Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards Instance-Level Parser Selection for Cross-Lingual Transfer of
  Dependency Parsers   Current methods of cross-lingual parser transfer focus on predicting the best
parser for a low-resource target language globally, that is, "at treebank
level". In this work, we propose and argue for a novel cross-lingual transfer
paradigm: instance-level parser selection (ILPS), and present a
proof-of-concept study focused on instance-level selection in the framework of
delexicalized parser transfer. We start from an empirical observation that
different source parsers are the best choice for different Universal POS
sequences in the target language. We then propose to predict the best parser at
the instance level. To this end, we train a supervised regression model, based
on the Transformer architecture, to predict parser accuracies for individual
POS-sequences. We compare ILPS against two strong single-best parser selection
baselines (SBPS): (1) a model that compares POS n-gram distributions between
the source and target languages (KL) and (2) a model that selects the source
based on the similarity between manually created language vectors encoding
syntactic properties of languages (L2V). The results from our extensive
evaluation, coupling 42 source parsers and 20 diverse low-resource test
languages, show that ILPS outperforms KL and L2V on 13/20 and 14/20 test
languages, respectively. Further, we show that by predicting the best parser
"at the treebank level" (SBPS), using the aggregation of predictions from our
instance-level model, we outperform the same baselines on 17/20 and 16/20 test
languages.

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The categories of this paper are: physics
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: q-bio
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: chem-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: stat
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The categories of this paper are: hep-th