tugas 1 STBI

Exercise 1.2

Bandingkan Dokumen di bawah ini

1. Doc 1 : breathrough drug for schizophrenia
2. Doc 2 : new schizophrenia drug
3. Doc 3 : new approach for treatment of schizophrenia
4. Doc 4 : new hopes for schizophrenia patients

a. Gambar matriks kata-kata yang berhubungan dengan dokumen di atas

	Doc  1	Doc 2	Doc 3	Doc 4
Approuch	0	0	1	0
Breakthrough	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	1	1	1
Treatment	0	0	1	0

 

b. Gambar reperesentasi index sesuai dengan dokumen di atas

 

Term	Doc ID
Breakthrough	1
Drug	1
For	1
Schizophrenia	1
New	2
Schizophrenia	2
Drug	2
New	3
Approach	3
For	3
Treatment	3
Of	3
Schizophrenia	3
New	4
Hopes	4
For	4
Schizophrenia	4
Patients	4

Term	Doc ID
Approach	3
Breakthrough	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
Treatment	3

 

Term	Doc. Freg
Approach	1
Breakthrough	1
Drug	2
For	3
Hopes	4
New	3
Of	1
Patients	1
Schizophrenia	4
Treatment	1

 

Exercise 1.7

Rekomendasikan pemrosesan order query untuk (tangerine OR tress) AND (marmalade OR skies) AND (kaleidoscope OR eyes) apabila hasil daftar posting yang diketahui sebagai berikut:

 

(tangerine OR trees) AND (marmalade OR skies) AND (kaleidoscope OR eyes)

Term          Postings size       

eyes               213312         

kaleidoscope    87009              

marmalade     107913

skies               271658              

tangerine          46653

trees               316812

(tangerine OR trees) AND (marmalade OR skies) AND (kaleidoscope OR eyes)

maka hasilnya trees AND skies AND eyes

exercise 1. 10

INTERSECT (X,Y)

Answer ¬ ( )

While x ≠ NIL OR y ≠ NIL

Do if doc 10 (x) = doc 10 (y)

Then ADD (answer, doc 10 (x))

X ¬ next (x)

Y ¬ next (y)

Perbandingan Query Boolean Google dengan Yahoo

CONTOH QUERY BOOLEAN