Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Funnelling: A New Ensemble Method for Heterogeneous Transfer Learning
  and its Application to Cross-Lingual Text Classification   Cross-lingual Text Classification (CLC) consists of automatically
classifying, according to a common set C of classes, documents each written in
one of a set of languages L, and doing so more accurately than when naively
classifying each document via its corresponding language-specific classifier.
In order to obtain an increase in the classification accuracy for a given
language, the system thus needs to also leverage the training examples written
in the other languages. We tackle multilabel CLC via funnelling, a new ensemble
learning method that we propose here. Funnelling consists of generating a
two-tier classification system where all documents, irrespectively of language,
are classified by the same (2nd-tier) classifier. For this classifier all
documents are represented in a common, language-independent feature space
consisting of the posterior probabilities generated by 1st-tier,
language-dependent classifiers. This allows the classification of all test
documents, of any language, to benefit from the information present in all
training documents, of any language. We present substantial experiments, run on
publicly available multilingual text collections, in which funnelling is shown
to significantly outperform a number of state-of-the-art baselines. All code
and datasets (in vector form) are made publicly available.

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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: nlin
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The categories of this paper are: funct-an
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: math-ph
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The categories of this paper are: math
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ex
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The categories of this paper are: q-alg
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The categories of this paper are: cond-mat