DMCA
Copy Detection Mechanisms for Digital Documents
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BibTeX
@MISC{Brin_copydetection,
author = {Sergey Brin and James Davis and Hector Garcia-Molina},
title = { Copy Detection Mechanisms for Digital Documents},
year = {}
}
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Abstract
In a digital library system, documents are available in digital form and therefore are more easily copied and their copyrights are more easily violated. This is a very serious problem, as it discourages owners of valuable information from sharing it with authorized users. There are two main philosophies for addressing this problem: prevention and detection. The former actually makes unauthorized use of documents difficult or impossible while the latter makes it easier to discover such activity. In this paper we propose a system for registering documents and then detecting copies, either complete copies or partial copies. We describe algorithms for such detection, and metrics required for evaluating detection mechanisms (covering accuracy, efficiency, and security). We also describe a working prototype, called COPS, describe implementation issues, and present experimental results that suggest the proper settings for copy detection parameters.
Keyphrases
copy detection mechanism digital document detection mechanism digital form copy detection parameter describe implementation issue serious problem partial copy valuable information working prototype main philosophy proper setting complete copy authorized user present experimental result digital library system unauthorized use
