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Vladislav P. Khramtsov

Astronomer

Khramtsov

Contacts
Phone:+38 (057) 707-55-58;
Address: Institute of Astronomy, V.N. Karazin Kharkiv National University, Sumska str, 35, Kharkiv, Ukraine, 61022;
E-mail: vld.khramtsov@gmail.com
ResearchGate: Vladislav_Khramtsov
Skype: vld.khramtsov

Education and Academic Employment
since 2015:student at Department of Astronomy and Space Informatics, V.N. Karazin Kharkiv National University
Autumn 2017: Laboratory Assistant at Institute of Astronomy, Laboratory of Astrometry (V.N. Karazin Kharkiv National University).

Scientific interests:
I study machine learning identification of extragalactic sources within optical sky surveys.

My research interests include testing of the celestial reference frames, morphological classification of galaxies,
automatic variable objects detection and classification, photometric redshifts estimation and
finding candidates of gravitationaly lensed quasars.

Supervisors: Dr. V. Akhmetov, Dr. P. Fedorov.

Skills and experience:
machine learning: classification, regression, outlier and novelty detection
data science: building and testing classification models
data engineering: collection, selection, filtration
signal processing: reduction, analysis
programming: Python (tensorflow, keras, scikit-learn, pandas, matplotlib, seaborn)

Keywords: Astronomy Data Science; Machine learning; All-sky surveys; Reference Systems; Extragalactic Astronomy; Data Engineering.

Publications
KiDS0239-3211: A new gravitational quadruple lens candidate (2018)
Sergeyev, A., Spiniello, C., Khramtsov, V. et al.
Research Notes of the AAS, , Volume 2, Number 4, 189

Northern Extragalactic WISE×Pan-STARRS (NEWS) catalogue: machine learning identification of 40 million extragalactic objects (2018)
Khramtsov, V., Akhmetov, V., Fedorov, P.
A&A, submitted

Machine-learning identification of extragalactic objects in the optical-infrared all-sky surveys (2018)
Khramtsov, V., Akhmetov, V.
Proccedings of XIIIth International Conference "Computer Science and Information Technologies", accepted

The NEWS catalogue as an alternative sample of extragalactic objects to represent the Gaia celestial reference frame (2018)
Khramtsov, V., Akhmetov, V., Fedorov, P.
Proceedings of the XXXth IAU General Assembly, Symposium 348, submitted

New observations of variable stars at the Astronomical Institute of Karazin Kharkiv National University (2018)
Shevchenko, V., Mikhalchenko, O., Slyusarev, I., Khramtsov, V. et al.
Astronomy & Astrophysics (Caucasus), 3

Supervised automatic identification of extragalactic sources in the WISE×SuperCOSMOS catalogue (2017)
Khramtsov, V., Akhmetov, V.
Odessa Astronomy Publications, 30
Conferences and Meetings
Northern Extragalactic WISE×Pan-STARRS (NEWS) catalogue: 40 million extragalactic objects within optical-infrared range (2018)
Khramtsov, V., Akhmetov, V.
XXXth IAU General Assembly, Symposium 348 (poster)

Machine-learning identification of extragalactic objects in the optical-infrared all-sky surveys (2018)
Khramtsov, V.
XIIIth International Conference "Computer Science and Information Technologies" (talk)

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