Title:
周期的事象のためのクラスタリング技術
Document Type and Number:
Japanese Patent JP2007519993
Kind Code:
A
Abstract:
A data processing system processes data arrays that collectively describe cyclic behavior of at least one variable in several entities in a physical process. Each cycle comprises several time slots. An input routine (2-4) receives multiple data arrays, each data array containing multiple data items, each of which describes a variable of an entity in one time slot. A magnitude-determination routine (2-6) determines a specific magnitude parameter, such as average, volume or peak, for each of the several entities. A scaling routine (2-8) scales the data arrays between entities such that the specific magnitude parameters are suppressed and only their shape is maintained. A training routine (2-10) trains a clustering system with a first plurality of the scaled data arrays, to determine a set of cluster centers. After training, a clustering routine (2-12) applies a second plurality of the scaled data arrays to the trained clustering system.
Inventors:
Hetyonen Kimo
Kun Prinen Pekka
Veff Wilainen Pecko
Kun Prinen Pekka
Veff Wilainen Pecko
Application Number:
JP2006546206A
Publication Date:
July 19, 2007
Filing Date:
November 26, 2004
Export Citation:
Assignee:
NOKIA CORPORATION
International Classes:
G06F17/30; G06F11/00; G06F11/30; G06F15/00; G06F17/18; G06F17/40; G06N3/00; G06N20/00; H04L12/24
Domestic Patent References:
| JPH07200300A | 1995-08-04 | |||
| JPH1170445A | 1999-03-16 | |||
| JP2002024251A | 2002-01-25 | |||
| JP2001188772A | 2001-07-10 | |||
| JPH10334155A | 1998-12-18 | |||
| JPH07141384A | 1995-06-02 |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda