By Elisa Bertino, Stavros Christodoulakis, Dimitris Plexousakis, Christophides Vassilis
This ebook constitutes the refereed complaints of the ninth foreign convention on Extending Database know-how, EDBT 2004, held in Heraklion, Crete, Greece, in March 2004. The forty two revised complete papers offered including 2 business software papers, 15 software program demos, and three invited contributions have been rigorously reviewed and chosen from 294 submissions. The papers are equipped in topical sections on disbursed, cellular and peer-to-peer database structures; facts mining and information discovery; reliable database structures; cutting edge question processing thoughts for XML information; info and data on the internet; question processing options for spatial databases; foundations of question processing; complex question processing and optimization; question processing ideas for information and schemas; multimedia and quality-aware structures; indexing recommendations; and obscure series trend queries.
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Extra resources for Advances in Database Technology - EDBT 2004
Consider a set of elements. The idea is to allocate a vector of bits, initially all set to 0, and then choose independent hash functions, each with range 1 to For each element the bits at positions in are set to 1 (Fig. 2). A particular bit may be set to 1 many times. Given a query for the bits at positions are checked. If any of them is 0, then certainly Otherwise, we conjecture that is in the set although there is a certain probability that we are wrong. This is a false positive.
Solutions to the privacy problem for web databases. As we have mentioned, the challenge is to provide solutions to enhance national security as well as extract useful information but at the same time ensure privacy. , Agrawal at IBM Almaden, Gehrke at Cornell University and Clifton at Purdue University, see for example , , ). The idea here is to continue with mining but at the same time ensure privacy as much as possible. For example, Clifton has proposed the use of the multiparty security policy approach for carrying out privacy sensitive data mining.
It is important to note that today third-party architectures are becoming more and more widely used for any web-based system, due to their scalablity and the ease with which they are able to manage large amount of data and large collections of users. 3 Security and Privacy for Web Databases Security issues for web database include secure management of structured databases as well as unstructured and semistructured databases, and privacy issues. In the following sections we discuss all these aspects.
Advances in Database Technology - EDBT 2004 by Elisa Bertino, Stavros Christodoulakis, Dimitris Plexousakis, Christophides Vassilis