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- 4Approximation algorithms
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- 29Computing Science, Department of/Technical Reports (Computing Science)
- 3Agricultural, Food and Nutritional Science, Department of
- 3Agricultural, Food and Nutritional Science, Department of/Journal Articles (Agricultural, Food and Nutritional Science)
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2007
Yacef, Kalina, Zaiane, Osmar, Kay, Judy
Technical report TR07-03. Comparing groups or sets is the main focal issue in statistics, and data mining research has also focused on automatically identifying values and instances that differ significantly across groups, known as contrast sets. Whether traditional statistics or the work on...
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2003
Oliveira, Stanley, Zaiane, Osmar
Technical report TR03-12. Despite its benefit in a wide range of applications, data mining techniques also have raised a number of ethical issues. Some such issues include those of privacy, data security, intellectual property rights, and many others. In this paper, we address the privacy problem...
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2004
Cai, Zhipeng, Lin, Guohui, Xue, Guoliang
Technical report TR04-12. For the Capacitated Multicast Routing Problem, we considered two models which are the Multicast k-Path Routing and the Multicast k-Tree Routing. We presented two improved approximation algorithms for them, which have worst case performance ratios of 3 and (2 + ρ) (ρ is...
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2006
Wagner, James, Tegos, Theodore, Wan, Xiang, Lin, Guohui
Technical report TR06-10. Background: Accurately quantifying the signature information of chemical shifts provides a foundation for accurate and complete sequential resonance assignment in protein NMR spectroscopy. A nearly complete assignment is a prerequisite for three dimensional protein ...
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2008
Zaiane, Osmar, Chu, Ben, Enright, Jessica
Technical report TR08-12. Computer tools for education, particularly those that allow a learner to work through many examples of a problematic type of exercise, can be helpful to that learner's understanding. Functional dependencies and their use in finding candidate keys are an area with...
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Inverted Matrix: Efficient Discovery of Frequent Items in Large Datasets in the Context of Interactive Mining
Download2003
El-Hajj, Mohammad, Zaiane, Osmar
Technical report TR03-08. Existing association rule mining algorithms suffer from many problems when mining massive transactional datasets. One major problem is the high memory dependency: either the gigantic data structure built is assumed to fit in main memory, or the recursive mining process...
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2004
Antonie, Maria-Luiza, Zaiane, Osmar
Technical report TR04-07. Typical association rules consider only items enumerated in transactions. Such rules are referred to as positive association rules. Negative association rules also consider the same items, but in addition consider negated items (i.e. absent from transactions). Negative...
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2003
Chen, Zhi-Zhong, Xu, Ying, Wen, Jianjun, Lin, Guohui, Jiang, Tao, Xu, Dong, Rizzi, Romeo
Technical report TR03-07. Protein NMR peak assignment refers to the process of assigning a group of \"spin systems\" obtained experimentally to a protein sequence of amino acids. The automation of this process is still an unsolved and challenging problem in NMR protein structure determination....
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2008
Zaiane, Osmar, Marcet-Palacios, Marcelo, Sheldon, John, Cheng, Dean
Technical report TR08-13. The vast number of on-line biological and medical databases available can be a great resource for medical researchers. However, the different types of data and interfaces available can be overwhelming for many medical researchers to learn. Moreover, the available...