tugas STBI

JAWABAN :

Term	Doc ID
2 breakthrough	1
3 drug	1
4 for	1
9 schizophrenia	1
6 new	2
9 schizophrenia	2
3 drug	2
6 new	3
1 approach	3
4 for	3
10 treatment	3
7 of	3
9 schizophrenia	3
6 new	4
5 hopes	4
4 for	4
9 schizophrenia	4
8 patients	4

Term	Doc ID
Approach	3
Breaktrough	1
Drug	1
Drug	2
For	1
For	3
For	4
Hopes	4
New	2
New	3
New	4
Of	3
Patients	4
Schizophrenia	1
Schizophrenia	2
Schizophrenia	3
Schizophrenia	4
Treatmen	3

Term doc.freq Posting List

Approach 1 ------à 3

Breaktrough 1 ------à 1

Drug 2 ------à 1 ------à 2

For 3 ------à 1 ------à 3 ------à 4

Hopes 4 ------à 4

New 3 ------à 2 ------à 3 ------à 4

Of 1 ------à 3

Patients 1 ------à 4

Schizophrenia 4 ------à 1 ------à 2 ------à 3 ----à 4

Treatmen 1 ------à 3

Exercise 1.2.

Term	Doc 1	Doc 2	Doc 3	Doc 4
Approach	0	0	1	0
Breaktrough	1	0	0	0
Drug	1	1	0	0
For	1	0	1	1
Hopes	0	0	0	1
New	0	1	1	1
Of	0	0	1	0
Patients	0	0	0	1
Schizophrenia	1	2	3	4
Treatmen	0	0	1	0

Exercise 1.7

( Tangerine OR Trees ) AND ( Marmalade OR Skies ) AND ( Kaleidoscope OR Eyes )

Term Freak ( tangerine OR trees) = ( 46653 + 316812 ) = 363456

Eyes 213312 ( marmalade OR skies ) = ( 107913 + 271658 )

Kaleidoscope 87009 = 379571

Marmalade 107913 ( kaleidoscope OR eyes ) = ( 87009 + 213312)

Skies 271653 = 300321

Tangerine 46653

Trees 316812

Exercise 1.10

INTERSECT (x,y)

answer ß ( )

while x = nil OR y = nil

do if doc ID ( x ) = doc ID ( y )

then ADD ( answer,doc ID ( x ))

x ß next ( x )

y ß next ( y )

else if doc ID ( x ) <>

then x ß next ( x )

else y ß next ( y )