Premium Essay

The Quality of Date

In: Computers and Technology

Submitted By sabaninonda
Words 10818
Pages 44
The Quality of Data

Introduction Value Errors Missing Data and Bad Structures Entity Resolution Anonymous Resolution Conclusion

34 35 39 50 62 66

1

DATA

MINING

FOR

INTELLIGENCE

Introduction
Computer processors are faster than ever, storage is fairly cheap, network bandwidth is continually expanding, and information technologies are capable of integrating massive amounts of data. With all of these high-end systems and capabilities, there is still a limitation on performing effective analytics and much of this has to do with the quality of the data collected throughout the years. The real challenge lies in improving the accuracy of the data through better collection and representation methods. Only when this problem is appropriately addressed can one realistically expect to see improvement in the detection and analytics of fraud, terrorism, money laundering, and other critical areas. One high-profile situation emphasizes this point. It was reported1 that Senator Edward Kennedy (Massachusetts) was stopped while boarding airline fl ights on five different occasions because his name matched an entry on a government no-fly list. Additionally, Congressman John Lewis (Georgia) claims he was required to submit to additional security checks because his name also matched one on a watch list. In both cases, the data processed by these systems represented only a limited portion of what was necessary to properly perform an appropriate match. Ultimately the situations were resolved, but only after direct intervention from topranking officials at the Department of Homeland Security (DHS). In another case, 2 Sister McPhee, a 62-year-old nun and education advocate for the Catholic Church was repeatedly stopped over a ninemonth period (starting in 2003) because her last name matched that of an Afghani man using McPhee as an alias, with supposedly no fi rst name for

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