Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Calling patterns in human communication dynamics   Modern technologies not only provide a variety of communication modes, e.g.,
texting, cellphone conversation, and online instant messaging, but they also
provide detailed electronic traces of these communications between individuals.
These electronic traces indicate that the interactions occur in temporal
bursts. Here, we study the inter-call durations of the 100,000 most-active
cellphone users of a Chinese mobile phone operator. We confirm that the
inter-call durations follow a power-law distribution with an exponential cutoff
at the population level but find differences when focusing on individual users.
We apply statistical tests at the individual level and find that the inter-call
durations follow a power-law distribution for only 3460 individuals (3.46%).
The inter-call durations for the majority (73.34%) follow a Weibull
distribution. We quantify individual users using three measures: out-degree,
percentage of outgoing calls, and communication diversity. We find that the
cellphone users with a power-law duration distribution fall into three
anomalous clusters: robot-based callers, telecom frauds, and telephone sales.
This information is of interest to both academics and practitioners, mobile
telecom operator in particular. In contrast, the individual users with a
Weibull duration distribution form the fourth cluster of ordinary cellphone
users. We also discover more information about the calling patterns of these
four clusters, e.g., the probability that a user will call the $c_r$-th most
contact and the probability distribution of burst sizes. Our findings may
enable a more detailed analysis of the huge body of data contained in the logs
of massive users.

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The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat