Repeated pattern of gamma-ray flares in the light curve of the blazar 3C 279

D Blinov, SG Jorstad, VM Larionov… - Monthly Notices of …, 2021 - academic.oup.com
The optical polarization plane of some blazars occasionally exhibits smooth hundred degree
long rotations. Multiple theoretical models have been proposed to explain the nature of such …

Two flares with one shock: the interesting case of 3C 454.3

I Liodakis, D Blinov, SG Jorstad… - The Astrophysical …, 2020 - iopscience.iop.org
Abstract The quasar 3C 454.3 is a blazar known for its rapid and violent outbursts seen
across the electromagnetic spectrum. Using γ-ray, X-ray, multiband optical, and very-long …

Multi-dimensional time-series subsequence clustering for visual feature analysis of blazar observation datasets

N Sawada, M Uemura, I Fujishiro - Astronomy and Computing, 2022 - Elsevier
Exploring hidden structures in subsequences extracted from long-term time-series data is
one of the primary tasks of time-series data analysis. Clustering is one of the most commonly …

[HTML][HTML] aflak: Visual programming environment enabling end-to-end provenance management for the analysis of astronomical datasets

MO Boussejra, R Uchiki, Y Takeshima, K Matsubayashi… - Visual Informatics, 2019 - Elsevier
This paper describes an extendable graphical framework, aflak, which provides a
visualization and provenance management environment for the analysis of multi-spectral …

IGM‐Vis: Analyzing Intergalactic and Circumgalactic Medium Absorption Using Quasar Sightlines in a Cosmic Web Context

JN Burchett, D Abramov, J Otto… - Computer Graphics …, 2019 - Wiley Online Library
We introduce IGM‐Vis, a novel astrophysics visualization and data analysis application for
investigating galaxies and the gas that surrounds them in context with their larger scale …

[PDF][PDF] Clustering, Universalities, and Evolutionary Schema Design.

I Fujishiro, N Sawada, M Uemura - EDBT/ICDT Workshops, 2023 - ceur-ws.org
Exploring data features using visual clustering is a significant challenge of big data
analytics. In this vision paper, we focus primarily on the relationship among visual data …

TimeTubesX: a query-driven visual exploration of observable, photometric, and polarimetric behaviors of blazars

N Sawada, M Uemura, J Beyer… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Blazars are celestial bodies of high interest to astronomers. In particular, through the
analysis of photometric and polarimetric observations of blazars, astronomers aim to …

TimeTubes: Automatic extraction of observable blazar features from long-term, multi-dimensional datasets

N Sawada, M Nakayama, M Uemura… - 2018 IEEE Scientific …, 2018 - ieeexplore.ieee.org
Blazars are attractive objects for astronomers to observe in order to demystify the relativistic
jet. Astronomers need to classify characteristic temporal variation patterns and correlations …

[PDF][PDF] aflak: Advanced Framework for Learning Astrophysical Knowledge

MO Boussejra - 2019 - core.ac.uk
This thesis describes an extendable graphical framework, aflak (Advanced Framework for
Learning Astronomical Knowledge), which provides a collaborative visualization …

知的環境メディア

藤代一成 - 画像電子学会誌, 2017 - jstage.jst.go.jp
画像コンテンツの高度化を目指した, コンピュータグラフィックス 1) とビジョンの融合,
すなわちビジュアルコンピューティング (Visual Computing, VC) 2) の重要性が叫ばれるようになっ …