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Metadata extraction from raw astroparticle data of TAIGA experiment

Авторы: Bychkov I., Dubenskaya J., Korosteleva E., Kryukov A., Mikhailov A., Nguyen M.-D., Shigarov A.

Журнал: CEUR Workshop Proceedings: Proc. of 3rd Intern. Workshop on Data Life Cycle in Physics (DLC'2019)

Том: 2406

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Год: 2019

Отчётный год: 2019

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Аннотация: Today, the operating TAIGA (Tunka Advanced Instrument for cosmic rays and Gamma Astronomy) experiment continuously produces and accumulates a large volume of raw astroparticle data. To be available for the scientific community these data should be well-described and formally characterized. The use of metadata makes it possible to search for and to aggregate digital objects (e.g. events and runs) by time and equipment through a unified interface to access them. The important part of the metadata is hidden and scattered in folder/files names and package headers. Such metadata should be extracted from binary files, transformed to a unified form of digital objects, and loaded into the catalog. To address this challenge we developed a concept of the metadata extractor that can be extended by facility-specific extraction modules. It is designed to automatically collect descriptive metadata from raw data files of all TAIGA formats.

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