morph

35
2013/01/03 P:1/35 Morphology analysis for technology roadmapping: application of text mining text mining R&D Management R&D Management (I.F.: 2.507 2.507) Volume 38, Issue 1, pages 51 68, January 2008 Byungun Yoon Professor at Dongguk University ( ) Rob Phaal is Principal Research Associate in Centre of Technology Management, Cambridge U. David Probert is Reader in Technology Management, Head of CTM Manufacturing Engineering Tripos (MET), Centre of Technology Management, Cambridge U. Paper Information

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Page 1: Morph

2013/01/03 P:1/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Morphology analysis for technology roadmapping: application of text mining�� �� �� � �� � �� � � � �� �� ��

!" # $ %& '( )* + ,- . /

text mining

01 23 ,4 & 56 . 7 /8 9 56 :; <=> ? @ AB C . @ AB CD E FG H IJ KL MN

1 OP R&D ManagementR&D Management (I.F.: 2.5072.507) Volume 38, Issue 1, pages 51 Q 68, January 2008RR RRSS SS TT TT

Byungun Yoon Professor at Dongguk University (

UV W < XY Z [)

Rob Phaal is Principal Research Associate in Centre of Technology Management, Cambridge U.David Probert is Reader in Technology Management, Head of CTM Manufacturing Engineering Tripos (MET), Centre of Technology Management, Cambridge U.

Paper Information

Page 2: Morph

2013/01/03 P:2/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �

\] ^_` ab c ^d` ]e fg hi jk

lm c no _` b ] a

pq rs g tu vw xy

(

rs z{ | }~ �� | � �� �)�` _� �` �` o �� �m �� a� � �

� � �� � �� �i rs z{ ��

(

tu | �� �� | �� �� �

)� � ^ �` a` �` o �

�� tu � �� i   ¡¢ £

(

¤¥ � � | rs � � | ¦§

mapping)\ � �b � ^_ m ^d` ]� ¨© ª« �¬ i ­¬ jk

®` ] c �b � d` ] �

¯° ±² | ³´ µ¶ g ·¸ « ¹ �º

» ¼½ ¾

Paper & Report Structure

Page 3: Morph

2013/01/03 P:3/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Technology roadmapping (TRM)

• Extensively applied strategic planning, linking technology and product developments to linking technology and product developments to business goals and market opportunities in a visual frameworkbusiness goals and market opportunities in a visual framework, supporting research and capital investment decisions, and enabling communication, alignment and consensus.

• Nevertheless, many companies, especially medium and small companies, still have difficulties in implementing and sustaining roadmapping, due to a number of factors (the time, cost and effort associated with maintaining what can be a complex process).

¿À ÁÂÃ Ä )Å ÆÇ È; É KL MN & Ê ËÌ ÍÎ Ï

• Another factor that hinders the adoption of the method is a lack of quality input data on markets, competitors and technology, which often relies on knowledge gathered from expert participants in workshops.

ÐÑ 2 À ÒÓ Ô Õ Ö× Ø& Ù K ) ,- D ÚÛ

The objective of this paper is to Propose a New RoadPropose a New Road--mapping Methodologymapping Methodology• uses a systems-based technique, rather than expert-based approach

/ ÜÝ Þ ßà á 'â

• using information that has been accumulated in databases from both companies and governments.

/ã Ø ,- äå æ çè éê Ä D ÁÂ & Ã Ä

• traditional roadmaps tend to concentrate on high-level strategic planning of products and technology at a discrete point in time, the new approach aims to develop a detailed view of possible product and technology configurations that is easy to update.

; < ë Ëì & Þ í îÁÎ ÏD !" = KL @ A(

ïÝ D KL MN ð ð ñò ë Ë D

)

Introduction

J ó ôõ ö÷ ø ù . úû ü

1.

/ '( ,- & !" # $ Øý J þ ÿ ,- � �

2.

( / * +� � : O� 8 9 ,- Ô (

� � 23 + :

)

� à 23 ,4

3./ * +� �D E F . :> ? !"

(

# $& 23 Å Æ

)

@ AB C

4.@ AB C H� / : �� !" & KL D � . > � �� � :D �� Þ � & MN

Page 4: Morph

2013/01/03 P:4/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �

\] ^_` ab c ^d` ]� fg hi jk

lm c no _` b ] a

pq rs g tu vw xy

(

rs z{ | }~ �� | � �� �)�` _� �` �` o �� �m �� a� � �

� � �� � �� �i rs z{ ��

(

tu | �� �� | �� �� �

)� � ^ �` a` �` o �

�� tu � �� i   ¡¢ £

(

¤¥ � � | rs � � | ¦§

mapping)\ � �b � ^_ m ^d` ]� ¨© ª« �¬ i ­¬ jk

®` ] c �b � d` ] �

¯° ±² | ³´ µ¶ g ·¸ « ¹ �º

» ¼½ ¾

Paper & Report Structure

Page 5: Morph

2013/01/03 P:5/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Technology roadmapping (TRM) /� P � �� � � !"

/

KL

VS

ÒÓ �� � D H� !

"# $ % &' () *+ � , -. / , 0 12 3

Background

4 5 67 8 http://en.wikipedia.org/wiki/Technology_roadmap

Page 6: Morph

2013/01/03 P:6/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Knowledge discovery in textual databases (Text Mining) � ð Ç ÈB CD * + ,- 9: . � à 1 H ; � < =D ,4

Background

4 5 67 8 > ?@

Data Mining

A B CD E

FG H

/

I JH KL M J

NO A B FGH

/

I J H KL P Q RS T

U I A B P VI FG H

/

WXY RZ [

U I A B\ WX] ^ Z [

=>

_` ab ] ^

c O def Jg h

Page 7: Morph

2013/01/03 P:7/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Morphology analysis

"# $ % &' () *+ � , -. /i 0 1j k

Background

Page 8: Morph

2013/01/03 P:8/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �

\] ^_` ab c ^d` ]� fg hi jk

lm c no _` b ] a

pq rs g tu vw xy

(

rs z{ | }~ �� | � �� �)�` _� �` �` o �� �m �� a� � �

� � �� � �� �i rs z{ ��

(

tu | �� �� | �� �� �

)� � ^ �` a` �` o �

�� tu � �� i   ¡¢ £

(

¤¥ � � | rs � � | ¦§

mapping)\ � �b � ^_ m ^d` ]� ¨© ª« �¬ i ­¬ jk

®` ] c �b � d` ] �

¯° ±² | ³´ µ¶ g ·¸ « ¹ �º

» ¼½ ¾

Paper & Report Structure

Page 9: Morph

2013/01/03 P:9/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �ConceptMN H / � lm n op q B

In this paper, roadmaps are classified using two dimensions

ObjectiveP rs turs tu ø vD # $ . w ñ� x� x � :D H� ��

level of applicationP y / z{ ñ Y âY â

//

Y |Y | Ô ! }~ ? }! }~ ? } Ô �� ~ !"�� ~ !"

Morphology-based TRM

ú* D ��

Page 10: Morph

2013/01/03 P:10/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Concept�� �� �� � 3� �� �� �

Morphology-based TRM

Page 11: Morph

2013/01/03 P:11/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Process &' �� � �

(

�� � ��

)

The overall process consists of three modules, each of which includes sub-processes.

Morphology-based TRM

Page 12: Morph

2013/01/03 P:12/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Applications 3� �� � ��

Market Pull vs Technology Push�� ÒÓ � � & KL � �

Radical vs Incremental innovation�� ò ë Ë D � � ß� Ï& � �ì � �  ¡ ¢

Advantages •

� Ü£ Ô ; � B C . ¤¥ �¦ ��

. •

ö÷ KL MN H� íÀ § ¨& Î Ï

© 2 KL * ª« ¬ à ­ . ®� * ª 9: � à 1 ,4 ¤¥ !" ¯ �° ±

.

Disadvantages•

I È < =² ³ . ÿ; o @ A´ µ& � � 23 +> ? ¶·

. •

¸¹ ò ºD 23 +& »¼ D @ A´ µ½ ¾¿ !1 H ÀÁ ò ÂD MN

Morphology-based TRM

Page 13: Morph

2013/01/03 P:13/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �

\] ^_` ab c ^d` ]� fg hi jk

lm c no _` b ] a

pq rs g tu vw xy

(

rs z{ | }~ �� | � �� �)�` _� �` �` o �� �m �� a� � �

� � �� � �� �i rs z{ ��

(

tu | �� �� | �� �� �

)� � ^ �` a` �` o �

�� tu � �� i   ¡¢ £g ÃÄ

(

¤¥ � � | rs � � | ¦§

mapping)\ � �b � ^_ m ^d` ]� ¨© ª« �¬ i ­¬ jk

®` ] c �b � d` ] �

¯° ±² | ³´ µ¶ g ·¸ « ¹ �º

» ¼½ ¾

Paper & Report Structure

Page 14: Morph

2013/01/03 P:14/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Module 1: product analysis �� � �

Step 1

/ 2Å D ÆÇ � & ÈÉ Ê :; o !" @ A´ µ

morphological matrix is constructed from the attributes and levels that a subject can be characterized

Step 2 !" # $ %: . � �& � à 1 © 2 23 +

keywords are extracted from product documents that are collected for the specified product area. Text mining is applied to execute this process

Step 3

/ 23 + 1 �� !" D # $ @ A

identify the configurations of existing products, starting by matching extracted keywords with particular levels in the morphological matrix

Step 4

01 Ï !" D H� ��

compose the list of new product opportunities

Methodology

Figure 2. Example of the conversion of keyword vector into morphological matrix.

Page 15: Morph

2013/01/03 P:15/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Module 2: technology analysis �� � �

Step 1

� Ë = 01 v Ç !" # $è é D © 2 KL . & KL Â D ÌÍ 2 ëdefine technology trees for the product explored in the first module

Step 2 � � ÆÇ KL É Ê& ; < KL @ A´ µ

morphological matrix of the technology is defined in the same way as for the first module. However, analysts must determine for which level in the technology tree the morphological matrix will be made

Step 3

/ * +� � 01 KL * ª: D 23 +

extract keywords from technology documents by text mining

Step 4 1 Î� KL D @ A . 23 + = Ï A´ µ! ×

identifies the configurations of existing technologies, matching keywords with the morphology matrix

Methodology

Page 16: Morph

2013/01/03 P:16/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Module 3: mapping �� � �� Ð ÑÒ %Ó ÔÕ Ö

Step 1 Ã × 2 ëì B CØ !" = KL @ A´ µ ë EÙ :

link the two morphology matrices by analyzing the correlation between each level.

This linkage is based on the co-occurrence analysis of keywords

Figure 3. Example of morphology-related keywords vector.

Methodology

Page 17: Morph

2013/01/03 P:17/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Module 3: mapping �� � �� Ð Ñ # �� Ú Û $ % ÜÝ Õ Ö

Step 2 Ã! × B C ; <

(

!" = KL

)

D © 2 ´ µ . Þ ß ÆÇ !" à ì © 2 D KL & É Ê

As a result of the pair-wise analysis, a correlation matrix is constructed

Examine technological requirements to meet product needs by referring to the correlation matrix

Figure 4. Example of conversion process through correlation matrix.

Methodology

Page 18: Morph

2013/01/03 P:18/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Module 3: mapping �� � �� Ð ÑÒ %Ó ÔÕ Ö

Step 3

Ø KL �� á â N ã� . ä&

module1

D !" MN å Ê

visualize the plan of technology development, aligned with the product roadmap that has already established in the first module.

Methodology

Page 19: Morph

2013/01/03 P:19/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �

\] ^_` ab c ^d` ]� fg hi jk

lm c no _` b ] a

pq rs g tu vw xy

(

rs z{ | }~ �� | � �� �)�` _� �` �` o �� �m �� a� � �

� � �� � �� �i rs z{ ��

(

tu | �� �� | �� �� �

)� � ^ �` a` �` o �

�� tu � �� i   ¡¢ £

(

¤¥ � � | rs � � | ¦§

mapping)\ � �b � ^_ m ^d` ]� ¨© ª« �¬ i ­¬ jk

®` ] c �b � d` ] �

¯° ±² | ³´ µ¶ g ·¸ « ¹ �º

» ¼½ ¾

Paper & Report Structure

Page 20: Morph

2013/01/03 P:20/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Data collection&' æç èé ê

• the product manuals of Nokia mobile phones and patent documents regarding specific technologies of mobile phones were collected from internet websites. In total, 8484 product manuals were collected, covering the period 1995 Q 2004,

•• 77 77 patent documents related to the antenna technology for mobile phones filed during the same period, extracted from the US Patent and Trade Organizations (USPTO) database.&' � ë Ú ìí î � ï ðñ òó � ôõ

• The collected data were separated into two sets to develop (train) and test the proposed approach.

• Training data associated with the period 1995 Q 2002 were used to visualize past trends of products or technology

• test data from the period 2003 Q 2004 were analyzed to validate the product Q technology roadmaps produced on the basis of the training data.

Illustration

Page 21: Morph

2013/01/03 P:21/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Product analysis

� � 'â ö÷ . ½ ? øù ú !"!" @ A´ µ rs J

7

Z à ì

/

23 � . û n à ì �

ÆB õ ã ü � ýÉ Ê

þÿ * ª: �

461

n © 2 D 23 + . � È: � �

48

n 23 + = !" @ A´ µD à ì &

É Ê� 2�

� ý à ì D ò � É Ê . �õ

648

ýò � D @ A

648 (i.e. 3 � 3 � 3 � 2 � 3 � 2 � 2=648)

Illustration

Page 22: Morph

2013/01/03 P:22/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Product analysis

9 Á ÒÓ

(1995-2002)

� � D

53

ý Ø � !" . H� rs �

31

ý @ A•

� :

(2003-2004)

ÏD !" �� & H� @ A �

648 Q 31=617

ý

� l 1

2001-2004

Ò p Ø �D !" @ A

Illustration

� P1.

8617

ý H� @ A w ÿ �à 'â & ÒÓ �� ��� ß ¶· � � ° � ñ� ¯ �

2.

32

ý !" � � 9: r

s 1

19

ý @ A � > ÷ �

�� D H� ì

3.

8

19

ý H� @ A: . �� ý � : � ÒÓ �1

¦ . È�

13

ý� Î�D !" �  � � � : .8 � � H� / � ð !"D �õ @ A : �� � :!" D @ A& ��

(

 ��� ö÷ Þ ÈD H ?ì

)

Page 23: Morph

2013/01/03 P:23/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Technology analysis

/ KL !

(Technology tree)

"¥ > ? KL B C . rs ÆÇ KL Â D þ ÌÍ•

½ KL @ A´ µ rs J

6

Z à ì

/

23 � . û n à ì Æ� ã ü � ýÉ Ê• 77

� '( * ª ��

226

n 23 + . � È: � �

56

n = KL @ A � 2• 1995-2002

D

69

� '( . H� rs 1

61

ý @ A

9 Á Ò p �D

53

ý Ø � !" . � ��

31

ý KL @ A � �

Illustration

Figure 5. Technology tree of mobile phone.

Page 24: Morph

2013/01/03 P:24/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Technology analysis

'( KL @ A � �6 # À !" @ A D � �6

8 ñ÷ n �� D �¦ . Å J '( $ ÿ à % $D Þ ß . &' ñ � × ¦ � D '( ( )�

8 ÷ E F á *P û n '( ½ +� È, D @ A . ò � À È- '( �

Illustration

Page 25: Morph

2013/01/03 P:25/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Product .. .. Technology roadmap

/ m n @ A´ µ ÆÉ Ê × yD © 2 0 6 . 1� !" @ A = KL @ A  2 0�•

*

7

� � P û n2 D !" @ A × yD KL @ A& 2

(

� � ñ 3 ZDPearson

© 2 0 6

)

Illustration

4545 4545

(

67 89 :)

úû üD ; !" ; = ; KL ; <J= ë Ë D > ? 6 . © 2 ì Þ � y@ /Pearson

As Chi-Square Test

Page 26: Morph

2013/01/03 P:26/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Product .. .. Technology roadmap

1 Ï !" @ Aè × y Ô é ÿD KL � A . 1� ñ � ( )~ H> ? �� �

Illustration

� P1.

� *8

: . '( @ A

1 &3 B C ¯ � . ä �

2000

D =

2002

DB � E Y '( FùG H õ Iý �

2.

J F ÿ ¯ � Ï !"

1

K .L � 9 G M N OP æ Q ©2 '( KL R Þ ßè é ©2 KL '( . � &S ò �

�T '( ( )�

Page 27: Morph

2013/01/03 P:27/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Product .. .. Technology roadmap

!"

-

KL U VN � � !" = KL @ A � D W X� � ú YZ D [ V KL J Z . � é

ÿ\ ý KL @ A í� ] ¨B ^_ � ý !" @ A D ÿ `�

� aD Ø È H� b Z y / � È� c � à ì ~ !"

Illustration

Figure 6. Product Q technology roadmap of mobile phone

Page 28: Morph

2013/01/03 P:28/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Validation de fg h ij k lm nde fg h ij k lm nde fg h ij k lm nde fg h ij k lm n

/o pq

(1995-2002)

01 D \ ý '( KL @ A . Þ x < × rs q Â

(2003-2004)Â D '

( . E F �¦ È: m Ç '( C tu

=>

þÿ w� m ýv � 1 ¦ . � w ñ � � ó ö÷ Þ

Èw D H / ì

'â ö÷

In this research, key aspects of the method were reviewed by experts (designers and technologists) from LG Electronics

Illustration

x IP* y: v � ¡ ü8 9

LG

'â × & ö÷ Þ Èw D 1w . � � 7{z � 'â D 5& � ] ¡ ¢ KL ¯ �& { rD Ê &ì

) À | ó }~ D w u ÷ � �=>

8 nè � ÜÝ ì D

R&D

Þ Èw .Ç Èà á 'â D à ��(

þÿ 'â { rD Ê &ì ®ò �

)

Page 29: Morph

2013/01/03 P:29/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �

\] ^_` ab c ^d` ]� fg hi jk

lm c no _` b ] a

pq rs g tu vw xy

(

rs z{ | }~ �� | � �� �)�` _� �` �` o �� �m �� a� � �

� � �� � �� �i rs z{ ��

(

tu | �� �� | �� �� �

)� � ^ �` a` �` o �

�� tu � �� i   ¡¢ £

(

¤¥ � � | rs � � | ¦§

mapping)\ � �b � ^_ m ^d` ]� ¨© ª« �¬ i ­¬ jk

®` ] c �b � d` ] �

¯° ±² | ³´ µ¶ g ·¸ « ¹ �º

» ¼½ ¾

Paper & Report Structure

Page 30: Morph

2013/01/03 P:30/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Managerial implications�� � � � �� �� � # � �� � �� � ��

• Risk î M N = � º� . Ê & M � Ë 1 . è é ! ÉD !" = KL @ A� (à ì > 6 Ô

Æ à ì D É Ê 6

)

• Accurate use of quantitative analysis requires careful identification, selection and filtering of source data

P o� ò º �

/

23 + Ç È� & × y& »¼ � � . � ¾¿ »¼ ¶· E F&

»¼ D @ A � w

=>Text Mining

D ��

!" B C = KL B C H� � �> ? . � Þ í> ?m � Â Dmapping

• MA-based TRM can be practised in both a top-down (market pull) and bottom-up (technology push) orientation.

Conclusions

Page 31: Morph

2013/01/03 P:31/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Limitations and Future Research�� � � � �� �� �� �

1.

@ AB C � � O� Â �D > ? 6

(Attribute)

& É Ê

(Level) . Ç È O� ë Ë ? 6 .

EX

P ÁÂ Ô �  Ô ¡ ¢£ þÿ H� Ø !" 6 ; Ô ¤ $ Ô ¥ / Á �  ) ë Ë ? 6¦§ J ò � É ÊD > ? 6 . �� Á w ñ� � ¨õ ¼ ©& Öª2.

ö÷ Þ Èw ò ñ / : ° � « ¬­ ® . � � 01 ¯ 9 !" = KL @ A  D ! É� ��

° � . v � ± Èà á 'â ² �& � z ° ±

3.

� ³ Ò p � Hà ­D � ¯ ,- . 5 O ¤´ & Ê &ì ~ µò J Æâ �� D ¶ � �· *

ª�¸ æ¹ º � » � �

( / ~ ¯ � È� D 6 ; Þ È : H ¼½ u Æ à ì D @ A

(

äå � u ¾ ÷ ¿ � � O� >

? 6 D ��

)

À / à Á ¤´ ~ KL ¤´ D B C . : "¥ !" KL ¯ � , ° ±& « ¬­ ®

(

äå� u ¾ã ¿

)

Î H ¼D :à | rs = �� 8 Ä Þ Èw . 3 �� / à | !" ¯ �� (

Å ú

)

Conclusions

Page 32: Morph

2013/01/03 P:32/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �

\] ^_` ab c ^d` ]� fg hi jk

lm c no _` b ] a

pq rs g tu vw xy

(

rs z{ | }~ �� | � �� �)�` _� �` �` o �� �m �� a� � �

� � �� � �� �i rs z{ ��

(

tu | �� �� | �� �� �

)� � ^ �` a` �` o �

�� tu � �� i   ¡¢ £

(

¤¥ � � | rs � � | ¦§

mapping)\ � �b � ^_ m ^d` ]� ¨© ª« �¬ i ­¬ jk

®` ] c �b � d` ] �

¯° ±² | ³´ µ¶ g ·¸ « ¹ �º

» ¼½ ¾

Paper & Report Structure

Page 33: Morph

2013/01/03 P:33/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Æ Ç

g È ng È ng È ng È n

Consistency9

(

� �

) î

!" # $ %& '( ,-

=>

/

text mining

01 23 ,4 & 56

=>

/ 8 9 56 :; <=> ? @ AB C

=>

@ AB CD E FG H IJ KL MN & !" KL ¯ � � � �

v ± È J ÈË ÌÍÎ 'â ö÷ &Ï J ² �

(

w ñÐ � ³ 'â à � = ö÷)Ñ Ò nÑ Ò nÑ Ò nÑ Ò n

Completeness 10

(

� �

) î Ó ÔÕ Ö ×Ø � Ù

• Morphology Analysis, Technology Road Mapping & Text mining

ÚÛ Í Ì º �Ü á

� ÝÞ º � Ô ! ß1 Ã | �Z �

àÃ Ü á � û ü ¿ á

â ã nâ ã nâ ã nâ ã n

Correctness7

(

� �

) î Ó äå � æ ç � Ù•

,-è B õ Þ È �� & �� m ��•

à | y / é ¿À ,- D � &ì Ô Text Mining

& @ A´ µD Ê &ì )Å Æ

• (

�

)

!" à ì ò ) À

(

� :)

ÒÓ �� & �� é `

'( @ A ò ) À � : KL ê � & � �

(

KL   �ë . EX:

ì í Ø �à á © �&

PC)

PS

î ïð ð ñòó ôõö÷ ø ùú ûüý þ ÿ ��

Page 34: Morph

2013/01/03 P:34/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Æ Ç

�� � � k ���� � � k ���� � � k ���� � � k �� �� ��

/

Text MiningText Mining

½ � ð Ç È O� D * + ì ,- ¦ ;ì ,- > ÷ � O�•

� Ë H�

1.

� Û �� � ~ �� D * +� : § z

=>

� <* � � D '( �� = # $ Øý

� � ; ��

2.

H �u Ï >

/

�� [â Ô �� 'â :� ¥ ¡ ¢* +� �& � Ë � �D � &ì

g �� � �� k !" h ig �� � �� k !" h ig �� � �� k !" h ig �� � �� k !" h i

(

@ AB C ò � # $Ï %&

)•

>' D (� � T L D " ) ~

TRIZ

Þ Èw

? 6 Â D 2 ëì . O� �ò ÷ ­ � � * © 2 0 6 Z+ . / × y Þ C

(Correspondence Analysis, CA)

Î , ( Ô � ��(

® H� O� ë Ë ? 6

)

Page 35: Morph

2013/01/03 P:35/35

� � � �� � � � �� � � � � �� �� � � � � � � � � � � �Q&A

ú* D !" = KL B C >' À T L D " ) -�

m � Â D

Fitting/Mapping . Ã . � $ �/ 0 ñ

trial and error

& 1 Õ [ 2D E F

(

� = 3 v � ]- 4~ { r

)