Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fault-Tolerant, but Paradoxical Path-Finding in Physical and Conceptual
  Systems   We report our initial investigations into reliability and path-finding based
models and propose future areas of interest. Inspired by broken sidewalks
during on-campus construction projects, we develop two models for navigating
this "unreliable network." These are based on a concept of "accumulating risk"
backward from the destination, and both operate on directed acyclic graphs with
a probability of failure associated with each edge. The first serves to
introduce and has faults addressed by the second, more conservative model.
Next, we show a paradox when these models are used to construct polynomials on
conceptual networks, such as design processes and software development life
cycles. When the risk of a network increases uniformly, the most reliable path
changes from wider and longer to shorter and narrower. If we let professional
inexperience--such as with entry level cooks and software developers--represent
probability of edge failure, does this change in path imply that the novice
should follow instructions with fewer "back-up" plans, yet those with
alternative routes should be followed by the expert?

7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
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The categories of this paper are: quant-ph
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The categories of this paper are: econ
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
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The categories of this paper are: nlin
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The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: physics
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The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph