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Hrachya V. Astsatryan

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Journal Articles

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2025
[j26]
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Hrachya Astsatryan:
Performance-Driven and Cost-Efficient Convergence of Cloud and HPC: Evaluating MinIO and LustreFS. Balt. J. Mod. Comput. 13(1) (2025)
[j25]
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R. Sargsyan, R. Sahakyan, Emil Gazazyan, Shushanik A. Sargsyan, Sevak Sargsyan, Hrachya V. Astsatryan:
Erratum to: Evaluation of Differential Equation Solutions through Traditional Techniques and Neural Networks in Quantum Simulations. Program. Comput. Softw. 51(5): 357 (2025)
2024
[j24]
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Hrachya V. Astsatryan, Stepan Babayan, Areg M. Mickaelian, Gor A. Mikayelyan, Martin Astsatryan:
Cloud-Based Machine Learning Service for Astronomical Sub-Object Classification: Case Study On the First Byurakan Survey Spectra. Data Sci. J. 23 (2024)
[j23]
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Arthur Lalayan, Hrachya Astsatryan, Suren Poghosyan, Gregory Giuliani:
Optimized Multi-Modular Services: Empowering Earth Observation Data Processing. Informatica 35(2): 363-378 (2024)
2023
[j22]
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Areg M. Mickaelian, Gor A. Mikayelyan, Hrachya V. Astsatryan, Aram V. Knyazyan:
Armenian Virtual Observatory: Status and activities. Astron. Comput. 42: 100689 (2023)
[j21]
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Vahag Bejanyan, Hrachya V. Astsatryan:
Exploring PGAS-based Gossiping Algorithms for Knödel Graphs. Balt. J. Mod. Comput. 11(2) (2023)
[j20]
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Arthur Lalayan, Hrachya V. Astsatryan, Gregory Giuliani:
A Multi-Objective Optimization Service for Enhancing Performance and Cost Efficiency in Earth Observation Data Processing Workflows. Balt. J. Mod. Comput. 11(3) (2023)
[j19]
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Hrachya V. Astsatryan, Arthur Lalayan, Gregory Giuliani:
Scalable Data Processing Platform for Earth Observation Data Repositories. Scalable Comput. Pract. Exp. 24(1): 35-44 (2023)
2022
[j18]
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Hrachya V. Astsatryan, Hayk Grigoryan, Rita Abrahamyan, Shushanik Asmaryan, Vahagn Muradyan, Garegin Tepanosyan, Yaniss Guigoz, Gregory Giuliani:
Shoreline delineation service: using an earth observation data cube and sentinel 2 images for coastal monitoring. Earth Sci. Informatics 15(3): 1587-1596 (2022)
[j17]
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Aram Kocharyan, Brice Ekane, Boris Teabe, Giang Son Tran, Hrachya V. Astsatryan, Daniel Hagimont:
A Remote Memory Sharing System for Virtualized Computing Infrastructures. IEEE Trans. Cloud Comput. 10(3): 1532-1542 (2022)
2021
[j16]
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Hrachya V. Astsatryan, G. Gevorgyan, Aram V. Knyazyan, Areg M. Mickaelian, Gor A. Mikayelyan:
Astronomical objects classification based on the Digitized First Byurakan Survey low-dispersion spectra. Astron. Comput. 34: 100442 (2021)
[j15]
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Hrachya V. Astsatryan, Hayk Grigoryan, Aghasi Poghosyan, Rita Abrahamyan, Shushanik Asmaryan, Vahagn Muradyan, Garegin Tepanosyan, Yaniss Guigoz, Gregory Giuliani:
Air temperature forecasting using artificial neural network for Ararat valley. Earth Sci. Informatics 14(2): 711-722 (2021)
[j14]
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Hrachya V. Astsatryan, Arthur Lalayan, Aram Kocharyan, Daniel Hagimont:
Performance-efficient Recommendation and Prediction Service for Big Data frameworks focusing on Data Compression and In-memory Data Storage Indicators. Scalable Comput. Pract. Exp. 22(4): 401-412 (2021)
2019
[j13]
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Shushanik Asmaryan, Vahagn Muradyan, Garegin Tepanosyan, Azatuhi Hovsepyan, Armen Saghatelyan, Hrachya V. Astsatryan, Hayk Grigoryan, Rita Abrahamyan, Yaniss Guigoz, Gregory Giuliani:
Paving the Way towards an Armenian Data Cube. Data 4(3): 117 (2019)
2018
[j12]
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Vlad Nitu, Aram Kocharyan, Hannas Yaya, Alain Tchana, Daniel Hagimont, Hrachya V. Astsatryan:
Working Set Size Estimation Techniques in Virtualized Environments: One Size Does not Fit All. Proc. ACM Meas. Anal. Comput. Syst. 2(1): 19:1-19:22 (2018)
[j11]
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Hrachya V. Astsatryan, Hayk Grogoryan, Eliza Gyulgyulyan, Anush Hakobyan, Aram Kocharyan, Wahi Narsisian, Vladimir Sahakyan, Yuri Shoukourian, Rita Abrahamyan, Zarmandukht Petrosyan, Julien Aligon:
Weather Data Visualization and Analytical Platform. Scalable Comput. Pract. Exp. 19(2): 79-86 (2018)
[j10]
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Hrachya V. Astsatryan, Wahi Narsisian, Eliza Gyulgyulyan, Vardan Baghdasaryan, Armen Poghosyan, Yevgeni Mamasakhlisov, Peter Wittenburg:
An Integrated Web-based Interactive Data Platform for Molecular Dynamics Simulations. Scalable Comput. Pract. Exp. 19(2): 131-138 (2018)
2017
[j9]
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Aram V. Knyazyan, Hrachya V. Astsatryan, Areg M. Mickaelian:
Armenian virtual observatory simple image access service. Astron. Comput. 19: 23-26 (2017)
[j8]
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Hrachya V. Astsatryan, Wahi Narsisian, Aram Kocharyan, Georges Da Costa, Albert Hankel, Ariel Oleksiak:
Energy optimization methodology for e-infrastructure providers. Concurr. Comput. Pract. Exp. 29(10) (2017)
[j7]
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Hrachya V. Astsatryan, Wahi Narsisian, Georges Da Costa:
SaaS for Energy Efficient Utilization of HPC Resources of Linear Algebra Calculations. Scalable Comput. Pract. Exp. 18(2): 145-150 (2017)
2016
[j6]
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Hrachya V. Astsatryan, Wahi Narsisian, Shushanik Asmaryan:
SWAT hydrological model as a DaaS cloud service. Earth Sci. Informatics 9(3): 401-407 (2016)
2015
[j5]
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Hrachya V. Astsatryan, Andranik Hayrapetyan, Wahi Narsisian, Shushanik Asmaryan, Armen Saghatelyan, Vahagn Muradyan, Gregory Giuliani, Yaniss Guigoz, Nicolas Ray:
An interoperable cloud-based scientific GATEWAY for NDVI time series analysis. Comput. Stand. Interfaces 41: 79-84 (2015)
[j4]
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Hrachya V. Astsatryan, Andranik Hayrapetyan, Wahi Narsisian, A. Saribekyan, Shushanik Asmaryan, Armen Saghatelyan, Vahagn Muradyan, Yaniss Guigoz, Gregory Giuliani, Nicolas Ray:
An interoperable web portal for parallel geoprocessing of satellite image vegetation indices. Earth Sci. Informatics 8(2): 453-460 (2015)
[j3]
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  - journals/superfri/CostaFRGHKLMPST15
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Georges Da Costa, Thomas Fahringer, Juan-Antonio Rico-Gallego, Ivan Grasso, Atanas Hristov, Helen D. Karatza, Alexey L. Lastovetsky, Fabrizio Marozzo, Dana Petcu, Georgios L. Stavrinides, Domenico Talia, Paolo Trunfio, Hrachya V. Astsatryan:
Exascale Machines Require New Programming Paradigms and Runtimes. Supercomput. Front. Innov. 2(2): 6-27 (2015)
2013
[j2]
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Hrachya V. Astsatryan, Vladimir Sahakyan, Yuri Shoukouryan, Michel J. Daydé, Aurélie Hurault, Ronan Guivarch, Harutyun Terzyan, Levon Hovhannisyan:
On the Easy Use of Scientific Computing Services for Large Scale Linear Algebra and Parallel Decision Making with the P-Grade Portal. J. Grid Comput. 11(2): 239-248 (2013)
2009
[j1]
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  - journals/datascience/MickaelianSACN09
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Areg M. Mickaelian, Lusine A. Sargsyan, Hrachya V. Astsatryan, Giuseppe Cirimele, Roberto Nesci:
The DFBS Spectroscopic Database and the Armenian Virtual Observatory. Data Sci. J. 8: 152-161 (2009)

Conference and Workshop Papers

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2023
[c13]
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Pavel Lukashevich, Alexei Belotserkovsky, Hayk Grigoryan, Rita Abrahamyan, Hrachya V. Astsatryan, Aliaksei Sasnovich:
LST Quality Evaluation Service for Heterogeneous Earth Observation Data. IDT 2023: 195-200
[c12]
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Arthur Lalayan, Hrachya V. Astsatryan, Gregory Giuliani:
EOCSim: A CloudSim-Based Simulator for Earth Observation Data Processing in Clouds. LSSC 2023: 419-426
2021
[c11]
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Pavel Lukashevich, Alexei Belotserkovsky, Hrachya V. Astsatryan:
Modern Systems for Processing and Analyzing GEO-data Based on OLAP Technology. CMIS 2021: 216-225
[c10]
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Vahag Bejanyan, Hrachya V. Astsatryan:
A PGAS-Based Implementation for the Parallel Minimum Spanning Tree Algorithm. LSSC 2021: 431-438
2019
[c9]
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  - conf/adbis/GyulgyulyanARA19
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Eliza Gyulgyulyan, Julien Aligon, Franck Ravat, Hrachya V. Astsatryan:
Data Quality Alerting Model for Big Data Analytics. ADBIS (Short Papers and Workshops) 2019: 489-500
2018
[c8]
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  - conf/mipro/AstsatryanNPS18
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Hrachya V. Astsatryan, Wahi Narsisian, Armen Poghosyan, Aram A. Shahinyan:
Performance impact of DVFS for molecular dynamics simulations on Tesla K40 GPU. MIPRO 2018: 854-860
[c7]
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Vlad Nitu, Aram Kocharyan, Hannas Yaya, Alain Tchana, Daniel Hagimont, Hrachya V. Astsatryan:
Working Set Size Estimation Techniques in Virtualized Environments: One Size Does not Fit All. SIGMETRICS (Abstracts) 2018: 62-63
2015
[c6]
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  - conf/eScience/AstsatryanSSSKP15
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Hrachya V. Astsatryan, A. Shakhnazaryan, Vladimir Sahakyan, Yuri Shoukourian, Vassiliki Kotroni, Z. Petrosyan, Rita Abrahamyan, H. Melkonyan:
WRF-ARW Model for Prediction of High Temperatures in South and South East Regions of Armenia. e-Science 2015: 207-213
[c5]
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Hrachya V. Astsatryan, Vladimir Sahakyan, Yuri Shoukourian, Jack J. Dongarra, Pierre-Henri Cros, Michel J. Daydé, Per Öster:
Strengthening compute and data intensive capacities of Armenia. RoEduNet 2015: 28-33
2012
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Armen H. Poghosyan, Levon H. Arsenyan, Hrachya V. Astsatryan:
Comparative NAMD benchmarking on BlueGene/P. MIPRO 2012: 319-321
2011
[c3]
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Hrachya V. Astsatryan, Vladimir Sahakyan, Yuri Shoukouryan, Michel J. Daydé, Aurélie Hurault:
Enabling Large-Scale Linear Systems of Equations on Hybrid HPC Infrastructures. ICT Innovations 2011: 239-245
2008
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Hrachya V. Astsatryan, Vladimir Sahakyan, Yuri Shoukouryan, Michel J. Daydé, Aurélie Hurault, Marc Pantel, Eddy Caron:
A Grid-Aware Web Portal with Advanced Service Trading for Linear Algebra Calculations. VECPAR 2008: 150-159
2004
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Hrachya V. Astsatryan, Yuri Shoukourian, Vladimir Sahakyan:
The ArmCluster Project: Brief Introduction. PDPTA 2004: 1291-1295

Parts in Books or Collections

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2016
[p1]
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Hrachya V. Astsatryan:
Security Issues of the e-Infrastructure for Environmental Research. Meeting Security Challenges Through Data Analytics and Decision Support 2016: 301-307

Informal and Other Publications

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2012
[i1]
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  - journals/corr/abs-1205-5487
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Hrachya V. Astsatryan, Tigran V. Gevorgyan, Anna R. Shahinyan:
Web Portal for Photonic Technologies Using Grid Infrastructures. CoRR abs/1205.5487 (2012)

Coauthor Index

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