Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The 2nd Anti-UAV Workshop & Challenge: Methods and Results   The 2nd Anti-UAV Workshop \& Challenge aims to encourage research in
developing novel and accurate methods for multi-scale object tracking. The
Anti-UAV dataset used for the Anti-UAV Challenge has been publicly released.
There are two subsets in the dataset, $i.e.$, the test-dev subset and
test-challenge subset. Both subsets consist of 140 thermal infrared video
sequences, spanning multiple occurrences of multi-scale UAVs. Around 24
participating teams from the globe competed in the 2nd Anti-UAV Challenge. In
this paper, we provide a brief summary of the 2nd Anti-UAV Workshop \&
Challenge including brief introductions to the top three methods.The submission
leaderboard will be reopened for researchers that are interested in the
Anti-UAV challenge. The benchmark dataset and other information can be found
at: https://anti-uav.github.io/.

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The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
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The categories of this paper are: chao-dyn