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WWW
2008
ACM
16 years 7 months ago
Context-sensitive QoS model: a rule-based approach to web service composition
Generally, web services are provided with different QoS values, so they can be selected dynamically in service composition process. However, the conventional context free composit...
Tao Zhou, Xiaolin Zheng, William Wei Song, Xiaofen...
WWW
2008
ACM
16 years 7 months ago
Measuring extremal dependencies in web graphs
We analyze dependencies in power law graph data (Web sample, Wikipedia sample and a preferential attachment graph) using statistical inference for multivariate regular variation. ...
Yana Volkovich, Nelly Litvak, Bert Zwart
WWW
2008
ACM
16 years 7 months ago
SPARQL basic graph pattern optimization using selectivity estimation
In this paper, we formalize the problem of Basic Graph Pattern (BGP) optimization for SPARQL queries and main memory graph implementations of RDF data. We define and analyze the c...
Markus Stocker, Andy Seaborne, Abraham Bernstein, ...
WWW
2008
ACM
16 years 7 months ago
Pivotbrowser: a tag-space image searching prototype
We propose a novel iterative searching and refining prototype for tagged images. This prototype, named PivotBrowser, captures semantically similar tag sets in a structure called p...
Xiaoyan Li, Lidan Shou, Gang Chen, Xiaolong Zhang,...
WWW
2008
ACM
16 years 7 months ago
Asymmetrical query recommendation method based on bipartite network resource allocation
This paper presents a new query recommendation method that generates recommended query list by mining large-scale user logs. Starting from the user logs of click-through data, we ...
Zhiyuan Liu, Maosong Sun