Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Novel Watermarking Scheme for Detecting and Recovering Distortions in
  Database Tables   In this paper a novel fragile watermarking scheme is proposed to detect,
localize and recover malicious modifications in relational databases. In the
proposed scheme, all tuples in the database are first securely divided into
groups. Then watermarks are embedded and verified group-by-group independently.
By using the embedded watermark, we are able to detect and localize the
modification made to the database and even we recover the true data from the
database modified locations. Our experimental results show that this scheme is
so qualified; i.e. distortion detection and true data recovery both are
performed successfully.

15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin