Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: repro_eval: A Python Interface to Reproducibility Measures of
  System-oriented IR Experiments   In this work we introduce repro_eval - a tool for reactive reproducibility
studies of system-oriented information retrieval (IR) experiments. The
corresponding Python package provides IR researchers with measures for
different levels of reproduction when evaluating their systems' outputs. By
offering an easily extensible interface, we hope to stimulate common practices
when conducting a reproducibility study of system-oriented IR experiments.

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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
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The categories of this paper are: ao-sci
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The categories of this paper are: supr-con
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-alg
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The categories of this paper are: math
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The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph