The art of computer programming, volume 3: (2nd ed.) sorting and searching
The art of computer programming, volume 3: (2nd ed.) sorting and searching
Fast Algorithms for Mining Association Rules in Large Databases
VLDB '94 Proceedings of the 20th International Conference on Very Large Data Bases
Mining Frequent Patterns without Candidate Generation: A Frequent-Pattern Tree Approach
Data Mining and Knowledge Discovery
Modeling and implementation of digital rights
Journal of Systems and Software
MAFIA: A Maximal Frequent Itemset Algorithm
IEEE Transactions on Knowledge and Data Engineering
Fairer usage contracts for DRM
Proceedings of the 5th ACM workshop on Digital rights management
Summarizing Evolving Data Streams using Dynamic Prefix Trees
WI '07 Proceedings of the IEEE/WIC/ACM International Conference on Web Intelligence
Mining top-k frequent patterns in the presence of the memory constraint
The VLDB Journal — The International Journal on Very Large Data Bases
Digital rights management architectures
Computers and Electrical Engineering
Multi-level Frequent Pattern Mining
DASFAA '09 Proceedings of the 14th International Conference on Database Systems for Advanced Applications
Next Generation IPTV Services and Technologies
Next Generation IPTV Services and Technologies
Efficient license validation in MPML DRM architecture
Proceedings of the nineth ACM workshop on Digital rights management
Content value chains modelling using a copyright ontology
Information Systems
Mining frequent itemsets from uncertain data
PAKDD'07 Proceedings of the 11th Pacific-Asia conference on Advances in knowledge discovery and data mining
Efficient aggregate licenses validation in DRM
DASFAA'10 Proceedings of the 15th international conference on Database Systems for Advanced Applications - Volume Part II
Computation time efficient approach for licenses validation in DRM systems
Multimedia Tools and Applications
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Digital Rights Management (DRM) is the term associated with the set of technologies to prevent illegal multimedia content distribution and consumption. DRM systems generally involve multiple parties such as owner, distributors, and consumers. The owner issues redistribution licenses to its distributors. The distributors in turn using their received redistribution licenses can generate and issue new redistribution licenses to other distributors and new usage licenses to consumers. As a part of rights violation detection, these newly generated licenses must be validated by a validation authority against the redistribution license used to generate them. The validation of these newly generated licenses becomes quite complex when there exist multiple redistribution licenses for a media with the distributors. In such cases, the validation process requires validation using an exponential number (to the number of redistribution licenses) of validation inequalities and each validation inequality may contain up to an exponential number of summation terms. This makes the validation process computationally intensive and necessitates to do the validation efficiently. To overcome this, we propose validation tree, a prefix-tree-based validation method to do the validation efficiently. Theoretical analysis and experimental results show that our proposed technique reduces the validation time significantly.