Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Using Statistical Models to Detect Occupancy in Buildings through
  Monitoring VOC, CO$_2$, and other Environmental Factors   Dynamic models of occupancy patterns have shown to be effective in optimizing
building-systems operations. Previous research has relied on CO$_2$ sensors and
vision-based techniques to determine occupancy patterns. Vision-based
techniques provide highly accurate information; however, they are very
intrusive. Therefore, motion or CO$_2$ sensors are more widely adopted
worldwide. Volatile Organic Compounds (VOCs) are another pollutant originating
from the occupants. However, a limited number of studies have evaluated the
impact of occupants on the VOC level. In this paper, continuous measurements of
CO$_2$, VOC, light, temperature, and humidity were recorded in a 17,000 sqft
open office space for around four months. Using different statistical models
(e.g., SVM, K-Nearest Neighbors, and Random Forest) we evaluated which
combination of environmental factors provides more accurate insights on
occupant presence. Our preliminary results indicate that VOC is a good
indicator of occupancy detection in some cases. It is also concluded that
proper feature selection and developing appropriate global occupancy detection
models can reduce the cost and energy of data collection without a significant
impact on accuracy.

36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an