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Scam: A copy detection mechanism for digital documents (1995)
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| Venue: | In Digitial Library |
| Citations: | 148 - 10 self |
BibTeX
@INPROCEEDINGS{Shivakumar95scam:a,
author = {Narayanan Shivakumar and Hector Garcia-molina},
title = {Scam: A copy detection mechanism for digital documents},
booktitle = {In Digitial Library},
year = {1995}
}
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Abstract
Copy detection in Digital Libraries may provide the necessary guarantees for publishers and newsfeed ser-vices to oer valuable on-line data. We consider the case for a registration server that maintains regis-tered documents against which new documents can be checked for overlap. In this paper we present a new scheme for detecting copies based on compar-ing the word frequency occurrences of the new docu-ment against those of registered documents. We also report on an experimental comparison between our proposed scheme and COPS [6], a detection scheme based on sentence overlap. The tests involve over a million comparisons of netnews articles and show that in general the new scheme performs better in detecting documents that have partial overlap.
Keyphrases
copy detection mechanism digital document registered document new document sentence overlap word frequency occurrence netnews article copy detection digital library necessary guarantee valuable on-line data detection scheme new docu-ment newsfeed ser-vices partial overlap experimental comparison new scheme new scheme performs regis-tered document registration server
