Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: WorldTree: A Corpus of Explanation Graphs for Elementary Science
  Questions supporting Multi-Hop Inference   Developing methods of automated inference that are able to provide users with
compelling human-readable justifications for why the answer to a question is
correct is critical for domains such as science and medicine, where user trust
and detecting costly errors are limiting factors to adoption. One of the
central barriers to training question answering models on explainable inference
tasks is the lack of gold explanations to serve as training data. In this paper
we present a corpus of explanations for standardized science exams, a recent
challenge task for question answering. We manually construct a corpus of
detailed explanations for nearly all publicly available standardized elementary
science question (approximately 1,680 3rd through 5th grade questions) and
represent these as "explanation graphs" -- sets of lexically overlapping
sentences that describe how to arrive at the correct answer to a question
through a combination of domain and world knowledge. We also provide an
explanation-centered tablestore, a collection of semi-structured tables that
contain the knowledge to construct these elementary science explanations.
Together, these two knowledge resources map out a substantial portion of the
knowledge required for answering and explaining elementary science exams, and
provide both structured and free-text training data for the explainable
inference task.

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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: math
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The categories of this paper are: physics
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The categories of this paper are: eess
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: supr-con
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The categories of this paper are: comp-gas