1,720,971 research outputs found
Telecommunication-Telemedia-Assessment/AVT-ECoClass-VR: v1.0.4
No full text<p>This is a repository with data related to the AVT-ECoClass-VR database that is published at the IEEE QoMEX 2024 conference in the following paper:</p>
<pre><code>@inproceedings{fremerey2024avt,
author = {Stephan Fremerey and Carolin Breuer and Larissa Leist and Maria Klatte and Janina Fels and Alexander Raake},
title = {AVT-ECoClass-VR: An open-source audiovisual 360 video and immersive CGI multi-talker dataset to evaluate cognitive performance},
booktitle="2024 16th International Conference on Quality of Multimedia Experience (QoMEX)",
year = {2024},
note = {to appear}
}
</code></pre>
<p>This work is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project ECoClass-VR (DFG-444697733).</p>
<p><strong>Important:</strong> to download some contents of the dataset it is needed to use the provided tool, because they could not be hosted in this repository.</p>
<p>It contains the following contents:</p>
<ul>
<li><code>360_videos</code><ul>
<li><code>360_video_recordings</code>: 220 different video recordings (MOV, GoPro CineForm HD codec, 7680x3840, 29.97 fps), 360° image of the classroom</li>
<li><code>360_video_samples</code>: Set of 65 pre-rendered 360° video recordings for 5 subjects in ERP format encoded with libx265 and CRF of 1 (MP4, HEVC codec, 7680x3840, 29.97 fps)</li>
<li><code>miscellaneous</code>: Python scripts for potential generation of further 360° video recordings and JSON files</li>
</ul>
</li>
<li><code>3d_models_scans</code><ul>
<li><code>3d_scans</code>: Non-rigged 3D scans of 20 different persons</li>
<li><code>rigged_3d_models</code>: Rigged 3D models of 20 different persons</li>
<li><code>school</code>: 3D model of classroom in DAE and SKP data format</li>
</ul>
</li>
<li><code>audio</code>: 200 different single-channel audio recordings (WAV, pcm_s24le codec, 48000 Hz)</li>
<li><code>ecoclass-vr_av-sa_360</code> : 360° implementation of the IVE</li>
<li><code>ecoclass-vr_av-sa_cgi</code>: CGI implementation of the IVE</li>
<li><code>subjective_data</code>: Example output data from 5 subjects<ul>
<li><code>av-sa_360_binaural</code>: Example output data (head rotation and speaker-to-story mappings) for the 360° IVE (binaural audio condition)</li>
<li><code>av-sa_cgi_binaural</code>: Example output data (head rotation and speaker-to-story mappings) for the CGI IVE (binaural audio condition)</li>
</ul>
</li>
</ul>
<p>Please cf. the paper for more details and the README of the respective IVE to get more information on how to get them running.</p>
Telecommunication-Telemedia-Assessment/360_testcontent: v1.0.0
No full text<p>This repository contains some publicly available 360° videos.</p>
<p>If you use any or parts of the material included in this dataset, please cite the following paper:</p>
<p>For material in <code>/EI2019</code>:</p>
<pre><code>@article{hofmeyer2019impacts,
title={Impacts of internal HMD playback processing on subjective quality perception},
author={Hofmeyer, Frank and Fremerey, Stephan and Cohrs, Thaden and Raake, Alexander},
journal={Electronic Imaging},
volume={31},
pages={1--7},
year={2019},
publisher={Society for Imaging Science and Technology}
}
</code></pre>
Telecommunication-Telemedia-Assessment/AVTrack360: v1.0.0
No full text<p>This repository contains AVTrack360, a tool for recording the 3 rotation angles Pitch/Yaw/Roll around the 3 Axes X/Y/Z while a user is watching an omnidirectional video via an HMD. The recorded data can also be evaluated. A dataset of 48 people (25 female, 23 male subjects) watching 20 different omnidirectional videos with 30s duration is also included. The Simulator Sickness Questionnaire Scores after every session are also included. It also contains the free available <a href="http://www.whirligig.xyz/new-page-3">Whirligig 360° player</a> in v3.92.</p>
<p>If you use any or parts of the tools included or the dataset or parts of it, please cite the following paper:</p>
<pre><code>@article{fremerey2018avtrack360,
title={AVTrack360: An open Dataset and Software recording people's Head Rotations watching 360° Contents on an HMD},
author={Fremerey, Stephan and Singla, Ashutosh and Meseberg, Kay and Raake, Alexander},
booktitle={ACM Multimedia Systems Conference 2018},
pages={1--6},
year={2018}
}
</code></pre>
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
Telecommunication-Telemedia-Assessment/AVT-360-8K: v1.0.1
No full text<p>This is a repository with data related to the database that is published at the IEEE ISM 2023 conference in the following paper:</p>
<pre><code>@inproceedings{fremerey2023towards,
title={Towards evaluation of immersion, visual comfort and exploration behaviour for non-stereoscopic and stereoscopic 360° videos},
author={Fremerey, Stephan and Zaman, Raja Faseeh Uz and Ashraf, Touseef and Rao, Rakesh Rao Ramachandra and G{\"o}ring, Steve and Raake, Alexander},
booktitle={2023 IEEE International Symposium on Multimedia (ISM)},
pages={131--138},
year={2023},
organization={IEEE}
}
</code></pre>
<p>This work is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) -- Project ECoClass-VR -- DFG-444697733.</p>
<p><strong>Important:</strong> to download some contents of the dataset it is needed to use the provided tool, because they could not be hosted in this repository.</p>
<p>Please also cf. the paper for more details.
The dataset contains the following contents:</p>
<ul>
<li><code>pvss</code> : Processed videos used for the subjective test</li>
<li><code>srcs</code> : Source videos recorded with a Kandao Obsidian Pro 360° camera and stitched with Mistika VR</li>
<li><code>test_data</code> : Recorded head rotation data, subject-related data and the responses to the questionnaires</li>
</ul>
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
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