1,720,964 research outputs found
DOM2AFRAME: Putting the web back in WebVR
No full textAs the Virtual Reality (VR) market continues to grow, so does the
need for high-quality experiences. In order to unlock the wide pool
of existing web-based content, common and more specialized web
browsers allow users to visit existing web pages in VR. Additionally, the latest version of the WebVR [24] standard facilitates the integration of custom 3D/VR content in a web page. Sadly, both options consciously exclude the use of standard 2D web technology (such as HTML and CSS) in other common use cases, such as creating a highly interactive 2D UI for a 3D/VR game. Consequently, web developers wanting to use WebVR are required to learn an entirely new skill set to create VR experiences.
This work surveys and explores workaround options for rendering
2D HTML/CSS/JavaScript-based content in WebVR. We find that existing methods are often too slow to allow for a highly
interactive experience. We introduce DOM2AFrame, a new framework
that couples 2D page elements directly to their equivalent 3D
counterparts (using the A-Frame library [2]) to allow for smooth
updating, animation and user interaction at frame rates close to 60
FPS on modern hardware. Two case studies validate our approach
and show its potential for rendering 2D web content in VR.This work is part of the imec ICON PRO-FLOW project. Robin Marx is a SB PhD fellow at FWO, Research Foundation - Flanders, project number 1S02717
Subsurface scattering oplossen m.b.v. radiale basisfuncties
No full textOm translucente voorwerpen realistisch te renderen, zal het effect van subsurface scattering in rekening gebracht moeten worden. Subsurface scattering wordt algemeen beschreven door de lichttransport vergelijking. Dit is een vrij complexe partiële differentiaal vergelijking. In materialen die highly scattering zijn wordt het licht echter fel verstrooid waardoor de richtingsafhankelijkheid ervan sterk afneemt. Dit laat toe om de lichttransport vergelijking te vereenvoudigen.
Deze vereenvoudigde vergelijking kan opgelost worden m.b.v. numerieke methodes. Bij de meeste numerieke methodes moet het voorwerp gediscretiseerd worden a.d.h.v. een mesh. Het opstellen van zo'n mesh in een 3D domein is niet triviaal. In deze thesis wordt voorgesteld om de Boundary Knot Method te gebruiken om de vergelijking op te lossen. Deze numerieke methode maakt gebruik van radiale basisfuncties om de partiële differentiaal vergelijking op te lossen. Het grote voordeel ervan is dat er geen mesh vereist is
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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