Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A feature-based framework for detecting technical outliers in
  water-quality data from in situ sensors   Outliers due to technical errors in water-quality data from in situ sensors
can reduce data quality and have a direct impact on inference drawn from
subsequent data analysis. However, outlier detection through manual monitoring
is unfeasible given the volume and velocity of data the sensors produce. Here,
we proposed an automated framework that provides early detection of outliers in
water-quality data from in situ sensors caused by technical issues.The
framework was used first to identify the data features that differentiate
outlying instances from typical behaviours. Then statistical transformations
were applied to make the outlying instances stand out in transformed data
space. Unsupervised outlier scoring techniques were then applied to the
transformed data space and an approach based on extreme value theory was used
to calculate a threshold for each potential outlier. Using two data sets
obtained from in situ sensors in rivers flowing into the Great Barrier Reef
lagoon, Australia, we showed that the proposed framework successfully
identified outliers involving abrupt changes in turbidity, conductivity and
river level, including sudden spikes, sudden isolated drops and level shifts,
while maintaining very low false detection rates. We implemented this framework
in the open source R package oddwater.

25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess