发明名称 |
System for identifying clusters in scatter plots using smoothed polygons with optimal boundaries |
摘要 |
An apparatus and method for identifying clusters in two-dimensional data by generating a two-dimensional histogram characterized by a grid of bins, determining a density estimate based on the bins, and identifying at least one cluster in the data. A smoothed density estimate is generated using a Gaussian kernel estimator algorithm. Clusters are identified by locating peaks and valleys in the density estimate (e.g., by comparing slope of adjacent bins). Boundaries (e.g., polygons) around clusters are identified using bins after bins are identified as being associated with a cluster. Boundaries can be simplified (e.g., by reducing the number of vertices in a polygon) to facilitate data manipulation.
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申请公布号 |
US6944338(B2) |
申请公布日期 |
2005.09.13 |
申请号 |
US20010853037 |
申请日期 |
2001.05.11 |
申请人 |
BECTON DICKINSON AND COMPANY |
发明人 |
LOCK MICHAEL D.;DALAL SUNIL S.;GLUHOVSKY ILYA |
分类号 |
G01N33/48;G01N15/10;G01N15/14;G01N21/49;G06F17/18;G06K9/62;(IPC1-7):G06K9/00 |
主分类号 |
G01N33/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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