Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tricolor DAGs for Machine Translation   Machine translation (MT) has recently been formulated in terms of
constraint-based knowledge representation and unification theories, but it is
becoming more and more evident that it is not possible to design a practical MT
system without an adequate method of handling mismatches between semantic
representations in the source and target languages. In this paper, we introduce
the idea of ``information-based'' MT, which is considerably more flexible than
interlingual MT or the conventional transfer-based MT.

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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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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: ao-sci
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The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th