Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Lior Shamir"'
Autor:
Lior Shamir
Publikováno v:
Particles, Vol 7, Iss 3, Pp 703-716 (2024)
Recent advancements have shown tensions between observations and our current understanding of the Universe. Such observations may include the H0 tension and massive galaxies at high redshift that are older than traditional galaxy formation models hav
Externí odkaz:
https://doaj.org/article/0668e9775304443b8546459f1bf792d2
Autor:
Lior Shamir
Publikováno v:
Symmetry, Vol 16, Iss 10, p 1389 (2024)
The asymmetry in the large-scale distribution of the directions in which spiral galaxies rotate has been observed by multiple telescopes, all showing a consistent asymmetry in the distribution of galaxy spin directions as observed from Earth. Here, g
Externí odkaz:
https://doaj.org/article/f9f510adb5464773a9b26f68e9ff9ef9
Autor:
Lior Shamir
Publikováno v:
Universe, Vol 10, Iss 3, p 129 (2024)
Recent puzzling observations, such as the H0 tension, large-scale anisotropies, and massive disk galaxies at high redshifts, have been challenging the standard cosmological model. While one possible explanation is that the standard model is incomplet
Externí odkaz:
https://doaj.org/article/c2ddca8063ae4c039ce32eb07d7c69f6
Autor:
Charles Swisher, Lior Shamir
Publikováno v:
Journal of Data Mining and Digital Humanities, Vol 2023 (2023)
The availability of quantitative text analysis methods has provided new ways of analyzing literature in a manner that was not available in the pre-information era. Here we apply comprehensive machine learning analysis to the work of William Shakespea
Externí odkaz:
https://doaj.org/article/6f31747908404280bbff3b54da4cc6c5
Autor:
Lior Shamir
Publikováno v:
Symmetry, Vol 15, Iss 9, p 1704 (2023)
Recent independent observations using several different telescope systems and analysis methods have provided evidence of parity violation between the numbers of galaxies that spin in opposite directions. On the other hand, other studies argue that no
Externí odkaz:
https://doaj.org/article/9ef905291dfc4ca6833fc6f460ca548f
Autor:
Hunter Goddard, Lior Shamir
Publikováno v:
IEEE Access, Vol 10, Pp 24029-24038 (2022)
While deep convolutional neural networks (DCNNs) have demonstrated superiority in their ability to classify image data, one of the primary downsides of DCNNs is that their training normally requires large sets of labeled “ground truth” images. Fo
Externí odkaz:
https://doaj.org/article/6fa8b57690c3449ebde660e42b6e1700
Autor:
Darius Mcadam, Lior Shamir
Publikováno v:
Advances in Astronomy, Vol 2023 (2023)
The distribution of the spin directions of spiral galaxies in the Sloan Digital Sky Survey has been a topic of debate in the past two decades, with conflicting conclusions reported even in cases where the same data were used. Here, we follow one of t
Externí odkaz:
https://doaj.org/article/6930c69e3dd64b4391d73bb4890409d5
Autor:
Sanchari Dhar, Lior Shamir
Publikováno v:
Visual Informatics, Vol 5, Iss 3, Pp 92-101 (2021)
In the past decade, deep neural networks, and specifically convolutional neural networks (CNNs), have been becoming a primary tool in the field of biomedical image analysis, and are used intensively in other fields such as object or face recognition.
Externí odkaz:
https://doaj.org/article/6c7430c6b3084b6e9e4180c39baf357e
Autor:
Darius McAdam, Lior Shamir
Publikováno v:
Symmetry, Vol 15, Iss 6, p 1190 (2023)
Despite over a century of research, the physics of galaxy rotation is not yet fully understood, and there is a clear discrepancy between the observed mass of galaxies and their rotational velocity. Here, we report on another observation of tension be
Externí odkaz:
https://doaj.org/article/4c1c7a75d87748e59530bb1aaba21f59
Autor:
Lior Shamir
Publikováno v:
Particles, Vol 4, Iss 1, Pp 11-28 (2021)
Observations of non-random distribution of galaxies with opposite spin directions have recently attracted considerable attention. Here, a method for identifying cosine-dependence in a dataset of galaxies annotated by their spin directions is describe
Externí odkaz:
https://doaj.org/article/0197f69c4d5b42e9898d13bb41130c06