Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hidden Quantum Markov Models with one qubit   Hidden Markov Models (HMMs) have become very popular as a computational tool
for the analysis of sequential data. They are memoryless machines which
transition from one internal state to another, while producing symbols. These
symbols constitute the output of the machine and form an infinite time series.
Analogously, Hidden Quantum Markov Models (HQMM) produce an infinite time
series, while progressing from one quantum state to another through stochastic
quantum operations. Here we compare 1-bit HMMs and 1-qubit HQMMs and show that
the latter can produce stronger correlations, although both machines are, in
principle, comparable in resources.

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The categories of this paper are: q-bio
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The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-th
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The categories of this paper are: stat
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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: math
28
The categories of this paper are: alg-geom
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The categories of this paper are: cs
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The categories of this paper are: q-fin
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The categories of this paper are: nlin
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The categories of this paper are: ao-sci
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The categories of this paper are: eess