Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Development of a Real-time Indoor Location System using Bluetooth Low
  Energy Technology and Deep Learning to Facilitate Clinical Applications   An indoor, real-time location system (RTLS) can benefit both hospitals and
patients by improving clinical efficiency through data-driven optimization of
procedures. Bluetooth-based RTLS systems are cost-effective but lack accuracy
and robustness because Bluetooth signal strength is subject to fluctuation. We
developed a machine learning-based solution using a Long Short-Term Memory
(LSTM) network followed by a Multilayer Perceptron classifier and a posterior
constraint algorithm to improve RTLS performance. Training and validation
datasets showed that most machine learning models perform well in classifying
individual location zones, although LSTM was most reliable. However, when faced
with data indicating cross-zone trajectories, all models showed erratic zone
switching. Thus, we implemented a history-based posterior constraint algorithm
to reduce the variability in exchange for a slight decrease in responsiveness.
This network increases robustness at the expense of latency. When latency is
less of a concern, we computed the latency-corrected accuracy which is 100% for
our testing data, significantly improved from LSTM without constraint which is
96.2%. The balance between robustness and responsiveness can be considered and
adjusted on a case-by-case basis, according to the specific needs of downstream
clinical applications. This system was deployed and validated in an academic
medical center. Industry best practices enabled system scaling without
substantial compromises to performance or cost.

2
The categories of this paper are: math
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc