Machine Learning Meetup

Introduce

Bigdata Analysis Group

Bigdata Intelligence Platform

Bigdata Intelligence Platform Machine Learning Meetup

()

2013-2014 () .

Bigdata Intelligence Platform Machine Learning Meetup

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:2014 10 24 : . 1: : , ,

()

DMC Device Healthcare & sensing lab ()

2: :

Bigdata Intelligence Platform Machine Learning Meetup

2

:2014 11 21 : . 1: (TDA:Topological Data Analysis) :

2: (TRIZ) :

LG

Bigdata Intelligence Platform Machine Learning Meetup

3

:2014 12 19 : . 1: : LG KB ICT 2: (SIFT)

: LG

Bigdata Intelligence Platform Machine Learning Meetup

4

:2015 1 19 : 1: :

2: : 3: ( )

: KB

SKC&C

Bigdata Intelligence Platform Machine Learning Meetup

Paradigm Shift

Bigdata Intelligence Platform Machine Learning Meetup

20 -

2030 20 -

Bigdata Intelligence Platform Machine Learning Meetup

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Bigdata Intelligence Platform Machine Learning Meetup

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Bigdata Intelligence Platform Machine Learning Meetup

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. ...

Bigdata Intelligence Platform Machine Learning Meetup

1. (Transitionists) 2. (Expensionists)3. (Mazimizers) 4. (Optimizers5. (Inflectionists)6. (Dismantlers) 7. (Feedback Loopers) 8. (Backlashers)9. (Last Milers)10 . (Contexualists)11 . (Ethicists) 12 . (Philosophers) 13. (Theorists) 14. (Legacists) "2045"

Bigdata Intelligence Platform Machine Learning Meetup

Bigdata Intelligence Platform Machine Learning Meetup

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Bigdata Intelligence Platform Machine Learning Meetup

Bigdata Intelligence Platform Machine Learning Meetup

(Machine Learning) ?

Data Human Computer

.

Bigdata Intelligence Platform Machine Learning Meetup

Data ....

(Machine) + Learning () () . Teach computer how to learn from data

Data .

Bigdata Intelligence Platform Machine Learning Meetup

Data

Model

Bigdata Intelligence Platform Machine Learning Meetup

(Machine Learning)

Supervised learning : Data (Category, Labeled) ex: spam mail

Unsupervised : Data SNS, Twitter

Semi-supervised learning : + Reinforcement learning :

Evolutionary learning : Meta Learning : Landmark of data for classifier

Bigdata Intelligence Platform Machine Learning Meetup

Machine Learning Model . .

(Training Data)

Learning Algorithms Predictive Model

(Actual Data)

Forecast Prediction ClassificationClusteringProactive

Optical character recognition Face detection Spam filtering Topic spotting Spoken language understanding Medical diagnosis Customer segmentation Fraud detection Weather prediction

SupervisedUnsupervisedSemi-supervised

StructuredUnstructuredSemi-structured

Example Data

Bigdata Intelligence Platform Machine Learning Meetup

Netwrok?

Neural Network : ex: Deep Learning

Bayesian Netwrok (DAG: Directed Acyclic Graph)

Markov Network

Bigdata Intelligence Platform Machine Learning Meetup

Perceptron Deep Learning

x1

x3

x2

w3w2

w1o

Neural Network

Bigdata Intelligence Platform Machine Learning Meetup

Markov Network Bayesian Netwrok

Bigdata Intelligence Platform Machine Learning Meetup

Hypothesis : h(x)=ax+b

k= 1

n

(h (xk )y k )2

h (x )= 0+ 1x

Linear Regression

Bigdata Intelligence Platform Machine Learning Meetup

Hypothesis : h(x)=ax+b

J ( )=k= 1

n

(h (xk )yk )2

J (0,1 )=12m

i= 0

m

(0+ 1x iy i )2

Minimize:

h (x )=0+ 1 x

Linear Regression

Bigdata Intelligence Platform Machine Learning Meetup

J (0,1 )=12m

i= 0

m

(0+ 1x iy i )2

Linear Regression

Bigdata Intelligence Platform Machine Learning Meetup

Hypothesis : h (x )= 0+ 1x

Linear Regression

Bigdata Intelligence Platform Machine Learning Meetup

Hypothesis : h (x )= 0+ 1x

Linear Regression

Bigdata Intelligence Platform Machine Learning Meetup

= (X T X )I XT y

Y= 0+ 1X

0=Y 1X

1=i= 1

m

(x ix ) (y iy )

i= 1

m

(x ix )2

.....

Linear Regression

Bigdata Intelligence Platform Machine Learning Meetup

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(catalytic technology): . .

Bigdata Intelligence Platform Machine Learning Meetup

Thank you !.

Questions?

daengky@naver.com

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