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Detecting graph-based spatial outliers: algorithms and applications (a summary of results)
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Source International Conference on Knowledge Discovery and Data Mining archive
Proceedings of the seventh ACM SIGKDD international conference on Knowledge discovery and data mining table of contents
San Francisco, California
Pages: 371 - 376  
Year of Publication: 2001
ISBN:1-58113-391-X
Authors
Shashi Shekhar  University of Minnesota, Minneapolis, MN
Chang-Tien Lu  University of Minnesota, Minneapolis, MN
Pusheng Zhang  University of Minnesota, Minneapolis, MN
Sponsors
SIGMOD: ACM Special Interest Group on Management of Data
AAAI : American Association for Artificial Intelligence
Publisher
ACM  New York, NY, USA
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Downloads (6 Weeks): 14,   Downloads (12 Months): 75,   Citation Count: 16
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ABSTRACT

Identification of outliers can lead to the discovery of unexpected, interesting, and useful knowledge. Existing methods are designed for detecting spatial outliers in multidimensional geometric data sets, where a distance metric is available. In this paper, we focus on detecting spatial outliers in graph structured data sets. We define statistical tests, analyze the statistical foundation underlying our approach, design several fast algorithms to detect spatial outliers, and provide a cost model for outlier detection procedures. In addition, we provide experimental results from the application of our algorithms on a Minneapolis-St.Paul(Twin Cities) traffic dataset to show their effectiveness and usefulness.


REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

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V. Barnett and T. Lewis. Outliers in Statistical Data. John Wiley, New York, 3rd edition, 1994.
 
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D. Hawkins. Identification of Outliers. Chapman and Hail, 1980.
 
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E. Knorr and R. Ng. A unified notion of outliers: Properties and computation. In Proc. of the International Conference on Knowledge Discovery and Data Mining, pages 219-222, 1997.
 
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D. Yu, G. Sheikholeslami, and A. Zhang. Findout: Finding outliers in very large datasets. In Department of Computer Science and Engineering State University of New York at Buffalo Buffalo, Technical report 99-03, http://www.cse.buffalo.edu/tech-reports/, 1999.

CITED BY  16

Collaborative Colleagues:
Shashi Shekhar: colleagues
Chang-Tien Lu: colleagues
Pusheng Zhang: colleagues