Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Adaptive Kernel Estimation of the Spectral Density with Boundary Kernel
  Analysis   A hybrid estimator of the log-spectral density of a stationary time series is
proposed. First, a multiple taper estimate is performed, followed by kernel
smoothing the log-multitaper estimate. This procedure reduces the expected mean
square error by $({\pi^2 \over 4})^{.8}$ over simply smoothing the log tapered
periodogram. The optimal number of tapers is $O(N^{8/15})$. A data adaptive
implementation of a variable bandwidth kernel smoother is given. When the
spectral density is discontinuous, one sided smoothing estimates are used.

23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph