Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classical and Nonextensive Information Theory   In this work we firstly review some results in Classical Information Theory.
Next, we try to generalize these results by using the Tsallis entropy. We
present a preliminary result and discuss our aims in this field.

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The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
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The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
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The categories of this paper are: eess
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The categories of this paper are: solv-int
2
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: gr-qc
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The categories of this paper are: plasm-ph