Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Searching an optimal experiment observation sequence to estimate the
  thermal properties of a multilayer wall under real climate conditions   The \emph{in situ} estimation of the thermal properties of existing building
wall materials is a computationally expensive procedure. Its cost is highly
proportional to the duration of measurements. To decrease the computational
cost a methodology using a D-optimum criterion to select an optimal experiment
duration is proposed. This criterion allows to accurately estimate the thermal
properties of the wall using a reduced measurement plan. The methodology is
applied to estimate the thermal conductivity of the three-layer wall of a
historical building in France. Three different experiment sequences (one, three
and seven days) and three spatial distributions of the thermal conductivity are
investigated. Then using the optimal duration of observations the thermal
conductivity is estimated using the hybrid optimization method. Results show a
significant reduction of computational time; and reliable simulation of
physical phenomena using the estimated values.

16
The categories of this paper are: stat
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con