Freitag, 15. Juli 2011

Strategies can be divided into those


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Strategies can be divided into those in which
in which investments can be selected by managers, known as

“discretionary/qualitative”


in which investments are selected
using a computerized system, known as

“systematic/quantitative”

Technical analysis was yesterday read how (cluster analysis, genetic algorithms and fuzzy logic shapes the industry)


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Clustering Main article: Cluster analysis
Cluster analysis or clustering is the assignment of a set of observations into subsets (called clusters) so that observations in the same cluster are similar in some sense. Clustering is a method of unsupervised learning, and a common technique for statistical data analysis.








(triple matrix m.cap balanced intersection of (global BMI vs NASDAQ+NYSE)


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(triple matrix)


description=GLOBAL BMI 7000 SYMBOLS
skipp negative 200 / 50 day change

GLOBAL BMI SP marketcap>=750.0 mio USD OPTION=+ONLYK-means clustering using exchange method

matrix:6
Group condition

Symbol=s
change=p2
PctChgFrom50-dayMovingAvg=m6
PctChgFrom200-dayMovingAvg=m8

Data had dimension: 3  with number of rows: 1074
Number of final clusters=8
Compactness=11.278020557598602

Cluster-center :(BMI)=(28.86, 45.78, 6.25)
ARJ WAC APAC HK BAS ARIA IDIX AEA VICL SUG MPEL BLUD MILL



NYSE+NASDAQ 
skipp negative 200 / 50 day change  
marketcap>=750.0 mio USD 
K-means clustering using exchange method

Symbol=s
Change=p2
PctChgFrom50-dayMovingAvg=m6
PctChgFrom200-dayMovingAvg=m8


Data had dimension: 3  with number of rows: 1364
Number of final clusters=8
Compactness=10.678350805431931

Cluster-center :(NASDAQ&NYSE) = (38.48, 48.35, 6.32) 
JVA APAC ADLR HK BAS REDF KONA PHMD TSTF AEA OBCI ALAN HNSN GENE ICGN BFSB