Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Markov-chain-inspired search for MH370   Markov-chain models are constructed for the probabilistic description of the
drift of marine debris from Malaysian Airlines flight MH370. En route from
Kuala Lumpur to Beijing, the MH370 mysteriously disappeared in the southeastern
Indian Ocean on 8 March 2014, somewhere along the arc of the 7th ping ring
around the Inmarsat-3F1 satellite position when the airplane lost contact. The
models are obtained by discretizing the motion of undrogued satellite-tracked
surface drifting buoys from the global historical data bank. A spectral
analysis, Bayesian estimation, and the computation of most probable paths
between the Inmarsat arc and confirmed airplane debris beaching sites are shown
to constrain the crash site, near 25$^{\circ}$S on the Inmarsat arc.

20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex