Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: NFT Appraisal Prediction: Utilizing Search Trends, Public Market Data,
  Linear Regression and Recurrent Neural Networks   In this paper we investigate the correlation between NFT valuations and
various features from three primary categories: public market data, NFT
metadata, and social trends data.

18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys