tool for symbolic calculations. In this paper, the architecture of CliffoSor (Clifford Processor) is introduced. ClifforSor is an embedded parallel coprocessing core that offers direct hardware support to Clifford algebra operators. A prototype implementation on an FPGA board is detailed. Initial test results show more …
Reflektiivisyys ja ajattelun ajatteleminen lukiofilosofiassa
2023
Filosofian oppiaineeseen on aina liitetty lupaus ajattelutaitojen ja itsereflektiivisen ajattelun harjaannuttamisesta. Myös kasvatuksen teoriassa kriittiselle itsereflektiolle on annettu suuri merkitys niin oppimisessa yleisesti kuin uskomusten ja tottumusten uudistumiseen vaikuttavassa kokemuksellisessa oppimisessa erityisesti. Perustelemme reflektiivisyyden tärkeyttä filosofianopetuksessa John Deweyn ja Jack Mezirowin näkemyksillä. Filosofian opettajille on ollut tarjolla vain vähän ainedidaktisia välineitä tukea opiskelijoiden ajattelun itsereflektiota. Analysoimme artikkelissa filosofianopetuksen kokeilua, jossa lukiolaisia ohjattiin ajattelutaitojen itsereflektioon käyttämällä filosofi…
Un clàssic de l'antropologia per fi en català [Ressenya]
2013
Ressenya del gran clàssic de l'antropologia cultural contemporània: Clifford Geertz, La interpretació de les cultures, Traducció de Coral Barrachina, Publicacions de la Universitat de Valencia, Valencia, 2013, 458 pags.
Obra pública en el Museo de Arte Universidad de Navarra
2014
La fotografía de obras públicas forma parte del imaginario del siglo XIX, del mismo modo que otros géneros como el retrato, la reproducción de monumentos y de obras de arte. La fotografía, no sólo es una de las muchas aportaciones que contribuyó al progreso de la sociedad, sino que también se convirtió en un testigo, o mejor, en un notario del proceso de modernización, permitiéndonos sus registros conocer más de cerca aquel proceso de cambio y de desarrollo. La crónica de las Obras Públicas en España desde siglo XIX está representada en las colecciones del Museo Universidad de Navarra, por más de medio millar de fotografías, obra de distintos autores –la mayor parte de origen extranjero afi…
Nambu structures and super-theorem of Amitsur-Levitzki
2004
In this thesis, we establish new polynomial identities in a non commutative combinatorial framework. In the first part, we present new Nambu-Lie structures by classifying all (n-1)-structures in \R^n and we give a method for defining all-order brackets in Lie algebras. We are able to quantify one of our structures, thanks to standard polynomials and even Clifford algebras. In the second part of our work, we generalize the notion of standard polynomials to graded algebras, and we prove an Amitsur-Levitzki type theorem for the Lie superalgebras \osp(1,2n) inspired by Kostant's cohomological interpretation of the classical theorem. We give super versions of properties and results needed in Kos…
Are Female Performances in Other Olympic Distance Running Events Equivalent to Paula Radcliffe's?
2015
« Traduction des miracles et miracle de la traduction: Thomas H. Huxley, traducteur engagé »
2021
Thomas H. Huxley n’est guère connu comme traducteur mais L’Histoire de la translation des bienheureux martyrs S. Marcellin et S. Pierre d’Éginhard, qu’il traduit partiellement en anglais mérite un examen. Publié dans Nineteenth Century l’article « The Value of Witness to the Miraculous » (1889), s’inscrit dans un débat fondamental sur le caractère révélé de la religion chrétienne que mène Huxley en partie contre le monde religieux. Partielle, s’appuyant sur la traduction en français de Toulet et inscrite dans l’éthique de la croyance de W.K. Clifford, elle permet à Huxley d’invalider la valeur du témoignage d’Éginhard. Toujours commentée, sa traduction sert également de couverture au vérita…
La croyance dans le fumoir : “The Portrait of Mr. WH”, l’éthique de la croyance de William Kingdon Clifford et l’assentiment selon John Henry Newman
2023
Wilde’s story “The Portrait of Mr. W.H.” blurs literary genres, asserts the importance of the false and plays with reader expectations. It has generated a substantial exege- sis, perhaps lacking in interest in the multi-faceted debates on belief running through the 1870s-1880s. Wilde takes part in that debate through a text of uncertain status and complex editorial history, contrasting Newmanian assent with W.K. Clifford’s ethics of belief (1877), before asserting the supremacy of desire, thus ruining all assent and epistemically justified belief. To the demanding philosophical-religious theories of Clifford and Newman, Wilde responds with an ambiguous, subversive narrative, intended to com…
An Optimized Architecture for CGA Operations and Its Application to a Simulated Robotic Arm
2022
Conformal geometric algebra (CGA) is a new geometric computation tool that is attracting growing attention in many research fields, such as computer graphics, robotics, and computer vision. Regarding the robotic applications, new approaches based on CGA have been proposed to efficiently solve problems as the inverse kinematics and grasping of a robotic arm. The hardware acceleration of CGA operations is required to meet real-time performance requirements in embedded robotic platforms. In this paper, we present a novel embedded coprocessor for accelerating CGA operations in robotic tasks. Two robotic algorithms, namely, inverse kinematics and grasping of a human-arm-like kinematics chain, ar…
Implementation and evaluation of medical imaging techniques based on conformal geometric algebra
2020
Medical imaging tasks, such as segmentation, 3D modeling, and registration of medical images, involve complex geometric problems, usually solved by standard linear algebra and matrix calculations. In the last few decades, conformal geometric algebra (CGA) has emerged as a new approach to geometric computing that offers a simple and efficient representation of geometric objects and transformations. However, the practical use of CGA-based methods for big data image processing in medical imaging requires fast and efficient implementations of CGA operations to meet both real-time processing constraints and accuracy requirements. The purpose of this study is to present a novel implementation of …