Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Using k-nearest neighbors to construct cancelable minutiae templates   Fingerprint is widely used in a variety of applications. Security measures
have to be taken to protect the privacy of fingerprint data. Cancelable
biometrics is proposed as an effective mechanism of using and protecting
biometrics. In this paper we propose a new method of constructing cancelable
fingerprint template by combining real template with synthetic template.
Specifically, each user is given one synthetic minutia template generated with
random number generator. Every minutia point from the real template is
individually thrown into the synthetic template, from which its k-nearest
neighbors are found. The verification template is constructed by combining an
arbitrary set of the k-nearest neighbors. To prove the validity of the scheme,
testing is carried out on three databases. The results show that the
constructed templates satisfy the requirements of cancelable biometrics.

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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
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The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc