Download Advances in Web-Age Information Management: 4th by Sushil Jajodia (auth.), Guozhu Dong, Changjie Tang, Wei Wang PDF

By Sushil Jajodia (auth.), Guozhu Dong, Changjie Tang, Wei Wang (eds.)

With advances within the net and applied sciences round the World-Wide internet, learn on layout, implementation, and administration of web- and W- dependent info structures has turn into more and more vital. As increasingly more details of various variety turns into to be had on the net and net, question and retrieval in addition to the administration of knowledge over the web turn into extra advanced and very di?cult. Novel methods to advance and deal with web and net details platforms are in excessive call for. Following the profitable meetings in 2000, 2001 and 2002, WAIM 2003 persevered to supply a discussion board for researchers, pros, and commercial practitioners from worldwide to proportion their swiftly evolving wisdom and to document on new advances in Web-based details structures. WAIM 2003 got an overpowering 258 submissions from Australia, Canada, China, Denmark, France, Germany, Greece, Hong Kong, Japan, South Korea, Pakistan, Singapore, Sweden, Switzerland, Taiwan, Thailand, united kingdom, united states, and Vietnam. via cautious evaluation by means of this system committee, 30 papers have been chosen as common papers, and sixteen papers as brief papers. As indicated by way of those numbers, WAIM 2003 is intensely selective: eleven and 17 parts, respectively, together with textual content administration, information mining, details ?ltering, relocating gadgets, perspectives, bioinformatics, net and XML, multimedia, peer-to-peer structures, carrier networks, time-series streams, and ontologies. invited talks via Sushil Ja- dia (George Mason collage, united states) and Beng Chin Ooi (National collage of Singapore) have been on entry keep watch over versions and peer-to-peer systems.

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Extra info for Advances in Web-Age Information Management: 4th International Conference, WAIM 2003, Chengdu, China, August 17-19, 2003. Proceedings

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3. Varying confidence. 3 Comparing “Most Popular” and PPM Performance Figure 9 shows that in any case the PPM approach has significantly better accuracy of predictions and less traffic increase than the “Most popular” approach. On the other hand, the “Most popular” algorithm has higher usefulness of predictions. It is necessary to mention here that the complexity of the “most popular” case is much less than that of the PPM case, since a simple algorithm, with no special operational or storage requirements, is used for the construction of the “n-next most popular” prediction model.

The delta value of the first element in a list is the difference between the source and the destination of the link, and the delta values of the rest are the differences between their previous elements and themselves. We call the delta value of the first element initial distance, and the delta values of the rest increments. Because initial distance and increment are different things, they may well have different distributions, hence different optimal representations. jp domain collected in 2002, after removing pages whose URLs do not look like HTML files.

Exponents. By using the distributions of initial distances, increments and other variables, we obtained another compact encoding of the web graph. Especially, the connection between power distributions and variable encodings has turned to be useful to encode the web graph efficiently. The qualitative comparison of our method with Link2 and Link3 in terms of compression ratio and extraction time is yet to be performed. Widely-known “power law” about the distribution of the out-degrees and the in-degrees of vertices is not used in our method.

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