Database Systems (TODS)


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ACM Transactions on Database Systems (TODS), Volume 23 Issue 4, Dec. 1998

Information gathering in the World-Wide Web: the W3QL query language and the W3QS system
David Konopnicki, Oded Shmueli
Pages: 369-410
DOI: 10.1145/296854.277639
The World Wide Web (WWW) is a fast growing global information resource. It contains an enormous amount of information and provides access to a variety of services. Since there is no central control and very few standards of information...

Towards a theory of cost management for digital libraries and electronic commerce
A. Prasad Sistla, Ouri Wolfson, Yelena Yesha, Robert Sloan
Pages: 411-452
DOI: 10.1145/296854.277641
One of the features that distinguishes digital libraries from traditional databases is new cost models for client access to intellectual property. Clients will pay for accessing data items in digital libraries, and we believe that optimizing...

Inverted files versus signature files for text indexing
Justin Zobel, Alistair Moffat, Kotagiri Ramamohanarao
Pages: 453-490
DOI: 10.1145/296854.277632
Two well-known indexing methods are inverted files and signature files. We have undertaken a detailed comparison of these two approaches in the context of text indexing, paying particular attention to query evaluation speed and space...