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ACM Transactions on Internet Technology (TOIT), Volume 7 Issue 2, May 2007

Requirements for scalable access control and security management architectures
Angelos D. Keromytis, Jonathan M. Smith
Article No.: 8
DOI: 10.1145/1239971.1239972

Maximizing local autonomy by delegating functionality to end nodes when possible (the end-to-end design principle) has led to a scalable Internet. Scalability and the capacity for distributed control have unfortunately not extended well to...

Characterization of national Web domains
Ricardo Baeza-Yates, Carlos Castillo, Efthimis N. Efthimiadis
Article No.: 9
DOI: 10.1145/1239971.1239973

During the last few years, several studies on the characterization of the public Web space of various national domains have been published. The pages of a country are an interesting set for studying the characteristics of the Web because at the...

XQueC: A query-conscious compressed XML database
Andrei Arion, Angela Bonifati, Ioana Manolescu, Andrea Pugliese
Article No.: 10
DOI: 10.1145/1239971.1239974

XML compression has gained prominence recently because it counters the disadvantage of the verbose representation XML gives to data. In many applications, such as data exchange and data archiving, entirely compressing and decompressing a document...

Supporting ad-hoc resource sharing on the Web: A peer-to-peer approach to hypermedia link services
Jing Zhou, Wendy Hall, David C. De Roure, Vijay K. Dialani
Article No.: 11
DOI: 10.1145/1239971.1239975

The key element to support ad-hoc resource sharing on the Web is to discover resources of interest. The hypermedia paradigm provides a way of overlaying a set of resources with additional information in the form of links to help people find other...

Optimal design of english auctions with discrete bid levels
Esther David, Alex Rogers, Nicholas R. Jennings, Jeremy Schiff, Sarit Kraus, Michael H. Rothkopf
Article No.: 12
DOI: 10.1145/1239971.1239976

This article considers a canonical auction protocol that forms the basis of nearly all current online auctions. Such discrete bid auctions require that the bidders submit bids at predetermined discrete bid levels, and thus, there exists a...