Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discovering a Regularity: the Case of An 800-year Law of Advances in
  Small-Arms Technologies   Considering a broad family of technologies where a measure of performance
(MoP) is difficult or impossible to formulate, we seek an alternative measure
that exhibits a regular pattern of evolution over time, similar to how a MoP
may follow a Moore's law. In an empirical case study, we explore an approach to
identifying such a composite measure called a Figure of Regularity (FoR). We
use the proposed approach to identify a novel FoR for diverse classes of small
arms - bows, crossbows, harquebuses, muskets, rifles, repeaters, and assault
rifles - and show that this FoR agrees well with the empirical data. We
identify a previously unreported regular trend in the FoR of an exceptionally
long duration - from approximately 1200 CE to the present - and discuss how
research managers can analyze long-term trends in conjunction with a portfolio
of research directions.

10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph