Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Private Information Retrieval from Coded Storage Systems with Colluding,
  Byzantine, and Unresponsive Servers   The problem of Private Information Retrieval (PIR) from coded storage systems
with colluding, byzantine, and unresponsive servers is considered. An explicit
scheme using an $[n,k]$ Reed-Solomon storage code is designed, protecting
against $t$-collusion and handling up to $b$ byzantine and $r$ unresponsive
servers, when $n>k+t+2b+r-1$. This scheme achieves a PIR rate of
$\frac{n-r-(k+2b+t-1)}{n-r}$. In the case where the capacity is known, namely
when $k=1$, it is asymptotically capacity-achieving as the number of files
grows. Lastly, the scheme is adapted to symmetric PIR.

10
The categories of this paper are: q-bio
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
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The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
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The categories of this paper are: eess
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
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The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con