Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Natural Disasters Detection in Social Media and Satellite imagery: a
  survey   The analysis of natural disaster-related multimedia content got great
attention in recent years. Being one of the most important sources of
information, social media have been crawled over the years to collect and
analyze disaster-related multimedia content. Satellite imagery has also been
widely explored for disasters analysis. In this paper, we survey the existing
literature on disaster detection and analysis of the retrieved information from
social media and satellites. Literature on disaster detection and analysis of
related multimedia content on the basis of the nature of the content can be
categorized into three groups, namely (i) disaster detection in text; (ii)
analysis of disaster-related visual content from social media; and (iii)
disaster detection in satellite imagery. We extensively review different
approaches proposed in these three domains. Furthermore, we also review
benchmarking datasets available for the evaluation of disaster detection
frameworks. Moreover, we provide a detailed discussion on the insights obtained
from the literature review, and identify future trends and challenges, which
will provide an important starting point for the researchers in the field.

26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci