Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Decentralized decision making by an ant colony: drift-diffusion model of
  individual choice, quorum and collective decision   Ants are social insects. When the existing nest of an ant colony becomes
uninhabitable, the hunt for a new suitable location for migration of the colony
begins. Normally, multiple sites may be available as the potential new nest
site. Distinct sites may be chosen by different scout ants based on their own
assessments. Since the individual assessment is error prone, many ants may
choose inferior site(s). But, the collective decision that emerges from the
sequential and decentralized decision making process is often far better. We
develop a model for this multi-stage decision making process. A stochastic
drift-diffusion model (DDM) captures the sequential information accumulation by
individual scout ants for arriving at their respective individual choices. The
subsequent tandem runs of the scouts, whereby they recruit their active
nestmates, is modelled in terms of suitable adaptations of the totally
asymmetric simple exclusion processes (TASEP). By a systematic analysis of the
model we explore the conditions that determine the speed of the emergence of
the collective decision and the quality of that decision. More specifically, we
demonstrate that collective decision of the colony is much less error-prone
that the individual decisions of the scout ants. We also compare our
theoretical predictions with experimental data.

2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th