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IS
2008
13 years 4 months ago
Conformance checking of processes based on monitoring real behavior
Many companies have adopted Process-aware Information Systems (PAIS) to support their business processes in some form. On the one hand these systems typically log events (e.g., in ...
Anne Rozinat, Wil M. P. van der Aalst
IS
2008
13 years 4 months ago
An analysis of XQuery benchmarks
This paper presents a survey and an analysis of the XQuery benchmark publicly available in 2006 -- XMach-1, XMark, X007, the Michigan benchmark, and XBench -- from different persp...
Loredana Afanasiev, Maarten Marx
IS
2008
13 years 4 months ago
Clustering spatial networks for aggregate query processing: A hypergraph approach
In spatial networks, clustering adjacent data to disk pages is highly likely to reduce the number of disk page accesses made by the aggregate network operations during query proce...
Engin Demir, Cevdet Aykanat, Berkant Barla Cambazo...
IS
2008
13 years 4 months ago
Mining relational data from text: From strictly supervised to weakly supervised learning
This paper approaches the relation classification problem in information extraction framework with different machine learning strategies, from strictly supervised to weakly superv...
Zhu Zhang
IS
2008
13 years 4 months ago
DFL: A dataflow language based on Petri nets and nested relational calculus
In this paper we propose DFL -- a formal, graphical workflow language for dataflows, i.e., workflows where large amounts of complex data are manipulated, and the structure of the ...
Jan Hidders, Natalia Kwasnikowska, Jacek Sroka, Je...
IS
2008
13 years 4 months ago
Continuous subspace clustering in streaming time series
Performing data mining tasks in streaming data is considered a challenging research direction, due to the continuous data evolution. In this work, we focus on the problem of clust...
Maria Kontaki, Apostolos N. Papadopoulos, Yannis M...
IS
2008
13 years 4 months ago
A dimensionality reduction technique for efficient time series similarity analysis
We propose a dimensionality reduction technique for time series analysis that significantly improves the efficiency and accuracy of similarity searches. In contrast to piecewise c...
Qiang Wang, Vasileios Megalooikonomou
IS
2008
13 years 4 months ago
Efficient mining of frequent episodes from complex sequences
Discovering patterns with highly significance is an important problem in data mining discipline. An episode is defined to be a partially ordered set of events for a consecutive an...
Kuo-Yu Huang, Chia-Hui Chang