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N E U R A L N E T W O R K S
&  
A R T I F I C I A L
I N T E L L I G E N C E
By
Ishita Agarwal
N E U R A L
N E T W O R K S
MCCULLOCH & WALTER PITTS[1940]
What is Neural Network?# 1
# 2
# 3
How do they function?
Usage
ARTIFICIAL
INTELLIGENCE
VIRTUAL
REALITY
AUGM
ENTED
REALITY
I N T E L L I G E N C E
# 1
LEARNING
# 2
UNDERSTANDING
# 3
APPLYING
KNOWLEDGE
BIOLOGICAL
NEURALNETWORK
100 Billion NEURONS
N E U R O N A S B L O C K
D I A G R A M
Aritificial Neural netowrk
T h r e s h o l d
A c t i v a t i o n
R e d u c e s s i z e o f
i n p u t , b r e a k i n p u t i n t o
m u l t i p l e s m a l l e r s i z e
i n p u t s
P O O L I N G
M u l t i p l y e a c h p i x e l
w i t h 3 * 3 / 5 * 5 m e t r i c s
  e x t r a c t e d g e s & n e w
f e a t u r e s
C O N V O L U T I O N
A n o t h e r c o n v o l u t i o n
l a y e r , a s s i g n w e i g h t t o
e a c h p i x e l r e f e r r e d
f r o m t r a i n e d d a t a &
r e t u r n s a m e s i z e a s o f
o r i g i n a l i m a g e
F U L L Y C O N N E C T E D
N E U R A L N E T W O R K S
T Y P E S O F L A Y E R S
D E E P
L E A R N I N G
NEURAL NETWORKS
# 1
SUPERVISED
# 2
UNSUPERVISED
# 3
HYBRID
L E A R N I N G
A L G O R I T H M S
Error correction rule
Boltzmann
Hebbian
 AI
Classification
Clustering
Pattern Association
Robotics
Medical Diagnosis
I m a g e p r o c e s s i n g
u s i n g R - C N N
Convolution Neural Network
TRAINED DATA SET
FACEBOOK
Facebook (and Instagram) can use all the photos of the billion
users it currently has
PINTEREST
Pinterest can use information of the 50 billion pins that are on its
sitePinterest can use information of the 50 billion pins that are on
its site
GOOGLE
Google can use search data,images ,region based data points etc.
C A N A B R A I N C O M P U T E R
I N T E R F A C E C O N V E R T
Y O U R T H O U G H T S T O
T E X T ?
Functional MRI / Near Infrared
Imaging can detect neuron signals
based on metabolic activities
which becomes
# 1
# 2
# 3
Electrocorticography [ECoG] /
Magnetoencephalography[MEG] can be
used to detect electromagnetic activities in
neurons responding to speech
Phones-A database of patterns of
neural signals that could now be
matched to speech elements or
“phones”
Measuring Neuron activity ..
Thank You

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Artificial Intelligence & Neural Networks

  • 1. N E U R A L N E T W O R K S &   A R T I F I C I A L I N T E L L I G E N C E By Ishita Agarwal
  • 2. N E U R A L N E T W O R K S MCCULLOCH & WALTER PITTS[1940] What is Neural Network?# 1 # 2 # 3 How do they function? Usage
  • 4. I N T E L L I G E N C E # 1 LEARNING # 2 UNDERSTANDING # 3 APPLYING KNOWLEDGE
  • 6.
  • 7. N E U R O N A S B L O C K D I A G R A M
  • 9. T h r e s h o l d A c t i v a t i o n
  • 10. R e d u c e s s i z e o f i n p u t , b r e a k i n p u t i n t o m u l t i p l e s m a l l e r s i z e i n p u t s P O O L I N G M u l t i p l y e a c h p i x e l w i t h 3 * 3 / 5 * 5 m e t r i c s   e x t r a c t e d g e s & n e w f e a t u r e s C O N V O L U T I O N A n o t h e r c o n v o l u t i o n l a y e r , a s s i g n w e i g h t t o e a c h p i x e l r e f e r r e d f r o m t r a i n e d d a t a & r e t u r n s a m e s i z e a s o f o r i g i n a l i m a g e F U L L Y C O N N E C T E D N E U R A L N E T W O R K S T Y P E S O F L A Y E R S
  • 11. D E E P L E A R N I N G NEURAL NETWORKS # 1 SUPERVISED # 2 UNSUPERVISED # 3 HYBRID
  • 12. L E A R N I N G A L G O R I T H M S Error correction rule Boltzmann Hebbian
  • 14. I m a g e p r o c e s s i n g u s i n g R - C N N Convolution Neural Network
  • 15. TRAINED DATA SET FACEBOOK Facebook (and Instagram) can use all the photos of the billion users it currently has PINTEREST Pinterest can use information of the 50 billion pins that are on its sitePinterest can use information of the 50 billion pins that are on its site GOOGLE Google can use search data,images ,region based data points etc.
  • 16. C A N A B R A I N C O M P U T E R I N T E R F A C E C O N V E R T Y O U R T H O U G H T S T O T E X T ?
  • 17. Functional MRI / Near Infrared Imaging can detect neuron signals based on metabolic activities which becomes # 1 # 2 # 3 Electrocorticography [ECoG] / Magnetoencephalography[MEG] can be used to detect electromagnetic activities in neurons responding to speech Phones-A database of patterns of neural signals that could now be matched to speech elements or “phones” Measuring Neuron activity ..
  • 18.