Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sustainable Incentives for Mobile Crowdsensing: Auctions, Lotteries, and
  Trust and Reputation Systems   Proper incentive mechanisms are critical for mobile crowdsensing systems to
motivate people to actively and persistently participate. This article provides
an exposition of design principles of six incentive mechanisms, drawing special
attention to the sustainability issue. We cover three primary classes of
incentive mechanisms: auctions, lotteries, and trust and reputation systems, as
well as three other frameworks of promising potential: bargaining games,
contract theory, and market-driven mechanisms.

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The categories of this paper are: eess
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
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The categories of this paper are: econ
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th