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E f f i c i e n t A l g o r i t h m s a n d U - - PowerPoint PPT Presentation

E f f i c i e n t A l g o r i t h m s a n d U s e r I n t e r a c t i o n f o r M e t a d a t a E x t r a c t i o n f r o m H i s t o r i c a l M a p s Benedikt Budig,


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SLIDE 1

E f f i c i e n t A l g

  • r

i t h m s a n d U s e r I n t e r a c t i

  • n

f

  • r

M e t a d a t a E x t r a c t i

  • n

f r

  • m

H i s t

  • r

i c a l M a p s

Benedikt Budig, Universität Würzburg

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SLIDE 2

O v e r v i e w

  • H

i s t

  • r

i c a l M a p s : w h a t a n d w h y ?

  • S

k e t c h

  • f

a P i p e l i n e

– f

r

  • m

b i t m a p i m a g e t

  • g

e

  • r

e f e r e n c e d m e t a d a t a

  • M
  • d

u l e 1 : L

  • c

a t e M a p E l e m e n t s

  • M
  • d

u l e 2 : M a t c h L a b e l s a n d P l a c e M a r k e r s

  • O

p e n Q u e s t i

  • n

s & F u t u r e W

  • r

k

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SLIDE 3
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SLIDE 4
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SLIDE 5
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SLIDE 6
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SLIDE 7
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SLIDE 8
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SLIDE 9
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SLIDE 10
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SLIDE 11
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SLIDE 12
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SLIDE 13
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SLIDE 14

S t u d y h i s t

  • r

i c a l m a p s : w h y ?

  • M

a n y l i b r a r i e s h a v e l a r g e c

  • l

l e c t i

  • n

s

  • f

h i s t

  • r

i c a l m a p s

  • R

e l e v a n t f

  • r

t h e ( d i g i t a l ) h u m a n i t i e s

– H

i s t

  • r

y

  • f

c a r t

  • g

r a p h y

– G

e n e r a l h i s t

  • r

y

– S

p e c i f i c e x a m p l e :

  • n
  • m

a s t i c s

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SLIDE 15

Wh a t h a p p e n s w i t h h i s t

  • r

i c a l m a p s ?

  • S

t

  • r

e d i n a l i b r a r y b a s e m e n t

– R

e t r i e v a b l e b y b i b l i

  • g

r a p h i c i n f

  • r

m a t i

  • n
  • H

i g h

  • q

u a l i t y b i t m a p s c a n s ,

  • n

l i n e c a t a l

  • g

u e

– B

r

  • w

s a b l e b y b i b l i

  • g

r a p h i c i n f

  • r

m a t i

  • n
  • U

s e f u l q u e r i e s ?

– I

n a c t u a l r e s e a r c h p r a c t i c e

– B

y i n t e r e s t e d l a y p e

  • p

l e

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SLIDE 16

M e t a d a t a : w h a t ?

  • C
  • n

t a i n e d s e t t l e m e n t s

  • L

a n d s c a p e t

  • p
  • g

r a p h y

  • G

e

  • p
  • l

i t i c a l f e a t u r e s

  • I

d e a l l y : g e

  • r

e f e r e n c e d

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SLIDE 17

M e t a d a t a : h

  • w

?

  • D
  • i

t b y h a n d

  • S
  • f

t w a r e : u s a b i l i t y i m p r

  • v

e m e n t s

– G

a i n s i n e f f i c i e n c y a r e l i m i t e d

  • S
  • f

t w a r e : c

  • m

p u t e r v i s i

  • n

– N

  • p

a n a c e a , b u t c a n w

  • r

k w e l l f

  • r

r e s t r i c t e d c

  • r

p

  • r

a

– S

i g n i f i c a n t c u s t

  • m

R & D e f f

  • r

t e v e r y t i m e

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SLIDE 18

F

  • r

e x a m p l e . . .

  • F
  • r

e s t

  • c
  • v

e r a n a l y s i s

  • f

t h e “ S i e g f r i e d M a p ” [ L e y k , B

  • e

s c h , W e i b e l ]

  • 6

s h e e t s , p r

  • d

u c e d 1 8 7 t

  • 1

9 2 2

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SLIDE 19

O u r s c

  • p

e

  • W

e c

  • n

s i d e r m a p s f r

  • m

e a r l y m

  • d

e r n p e r i

  • d

f

  • r

w a r d

  • U

n i q u e g r a p h i c a l s t y l e s

  • D

i f f e r e n t f

  • n

t s , h a n d w r i t i n g

  • D

i f f e r e n t c a r t

  • g

r a p h i c c

  • n

v e n t i

  • n

s

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SLIDE 20

S

  • w

h a t n

  • w

?

  • S

p l i t p r

  • b

l e m i n t

  • s

m a l l e r g

  • a

l s

  • D

e s i g n a m

  • d

u l a r p i p e l i n e

S e g m e n t a t i

  • n

C l u s t e r i n g a n d M a t c h i n g O p t i c a l C h a r a c t e r R e c

  • g

n i t i

  • n

G e

  • r

e f e r e n c i n g

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SLIDE 21

S e g m e n t a t i

  • n

C l u s t e r i n g a n M a t c h i n

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SLIDE 22

S e g m e n t a t i

  • n
  • S

m a l l e r g

  • a

l s

  • L
  • k

f

  • r
  • n

e p a r t i c u l a r e l e m e n t

  • n
  • n

e m a p

[ B u d i g a n d v a n D i j k 2 1 5 ]

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SLIDE 23
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SLIDE 24

[ D e m

  • ]
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SLIDE 25

I n g r e d i e n t 1 : T e m p l a t e M a t c h i n g

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SLIDE 26

T e m p l a t e m a t c h i n g

  • F

i n d a p p r

  • x

i m a t e r e p e a t

  • c

c u r r e n c e s

  • f

a n e x a m p l e i m a g e

  • H

e r e :

– 1

  • B

i t b l a c k

  • a

n d

  • w

h i t e

– O

n l y c

  • n

s i d e r s t r a n s l a t i

  • n

– P

e r c e n t a g e

  • c
  • r

r e c t s c

  • r

e

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SLIDE 27

M a t c h i n g s c

  • r

e

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SLIDE 28

I n g r e d i e n t 2 : A c t i v e L e a r n i n g

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SLIDE 29

D a t a s e t s

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SLIDE 30

R O C

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SLIDE 31

L e a r n i n g c u r v e s

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SLIDE 32

S e g m e n t a t i

  • n

C l u s t e r i n g a n d M a t c h i n g O p t i c a l C h a r R e c

  • g

n i t i

  • n
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SLIDE 33

M a t c h i n g L a b e l s a n d P l a c e M a r k e r s

  • A

s s u m p t i

  • n

: l a b e l s a n d m a r k e r s a l r e a d y d e t e c t e d

  • M

a t c h t h e c

  • r

r e s p

  • n

d i n g

  • n

e s

[ B u d i g , v a n D i j k , W

  • l

f f , 2 1 4 ]

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SLIDE 34

W a n t e d : a M a t c h i n g

  • F

i n d a m a t c h i n g

  • f

l a b e l s a n d p l a c e m a r k e r s

  • N
  • 1
  • t
  • 1

a s s i g n m e n t p

  • s

s i b l e

  • B

a s i c a s s u m p t i

  • n

: l a b e l s a r e n e a r t h e i r c

  • r

r e s p

  • n

d i n g m a r k e r s

  • G

r e e d y s t r a t e g y ? → d

  • e

s n

  • t

w

  • r

k w e l l !

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SLIDE 35

E x p e r i m e n t a l R e s u l t s

  • F

r a n c k e n l a n d t ( 1 5 3 3 )

– 5

3 9 m a r k e r s , 5 2 4 l a b e l s

– o

u r a l g

  • r

i t h m : e r r

  • r

r a t e 3 . 5 %

– g

r e e d y a l g

  • r

i t h m : e r r

  • r

r a t e 1 7 . 8 %

  • C

i r c u l u s F r a n c

  • n

i c u s ( 1 7 6 )

– 1

6 6 3 m a r k e r s , 1 6 6 9 l a b e l s

– o

u r a l g

  • r

i t h m : e r r

  • r

r a t e 1 . 3 %

– g

r e e d y a l g

  • r

i t h m : e r r

  • r

r a t e 5 . 9 %

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SLIDE 36

Wh a t n

  • w

?

  • E

r r

  • r

r a t e s i n e x p e r i m e n t s : 1 . 3 % a n d 3 . 5 %

  • U

n c l e a r s i t u a t i

  • n

s :

  • M

a n u a l v e r i f i c a t i

  • n
  • r

c

  • r

r e c t i

  • n

n e c e s s a r y

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SLIDE 37

S e n s i t i v i t y

  • O

n l y s h

  • w

a s s i g n m e n t s

  • u

r a l g

  • r

i t h m s i s u n c e r t a i n a b

  • u

t

  • C

a l c u l a t e s e n s i t i v i t y a n a l y s i s f

  • r

t h e m a t c h i n g

→ F

  • r

e a c h a s s i g n m e n t , c a l c u l a t e t h e b e s t m a t c h i n g t h a t d

  • e

s n

  • t

u s e i t a n d s e e h

  • w

m u c h w

  • r

s e i t i s .

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SLIDE 38

C

  • n

c l u s i

  • n
  • H

i s t

  • r

i c a l m a p s a r e c

  • l

, b u t h a r d t

  • s

e a r c h

  • M
  • d

u l a r p i p e l i n e i s r e a s

  • n

a b l e

  • H

u m a n e f f

  • r

t i s n e c e s s a r y s m a r t i n t e r a c t i

  • n

s ! →

  • T

e m p l a t e m a t c h i n g & a c t i v e l e a r n i n g w

  • r

k w e l l

  • S

e n s i t i v i t y a n a l y s i s f

  • r

e f f i c i e n t i n t e r a c t i

  • n

s

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SLIDE 39

O p e n Q u e s t i

  • n

s & F u t u r e W

  • r

k

  • S
  • l

v e m

  • r

e s m a l l g

  • a

l s f r

  • m

t h e p i p e l i n e , t h e n i n t e g r a t e

– C

l u s t e r t e m p l a t e m a t c h e s ( e . g . i n t

  • l

a b e l s )

– U

s e a l r e a d y c

  • l

l e c t e d i n f

  • r

m a t i

  • n

f

  • r

O C R

– G

e

  • r

e f e r e n c i n g , . . .

  • S

h

  • u

l d t h e p i p e l i n e r e a l l y b e s e q u e n t i a l ?

  • C

r

  • w

d s

  • u

r c i n g ?

S e g m e n t a t i

  • n

C l u s t e r i n g a n d M a t c h i n g O p t i c a l C h a r a c t e r R e c

  • g

n i t i

  • n

G e

  • r

e f e r e n c i n g

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SLIDE 40

S m a r t p h

  • n

e

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SLIDE 41

O p e n Q u e s t i

  • n

s & F u t u r e W

  • r

k

  • D

e v e l

  • p

r e m a i n i n g m

  • d

u l e s i n e x t r a c t i

  • n

p i p e l i n e

– C

l u s t e r t e m p l a t e m a t c h e s ( e . g . i n t

  • l

a b e l s )

– U

s e a l r e a d y c

  • l

l e c t e d i n f

  • r

m a t i

  • n

f

  • r

O C R

– G

e

  • r

e f e r e n c i n g , . . .

  • S

h

  • u

l d t h e p i p e l i n e r e a l l y b e s e q u e n t i a l ?

  • C

r

  • w

d s

  • u

r c i n g ! Y e s , b u t h

  • w

e x a c t l y ?

  • Wh

a t

  • t

h e r a l g

  • r

i t h m i c a l l y

  • g

u i d e d u s e r i n t e r a c t i

  • n

s ?