Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Detecting Code Clones: A review   Code clone detection is involved with detecting duplicated fragments of code
within a code base. Detecting these clones is useful for maintenance operations
which require editing the clones. The tools developed are expected to be robust
enough to identify clones even when they have been modified, whilst preserving
reasonable recall and precision rates. It is also expected that these tools be
easily adaptable to different programming languages. The major approaches to
this problem has involve the use of direct string matching, token comparison or
comparison using abstract syntax trees. It is difficult to compare detection
tools due to the absence of a standardized framework for measurement. More work
should be done to make the existing tools useful for other practical/industrial
purposes.

2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an