ABSTRACT
The improved fuzzy C-means clustering algorithm is used in the process of selecting data to embed watermark. Firstly, aiming at the problem of unstable data size in the traditional fuzzy C-means clustering in the clustering results, the fuzzy C-means clustering algorithm was optimized. Moreover, the data category was further determined on basis of the addition conditional constraints to the clustering. Each tuple of the database can be preliminarily clustered due to the introduced algorithm for database watermark. Then, in each category, the user can select one or several types of data utilized the key control to embed into the watermark. Before embedding the watermark, the proportion parameter is set according to the sparse degree of the watermark, which reflects the principle that the user controls the copyright.
- He Q, Zhao J H, Research on Digital Watermarking Algorithm[J]. China Computer & Communication, 2017(7):82--83.Google Scholar
- Zhu Q, Yu S J, Le J J,Research Work and Progress in Database Watermarking[J].Computer Engineering and Applications,2006, 42(29): 198--201.Google Scholar
- Yu J, On the Fuzziness Index of the FCM Algorithms[J]. Chinese Journal of Computers,2003, 26(8):968--973.Google Scholar
- Gao X B, Xie W X, Optimal Choice of weighting exponent in a Fuzzy C-Means Clustering Algorithm[J]. Moshi Shibie yu Rengong Zhineng,2000, 13(1):7--11.Google Scholar
- LIU C S, XU Q L,Fuzzy C-means clustering algorithm based on density peak value optimization[J]. Computer Engineering and Applications,2018, 54(14):158--162.Google Scholar
- Höppner F, Klawonn F. Clustering with Size Constraints[J]. Studies in Computational Intelligence,2008, 137:167--180.Google Scholar
- Agarwal N, Singh A K, Singh P K. Survey of robust and imperceptible watermarking[J]. Multimedia Tools and Applications,2019(3).Google Scholar
- Zhang Y, NIU X M, Reversible Watermark Technique for Relational Databases[J]. Acta Electronica Sinica,2006, 34(S1):2425--2428.Google Scholar
- Xiao D, Ma Q Q, Wang L, et al. Cloud-assisted Secure Digital Watermarking Based on Sparse Representation[J]. Netinfo Security, 2017(1):1--7.Google Scholar
- YIN H, Lin C, Qiu F, et al. A Survey of Digital Watermarking[J]. Journal of Computer Research and Development,2005, 42(7):1093--1099.Google Scholar
Index Terms
- Database Watermarking Scheme Based on Clustering with Size Constraint
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