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Detecting Changes in Large Data Sets of Payments Cards Data: A Case Study
Published on Aug 14, 20074504 Views
An important problem in data mining is detecting changes in large data sets. Although there are a variety of change detection algorithms that have been developed, in practice it can be a problem to
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Chapter list
Data Quality Models for High Volume Transaction Streams: A Case Study00:00
The Problem: Detect Significant Changes in Visa’s Payments Network00:04
Visa Payment Network01:12
The Challenge: Payments Data is Highly Heterogeneous01:24
Observe: If Data Were Homogeneous, Could Use Change Detection Model02:18
Key Idea: Build 104+ Models, One for Each Cell in Data Cube03:42
Augustus05:56
Some Results to Date06:54
Summary07:26